Fractionation treatment device for industrial wastewater and wastewater treatment control method

Abstract

The application belongs to the field of wastewater treatment, and discloses an industrial wastewater grading treatment device and a wastewater treatment control method. The device comprises multiple grading treatment unit groups and a unified control unit. Each grading treatment unit group is sequentially provided with a first-stage pretreatment unit, a second-stage biochemical treatment unit and a third-stage deep treatment unit. Switching valves and water quality pollutant concentration sensors are respectively arranged at the inlet and outlet of each group. All electric control components are connected to the unified control unit. The unified control unit can obtain the total actual treatment capacity of each group. Before a new batch of wastewater is introduced, the preset treatment capacity and the capacity fluctuation coefficient of the batch are obtained first to determine the corresponding treatment capacity range. If the total actual treatment capacity is within the range, the wastewater is directly introduced. If the total actual treatment capacity is not within the range, the treatment parameters are adjusted, the total actual treatment capacity is corrected to be within the range, and then the wastewater is introduced. The effective management and control of the wastewater treatment capacity of the grading treatment device can be realized.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and more specifically, to a graded treatment device and a wastewater treatment control method for industrial wastewater. Background Technology

[0002] In industrial wastewater treatment, given the complex composition and significant differences in pollutant concentrations, existing technologies typically employ staged treatment units to purify the wastewater. These units generally consist of multiple functional modules arranged sequentially, including pretreatment, primary biological treatment, and advanced treatment units. As wastewater flows through each stage, different types of pollutants are gradually degraded and separated, ultimately ensuring the effluent meets the corresponding discharge standards. Compared to single-stage treatment processes, staged treatment allows for the matching of appropriate processes to the characteristics of pollutants at different stages, improving treatment efficiency and effectiveness to a certain extent. It is currently widely used in wastewater treatment scenarios in various industrial parks and chemical enterprises, and is one of the mainstream technologies in the field.

[0003] Currently, when using graded treatment devices for industrial wastewater treatment, it is impossible to dynamically adjust the actual wastewater treatment capacity of each treatment unit according to fluctuations in the influent volume and changes in pollutant concentration. This can easily lead to redundant unit treatment capacity under low load and overload under high load. Some treatment units are in an unreasonable operating load range for a long time, which will not only shorten the service life of the core components of the device, but also lead to a decrease in the stability of wastewater treatment effect, making it difficult to ensure that the effluent quality meets the standards in a long-term stable manner. At the same time, it will also cause unnecessary waste of reagents and energy during the treatment process, increasing the overall treatment cost of industrial wastewater. Summary of the Invention

[0004] The purpose of this application is to provide a graded treatment device and a wastewater treatment control method for industrial wastewater, which solves the technical problem that existing graded treatment devices cannot effectively control the wastewater treatment capacity of the devices when treating industrial wastewater, and achieves the technical effect of effectively controlling the wastewater treatment capacity of the graded treatment devices.

[0005] In a first aspect, embodiments of this application provide a graded treatment device for industrial wastewater, comprising: multiple graded treatment unit groups and a unified control unit; each graded treatment unit group includes a primary pretreatment unit, a secondary biochemical treatment unit, and a tertiary advanced treatment unit arranged sequentially; each graded treatment unit group has an inlet switching valve at its inlet end and an outlet switching valve at its outlet end; each graded treatment unit group has a water quality pollutant concentration sensor at both its inlet and outlet ends; all inlet switching valves, outlet switching valves, and water quality pollutant concentration sensors are connected to the unified control unit; the unified control unit is used to obtain the total actual treatment capacity of the currently configured multiple graded treatment unit groups; the unified control unit is also used to obtain the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater before introducing it into the multiple graded treatment unit groups for treatment, and to determine the range from preset treatment capacity × (1 - capacity fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient). The total actual treatment capacity is within the treatment capacity range; when the total actual treatment capacity is within the treatment capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment; when the total actual treatment capacity is not within the treatment capacity range, the unified control unit controls the adjustment of the treatment parameters of multiple graded treatment unit groups so that the total actual treatment capacity of multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment.

[0006] In one possible implementation, the unified control unit is further configured to obtain the pollution fluctuation coefficient of the new batch of industrial wastewater before introducing it into the multiple graded treatment unit groups, and determine the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient - pollution fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient + pollution fluctuation coefficient); the unified control unit is further configured to control the introduction of the new batch of industrial wastewater into the multiple graded treatment unit groups when the total actual treatment capacity is within the treatment capacity range; when the total actual treatment capacity is not within the treatment capacity range, the unified control unit controls the adjustment of the treatment parameters of the multiple graded treatment unit groups so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then the unified control unit controls the introduction of the new batch of industrial wastewater into the multiple graded treatment unit groups.

[0007] In another possible implementation, the unified control unit is also used to determine the ratio of the corrected total actual treatment capacity to the preset treatment capacity as the treatment cost coefficient. With the goal of minimizing the treatment cost coefficient, the unified control unit adjusts the treatment parameters of multiple graded treatment unit groups until the corrected total actual treatment capacity is within the treatment capacity range. Then, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

[0008] In another possible implementation, the unified control unit is also used to obtain the adjustment energy consumption coefficient corresponding to the adjustment of the total actual treatment capacity of multiple graded treatment unit groups during the process of adjusting the total actual treatment capacity; the unified control unit adjusts the treatment parameters of multiple graded treatment unit groups with the goal of minimizing the sum of the treatment cost coefficient and the adjustment energy consumption coefficient, until the total actual treatment capacity is within the treatment capacity range, and then the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

[0009] In another possible implementation, the unified control unit is also used to determine multiple adjustment treatment unit groups among multiple graded treatment unit groups when the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient. The unified control unit aims to minimize the sum of the treatment cost coefficient and the adjustment energy consumption coefficient. The unified control unit controls the synchronous adjustment of the treatment parameters of multiple adjustment treatment unit groups so that the total actual treatment capacity of multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity. After the corrected total actual treatment capacity is within the treatment capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

[0010] In another possible implementation, the unified control unit is further configured to, when the pollution fluctuation coefficient is greater than or equal to a preset pollution fluctuation coefficient, aim to minimize the sum of the treatment cost coefficient and the adjustment energy consumption coefficient. The unified control unit then controls the synchronous adjustment of the treatment parameters of multiple adjustment treatment unit groups, adjusting the total actual treatment capacity of the multiple graded treatment unit groups to a corrected total actual treatment capacity. This adjustment continues until the corrected total actual treatment capacity is within the treatment capacity range. Then, the water quality optimization coefficient of the multiple adjustment treatment unit groups is detected by water quality pollutant concentration sensors. The water quality optimization coefficient characterizes the degree of water quality optimization before and after water treatment by the adjustment treatment unit groups. The unified control unit is also used to obtain the pre-set pollution fluctuation coefficients corresponding to each of the multiple adjustment treatment unit groups. A water quality optimization coefficient is set. When the water quality optimization coefficient of each adjustment treatment unit group is greater than or equal to the preset water quality optimization coefficient corresponding to each adjustment treatment unit group, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment. The unified control unit is also used to perform secondary treatment parameter optimization on the first adjustment treatment unit group when the first water quality optimization coefficient of any first adjustment treatment unit group in the multiple adjustment treatment unit groups is less than the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group, until the first water quality optimization coefficient of the first adjustment treatment unit group is greater than or equal to the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group, and then the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment.

[0011] In another possible implementation, the unified control unit is also used to determine the first adjustment treatment unit group among multiple graded treatment unit groups when the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient; the unified control unit controls the adjustment of the treatment parameters of the first adjustment treatment unit group so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

[0012] In another possible implementation, the unified control unit is further configured to adjust the treatment parameters of the first adjustment treatment unit group when the pollution fluctuation coefficient is less than a preset pollution fluctuation coefficient, so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to a corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range. Then, the first water quality optimization coefficient of the first adjustment treatment unit group is detected by the water quality pollutant concentration sensor of the first adjustment treatment unit group. The first water quality optimization coefficient characterizes the degree of water quality optimization before and after water treatment by the first adjustment treatment unit group. The unified control unit is also configured to obtain the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group. When the first water quality optimization parameter is greater than or equal to the first preset water quality optimization coefficient... When the coefficient is set, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment; when the first water quality optimization parameter is less than the first preset water quality optimization coefficient, the treatment parameters of the upper-level treatment unit of the first adjustment treatment unit group are optimized, and the upper-level water quality optimization coefficient of the upper-level adjustment treatment unit group is detected by the water quality pollutant concentration sensor of the upper-level adjustment treatment unit group; wherein, the upper-level water quality optimization coefficient characterizes the degree of water quality optimization before and after water quality treatment by the upper-level adjustment treatment unit group; the unified control unit is also used to obtain the upper-level preset water quality optimization coefficient corresponding to the upper-level adjustment treatment unit group; when the upper-level water quality optimization parameter is greater than or equal to the upper-level preset water quality optimization coefficient, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment.

[0013] Secondly, embodiments of this application provide a wastewater treatment control method using the aforementioned graded treatment device for industrial wastewater. The method includes: obtaining the total actual treatment capacity of a plurality of currently configured graded treatment unit groups; before introducing a new batch of industrial wastewater into the plurality of graded treatment unit groups, obtaining the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater, and determining a treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient); when the total actual treatment capacity is within the treatment capacity range, introducing a new batch of industrial wastewater into the plurality of graded treatment unit groups; when the total actual treatment capacity is not within the treatment capacity range, adjusting the treatment parameters of the plurality of graded treatment unit groups so that the total actual treatment capacity of the plurality of graded treatment unit groups is adjusted to a corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then introducing a new batch of industrial wastewater into the plurality of graded treatment unit groups.

[0014] In one possible implementation, the method further includes: before introducing a new batch of industrial wastewater into the multiple graded treatment unit groups, obtaining the pollution fluctuation coefficient of the new batch of industrial wastewater treatment, and determining a treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient - pollution fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient + pollution fluctuation coefficient); when the total actual treatment capacity is within the treatment capacity range, introducing a new batch of industrial wastewater into the multiple graded treatment unit groups; when the total actual treatment capacity is not within the treatment capacity range, adjusting the treatment parameters of the multiple graded treatment unit groups so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then introducing a new batch of industrial wastewater into the multiple graded treatment unit groups.

[0015] The beneficial effects of the embodiments in this application compared with the prior art are: This application provides a graded treatment device for industrial wastewater. A unified control unit is used to obtain the total actual treatment capacity of multiple currently configured graded treatment unit groups. Before introducing a new batch of industrial wastewater into the multiple graded treatment unit groups, the unified control unit also obtains the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater, and determines a treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient). When the total actual treatment capacity is within the treatment capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups. When the total actual treatment capacity is outside the treatment capacity range, the unified control unit controls the adjustment of the treatment parameters of the multiple graded treatment unit groups, so that the treatment capacity range of the multiple graded treatment unit groups is within the corrected treatment capacity range, until the total actual treatment capacity is within the corrected treatment capacity range, at which point the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups. This application avoids substandard wastewater treatment due to insufficient treatment capacity or resource waste due to excess capacity, improving the overall capacity adaptability of the treatment process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the control structure of a first type of graded treatment device for industrial wastewater provided in the embodiments of this application; Figure 2A schematic flowchart of the first wastewater treatment control method provided in the embodiments of this application; Figure 3 This is a schematic flowchart of a second wastewater treatment and control method provided in an embodiment of this application. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component or structure is referred to as being "fixed to" or "set on" another component or structure, it can be directly on or indirectly on the other component or structure. When a component or structure is referred to as being "connected to" another component or structure, it can be directly connected to or indirectly connected to the other component or structure.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device, component, or structure referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] Currently, when using graded treatment devices to treat industrial wastewater, it is impossible to dynamically adjust the actual wastewater treatment capacity of each treatment unit according to fluctuations in the influent water volume and changes in pollutant concentration.

