A method, platform, medium, and equipment for controlling aeration in a biological treatment tank.

Abstract

A method, platform, medium, and equipment for controlling aeration in a biological treatment tank are disclosed, relating to the field of wastewater treatment technology. The method includes: obtaining the influent ammonia nitrogen concentration of the aeration tank; determining a first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration; calculating the airflow requirement for each dissolved oxygen control zone based on the first target dissolved oxygen concentration; determining a first opening degree of each electric valve and / or a first intensity of each blower corresponding to each dissolved oxygen control zone based on the total airflow requirement; and controlling each electric valve to output airflow to each dissolved oxygen control zone according to the first opening degree and / or each blower to output airflow according to the first intensity. Implementing the technical solution provided in this application can improve the stability of effluent water quality and effectively reduce interference caused by human factors on the stable operation of the biological treatment tank process.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, specifically to a method, platform, medium, and equipment for controlling aeration in a biological treatment tank. Background Technology

[0002] Wastewater treatment aeration systems are intelligent control systems that optimize the aeration process in biological treatment tanks. The operation of aeration directly affects the dissolved oxygen level in the aeration tank. Insufficient aeration will lead to a low-oxygen state in the aeration tank, affecting the effluent quality. Excessive aeration, on the other hand, will result in energy waste and increased operating costs. Excess dissolved oxygen flowing back into the anaerobic zone will hinder normal anoxic denitrification and anaerobic phosphorus release processes, affecting the effluent quality.

[0003] The dissolved oxygen level in the aeration tank is mainly controlled by controlling the air volume of the blower and the opening of the air valves in the aeration branch pipes. Currently, the traditional control and adjustment methods are still used, which rely entirely on the experience and judgment of the central control personnel. There is a lack of scientific data support, and the manual adjustment by the central control personnel is also very lagging. This not only poses a certain risk of fluctuation in the effluent water quality, but also easily leads to excessive aeration. Summary of the Invention

[0004] This application provides a method, platform, medium, and equipment for controlling aeration in a biological treatment tank, which can improve the stability of effluent quality and effectively reduce the interference of human factors on the stable operation of the biological treatment tank process.

[0005] Firstly, this application provides a method for controlling aeration in a biological treatment tank, employing the following technical solution:

[0006] Obtain the ammonia nitrogen concentration in the influent of the aeration tank;

[0007] The first target dissolved oxygen concentration for each dissolved oxygen control zone is determined based on the influent ammonia nitrogen concentration.

[0008] The air volume requirement for each dissolved oxygen control zone is calculated based on the first target dissolved oxygen concentration.

[0009] Based on the total air volume requirements described above, determine the first opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone;

[0010] Control each of the electric valves to the first opening degree, and / or control each of the blowers to output gas volume to each of the dissolved oxygen control zones according to the first intensity.

[0011] By adopting the above technical solution, the first target dissolved oxygen concentration of each dissolved oxygen control zone is determined based on the influent ammonia nitrogen concentration. Then, based on the target dissolved oxygen concentration values, the required air volume for each dissolved oxygen control zone can be calculated. According to the air volume requirements of each dissolved oxygen control zone, the first opening degree of the electric valve and / or the first intensity of the blower corresponding to each dissolved oxygen control zone can be determined. By precisely controlling the opening degree of the electric valve and the intensity of the blower, the dissolved oxygen in the aeration tank can be controlled within a relatively stable and reasonable range. This can not only improve the stability of the effluent water quality, but also greatly reduce labor intensity and effectively reduce the interference caused by human factors on the stable operation of the biological treatment tank process.

[0012] Optionally, the aeration tank is divided into multiple dissolved oxygen control zones, and each dissolved oxygen control zone is equipped with an electric valve, a gas flow meter, a blower, and a dissolved oxygen meter.

[0013] By adopting the above technical solution, the aeration tank is divided into multiple dissolved oxygen control zones and equipped with electric valves, gas flow meters, blowers and dissolved oxygen instruments, which can achieve precise dissolved oxygen control and optimization, and improve the efficiency and sustainability of the wastewater treatment system.

[0014] Optionally, before determining the first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration, the method further includes: constructing an initial aeration tank calculation model; acquiring multiple historical influent ammonia nitrogen samples with different concentrations and corresponding dissolved oxygen concentration samples in different dissolved oxygen control zones; training the initial aeration tank calculation model based on the influent ammonia nitrogen samples and corresponding dissolved oxygen concentration samples in different dissolved oxygen control zones to obtain a trained target aeration tank calculation model; determining the first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration includes: inputting the influent ammonia nitrogen concentration and the information of each dissolved oxygen control zone into the target aeration tank calculation model to obtain the first target dissolved oxygen concentration for each dissolved oxygen control zone.

[0015] By adopting the above technical solution and establishing and training a calculation model for the aeration tank, the dissolved oxygen concentration under different influent ammonia nitrogen concentrations can be predicted. Based on the first target dissolved oxygen concentration output by the calculation model of the target aeration tank, a more precise dissolved oxygen control strategy can be formulated. This helps to avoid over-oxygenation or under-oxygenation, improves energy utilization efficiency, and ensures the normal operation of the biological treatment process in the aeration tank.

[0016] Optionally, the step of calculating the air volume requirement of each dissolved oxygen control zone based on each first target dissolved oxygen concentration includes: obtaining the volume of each dissolved oxygen control zone; multiplying each first target dissolved oxygen concentration by the corresponding volume of the dissolved oxygen control zone to obtain the oxygen demand mass of each dissolved oxygen control zone; and dividing the oxygen demand mass by the current air density to obtain the total air volume requirement of each dissolved oxygen control zone.

[0017] By adopting the above technical solutions and accurately calculating the air volume requirements, we can avoid over-oxygenation or under-oxygenation, thereby optimizing energy utilization and providing precise air volume. This ensures that the organic matter in the wastewater is fully oxidized and decomposed, while avoiding unnecessary energy waste.

[0018] Optionally, after controlling each of the electric valves to output air volume to each of the dissolved oxygen control zones according to the first valve opening degree and / or each of the blowers to output air volume according to the first intensity, the method further includes: obtaining the effluent ammonia nitrogen concentration of each of the dissolved oxygen control zones according to a preset cycle; determining whether each of the effluent ammonia nitrogen concentrations meets the standard concentration; if there is a target dissolved oxygen control zone where the effluent ammonia nitrogen concentration does not meet the standard concentration, then determining a second target dissolved oxygen concentration for the target dissolved oxygen control zone based on the effluent ammonia nitrogen concentration, then correcting each of the first valve opening degrees and / or each of the first intensities based on the second target dissolved oxygen concentration to obtain corrected second valve opening degrees and second intensities; controlling each of the electric valves to output air volume to each of the dissolved oxygen control zones according to the second valve opening degree and / or each of the blowers to output air volume according to the second intensity.

[0019] By adopting the above technical solution, a second target dissolved oxygen concentration is determined based on the effluent ammonia nitrogen concentration within the target dissolved oxygen control zone. Dynamic adjustments based on actual effluent conditions allow for more accurate control of the dissolved oxygen concentration to meet effluent standards. Furthermore, modifying control parameters enables more precise oxygen control, improving treatment efficiency and water quality stability.

[0020] Optionally, the step of correcting each of the first opening degrees and / or each of the first intensities based on the second target dissolved oxygen concentration to obtain the corrected second valve degrees and second intensities includes: obtaining the current dissolved oxygen concentration of each of the target dissolved oxygen control zones; determining whether the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration; if the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration, determining whether the first opening degree is less than the maximum opening threshold; if the first opening degree is less than the maximum opening threshold, increasing the first opening degree by a preset degree to obtain the second valve degree; if the first opening degree is not less than the maximum opening threshold, increasing the first intensity by a preset intensity to obtain the second intensity; if the current dissolved oxygen concentration is not less than the second target dissolved oxygen concentration, determining whether the first opening degree is greater than the minimum opening threshold; if the first opening degree is greater than the minimum opening threshold, decreasing the first opening degree by a preset degree to obtain the second valve degree; if the first opening degree is not greater than the minimum opening threshold, decreasing the first intensity by a preset intensity to obtain the second intensity.