[0023] Based on the above reasons, this application provides a graded treatment device for industrial wastewater, comprising: multiple graded treatment unit groups and a unified control unit; each graded treatment unit group includes a primary pretreatment unit, a secondary biochemical treatment unit, and a tertiary advanced treatment unit arranged sequentially; each graded treatment unit group has an inlet switching valve at its inlet end and an outlet switching valve at its outlet end; each graded treatment unit group has a water quality pollutant concentration sensor at both its inlet and outlet ends; all inlet switching valves, outlet switching valves, and water quality pollutant concentration sensors are connected to the unified control unit; the unified control unit is used to obtain the total actual treatment capacity of the currently configured multiple graded treatment unit groups; the unified control unit is also used to obtain the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater before introducing it into the multiple graded treatment unit groups for treatment, and to determine the range from preset treatment capacity × (1 - capacity fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient). The system determines the treatment capacity range. When the total actual treatment capacity is within this range, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment. When the total actual treatment capacity is outside this range, the unified control unit adjusts the treatment parameters of the multiple graded treatment unit groups to ensure that their treatment capacity range falls within the corrected range. Once the total actual treatment capacity is within the corrected range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment. This embodiment of the application avoids substandard wastewater treatment due to insufficient treatment capacity or resource waste caused by excess capacity, thus improving the overall capacity adaptability of the treatment process.

[0024] In some scenarios, the graded treatment device for industrial wastewater according to the embodiments of this application can be applied to the centralized treatment of wastewater in chemical industrial parks, degrading toxic substances in stages according to pollutant concentration, achieving stable discharge in compliance with standards, and reducing overall treatment costs.

[0025] In other scenarios, the graded treatment device for industrial wastewater according to the embodiments of this application can also be applied to the wastewater treatment scenarios of small manufacturing enterprises, adapting to the characteristics of water volume fluctuations, flexibly adjusting the treatment levels, and meeting the needs of low-load operation.

[0026] The following describes in detail an industrial wastewater grading treatment device provided in the embodiments of this application, using specific examples.

[0027] Figure 1 A schematic diagram of the control structure of the first type of graded treatment device for industrial wastewater provided in the embodiments of this application is shown below. Figure 1 As shown below, a graded treatment device for industrial wastewater in an embodiment of this application will be described in detail.

[0028] like Figure 1 As shown, the industrial wastewater staged treatment device in this implementation includes multiple staged treatment unit groups and a unified control unit. Each staged treatment unit group includes a primary pretreatment unit, a secondary biochemical treatment unit, and a tertiary advanced treatment unit arranged sequentially. Each staged treatment unit group has an inlet switching valve at its inlet and an outlet switching valve at its outlet. Water quality pollutant concentration sensors are installed at both the inlet and outlet of each staged treatment unit group. All inlet switching valves, outlet switching valves, and water quality pollutant concentration sensors are connected to the unified control unit.

[0029] In this implementation, the wastewater treatment system includes multiple graded treatment unit groups and a unified control unit. Different graded treatment unit groups can independently complete the entire wastewater treatment process, and the number of operating units can be adjusted according to treatment needs to adapt to wastewater treatment scenarios with different water volumes and pollution levels.

[0030] In this implementation, each graded treatment unit group includes a primary pretreatment unit, a secondary biochemical treatment unit, and a tertiary advanced treatment unit arranged in sequence. The three units are connected in sequence according to the direction of sewage flow, and the sewage can complete different stages of pollution treatment in sequence.

[0031] It should be noted that the primary pretreatment unit is used to remove large suspended solids, floating solids, and settleable solid pollutants from wastewater, thereby reducing the pollution load on subsequent treatment units.

[0032] For example, a primary pretreatment unit can be equipped with a bar screen, an equalization tank, and a primary sedimentation tank in sequence. The bar screen intercepts large floating and suspended solids, the equalization tank balances the water quality and quantity of the wastewater, and the primary sedimentation tank removes denser solid impurities from the wastewater.

[0033] It should be noted that the secondary biological treatment unit is used to decompose and remove organic pollutants in colloidal and dissolved states in wastewater by utilizing the metabolic activity of microorganisms, thereby reducing the biochemical oxygen demand and chemical oxygen demand of the wastewater.

[0034] For example, a secondary biological treatment unit can adopt an activated sludge process structure, which may include an aeration tank, a secondary sedimentation tank, and supporting aeration and sludge return systems. The aeration tank provides an aerobic metabolic environment for microorganisms to decompose organic matter, and the secondary sedimentation tank completes the separation of activated sludge and treated water.

[0035] It should be noted that the tertiary advanced treatment unit is used to further remove pollutants remaining after the secondary biological treatment, and improve the effluent quality to meet the requirements for discharge or reuse.

[0036] For example, a three-stage deep treatment unit can adopt a "filtration and disinfection" structure. The filtration unit can be a quartz sand filter to remove residual suspended solids and colloids, and the disinfection unit can be an ultraviolet disinfection module to kill residual pathogenic microorganisms in the water.

[0037] In this implementation, each graded treatment unit group is equipped with an inlet switching valve at its inlet end, which can independently control whether the corresponding graded treatment unit group receives water.

[0038] In this implementation, each graded treatment unit group is equipped with an outlet switching valve at its outlet end, which can independently control whether the corresponding graded treatment unit group discharges the treated water.

[0039] In this implementation, each graded treatment unit group is equipped with a water pollutant concentration sensor at both the inlet and outlet ends, which can collect pollutant concentration data of the inlet and outlet water respectively.

[0040] It should be noted that water pollutant concentration sensors are used to detect the concentration of target pollutants in water bodies. Different types of sensors can be adapted to the detection needs of different pollutants, and the detection data can be output in the form of electrical signals.

[0041] For example, a COD sensor can be installed at the inlet, which uses an electrochemical detection principle to convert the detected COD concentration into a corresponding electrical signal output. Similarly, an ammonia nitrogen sensor can be installed at the outlet, which can also convert the ammonia nitrogen concentration into a recognizable electrical signal output.

[0042] In this implementation, all inlet switching valves, outlet switching valves, and water quality pollutant concentration sensors are connected to a unified control unit. The unified control unit can receive the detection data from all sensors and send opening and closing control signals to each switching valve.

[0043] It should be noted that the unified control unit can be an industrial programmable logic controller, an embedded microcontroller control module, or an industrial control computer equipped with wastewater treatment control programs.

[0044] For example, the unified control unit is selected from the Siemens S7 series industrial programmable logic controller. This controller can receive multiple sensor signals and output multiple control signals, adapting to control scenarios with multiple valves and multiple sensors.

[0045] In this implementation, the unified control unit receives data from the water pollutant concentration sensor, controls the opening and closing of the inlet and outlet switching valves, and adjusts the operating status of the graded treatment unit group.

[0046] It should be noted that the unified control unit can continuously collect pollutant concentration data at the inlet and outlet of each graded treatment unit group, compare the concentration data with the preset water quality standards, determine whether the corresponding graded treatment unit group meets the operating requirements, and then output the corresponding valve control signal to adjust the opening and closing status.

[0047] The unified control unit in this embodiment is used to obtain the total actual processing capacity of the currently configured multiple hierarchical treatment unit groups. The unified control unit is also used to obtain the preset processing capacity and capacity fluctuation coefficient of the new batch of industrial wastewater before introducing the new batch of industrial wastewater into the multiple hierarchical treatment unit groups, and to determine the processing capacity range from preset processing capacity × (1 - capacity fluctuation coefficient) to preset processing capacity × (1 + capacity fluctuation coefficient).

[0048] In this implementation, the unified control unit can count all hierarchical processing unit groups that are currently in normal operation and summarize the total actual processing capacity that all normal hierarchical processing unit groups can provide.

[0049] It should be noted that when the unified control unit obtains the total actual processing capacity of multiple hierarchical processing unit groups, it can first read the preset rated processing capacity of each hierarchical processing unit group one by one, then confirm whether each hierarchical processing unit group is in an operational state, and finally sum up the rated capacities of all hierarchical processing unit groups in an operational state to obtain the total actual processing capacity.

[0050] For example, the unified control unit pre-stores the rated processing capacity parameters of each hierarchical processing unit group. If three hierarchical processing unit groups are detected to be operational, each with a corresponding rated capacity of 10m³, then... 3 / h, 15m 3 / h, 20m 3 / h, the unified control unit adds three capacity values ​​to obtain a total actual processing capacity of 45m. 3 / h.

[0051] In this implementation, the unified control unit can also obtain the preset treatment capacity and capacity fluctuation coefficient corresponding to the new batch of industrial wastewater treatment before introducing a new batch of industrial wastewater into multiple graded treatment unit groups, and then calculate and determine the treatment capacity range based on this.

[0052] It should be noted that when the unified control unit obtains the preset treatment capacity and capacity fluctuation coefficient of a new batch of industrial wastewater, it can read data from the connected upper-level production scheduling system or receive parameters input by the operator. The preset treatment capacity corresponds to the planned treatment volume of the new batch of industrial wastewater, and the capacity fluctuation coefficient corresponds to the deviation ratio between the actual treatment volume and the planned treatment volume.

[0053] For example, the production workshop enters a new batch of industrial wastewater with a planned treatment volume of 30m³ into the upper-level scheduling system. 3 / h, with a preset deviation ratio of 10%, the unified control unit reads the preset processing capacity of 30m from the upper-level scheduling system. 3 / h, capacity fluctuation coefficient 0.1.

[0054] It should be noted that when the unified control unit calculates the processing capacity range, it can complete the calculation according to the given formula, multiplying the preset processing capacity by (1 - capacity fluctuation coefficient) and (1 + capacity fluctuation coefficient) respectively to obtain the lower limit and upper limit of the capacity range, and finally determine the complete processing capacity range.

[0055] For example, the preset processing capacity is 30m. 3 / h, with a capacity fluctuation coefficient of 0.1, the lower limit of calculation is 30×(1-0.1)=27m. 3 / h, the upper limit of the calculation is 30×(1+0.1)=33m 3 / h, ultimately determining the processing capacity range to be 27m 3 / h to 33m 3 / h.

[0056] In this embodiment, when the total actual treatment capacity is within the treatment capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment. When the total actual treatment capacity is not within the treatment capacity range, the unified control unit controls the adjustment of the treatment parameters of the multiple graded treatment unit groups, so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, at which point the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

[0057] In this implementation, the unified control unit can compare and judge the total actual processing capacity and the processing capacity range after obtaining them. When the total actual processing capacity falls within the processing capacity range, it can directly control the opening of the water inlet channel to introduce a new batch of industrial wastewater for treatment.

[0058] It should be noted that when the unified control unit compares the total actual processing capacity with the processing capacity range, it can compare the value of the total actual processing capacity with the lower limit and the upper limit of the processing capacity range to determine whether the total actual processing capacity is between the two endpoint values.

[0059] For example, the processing capacity range is 27m 3 / h to 33m 3 / h, resulting in a total actual processing capacity of 30m³. 3 / h, after comparison by the unified control unit, it was confirmed that 30 is greater than 27 and less than 33, and the total actual processing capacity was determined to be within the processing capacity range.

[0060] It should be noted that when the total actual treatment capacity is within the treatment capacity range, the unified control unit can send an opening signal to the inlet switching valve of each graded treatment unit group to be operated. After all the corresponding inlet switching valves are opened, the new batch of industrial wastewater can be introduced into the graded treatment unit group for treatment.

[0061] For example, the total actual processing capacity is 30m³. 3 When the / h meets the range requirements, the unified control unit sends an opening command to the inlet switching valves of the two graded treatment unit groups to be operated. After receiving the signal, the two inlet switching valves open, and the new batch of industrial wastewater enters the two graded treatment unit groups along the inlet pipes and begins to be processed according to the process.

[0062] In this implementation, if the unified control unit finds that the total actual processing capacity is not within the processing capacity range after comparison, it can output corresponding control commands to adjust the processing parameters of multiple graded processing unit groups, adjust the original total actual processing capacity to the corrected total actual processing capacity, until the corrected total actual processing capacity falls within the processing capacity range, and then control the introduction of a new batch of industrial wastewater for treatment.

[0063] For example, the processing capacity range is 27m 3 / h to 33m 3 / h, the corrected total actual processing capacity is 32m 3 / h, after comparison by the unified control unit, it was confirmed that 32 is greater than 27 and less than 33, and it was determined that the corrected total actual processing capacity meets the requirements.

[0064] It should be noted that when the total actual treatment capacity is not within the treatment capacity range, the unified control unit can adjust the total actual treatment capacity by turning on and off different numbers of graded treatment unit groups, or adjust the influent flow rate of a single graded treatment unit group to adjust the total treatment capacity to meet the treatment needs of the current new batch of wastewater.

[0065] For example, the total actual processing capacity was originally 25m 3 / h, below the lower limit of the processing capacity range of 27m 3 / h, the unified control unit sends a water inlet start command to a standby hierarchical treatment unit group, starting the hierarchical treatment unit group to access the treatment process and increasing the total treatment capacity.

[0066] It should be noted that when the unified control unit obtains the corrected total actual processing capacity, it can recalculate the rated processing capacity of all the adjusted hierarchical processing unit groups that are in an operational state, and sum them up to obtain the corrected total actual processing capacity.

[0067] For example, originally two hierarchical processing unit groups were started, with a total capacity of 25m. 3 / h, during correction, a new rated capacity of 8m is added. 3 The standby unit at / h is recalculated by the unified control unit by adding the original capacity of the two operating units and the capacity of the newly added unit, resulting in a corrected total actual processing capacity of 33m. 3 / h.

[0068] It should be noted that after the total actual treatment capacity is corrected to meet the requirements, the unified control unit can send an opening signal to the inlet and outlet switching valves of all adjusted staged treatment unit groups to be put into operation, so that the new batch of industrial wastewater can be introduced to complete the treatment.

[0069] For example, the total actual processing capacity is corrected to 33m. 3 / h falls within the target range of 27m 3 / h to 33m 3 Within / h, the unified control unit sends an opening command to the inlet switching valves of the three waiting-to-operate graded treatment units. After all the inlet switching valves are opened, the new batch of industrial wastewater enters each graded treatment unit to begin treatment.

[0070] Through this implementation method, the unified control unit can first obtain the total actual treatment capacity of multiple current graded treatment unit groups, and then determine the appropriate treatment capacity range by combining the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater. The treatment parameters are adjusted according to the matching of the total actual treatment capacity and the range, which can adapt to the treatment capacity requirements of different batches of industrial wastewater and avoid the situation of insufficient or excessive treatment capacity.

[0071] With this implementation, water pollutant concentration sensors are installed at the inlet and outlet of each graded treatment unit group. These sensors can collect water pollutant concentration data at the corresponding locations in real time and transmit it to the unified control unit. The unified control unit can dynamically adjust the opening and closing status of the corresponding inlet and outlet switching valves based on this data, enabling flexible scheduling of the treatment load of each group and ensuring the operational stability of each graded treatment unit group.

[0072] This application embodiment also provides a graded treatment device for industrial wastewater. The unified control unit is further used to obtain the pollution fluctuation coefficient of the new batch of industrial wastewater before it is introduced into multiple graded treatment unit groups for treatment, and to determine the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient - pollution fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient, pollution fluctuation coefficient).

[0073] In this implementation, the pollution fluctuation coefficient of the new batch of industrial wastewater treatment is a key parameter reflecting the fluctuation of the pollution level of the batch of industrial wastewater. The pollution fluctuation coefficient is calculated based on the actual pollution detection data of the batch of wastewater through a corresponding algorithm, which can accurately reflect the range of changes in the pollution level of wastewater.

[0074] For example, the unified control unit can establish a signal connection with the water quality detection module in the industrial wastewater pretreatment stage, and receive the real-time data of multiple pollution indicators such as COD, BOD, and suspended solids of the new batch of industrial wastewater collected by the module. The data is compared and analyzed with the standard pollution indicators of this type of industrial wastewater, and the pollution fluctuation coefficient is obtained through variance calculation and other methods to ensure that the obtained parameters are true and reliable.

[0075] In this implementation, after obtaining the pollution fluctuation coefficient of a new batch of industrial wastewater treatment, the unified control unit can determine a reasonable treatment capacity range based on the preset treatment capacity, the capacity fluctuation coefficient, and the pollution fluctuation coefficient through specific calculation logic.

[0076] For example, if the preset processing capacity is 100m 3 / h, with a capacity fluctuation coefficient of 0.05 and a pollution fluctuation coefficient of 0.03, the lower limit of the treatment capacity range is calculated by multiplying the preset treatment capacity by (1 minus the capacity fluctuation coefficient and then minus the pollution fluctuation coefficient), and the upper limit is calculated by multiplying the preset treatment capacity by (1 plus the capacity fluctuation coefficient and then plus the pollution fluctuation coefficient), thus forming a treatment capacity range suitable for this batch of wastewater.

[0077] In some implementations, the unified control unit is also used to control the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups when the total actual treatment capacity is within the treatment capacity range. When the total actual treatment capacity is outside the treatment capacity range, the unified control unit controls the adjustment of the treatment parameters of the multiple graded treatment unit groups so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to a corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, at which point the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups.

[0078] In this implementation, different pretreatment control logics can be executed based on the matching results of the total actual processing capacity and the processing capacity range in the current scenario. After confirming the matching, the new batch of industrial wastewater can be introduced.

[0079] It should be noted that when the total actual processing capacity is within the processing capacity range, the unified control unit can send control signals to all the graded treatment units to be put into operation one by one, open the corresponding inlet switching valves, and allow the new batch of industrial wastewater to enter each unit for treatment according to the process.

[0080] For example, the total actual processing capacity is 30m. 3 / h, processing capacity range 27m 3 / h to 33m 3 / h, the matching result meets the requirements, and the unified control unit sends an opening command to the inlet switching valve of the two waiting-to-operate graded treatment unit groups. After the inlet switching valve is activated, the new batch of industrial wastewater enters the primary pretreatment unit, the secondary biochemical treatment unit, and the tertiary deep treatment unit in sequence to complete the treatment.

[0081] In this implementation, when the total actual processing capacity is not within the processing capacity range, the unified control unit can output corresponding control commands to adjust the processing parameters of multiple graded processing unit groups, adjust the original total actual processing capacity to the corrected total actual processing capacity, until the corrected total actual processing capacity falls within the processing capacity range, and then control the introduction of a new batch of industrial wastewater for treatment.

[0082] This implementation allows the unified control unit to simultaneously acquire the preset treatment capacity, capacity fluctuation coefficient, and pollution fluctuation coefficient of the new batch of industrial wastewater before it is introduced. By incorporating these two types of fluctuation coefficients into the calculation logic of the treatment capacity range, the capacity adaptation determination can cover the fluctuations of both water volume and pollution load variables, improving the rationality of capacity adaptation and avoiding overload problems after wastewater inflow. The adjustment of the treatment capacity range can be flexibly adapted to the pollution characteristics of different batches of industrial wastewater by assigning values ​​to the pollution fluctuation coefficient. Without modifying the hardware structure of the graded treatment unit group, it can adapt to the treatment needs of different batches of industrial wastewater with large differences in pollution levels, improving the scenario adaptability of the entire device.

[0083] With this implementation, when the unified control unit determines that the total actual treatment capacity is not within the treatment capacity range, it can dynamically adjust the treatment parameters of multiple graded treatment unit groups to correct the total actual treatment capacity to the range of calculated treatment capacity before introducing wastewater. This can ensure that the actual treatment capacity can simultaneously adapt to the fluctuations in water volume and pollution load, reducing the operating pressure on subsequent treatment units.

[0084] This application also provides a graded treatment device for industrial wastewater, wherein the unified control unit is further used to determine the ratio of the corrected total actual treatment capacity to the preset treatment capacity as a treatment cost coefficient.

[0085] In this implementation, the unified control unit is also used to determine the ratio of the corrected total actual processing capacity to the preset processing capacity, and uses this ratio as the processing cost coefficient.

[0086] For example, the unified control unit can collect the actual processing flow and equipment loss data of each processing unit in real time through the flow monitoring module and loss detection module in the connection device. After correction by the built-in algorithm, the corrected total actual processing capacity is obtained. Then, the preset processing capacity parameters stored in the control unit storage module are called, and the ratio of the two is obtained by division. This ratio is the processing cost coefficient, which can be used for subsequent processing cost accounting and process parameter optimization adjustment.

[0087] In some implementations, the unified control unit aims to minimize the processing cost coefficient by adjusting the processing parameters of multiple graded processing unit groups until the total actual processing capacity is within the processing capacity range. Then, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded processing unit groups for treatment.

[0088] In this implementation, the unified control unit can introduce the treatment cost coefficient as an optimization target during the process of adjusting the treatment parameters of the hierarchical treatment unit group. The adjustment scheme is screened with the minimum treatment cost coefficient as the direction until the total actual treatment capacity meets the treatment capacity range requirements, and then the new batch of industrial wastewater is controlled to be introduced for treatment.

[0089] It should be noted that when the unified control unit obtains the processing cost coefficient, it can pre-store the unit processing cost parameters corresponding to each hierarchical processing unit group, and calculate the total processing cost coefficient of the corresponding scheme by combining the hierarchical processing unit group combination put into operation in each adjustment scheme.

[0090] For example, each graded processing unit group has different energy consumption and reagent consumption, and the corresponding unit processing cost coefficients are preset to be 0.8, 1.2 and 0.9 respectively. The unified control unit reads the preset stored coefficients of each unit to provide a data basis for subsequent calculations.