[0021] By adopting the above technical solution, the first valve opening degree and / or the first intensity are corrected based on the second target dissolved oxygen concentration to obtain the corrected second valve opening degree and / or the second intensity, which can achieve precise oxygen control, avoid over-oxygen supply or insufficient oxygen supply, realize adaptive adjustment, and improve the treatment efficiency and stability of the wastewater treatment system.

[0022] Optionally, the method further includes: obtaining the content of each water pollutant discharged from the discharge outlet corresponding to each dissolved oxygen control zone; determining whether the content of each water pollutant meets the standard; if the content of the water pollutant does not meet the standard, sending an early warning message to the terminal of the corresponding person in charge, the early warning message including the non-compliant dissolved oxygen control zone corresponding to the non-compliant water pollutant content.

[0023] By adopting the above technical solution, the water quality at the wastewater discharge outlet is monitored in real time by tracking the content of pollutants and determining whether it meets standards. If the pollutant content is found to be substandard, an early warning message is sent to the relevant responsible person's terminal, reminding them to pay attention to the water quality issue. This helps relevant personnel take timely measures to prevent further environmental pollution caused by wastewater discharge.

[0024] A second aspect of this application provides a biological tank aeration control platform, the platform comprising:

[0025] The influent ammonia nitrogen concentration acquisition module is used to acquire the influent ammonia nitrogen concentration of the aeration tank.

[0026] The dissolved oxygen concentration determination module is used to determine the first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration.

[0027] The air volume demand determination module is used to calculate the air volume demand of each of the dissolved oxygen control zones based on the first target dissolved oxygen concentration.

[0028] The valve degree and intensity calculation module is used to determine the first valve opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone based on the total air volume requirement of each zone.

[0029] The output gas volume control module is used to control each of the electric valves to output gas volume to each of the dissolved oxygen control zones according to the first valve opening degree, and / or each of the blowers to output gas volume to each of the dissolved oxygen control zones according to the first intensity.

[0030] A third aspect of this application provides a computer storage medium storing a plurality of instructions adapted for loading by a processor and executing the method steps described above.

[0031] A fourth aspect of this application provides an electronic device comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to execute the method steps described above.

[0032] In summary, one or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0033] 1. This application determines the first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration. Then, based on the target dissolved oxygen concentration, the required air volume for each dissolved oxygen control zone can be calculated. Based on the air volume requirement for each dissolved oxygen control zone, the first opening degree of the electric valve and / or the first intensity of the blower corresponding to each dissolved oxygen control zone can be determined. By precisely controlling the opening degree of the electric valve and the intensity of the blower, the dissolved oxygen in the aeration tank can be controlled within a relatively stable and reasonable range. This can improve the stability of the effluent water quality, greatly reduce labor intensity, and effectively reduce the interference of human factors on the stable operation of the biological treatment tank process.

[0034] 2. This application determines a second target dissolved oxygen concentration for the target dissolved oxygen control zone based on the effluent ammonia nitrogen concentration. By dynamically adjusting the concentration according to actual effluent conditions, the dissolved oxygen concentration can be controlled more accurately to meet effluent standards. By modifying the control parameters, more precise oxygen control can be achieved, improving treatment efficiency and water quality stability.