[0091] It should be noted that when the unified control unit selects the adjustment schemes for the processing parameters of the hierarchical processing unit group with the goal of minimizing the processing cost coefficient, it can generate all feasible adjustment schemes that can make the corrected total actual processing capacity fall within the processing capacity range, and then calculate the total processing cost coefficient of each feasible scheme, and select the scheme with the minimum total processing cost coefficient.

[0092] For example, the processing capacity range is 27m 3 / h to 33m 3 / h, two feasible solutions can be generated. The total processing cost coefficient of the first solution is 2.1, and the total processing cost coefficient of the second solution is 1.7. The unified control unit selects the second solution as the target solution.

[0093] It should be noted that when the unified control unit adjusts the processing parameters of the hierarchical processing unit group based on the minimum processing cost coefficient target, it can send start / stop control signals to the hierarchical processing unit group corresponding to the selected target scheme, adjust the combination of units put into operation, and complete the adjustment of processing parameters.

[0094] For example, the selected target solution requires opening the No. 1 and No. 3 graded treatment unit groups and closing the No. 2 graded treatment unit group. The unified control unit sends an opening signal to the inlet and outlet switching valves of No. 1 and No. 3, and a closing signal to the inlet and outlet switching valve of No. 2 to complete the parameter adjustment.

[0095] It should be noted that when the unified control unit verifies whether the corrected total actual processing capacity conforms to the processing capacity range after the processing parameters are adjusted, it can re-accumulate the rated processing capacity of all the hierarchical processing unit groups that are in operation to obtain the corrected total actual processing capacity, and then compare and verify the corrected total actual processing capacity with the upper and lower limits of the processing capacity range.

[0096] This implementation method allows the unified control unit to adjust the processing parameters of multiple hierarchical processing unit groups. First, the ratio of the corrected total actual processing capacity to the preset processing capacity is determined as the processing cost coefficient. The parameters are iteratively adjusted with the goal of minimizing the processing cost coefficient. This can minimize the consumption of processing resources and reduce unnecessary energy consumption and reagent input while ensuring capacity adaptability. Only when the corrected total actual processing capacity falls within the processing capacity range and meets the requirement of minimizing the processing cost coefficient will a new batch of industrial wastewater be introduced. This can optimize operating costs and reduce the total expenditure on long-term operation and maintenance while ensuring the water volume and pollution load fluctuation requirements of the new batch of industrial wastewater are met.

[0097] This application embodiment also provides a graded treatment device for industrial wastewater, wherein the unified control unit is further used to obtain the adjustment energy consumption coefficient corresponding to the process of adjusting the total actual treatment capacity of multiple graded treatment unit groups to correct the total actual treatment capacity.

[0098] In this implementation, the unified control unit can first summarize the actual processing capacity of each of the multiple hierarchical processing unit groups in real time, obtain the total actual processing capacity by summing, and then adjust the total actual processing capacity to the corrected total actual processing capacity according to the preset correction rules. During this adjustment process, the energy consumption change information of each hierarchical processing unit group is collected synchronously, and the adjustment energy consumption coefficient corresponding to the adjustment process is calculated and obtained by combining the capacity data before and after the adjustment.

[0099] For example, the energy consumption coefficient can be adjusted by obtaining empirical value tables corresponding to the parameter adjustment process of each staged processing unit group.

[0100] In some implementations, the unified control unit aims to minimize the sum of the processing cost coefficient and the adjustment energy consumption coefficient. It adjusts the processing parameters of multiple graded processing unit groups until the total actual processing capacity is corrected to within the processing capacity range. Then, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded processing unit groups for treatment.

[0101] In this implementation, the unified control unit can simultaneously combine the treatment cost coefficient and the energy consumption adjustment coefficient, and use the minimum sum of the two as the optimization target to adjust the treatment parameters of multiple graded treatment unit groups. After confirming that the corrected total actual treatment capacity meets the treatment capacity range requirements, it controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

[0102] It should be noted that when the unified control unit obtains the adjustment energy consumption coefficient, it can pre-store the unit adjustment energy consumption coefficient generated by the switching of the operating state of each hierarchical processing unit group, and then accumulate the total adjustment energy consumption coefficient of the corresponding scheme according to the number of hierarchical processing unit groups whose state has changed in the current adjustment scheme.

[0103] For example, the unit adjustment energy consumption coefficient for each hierarchical processing unit group switching from standby to operation is preset to 0.2. A certain adjustment scheme requires the activation of two standby hierarchical processing unit groups. The unified control unit adds up the unit adjustment energy consumption coefficients of the two units, resulting in a total adjustment energy consumption coefficient of 0.4 for the scheme.

[0104] It should be noted that when the unified control unit calculates the sum of the processing cost coefficient and the adjustment energy consumption coefficient, it can read the total processing cost coefficient and the total adjustment energy consumption coefficient of the corresponding scheme respectively, and directly add the values ​​of the two coefficients to obtain the comprehensive evaluation coefficient of the scheme.

[0105] For example, the total processing cost coefficient of a certain adjustment scheme is 1.7 and the total adjustment energy consumption coefficient is 0.4. The unified control unit adds the two values ​​and calculates that the sum of the processing cost coefficient and the adjustment energy consumption coefficient of the scheme is 2.1.

[0106] It should be noted that when the unified control unit selects processing parameter adjustment schemes with the goal of minimizing the sum of the processing cost coefficient and the adjustment energy consumption coefficient, it can first generate all feasible schemes that satisfy the requirement that the corrected total actual processing capacity falls within the processing capacity range, then calculate the sum of coefficients for each feasible scheme, and select the scheme with the smallest sum of coefficients as the final execution scheme.

[0107] For example, three feasible adjustment schemes that meet the capacity requirements are generated, with coefficient sums of 2.1, 1.9, and 2.3 respectively. After comparing the three values, the unified control unit selects the scheme with a coefficient sum of 1.9 as the final execution scheme.

[0108] It should be noted that when the unified control unit adjusts the processing parameters of the hierarchical processing unit group based on the goal of minimizing the sum of the processing cost coefficient and the adjustment energy consumption coefficient, it can send control signals to all hierarchical processing unit groups in the final scheme that need to change their operating status, adjust the opening and closing status of the corresponding inlet and outlet switching valves, and complete the adjustment of the processing parameters.

[0109] This implementation allows the unified control unit to simultaneously acquire the adjustment energy consumption coefficient corresponding to the process of adjusting the total actual processing capacity to correct the total actual processing capacity when adjusting the processing cost coefficient and the adjustment energy consumption coefficient. With the minimum sum of the processing cost coefficient and the adjustment energy consumption coefficient as the optimization objective, it can take into account both steady-state operating costs and energy consumption during the adjustment process, achieving optimal control of the overall process cost. The adjustment energy consumption coefficient is incorporated into the decision logic of parameter adjustment, which can avoid the problem of excessive adjustment energy consumption caused by frequent and large-scale changes to processing parameters in pursuit of optimal steady-state processing costs, reduce unnecessary adjustment resource consumption, and further compress overall operation and maintenance costs.

[0110] With this implementation method, a new batch of industrial wastewater is only introduced when the total actual treatment capacity falls within the treatment capacity range and the sum of the two types of costs is the lowest. Under the premise of adapting to the fluctuation of wastewater volume and pollution load, the cost of the adjustment process and subsequent steady-state treatment can be taken into account, thereby improving the economic efficiency of the entire unit operation.

[0111] This application embodiment also provides a graded treatment device for industrial wastewater. The unified control unit is further used to determine multiple adjustment treatment unit groups among multiple graded treatment unit groups when the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient.

[0112] In this implementation, when the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient, multiple adjustment treatment units can be determined from multiple graded treatment unit groups to optimize the industrial wastewater treatment process through multiple adjustment treatment unit groups.

[0113] For example, multiple adjustment treatment unit groups can be determined among multiple graded treatment unit groups based on the values ​​of pollution fluctuation coefficients using an empirical value table.

[0114] In some implementations, the unified control unit aims to minimize the sum of the processing cost coefficient and the adjustment energy consumption coefficient. The unified control unit controls the synchronous adjustment of the processing parameters of multiple adjustment processing unit groups, so that the total actual processing capacity of the multiple graded processing unit groups is adjusted to the corrected total actual processing capacity. Once the corrected total actual processing capacity is within the processing capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded processing unit groups for treatment.

[0115] In this implementation, the unified control unit can combine the processing cost coefficient and the energy consumption adjustment coefficient, and take the minimum sum of the two as the optimization objective. At the same time, it can synchronously adjust the processing parameters of multiple graded processing unit groups that need to be adjusted, adjust the total actual processing capacity to the corrected total actual processing capacity, and control the introduction of a new batch of industrial wastewater for treatment after confirming that the corrected total actual processing capacity meets the requirements.

[0116] It should be noted that when the unified control unit adjusts the processing parameters of multiple graded processing unit groups simultaneously, it can send control signals to all graded processing unit groups that need to change their operating status at the same time, so that the inlet and outlet switching valves of multiple graded processing unit groups can open and close at the same time, thus shortening the overall time required for parameter adjustment.

[0117] For example, the selected synchronous adjustment scheme requires starting two standby graded treatment unit groups, No. 1 and No. 3, and shutting down the running graded treatment unit group, No. 2. The unified control unit simultaneously sends corresponding control signals to the inlet and outlet water switching valves of the three graded treatment unit groups, and the three switching valves simultaneously complete the opening and closing actions to achieve synchronous adjustment.

[0118] It should be noted that when the unified control unit calculates the sum of the processing cost coefficient and the adjustment energy consumption coefficient, it can obtain the total processing cost coefficient and the total adjustment energy consumption coefficient of the corresponding synchronous adjustment scheme respectively, and directly add the values ​​of the two coefficients to obtain the comprehensive evaluation coefficient of the scheme.

[0119] For example, the total processing cost coefficient of a certain synchronization adjustment scheme is 1.6 and the total adjustment energy consumption coefficient is 0.3. The unified control unit adds the two values ​​and calculates that the sum of the processing cost coefficient and the adjustment energy consumption coefficient of the scheme is 1.9.

[0120] It should be noted that when the unified control unit selects a synchronous adjustment scheme for processing parameters with the goal of minimizing the sum of the processing cost coefficient and the adjustment energy consumption coefficient, it can first generate all feasible synchronous adjustment schemes that satisfy the requirement that the corrected total actual processing capacity falls within the processing capacity range, then calculate the sum of coefficients for each feasible scheme, and select the scheme with the smallest sum of coefficients as the final synchronous adjustment scheme to be executed.

[0121] For example, three feasible synchronization adjustment schemes that meet the capacity requirements are generated, with coefficient sums of 2.0, 1.9, and 2.2 respectively. After comparing the three values, the unified control unit selects the scheme with a coefficient sum of 1.9 as the final synchronization adjustment scheme to be executed.

[0122] It should be noted that when the unified control unit calculates and corrects the total actual processing capacity after synchronously adjusting the processing parameters, it can read the pre-stored rated processing capacity of all currently running hierarchical processing unit groups, sum all the rated capacities, and obtain the corrected total actual processing capacity.

[0123] For example, the hierarchical processing unit group that is in operation after synchronous adjustment includes units 1, 3, and 5, each with a rated processing capacity of 10m³. 3 / h, 10m 3 / h、8m 3 / h, the unified control unit accumulates three values, and the calculated corrected total actual processing capacity is 28m. 3 / h.

[0124] It should be noted that when the unified control unit verifies whether the total actual processing capacity is within the processing capacity range, it can compare the calculated total actual processing capacity with the lower limit and upper limit of the processing capacity range, and determine whether it meets the requirements based on the comparison results.

[0125] For example, the processing capacity range is 27m 3 / h to 33m 3 / h, the calculated total actual processing capacity after correction is 28m 3 / h, after comparison by the unified control unit, it is confirmed that 28 is greater than 27 and less than 33, and it is determined that the corrected total actual treatment capacity meets the requirements. Subsequently, the control unit sends a new batch of industrial wastewater to multiple graded treatment unit groups for treatment.

[0126] Through this implementation, when the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient, the unified control unit first determines multiple adjustment treatment unit groups from multiple graded treatment unit groups, and synchronously adjusts the treatment parameters of these unit groups. This allows for rapid correction of the total actual treatment capacity when pollution load fluctuates significantly, shortening the time required for parameter adjustment and improving response efficiency. By selecting only multiple adjustment treatment unit groups for synchronous parameter adjustment, there is no need to change the operating status of all graded treatment unit groups, which reduces unnecessary unit adjustment operations, minimizes interference with stable operating units during the adjustment process, and ensures the stability of the overall treatment process.

[0127] By implementing this method, when adjusting the parameters of multiple adjustment treatment unit groups, the goal is still to minimize the sum of the treatment cost coefficient and the adjustment energy consumption coefficient. This can quickly adapt to the treatment needs of highly polluted and fluctuating wastewater while ensuring the optimal cost during the adjustment phase and subsequent operation phases, thereby further improving operational economy.

[0128] This application embodiment also provides a graded treatment device for industrial wastewater. The unified control unit is further used to control and synchronously adjust the treatment parameters of multiple adjustment treatment unit groups when the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient, with the goal of minimizing the sum of the treatment cost coefficient and the adjustment energy consumption coefficient. This adjusts the total actual treatment capacity of the multiple graded treatment unit groups to a corrected total actual treatment capacity until the corrected total actual treatment capacity is within the treatment capacity range. Then, the water quality optimization coefficient of the multiple adjustment treatment unit groups is detected by the water quality pollutant concentration sensors of the multiple adjustment treatment unit groups. The water quality optimization coefficient represents the degree of water quality optimization before and after the water quality treatment by the adjustment treatment unit groups.

[0129] In this implementation, when the unified control unit detects that the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient, a targeted parameter adjustment mechanism can be activated. The core objective is to minimize the sum of the processing cost coefficient and the adjustment energy consumption coefficient, taking into account both the processing effect and the operational economy, and avoiding cost waste or excessive energy consumption caused by over-adjustment.

[0130] In this implementation, the unified control unit can send parameter adjustment instructions to multiple adjustment processing unit groups synchronously through a preset collaborative control algorithm, so as to realize the synchronous linkage adjustment of the processing parameters of all adjustment processing unit groups, ensure that the adjustment actions of each unit group are coordinated and consistent, and avoid the imbalance of total processing capacity caused by the individual adjustment of a single unit group.

[0131] It should be noted that the treatment parameters of the treatment unit group can include key parameters that are directly related to the treatment effect of industrial wastewater, such as reaction time, reagent dosage, aeration intensity, and filtration rate. The adjustment of these parameters should be adapted according to the actual situation of pollution fluctuations to ensure that the adjustment is targeted and effective.

[0132] For example, when the concentration of pollutants in industrial wastewater rises sharply, causing the pollution fluctuation coefficient to exceed the standard, the unified control unit can simultaneously adjust the dosage of reagents in multiple adjustment treatment unit groups, appropriately increase the proportion of degradation reagents, and fine-tune the aeration intensity to ensure that pollutants can fully react and degrade, thereby achieving a reasonable adjustment of the total actual treatment capacity.

[0133] In this implementation, the total actual processing capacity of multiple hierarchical processing unit groups will change dynamically as the parameters of the processing unit groups are adjusted. The unified control unit will monitor the changes in the total actual processing capacity in real time and continuously adjust the parameters until the total actual processing capacity reaches the corrected total actual processing capacity, and the corrected total actual processing capacity falls within the preset processing capacity range.

[0134] In this implementation, once the total actual treatment capacity stabilizes within the treatment capacity range, the unified control unit will trigger a detection command. Through the water pollutant concentration sensors equipped in each of the multiple adjustment treatment unit groups, the water quality optimization coefficient of each adjustment treatment unit group will be collected and detected in real time, providing data support for the subsequent evaluation of treatment effect and fine-tuning of parameters.

[0135] It should be noted that the water pollutant concentration sensor can collect pollutant concentration data at the inlet and outlet of the adjustment treatment unit group in real time, and calculate the water quality optimization coefficient by comparing the data. Its installation position can be set at the end of the outlet of the adjustment treatment unit group to ensure that the collected data can truly reflect the water quality status after treatment.

[0136] In this implementation, the water quality optimization coefficient is the core parameter for measuring the treatment efficiency of the adjustment treatment unit group. Its core function is to characterize the degree of optimization of the wastewater quality before and after the adjustment treatment unit group treats the industrial wastewater. The value of this coefficient is positively correlated with the treatment effect and can serve as an important reference for subsequent adjustment parameters of the unified control unit.

[0137] In some implementations, the unified control unit is also used to obtain preset water quality optimization coefficients corresponding to multiple adjustment treatment unit groups. When the water quality optimization coefficient of each adjustment treatment unit group is greater than or equal to the preset water quality optimization coefficient corresponding to each adjustment treatment unit group, the unified control unit controls the introduction of a new batch of industrial wastewater for treatment into the multiple graded treatment unit groups.

[0138] In this implementation, preset water quality optimization coefficients corresponding to multiple adjustment and treatment unit groups can be obtained in advance as a benchmark for judging water quality compliance. Only after the judgment conditions are met can a new batch of industrial wastewater be allowed to flow in.

[0139] It should be noted that when the unified control unit obtains the preset water quality optimization coefficients corresponding to each adjustment and treatment unit group, it can read the preset values ​​corresponding to each graded treatment unit group from the pre-stored parameter configuration table, or it can receive preset parameters input by the operator on site.

[0140] For example, there are three adjustment and treatment unit groups, and the preset water quality optimization coefficients are stored in the configuration table of the unified control unit, which are 0.85, 0.8 and 0.9 respectively. The unified control unit directly reads the preset water quality optimization coefficients corresponding to the three adjustment and treatment unit groups from the configuration table in sequence.

[0141] In this implementation, after the parameter adjustment is completed, the unified control unit can compare the actual water quality optimization coefficient with the preset water quality optimization coefficient. After confirming that the actual coefficients of all adjusted treatment unit groups meet the requirements, it controls the introduction of a new batch of industrial wastewater for treatment.

[0142] It should be noted that when the unified control unit collects the actual water quality optimization coefficients of each adjustment treatment unit group, it can obtain the influent pollutant concentration and effluent pollutant concentration respectively by adjusting the water pollutant concentration sensors at the inlet and outlet of the treatment unit group, and then calculate the pollutant removal rate as the actual water quality optimization coefficient.

[0143] For example, the influent COD concentration of a certain adjustment treatment unit group is 500 mg / L and the effluent COD concentration is 50 mg / L. The unified control unit calculates that the pollutant removal rate is 0.9, and this value is used as the actual water quality optimization coefficient of the adjustment treatment unit group.

[0144] It should be noted that when the unified control unit compares the actual water quality optimization coefficient and the corresponding preset water quality optimization coefficient of each adjustment and treatment unit group, it can compare the actual coefficient and the corresponding preset coefficient of each adjustment and treatment unit group one by one, and record the adjustment and treatment unit groups that do not meet the requirements.

[0145] For example, the actual water quality optimization coefficients of the three adjustment treatment unit groups are 0.9, 0.82, and 0.88, respectively, and the corresponding preset water quality optimization coefficients are 0.85, 0.8, and 0.9, respectively. The unified control unit checks each one and confirms that the actual coefficients of the first two adjustment treatment unit groups are greater than or equal to the preset values, while the actual coefficient of the third group is less than the preset value, and it is determined that the condition is not met. If all actual coefficients meet the requirements, then the control unit will control the flow of a new batch of industrial wastewater for treatment.

[0146] In some implementations, the unified control unit is also used to perform secondary treatment parameter optimization on the first adjustment treatment unit group when the first water quality optimization coefficient of any first adjustment treatment unit group in the multiple adjustment treatment unit groups is less than the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group, until the first water quality optimization coefficient of the first adjustment treatment unit group is greater than or equal to the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group, and then the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

[0147] In this implementation, after the initial comparison of water quality optimization coefficients is completed, if it is found that any one of the first adjustment treatment unit groups has a first water quality optimization coefficient that is less than the corresponding first preset water quality optimization coefficient, the secondary treatment parameters can be optimized for the first adjustment treatment unit group that does not meet the requirements until the first water quality optimization coefficient meets the requirements, and then the new batch of industrial wastewater is controlled to be introduced for treatment.

[0148] It should be noted that when the unified control unit identifies that the first water quality optimization coefficient of the first adjustment treatment unit group is less than the corresponding first preset water quality optimization coefficient, it can compare the actual coefficient and the preset coefficient of each adjustment treatment unit group one by one, mark all adjustment treatment unit groups whose actual coefficient is less than the preset coefficient, and identify them as the first adjustment treatment unit group that needs secondary optimization.

[0149] For example, there are three adjustment and treatment unit groups. The first water quality optimization coefficient of the third adjustment and treatment unit group is 0.88, which corresponds to the first preset water quality optimization coefficient of 0.9. After comparison by the unified control unit, it is confirmed that 0.88 is less than 0.9, and the adjustment and treatment unit group is identified as the first adjustment and treatment unit group that needs secondary optimization.

[0150] It should be noted that the process of optimizing the secondary treatment parameters of the first adjustment treatment unit group can be carried out by adjusting the operating parameters of the first adjustment treatment unit group according to the deviation of the first water quality optimization coefficient, reducing the influent flow rate of the unit or increasing the aeration and chemical dosage to improve the water quality treatment effect.

[0151] For example, if the first water quality optimization coefficient of the first adjustment treatment unit group is 0.02 lower than the preset value, the unified control unit controls the influent flow rate of the unit to be reduced by 10%, while increasing the aeration rate of the secondary biological treatment unit by 10%, thus completing the optimization and adjustment of the secondary treatment parameters.

[0152] It should be noted that when the unified control unit detects the first water quality optimization coefficient of the first adjusted treatment unit group after the secondary treatment parameters are optimized, it can re-collect the pollutant concentration of the influent and effluent through the water pollutant concentration sensors at the inlet and outlet of the unit, recalculate the pollutant removal rate, and obtain the updated first water quality optimization coefficient.

[0153] For example, after secondary optimization, the influent COD concentration of the first adjustment treatment unit group is 450 mg / L and the effluent COD concentration is 45 mg / L. The unified control unit calculates that the pollutant removal rate is 0.9. This value is updated as the first water quality optimization coefficient of the first adjustment treatment unit group. After confirming that the coefficient is greater than or equal to the first preset water quality optimization coefficient of 0.9, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment.