[0035] 3. Based on the second target dissolved oxygen concentration, this application modifies the first valve opening degree and / or the first intensity to obtain the modified second valve opening degree and / or the second intensity, which can achieve precise oxygen control, avoid over-oxygen supply or insufficient oxygen supply, achieve adaptive adjustment, and improve the treatment efficiency and stability of the wastewater treatment system. Attached Figure Description

[0036] Figure 1 This is a schematic flowchart of a method for controlling aeration in a biological treatment tank according to an embodiment of this application;

[0037] Figure 2 This is a schematic diagram of an exemplary feedback correction process provided in an embodiment of this application;

[0038] Figure 3 This is a schematic diagram illustrating the principle of a biological aeration control method for a biological treatment tank provided in an embodiment of this application;

[0039] Figure 4 This is a schematic diagram of a module of a biological tank aeration control platform provided in an embodiment of this application;

[0040] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0041] Explanation of reference numerals in the attached diagram: 1. Influent ammonia nitrogen concentration acquisition module; 2. Dissolved oxygen concentration determination module; 3. Air volume demand determination module; 4. Valve degree and intensity calculation module; 5. Output air volume control module; 500. Electronic equipment; 501. Processor; 502. Communication bus; 503. User interface; 504. Network interface; 505. Memory. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0043] In the description of the embodiments of this application, the words "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design that is described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Rather, the use of the words "for example" or "for instance" is intended to present the relevant concepts in a specific manner.

[0044] In the description of the embodiments of this application, the term "multiple" means two or more. For example, multiple systems means two or more systems, and multiple screen terminals means two or more screen terminals. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0045] Please refer to Figure 1 This is a flowchart illustrating a method for controlling aeration in a biological treatment tank according to an embodiment of this application. This method can be implemented using a computer program, a microcontroller, or run on a biological treatment tank aeration control platform. It can also be used as an independent utility application. Specifically, the method includes steps 10 to 40, as follows:

[0046] Step 10: Obtain the ammonia nitrogen concentration in the influent of the aeration tank.

[0047] Specifically, in this embodiment, the influent ammonia nitrogen concentration refers to the concentration of ammonia nitrogen in the water entering the aeration tank. Ammonia nitrogen refers to nitrogen compounds existing in the form of ammonia (NH3) and ammonium ions (NH4+). In wastewater treatment, ammonia nitrogen is usually one of the important pollutants in wastewater, and its concentration directly affects the treatment effect and water quality improvement. An aeration tank is a facility used for wastewater or sewage treatment to provide oxygen to support the biodegradation process in sewage. By injecting air or oxygen into the water, the concentration of dissolved oxygen is increased, thereby promoting the growth of bacteria and other microorganisms and the degradation of organic matter. In this embodiment, an ammonia nitrogen concentration detection instrument is installed on the influent pipe of the aeration tank, which can detect the influent ammonia nitrogen concentration of the aeration tank and send the influent ammonia nitrogen concentration to the biological tank aeration control platform.

[0048] It should be noted that, in this embodiment, the aeration tank is divided into multiple dissolved oxygen control zones. These zones can be determined based on dissolved oxygen requirements and water characteristics. For example, they can be divided based on factors such as water size, water flow, and biological oxygen demand distribution. Each dissolved oxygen control zone is equipped with an electric valve, a gas flow meter, a blower, and a dissolved oxygen meter.

[0049] Specifically, electric valves are installed on the air intake pipes of each control zone. These valves can open or close the gas supply as needed. The gas flow rate can be adjusted by controlling the opening degree of the electric valves. Gas flow meters are installed on the gas supply pipes of each control zone. These flow meters measure the gas flow rate and convert it to a corresponding unit, such as standard liters per minute. Each control zone is equipped with a blower. The blowers generate gas flow and deliver the gas to the aeration tank. They provide sufficient oxygen supply to meet the needs of organisms in the aquatic body. Dissolved oxygen meters are installed in each control zone to monitor the dissolved oxygen concentration in the water in real time. These meters provide quantitative measurements of dissolved oxygen concentration for control and adjustment purposes.

[0050] Step 20: Determine the first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration.

[0051] Specifically, before the biological treatment tank aeration control platform is put into operation, historical samples of influent ammonia nitrogen concentration and corresponding dissolved oxygen concentration are collected in different dissolved oxygen control zones. These sample data should cover different ranges of influent ammonia nitrogen concentration and corresponding dissolved oxygen concentrations in each dissolved oxygen control zone. The collected data undergoes preprocessing, including data cleaning, outlier removal, and handling of missing data, to ensure data quality and completeness. An initial computational model for the aeration tank is constructed. Commonly used models include linear regression, decision trees, support vector machines, and neural networks, which are not limited here. The dataset is divided into training and test sets. Typically, most of the data is allocated to the training set for model training and parameter tuning, while a small portion is reserved for the test set to evaluate model performance. The selected model is trained using the training set. Based on influent ammonia nitrogen samples and corresponding dissolved oxygen concentration samples in different dissolved oxygen control zones, an initial aeration tank calculation model is developed. The model training process optimizes the selected algorithm and specific model to find the optimal parameter configuration. The initial aeration tank calculation model is then set according to this optimal parameter configuration. The performance of the aeration tank calculation model is evaluated using a test set. Based on the evaluation results, the model is adjusted and optimized to improve its performance and prediction accuracy, ultimately resulting in a trained target aeration tank calculation model. This trained target aeration tank calculation model can be used to predict future dissolved oxygen concentrations. Inputting the influent ammonia nitrogen concentration and dissolved oxygen control zone information into the target aeration tank calculation model outputs the target dissolved oxygen concentration for the corresponding dissolved oxygen control zone.

[0052] For example, in this embodiment of the application, the obtained influent ammonia nitrogen concentration and information of each dissolved oxygen control zone are input into the target aeration tank calculation model to obtain the first target dissolved oxygen concentration corresponding to each dissolved oxygen control zone.

[0053] Step 30: Calculate the total air volume requirement for each dissolved oxygen control zone based on the dissolved oxygen concentration of each first target zone.

[0054] Specifically, the volume of each dissolved oxygen control zone is obtained, and the volume of each dissolved oxygen control zone is pre-stored in the aeration control platform of the biological treatment tank. The first target dissolved oxygen concentration of each dissolved oxygen control zone is multiplied by the corresponding volume of the dissolved oxygen control zone to obtain the oxygen demand mass of each dissolved oxygen control zone. The oxygen demand mass is divided by the current air density to obtain the total air volume of each dissolved oxygen control zone. This total air volume is taken as the total air volume requirement. In other feasible embodiments, the air volume required per minute can also be calculated as the air volume requirement, which is not limited here.

[0055] For example, in this embodiment of the application, two dissolved oxygen control zones are set up, namely Dissolved Oxygen Control Zone 1 and Dissolved Oxygen Control Zone 2. The first target dissolved oxygen concentration corresponding to Dissolved Oxygen Control Zone 1 and the first target dissolved oxygen concentration corresponding to Dissolved Oxygen Control Zone 2 are calculated respectively. Then, based on each first target dissolved oxygen concentration and the volume of each dissolved oxygen control zone, the total air volume requirement corresponding to Dissolved Oxygen Control Zone 1 and the total air volume requirement corresponding to Dissolved Oxygen Control Zone 2 are calculated respectively.

[0056] Step 40: Based on the total air volume requirements, determine the first opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone.

[0057] Specifically, electric valves and blowers are installed in each dissolved oxygen control zone. The information on the electric valves and blowers corresponding to each dissolved oxygen control zone is pre-stored in the biological tank aeration control platform. Furthermore, the biological tank aeration control platform also has a pre-set table showing the relationship between air volume requirements and the opening degree of electric valves and / or the intensity of each blower. Based on the air volume requirements and this table, the first opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone can be determined.

[0058] For example, the total airflow demand is converted into per-minute airflow demand. Assume there are two dissolved oxygen control zones with airflow demands of 0.67 liters / minute and 1.67 liters / minute, respectively. Each dissolved oxygen control zone uses an adjustable electric valve with an opening range of 0 to 100%, a fast response time, and a minimum adjustable unit of 1%. Since it's possible that even with the electric valve at its maximum opening, the airflow demand may still not be met, the blower should be turned on. If the airflow demand for dissolved oxygen control zone 1 is smaller, then only the first valve opening to the corresponding value is needed. However, if the airflow demand for dissolved oxygen control zone 2 is larger, then the first valve opening needs to be adjusted to its maximum, and the corresponding blower should be turned on.