[0154] In this implementation, after the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient and the treatment parameters have been adjusted, the corresponding water quality optimization coefficient is detected by water pollutant concentration sensors in multiple adjusted treatment unit groups. By comparing the water quality optimization coefficient of the adjusted treatment unit group with the corresponding preset water quality optimization coefficient, the actual treatment capacity of the adjusted unit can be verified, avoiding the problem of substandard treatment effect after parameter adjustment. When the first water quality optimization coefficient of any first adjusted treatment unit group is less than the corresponding first preset water quality optimization coefficient, a second treatment parameter optimization is performed on the first adjusted treatment unit group. Only the substandard unit is adjusted, without changing the parameters of other normal units, which can reduce unnecessary adjustment costs while ensuring the treatment effect.

[0155] With this implementation method, a new batch of industrial wastewater is only introduced when the water quality optimization coefficients of all adjusted treatment unit groups meet the corresponding preset requirements and the total actual treatment capacity is within the treatment capacity range. This can simultaneously achieve optimal cost and treatment effect under high pollution fluctuation scenarios, further improving the stability of effluent water quality.

[0156] This application embodiment also provides a graded treatment device for industrial wastewater, wherein the unified control unit is further used to determine the first adjustment treatment unit group among multiple graded treatment unit groups when the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient.

[0157] In this implementation, when the pollution fluctuation coefficient of industrial wastewater is less than the preset pollution fluctuation coefficient, the first adjustment treatment unit group that needs to adjust parameters can be selected from multiple existing graded treatment unit groups.

[0158] For example, if the preset pollution fluctuation coefficient is 0.15 and the actual pollution fluctuation coefficient of the new batch of industrial wastewater is 0.1, the unified control unit will compare and confirm that 0.1 is less than 0.15, thus meeting the triggering condition and initiating the determination process of the first adjustment treatment unit group.

[0159] It should be noted that when determining the first adjustment processing unit group, the hierarchical processing unit group that is currently in standby mode and has the lowest unit processing cost coefficient can be selected and identified as the first adjustment processing unit group that needs to be adjusted.

[0160] For example, there are currently two standby hierarchical processing unit groups with unit processing cost coefficients of 0.8 and 0.9, respectively. The unified control unit compares them and selects the one with the lower unit processing cost coefficient, which is then designated as the first adjustment processing unit group.

[0161] In some implementations, the unified control unit controls and adjusts the processing parameters of the first adjustment processing unit group so that the total actual processing capacity of multiple graded processing unit groups is adjusted to the corrected total actual processing capacity. Once the corrected total actual processing capacity is within the processing capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded processing unit groups for treatment.

[0162] In this implementation, after determining the first adjustment processing unit group, the unified control unit can adjust the processing parameters of the first adjustment processing unit group, adjust the original total actual processing capacity to the corrected total actual processing capacity, and after confirming that the corrected total actual processing capacity meets the processing capacity range requirements, control the introduction of a new batch of industrial wastewater for treatment.

[0163] It should be noted that when the unified control unit adjusts the processing parameters of the first adjustment processing unit group, it can adjust the operating status or influent flow parameters of the first adjustment processing unit group according to the deviation between the total actual processing capacity and the processing capacity range, thereby completing the capacity adjustment.

[0164] For example, if the original total actual processing capacity is lower than the lower limit of the processing capacity range, the first adjustment processing unit group is currently in standby mode. The unified control unit sends an opening signal to the inlet switching valve and outlet switching valve of the first adjustment processing unit group to switch the first adjustment processing unit group to the running state and complete the adjustment of processing parameters.

[0165] It should be noted that after adjusting the processing parameters of the first adjustment processing unit group, when the unified control unit calculates the corrected total actual processing capacity of multiple hierarchical processing unit groups, it can read the pre-stored rated processing capacity of all currently running hierarchical processing unit groups, sum all the rated capacities, and obtain the corrected total actual processing capacity.

[0166] With this implementation, when the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient, the unified control unit only needs to select a single first adjustment processing unit group from multiple hierarchical processing unit groups to adjust the parameters. There is no need to mobilize multiple groups of units, which simplifies the adjustment process in low pollution fluctuation scenarios and significantly shortens the time required for capacity correction. The total actual processing capacity can be corrected by adjusting only the processing parameters of the first adjustment processing unit group, while the other hierarchical processing unit groups can maintain their original stable operating state, reducing the interference of parameter adjustment on the overall processing process and further improving the operational stability in low fluctuation scenarios.

[0167] This implementation method allows for the adjustment of only a single set of unit parameters in low-pollution fluctuation scenarios, reducing energy consumption during the adjustment process. Combined with existing cost optimization logic, it further reduces the cost of the adjustment process while adapting to the needs of small-amplitude pollution fluctuations, thereby improving overall operational economy.

[0168] This application embodiment also provides a graded treatment device for industrial wastewater. The unified control unit is further used to control and adjust the treatment parameters of the first adjustment treatment unit group when the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient, so that the total actual treatment capacity of multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range. Then, the first water quality optimization coefficient of the first adjustment treatment unit group is detected by the water quality pollutant concentration sensor of the first adjustment treatment unit group. The first water quality optimization coefficient represents the degree of water quality optimization before and after the water quality treatment by the first adjustment treatment unit group. The following is a detailed description.

[0169] In this implementation, the unified control unit is also used to adjust the processing parameters of the first adjustment processing unit group when the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient, adjust the total actual processing capacity to the corrected total actual processing capacity, and trigger the detection process of the first water quality optimization coefficient after confirming that the corrected total actual processing capacity falls within the processing capacity range.

[0170] It should be noted that the first water quality optimization coefficient can characterize the degree of water quality optimization before and after the first adjustment treatment unit group is treated. It can generally be calculated by the ratio of the difference in pollutant concentration before and after treatment to the pollutant concentration before treatment. The larger the value, the higher the degree of water quality optimization.

[0171] For example, the first water quality optimization coefficient can be characterized by the pollutant removal rate, which is calculated as (influent pollutant concentration - effluent pollutant concentration) / influent pollutant concentration, directly corresponding to the degree of water quality optimization of the first adjustment treatment unit group.

[0172] In this implementation, after the total actual processing capacity meets the range requirements, the unified control unit can call the water pollutant concentration sensor built into the first adjustment processing unit group to collect pollutant concentration data at the inlet and outlet ends respectively, and calculate the first water quality optimization coefficient of the first adjustment processing unit group.

[0173] It should be noted that water quality pollutant concentration sensors are pre-installed at both the inlet and outlet of the first adjustment and treatment unit group. The unified control unit can read the pollutant concentration detection data output by the two sensors respectively, and substitute them into the calculation formula to obtain the first water quality optimization coefficient.

[0174] For example, the water pollutant concentration sensor at the inlet of the first adjustment and treatment unit group detects an influent COD concentration of 400 mg / L and an effluent COD concentration at the outlet of the first adjustment and treatment unit group detects an effluent COD concentration of 40 mg / L. The unified control unit substitutes the data into the formula and calculates (400-40) / 400=0.9. 0.9 is then determined as the first water quality optimization coefficient of the first adjustment and treatment unit group.

[0175] In some implementations, the unified control unit is also used to obtain a first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group. When the first water quality optimization parameter is greater than or equal to the first preset water quality optimization coefficient, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment. When the first water quality optimization parameter is less than the first preset water quality optimization coefficient, the treatment parameters of the upper-level treatment unit of the first adjustment treatment unit group are optimized, and the upper-level water quality optimization coefficient of the upper-level adjustment treatment unit group is detected by the water quality pollutant concentration sensor of the upper-level adjustment treatment unit group. The upper-level water quality optimization coefficient characterizes the degree of water quality optimization before and after water quality treatment by the upper-level adjustment treatment unit group.

[0176] In this implementation, the first preset water quality optimization coefficient corresponding to the first adjustment and processing unit group can be obtained in advance as the qualification judgment benchmark of the first water quality optimization parameter, and then different control logics can be executed according to the comparison results.

[0177] It should be noted that when the unified control unit obtains the first preset water quality optimization coefficient corresponding to the first adjustment and treatment unit group, it can read the preset value of the corresponding graded treatment unit group from the pre-stored parameter configuration table, or it can receive the parameters input by the operator on site.

[0178] For example, the first preset water quality optimization coefficient of the first adjustment and treatment unit group is pre-stored in the configuration table of the unified control unit, with a value of 0.9. The unified control unit directly reads this value from the configuration table to complete the acquisition process.

[0179] In this implementation, the unified control unit can collect the first water quality optimization parameters of the first adjustment and processing unit group, compare them with the first preset water quality optimization coefficient, and execute the corresponding control action according to the comparison result.

[0180] It should be noted that when the unified control unit collects the first water quality optimization parameters of the first adjustment and treatment unit group, it can obtain the detection data through the water pollutant concentration sensors at the inlet and outlet of the first adjustment and treatment unit group, and then calculate the first water quality optimization parameters through the formula.

[0181] For example, the COD concentration at the inlet of the first adjustment treatment unit group is 400 mg / L, and the COD concentration at the outlet is 40 mg / L. The unified control unit calculates that the pollutant removal rate is 0.9, and this value is used as the first water quality optimization parameter.

[0182] In this implementation, after the parameter acquisition is completed, the unified control unit can compare the first water quality optimization parameter with the first preset water quality optimization coefficient, and determine whether the water intake conditions are met based on the comparison result.

[0183] It should be noted that when the unified control unit compares the first water quality optimization parameter and the first preset water quality optimization coefficient, it directly compares the two values ​​to determine whether the first water quality optimization parameter is greater than or equal to the first preset water quality optimization coefficient.

[0184] For example, if the first water quality optimization parameter is 0.9 and the first preset water quality optimization coefficient is 0.88, the unified control unit will compare and confirm that 0.9 is greater than 0.88, and thus the qualified condition is met.

[0185] In this implementation, when the first water quality optimization parameter is greater than or equal to the first preset water quality optimization coefficient, the unified control unit can send an opening signal to the inlet switching valve of all the graded treatment unit groups to be operated, and control the introduction of a new batch of industrial wastewater for treatment.

[0186] In this implementation, when the first water quality optimization parameter is less than the first preset water quality optimization coefficient, the processing parameters of the upper-level processing unit of the first adjustment processing unit group can be optimized. After optimization, the upper-level water quality optimization coefficient is detected by the water pollutant concentration sensor of the upper-level adjustment processing unit group.

[0187] It should be noted that the upstream treatment unit of the first adjustment treatment unit group refers to the treatment unit located upstream of the first adjustment treatment unit group in the same hierarchical treatment unit group. Optimizing the treatment parameters of the upstream treatment unit can improve the influent water quality, thereby improving the effluent water quality of the first adjustment treatment unit group.

[0188] For example, the first adjustment treatment unit group is a three-level deep treatment unit, and its superior treatment unit is a two-level biochemical treatment unit. The unified control unit controls the increase of the aeration volume of the two-level biochemical treatment unit to improve the organic matter removal effect and complete the parameter optimization of the superior treatment unit.

[0189] It should be noted that when detecting the upper-level water quality optimization coefficient, the concentration data can be collected by the water pollutant concentration sensors at the inlet and outlet of the upper-level adjustment treatment unit group, and then substituted into the formula to calculate the upper-level water quality optimization coefficient. The upper-level water quality optimization coefficient represents the degree of water quality optimization before and after the water quality treatment by the upper-level adjustment treatment unit group.