[0059] Step 50: Control each electric valve to open to the first degree, and / or control each blower to output gas to each dissolved oxygen control zone at the first intensity.

[0060] Specifically, after obtaining the first opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone, the biological tank aeration control platform configures the first opening degree and / or the first intensity as control parameters, and controls each electric valve to output gas to each dissolved oxygen control zone according to the first opening degree and / or each blower to output gas according to the first intensity.

[0061] Based on the above embodiments, as an optional embodiment, after determining the first opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone according to each air volume requirement, the following steps may also be included:

[0062] Step 501: Obtain the effluent ammonia nitrogen concentration of each dissolved oxygen control zone according to the preset cycle.

[0063] Step 502: Determine whether the ammonia nitrogen concentration in each effluent meets the standard concentration.

[0064] Specifically, wastewater treatment in aeration tanks typically takes several hours to tens of hours, or even longer. This is because the aeration tank is a crucial step in the biological treatment process, where microorganisms purify wastewater by adsorbing, absorbing, and degrading organic matter. In this embodiment, the sampling cycle for effluent ammonia nitrogen concentration in each dissolved oxygen control zone can be determined based on monitoring and standard requirements. For example, sampling can be performed hourly or per shift. The effluent ammonia nitrogen concentration sampled in each dissolved oxygen control zone is then assessed to determine if it meets the standard concentration. If the effluent ammonia nitrogen concentration meets the standard, the initial target dissolved oxygen concentration is maintained.

[0065] Step 503: If there is a target dissolved oxygen control zone where the effluent ammonia nitrogen concentration does not meet the standard concentration, then determine the second target dissolved oxygen concentration of the target dissolved oxygen control zone based on the effluent ammonia nitrogen concentration.

[0066] Step 504: Based on the second target dissolved oxygen concentration, correct each first opening degree and / or each first intensity to obtain the corrected second opening degree and each second intensity.

[0067] Step 505: Control each electric valve to open to the second degree, and / or control each blower to output gas to each dissolved oxygen control zone at the second intensity.

[0068] Specifically, if there is a target dissolved oxygen control zone where the effluent ammonia nitrogen concentration does not meet the standard concentration, it indicates that the effluent ammonia nitrogen concentration in that target dissolved oxygen control zone exceeds the standard. Without further treatment, it may not meet the discharge standards. Therefore, the effluent ammonia nitrogen concentration is input into the target aeration tank calculation model to determine the second target dissolved oxygen concentration for the target dissolved oxygen control zone. This second target dissolved oxygen concentration is the standard dissolved oxygen concentration corresponding to the current target dissolved oxygen control zone. Based on the second target dissolved oxygen concentration, the first valve opening degree and / or the first intensity are adjusted to obtain the corrected second valve opening degree and / or the second intensity. This ensures that the airflow generated by the second valve opening degree and / or the second intensity meets the requirements of the second target dissolved oxygen concentration. Then, the electric valves are controlled to output airflow to each dissolved oxygen control zone according to the second valve opening degree and / or the blowers according to the second intensity. By dynamically adjusting according to the actual effluent conditions, the dissolved oxygen concentration can be controlled more accurately to meet the effluent standards. By correcting the control parameters, more precise oxygen control can be achieved, improving treatment efficiency and water quality stability.

[0069] Based on the above embodiments, as an optional embodiment, the step of correcting each first opening degree and / or each first intensity based on the second target dissolved oxygen concentration to obtain each corrected second threshold and each second intensity may further include the following steps:

[0070] Step 5041: Obtain the current dissolved oxygen concentration of each target dissolved oxygen control zone.

[0071] Step 5042: Determine whether the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration.