[0190] For example, if the COD concentration at the inlet of the upper-level treatment unit is 500 mg / L and the COD concentration at the outlet is 50 mg / L, substituting these values ​​into the formula yields (500-50) / 500=0.9. This value is then determined as the upper-level water quality optimization coefficient.

[0191] In some implementations, the unified control unit is also used to obtain the preset water quality optimization coefficient corresponding to the upper-level adjustment treatment unit group. When the upper-level water quality optimization parameter is greater than or equal to the preset water quality optimization coefficient, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment.

[0192] In this implementation, after completing the optimization of the parameters of the upper-level adjustment and treatment unit group and the detection of the upper-level water quality optimization coefficient, the upper-level preset water quality optimization coefficient corresponding to the upper-level adjustment and treatment unit group can be obtained. After the comparison is qualified, the new batch of industrial wastewater is controlled to be introduced for treatment.

[0193] It should be noted that when the unified control unit obtains the preset water quality optimization coefficient corresponding to the upper-level adjustment and treatment unit group, it can either match and read the preset value of the corresponding upper-level adjustment and treatment unit group from the pre-stored parameter configuration table, or receive the parameter value entered on-site by the operator.

[0194] For example, if the upper-level adjustment treatment unit group is a secondary biochemical treatment unit, the corresponding upper-level preset water quality optimization coefficient is pre-stored in the configuration table of the unified control unit, with a value of 0.85. The unified control unit directly reads this value from the configuration table to complete the acquisition process.

[0195] It should be noted that when the unified control unit collects the water quality optimization parameters of the upper-level adjustment and treatment unit group, it can call the water pollutant concentration sensors installed at the inlet and outlet of the upper-level adjustment and treatment unit group to collect the target pollutant concentrations of the inlet and outlet water respectively, and then calculate the upper-level water quality optimization parameters through the pollutant removal rate formula.

[0196] For example, the COD concentration detection value at the inlet of the upper-level adjustment treatment unit group is 500 mg / L, and the COD concentration detection value at the outlet is 60 mg / L. The unified control unit substitutes the value into the formula (500-60) / 500 to calculate the value 0.88, and uses this value as the upper-level water quality optimization parameter.

[0197] It should be noted that when the unified control unit compares the superior water quality optimization parameters and the superior preset water quality optimization coefficient, it can directly compare the two values ​​to determine whether the superior water quality optimization parameters meet the condition of being greater than or equal to the superior preset water quality optimization coefficient.

[0198] For example, if the superior water quality optimization parameter is 0.88 and the superior preset water quality optimization coefficient is 0.85, the unified control unit will compare and confirm that 0.88 is greater than 0.85, and thus determine that the superior water quality optimization parameter meets the qualification requirements.

[0199] It should be noted that when the superior water quality optimization parameter is greater than or equal to the superior preset water quality optimization coefficient, the unified control unit can send an opening signal to the inlet switching valve of all the tiered treatment unit groups that are in operation, and the new batch of industrial wastewater can enter each level of treatment unit along the inlet pipeline to start the treatment process.

[0200] For example, once the upper-level water quality optimization parameter of 0.88 meets the requirements, the unified control unit sends an opening command to the inlet switching valves of all the graded treatment unit groups that are in operation. After receiving the command, all the inlet switching valves open, and the new batch of industrial wastewater enters each graded treatment unit group and completes the treatment operation in the order of primary pretreatment unit, secondary biochemical treatment unit, and tertiary deep treatment unit.

[0201] With this implementation, after the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient and the parameters of the first adjustment treatment unit group are adjusted, the first water quality optimization coefficient is detected by the water pollutant concentration sensor of the first adjustment treatment unit group. By comparing it with the first preset water quality optimization coefficient, the treatment effect of a single group after adjustment can be quickly verified, avoiding the problem of insufficient treatment capacity in low fluctuation scenarios. When the first water quality optimization coefficient is less than the first preset water quality optimization coefficient, the parameters of the upper-level treatment unit of the first adjustment treatment unit group are optimized in a targeted manner without changing the operating status of other units. This can quickly make up for the shortcomings in treatment capacity, shorten the time for optimization and adjustment, and reduce interference with the overall process.

[0202] With this implementation method, a new batch of industrial wastewater is only introduced when the total actual treatment capacity meets the requirements and the corresponding water quality optimization coefficients all meet the standards. This can balance adjustment efficiency, operating costs and treatment effects in low pollution fluctuation scenarios, and further improve adaptability and effluent stability under different fluctuation scenarios.

[0203] Figure 2 A schematic flowchart of the first wastewater treatment control method provided in the embodiments of this application is shown below. Figure 2 As shown in the embodiments of this application, a wastewater treatment control method is also provided, which adopts the graded treatment device for industrial wastewater described in any of the above claims. The method further includes steps S110 to S120, which are described in detail below.

[0204] S110. Obtain the total actual treatment capacity of the currently configured multiple graded treatment unit groups. Before introducing a new batch of industrial wastewater into the multiple graded treatment unit groups, obtain the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater treatment, and determine the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient).

[0205] In this implementation, during the preliminary preparation stage of starting a new batch of industrial wastewater treatment, the total actual treatment capacity of the currently configured multiple graded treatment unit groups can be obtained first, providing basic data for subsequent capacity matching.

[0206] For example, there are four hierarchical processing unit groups, three of which are operational, with a rated processing capacity of 10m³ / s. 3 / h, 10m 3 / h、8m 3 / h, summing the three rated capacities gives a total actual processing capacity of 28m³ / h. 3 / h.

[0207] In this implementation, before introducing a new batch of industrial wastewater into multiple graded treatment unit groups, the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater can be obtained respectively, and then the treatment capacity range can be calculated and determined based on the two parameters.

[0208] For example, a manufacturing company enters a planned treatment volume of 30m³ for a new batch of industrial wastewater into the upper-level production scheduling system. 3 / h, the unified control unit reads this value from the upper-level production scheduling system and determines it as the preset processing capacity.

[0209] For example, a new batch of industrial wastewater comes from a continuously and stably producing chemical production line. The preset allowable deviation ratio is 10%. The unified control unit reads the corresponding pre-stored capacity fluctuation coefficient of 0.1 and completes the acquisition process.

[0210] For example, the preset processing capacity is 30m. 3 / h, with a capacity fluctuation coefficient of 0.1, the lower limit of the calculation is 30×(1-0.1)=27m. 3 / h, the upper limit is calculated to be 30×(1+0.1)=33m 3 / h, ultimately determining the processing capacity range to be 27m 3 / h to 33m 3 / h.

[0211] S120. When the total actual treatment capacity is within the treatment capacity range, a new batch of industrial wastewater is introduced into the multiple graded treatment unit groups for treatment. When the total actual treatment capacity is not within the treatment capacity range, the treatment parameters of the multiple graded treatment unit groups are adjusted so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then a new batch of industrial wastewater is introduced into the multiple graded treatment unit groups for treatment.

[0212] In this implementation, different control logics can be executed based on the matching results between the total actual treatment capacity and the treatment capacity range. After confirming the match, a new batch of industrial wastewater is introduced for treatment. If there is no match, the parameters are adjusted until the requirements are met before water is introduced.

[0213] For example, the processing capacity range determined by combining the capacity fluctuation coefficient is 27m. 3 / h to 33m 3 / h, the calculated total actual processing capacity is 30m³. 3 / h, after comparison, it was confirmed that 30 is greater than 27 and less than 33, and the total actual processing capacity was determined to be within the processing capacity range.

[0214] For example, the total actual processing capacity is 25m. 3 / h, below the lower limit of the processing capacity range of 27m 3 / h, with a pollution fluctuation coefficient of 0.1, the unified control unit selects a standby graded treatment unit group with the lowest unit treatment cost, opens the inlet and outlet water switching valve of the unit, and puts it into operation to complete parameter adjustment.

[0215] For example, before the adjustment, the total rated capacity of the two operating hierarchical processing unit groups was 25m³. 3 / h, during adjustment, add a new rated capacity of 5m³. 3 The standby unit at / h, combined with the unified control unit, yields a corrected total actual processing capacity of 30m. 3 / h.

[0216] For example, the treatment capacity range including the pollution fluctuation coefficient is 27m³. 3 / h to 33m 3 / h, the calculated total actual processing capacity after correction is 30m 3 / h, after comparison, it was confirmed that 30 is greater than 27 and less than 33, and it was determined that the corrected total actual processing capacity meets the requirements.

[0217] For example, the total actual processing capacity is corrected to 30m. 3 / h falls within the target range of 27m 3 / h to 33m 3 Within / h, the unified control unit sends an opening command to the inlet switching valves of the three operating graded treatment unit groups. After all the inlet switching valves are opened, the new batch of industrial wastewater enters the primary pretreatment unit, the secondary biochemical treatment unit, and the tertiary deep treatment unit in sequence to complete the treatment operation.

[0218] This implementation method obtains the total actual treatment capacity of multiple graded treatment unit groups before introducing a new batch of industrial wastewater. Combined with the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater, the treatment capacity range is determined. The parameters are adjusted according to the matching of the total actual treatment capacity and the range, which can quickly adapt to the wastewater volume requirements of different batches and avoid insufficient or redundant treatment capacity.

[0219] Figure 3 This is a schematic flowchart of the second wastewater treatment and control method provided in the embodiments of this application, as shown below. Figure 3 As shown, in some implementations, the above method also includes S210 to S220, which will be described in detail below.

[0220] S210. Before introducing a new batch of industrial wastewater into multiple graded treatment unit groups, obtain the pollution fluctuation coefficient of the new batch of industrial wastewater treatment, and determine the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient - pollution fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient, pollution fluctuation coefficient).

[0221] In this implementation, before introducing a new batch of industrial wastewater for treatment, the pollution fluctuation coefficient of the new batch of industrial wastewater can be obtained simultaneously. Combined with the capacity fluctuation coefficient, a wider treatment capacity range can be calculated to adapt to the changes in treatment demand caused by the fluctuation of wastewater pollution characteristics.

[0222] For example, a new batch of industrial wastewater comes from an intermittent chemical synthesis process, where pollutant concentrations fluctuate significantly. The pre-stored corresponding pollution fluctuation coefficient is 0.05, and the unified control unit directly reads this value to complete the acquisition process.

[0223] For example, the preset processing capacity is 30m. 3 / h, capacity fluctuation coefficient is 0.1, pollution fluctuation coefficient is 0.05, so we can calculate 1 - 0.1 - 0.05 = 0.85, then calculate 30 × 0.85 = 25.5m 3 / h, the lower limit of the processing capacity range is 25.5m³ / h. 3 / h.

[0224] For example, the preset processing capacity is 30m 3 / h, capacity fluctuation coefficient is 0.1, pollution fluctuation coefficient is 0.05, so we can calculate 1 + 0.1 + 0.05 = 1.15, then calculate 30 × 1.15 = 34.5m 3 / h, resulting in an upper limit of the processing capacity range of 34.5m. 3 / h.

[0225] For example, the calculated lower limit of the processing capacity range is 25.5m. 3 / h, with an upper limit of 34.5m 3 / h, the final processing capacity range was determined to be 25.5m³ / h. 3 / h to 34.5m 3 / h completes the process of determining the processing capacity range.

[0226] S220. When the total actual treatment capacity is within the treatment capacity range, a new batch of industrial wastewater is introduced into the multiple graded treatment unit groups for treatment. When the total actual treatment capacity is not within the treatment capacity range, the treatment parameters of the multiple graded treatment unit groups are adjusted so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then a new batch of industrial wastewater is introduced into the multiple graded treatment unit groups for treatment.

[0227] In this implementation, different control logics can be executed based on the matching results between the total actual treatment capacity and the treatment capacity range determined by the pollution fluctuation coefficient. If they match, water is directly introduced; if they do not match, the parameters are adjusted until the requirements are met before a new batch of industrial wastewater is introduced.

[0228] For example, the processing capacity range obtained by combining the two coefficients is 25.5m. 3 / h to 34.5m 3 / h, the calculated total actual processing capacity is 30m³. 3 / h, after comparison, it was confirmed that 30 is greater than 25.5 and less than 34.5, and the total actual treatment capacity was determined to be within the treatment capacity range, so the new batch of industrial wastewater was directly controlled to flow in.

[0229] For example, the total actual processing capacity is 24m. 3 / h, lower than the lower limit of the processing capacity range of 25.5m 3 / h, the unified control unit selects the graded treatment unit group with the lowest unit treatment cost coefficient in the standby state, sends an opening signal to the inlet and outlet switching valves of the unit, puts the unit into operation, and completes the adjustment of treatment parameters.

[0230] For example, before the adjustment, the total rated capacity of the two operating hierarchical processing unit groups was 24m³. 3 / h, during adjustment, add a new rated capacity of 3m³. 3 The standby hierarchical processing unit group, with a capacity of / h, is calculated by adding the original and new capacities to the unified control unit, resulting in a corrected total actual processing capacity of 27m. 3 / h.

[0231] For example, the treatment capacity range including the pollution fluctuation coefficient is 25.5m. 3 / h to 34.5m 3 / h, the calculated total actual processing capacity after correction is 27m3 / h, after comparison, it was confirmed that 27 is greater than 25.5 and less than 34.5, and it was determined that the corrected total actual treatment capacity meets the requirements. Subsequently, the new batch of industrial wastewater was introduced into multiple graded treatment unit groups for treatment.

[0232] This implementation method allows for the simultaneous acquisition of the pollution fluctuation coefficient of a new batch of industrial wastewater before it is introduced, and incorporates it into the calculation logic of the treatment capacity range. This enables the capacity determination to cover both water volume and pollution load fluctuation dimensions, avoiding capacity adaptation deviations caused by using only water volume as a reference and improving adaptation accuracy.

[0233] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A graded treatment device for industrial wastewater, characterized in that, include: It includes multiple graded treatment unit groups and a unified control unit. Each graded treatment unit group includes a primary pretreatment unit, a secondary biochemical treatment unit, and a tertiary advanced treatment unit arranged sequentially. Each graded treatment unit group has an inlet switching valve at its inlet and an outlet switching valve at its outlet. Water quality pollutant concentration sensors are installed at both the inlet and outlet of each graded treatment unit group. All inlet switching valves, outlet switching valves, and water quality pollutant concentration sensors are connected to the unified control unit. The unified control unit is used to obtain the total actual treatment capacity of the multiple hierarchical treatment unit groups currently configured; the unified control unit is also used to obtain the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater treatment before introducing the new batch of industrial wastewater into the multiple hierarchical treatment unit groups, and to determine the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient). When the total actual processing capacity is within the processing capacity range, the unified control unit controls the introduction of new batches of industrial wastewater into multiple graded processing unit groups for treatment. When the total actual treatment capacity is not within the treatment capacity range, the unified control unit controls and adjusts the treatment parameters of multiple graded treatment unit groups so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity. After the corrected total actual treatment capacity is within the treatment capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

2. The graded treatment device for industrial wastewater according to claim 1, characterized in that, The unified control unit is also used to obtain the pollution fluctuation coefficient of the new batch of industrial wastewater before it is fed into multiple graded treatment unit groups, and to determine the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient - pollution fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient + pollution fluctuation coefficient). The unified control unit is also used to control the introduction of new batches of industrial wastewater into multiple graded treatment unit groups when the total actual treatment capacity is within the treatment capacity range. When the total actual treatment capacity is not within the treatment capacity range, the unified control unit controls and adjusts the treatment parameters of multiple graded treatment unit groups so that the total actual treatment capacity of the multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity. After the corrected total actual treatment capacity is within the treatment capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

3. The graded treatment device for industrial wastewater according to claim 2, characterized in that, The unified control unit is also used to determine the ratio of the corrected total actual processing capacity to the preset processing capacity, as a processing cost coefficient; The unified control unit aims to minimize the treatment cost coefficient by adjusting the treatment parameters of multiple graded treatment unit groups until the total actual treatment capacity is within the treatment capacity range. Then, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

4. The graded treatment device for industrial wastewater according to claim 3, characterized in that, The unified control unit is also used to obtain the adjustment energy consumption coefficient corresponding to the adjustment of the total actual processing capacity of multiple hierarchical processing unit groups to the corrected total actual processing capacity. The unified control unit aims to minimize the sum of the treatment cost coefficient and the adjustment energy consumption coefficient. It adjusts the treatment parameters of multiple graded treatment unit groups until the total actual treatment capacity is corrected to within the treatment capacity range. Then, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

5. The graded treatment device for industrial wastewater according to claim 4, characterized in that, The unified control unit is also used to determine multiple adjustment treatment unit groups among multiple graded treatment unit groups when the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient. The unified control unit aims to minimize the sum of the treatment cost coefficient and the adjustment energy consumption coefficient. It controls the synchronous adjustment of the treatment parameters of multiple adjustment treatment unit groups, so that the total actual treatment capacity of multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity. Once the corrected total actual treatment capacity is within the treatment capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

6. The graded treatment device for industrial wastewater according to claim 5, characterized in that, The unified control unit is also used to control and synchronously adjust the treatment parameters of multiple adjustment treatment unit groups when the pollution fluctuation coefficient is greater than or equal to the preset pollution fluctuation coefficient. The unified control unit aims to minimize the sum of the treatment cost coefficient and the adjustment energy consumption coefficient. This adjusts the total actual treatment capacity of the multiple graded treatment unit groups to the corrected total actual treatment capacity. Once the corrected total actual treatment capacity is within the treatment capacity range, the water quality optimization coefficient of the multiple adjustment treatment unit groups is detected by the water quality pollutant concentration sensors of the multiple adjustment treatment unit groups. The water quality optimization coefficient characterizes the degree of water quality optimization before and after water quality treatment by the adjustment treatment unit groups. The unified control unit is also used to obtain the preset water quality optimization coefficients corresponding to the multiple adjustment treatment unit groups respectively; when the water quality optimization coefficient of each adjustment treatment unit group is greater than or equal to the preset water quality optimization coefficient corresponding to each adjustment treatment unit group, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment. The unified control unit is also used to optimize the secondary treatment parameters of the first adjustment treatment unit group when the first water quality optimization coefficient of any first adjustment treatment unit group in the multiple adjustment treatment unit groups is less than the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group, until the first water quality optimization coefficient of the first adjustment treatment unit group is greater than or equal to the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group, and then the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded treatment unit groups for treatment.

7. The graded treatment device for industrial wastewater according to claim 6, characterized in that, The unified control unit is also used to determine the first adjustment treatment unit group among multiple graded treatment unit groups when the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient; The unified control unit controls and adjusts the processing parameters of the first adjustment processing unit group so that the total actual processing capacity of multiple graded processing unit groups is adjusted to the corrected total actual processing capacity. Once the corrected total actual processing capacity is within the processing capacity range, the unified control unit controls the introduction of a new batch of industrial wastewater into the multiple graded processing unit groups for treatment.

8. The graded treatment device for industrial wastewater according to claim 7, characterized in that, The unified control unit is also used to control and adjust the treatment parameters of the first adjustment treatment unit group when the pollution fluctuation coefficient is less than the preset pollution fluctuation coefficient, so that the total actual treatment capacity of multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range. Then, the first water quality optimization coefficient of the first adjustment treatment unit group is detected by the water quality pollutant concentration sensor of the first adjustment treatment unit group. The first water quality optimization coefficient represents the degree of water quality optimization before and after the water quality treatment by the first adjustment treatment unit group. The unified control unit is also used to obtain the first preset water quality optimization coefficient corresponding to the first adjustment treatment unit group; when the first water quality optimization parameter is greater than or equal to the first preset water quality optimization coefficient, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment; when the first water quality optimization parameter is less than the first preset water quality optimization coefficient, the treatment parameters of the upper-level treatment unit of the first adjustment treatment unit group are optimized, and the upper-level water quality optimization coefficient of the upper-level adjustment treatment unit group is detected by the water quality pollutant concentration sensor of the upper-level adjustment treatment unit group; wherein, the upper-level water quality optimization coefficient characterizes the degree of water quality optimization before and after water quality treatment by the upper-level adjustment treatment unit group; The unified control unit is also used to obtain the upper-level preset water quality optimization coefficient corresponding to the upper-level adjustment treatment unit group; when the upper-level water quality optimization parameter is greater than or equal to the upper-level preset water quality optimization coefficient, the unified control unit controls the introduction of a new batch of industrial wastewater into multiple graded treatment unit groups for treatment.

9. A wastewater treatment control method, characterized in that, The method of using the graded treatment apparatus for industrial wastewater according to any one of claims 1 to 8 includes: Obtain the total actual treatment capacity of the currently configured multiple graded treatment unit groups; before introducing a new batch of industrial wastewater into the multiple graded treatment unit groups, obtain the preset treatment capacity and capacity fluctuation coefficient of the new batch of industrial wastewater treatment, and determine the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient); When the total actual treatment capacity is within the treatment capacity range, a new batch of industrial wastewater is introduced into multiple graded treatment unit groups for treatment; when the total actual treatment capacity is not within the treatment capacity range, the treatment parameters of multiple graded treatment unit groups are adjusted so that the total actual treatment capacity of multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then a new batch of industrial wastewater is introduced into multiple graded treatment unit groups for treatment.

10. The wastewater treatment control method according to claim 9, characterized in that, The method further includes: Before introducing a new batch of industrial wastewater into multiple graded treatment unit groups, the pollution fluctuation coefficient of the new batch of industrial wastewater is obtained, and the treatment capacity range from preset treatment capacity × (1 - capacity fluctuation coefficient - pollution fluctuation coefficient) to preset treatment capacity × (1 + capacity fluctuation coefficient + pollution fluctuation coefficient) is determined. When the total actual treatment capacity is within the treatment capacity range, a new batch of industrial wastewater is introduced into multiple graded treatment unit groups for treatment; when the total actual treatment capacity is not within the treatment capacity range, the treatment parameters of multiple graded treatment unit groups are adjusted so that the total actual treatment capacity of multiple graded treatment unit groups is adjusted to the corrected total actual treatment capacity, until the corrected total actual treatment capacity is within the treatment capacity range, and then a new batch of industrial wastewater is introduced into multiple graded treatment unit groups for treatment.

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