[0072] Step 5043: If the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration, determine whether the first valve opening degree is less than the maximum valve opening threshold. If the first valve opening degree is less than the maximum valve opening threshold, increase the first valve opening degree by a preset valve degree to obtain the second valve degree. If the first valve opening degree is not less than the maximum valve opening threshold, increase the first intensity by a preset intensity to obtain the second intensity.

[0073] Step 5044: If the current dissolved oxygen concentration is not less than the second target dissolved oxygen concentration, determine whether the first valve opening degree is greater than the minimum valve opening threshold. If the first valve opening degree is greater than the minimum valve opening threshold, reduce the first valve opening degree by a preset valve degree to obtain the second valve degree. If the first valve opening degree is not greater than the minimum valve opening threshold, reduce the first intensity by a preset intensity to obtain the second intensity.

[0074] Please see Figure 2 , Figure 2 This is a schematic diagram of an exemplary feedback correction process.

[0075] Specifically, in this embodiment, the maximum valve opening threshold is preferably 90%, the minimum valve opening threshold is preferably 10%, the preset valve degree is preferably 5%, and the preset strength is preferably 1%. Other values ​​may be used in other feasible embodiments, and can be set and modified according to actual conditions.

[0076] For example, the current dissolved oxygen concentration of each target dissolved oxygen control zone is obtained, and it is determined whether the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration. If the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration, it is determined whether the first valve opening degree is less than 90%. If the first valve opening degree is less than 90%, it is increased by 5% to obtain the second valve opening degree. If the first valve opening degree is not less than 90%, the first intensity is increased by 1% to obtain the second intensity. If the current dissolved oxygen concentration is not less than the second target dissolved oxygen concentration, it is determined whether the first valve opening degree is greater than 10%. If the first valve opening degree is greater than 10%, it is decreased by 5% to obtain the second valve opening degree. If the first valve opening degree is not greater than 10%, the first intensity is decreased by 1% to obtain the second intensity. By correcting the first valve opening degree and / or the first intensity based on the second target dissolved oxygen concentration to obtain the corrected second valve opening degree and / or second intensity, precise oxygen control can be achieved, avoiding over-oxygenation or under-oxygenation, realizing adaptive adjustment, and improving the treatment efficiency and stability of the wastewater treatment system.

[0077] Based on the above embodiments, as an optional embodiment, the method may further include the following steps: Since machine malfunctions or other factors may occur during the treatment process, resulting in wastewater not meeting treatment standards, a wastewater testing instrument is installed at the discharge outlet corresponding to each dissolved oxygen control zone. This instrument can detect the pollutant content in the wastewater. After wastewater treatment, the content of each water pollutant at the discharge outlet corresponding to each dissolved oxygen control zone is obtained to determine whether the content of each water pollutant meets the standards. If the water pollutant content does not meet the standards, an early warning message is sent to the terminal of the corresponding responsible person. This early warning message includes the substandard dissolved oxygen control zone corresponding to the substandard water pollutant content, reminding them to pay attention to the water quality treatment problem in that substandard dissolved oxygen control zone. This helps relevant personnel to take timely measures to avoid further environmental pollution caused by wastewater discharge.

[0078] Please see Figure 3 The diagram below illustrates the principle of a biological tank aeration control method provided in this application embodiment. Figure 3 The principles of the embodiments of this application will be explained.

[0079] Specifically, this application employs a control strategy of "feedforward + model calculation + feedback". First, based on historical influent ammonia nitrogen samples of different concentrations in different dissolved oxygen control zones and corresponding dissolved oxygen concentration samples, an aeration tank calculation model is trained to obtain a target aeration tank calculation model. The biological tank aeration control platform acquires the influent ammonia nitrogen concentration of the aeration tank and uses it as a feedforward signal, inputting it into the target aeration tank calculation model to obtain the target dissolved oxygen value. Then, based on the target dissolved oxygen value, the airflow requirement for each dissolved oxygen control zone is calculated. The first opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone is determined based on the airflow requirement. The corresponding electric valves are controlled to output airflow to each dissolved oxygen control zone according to the first opening degree, and / or each blower is controlled to output airflow according to the first intensity.

[0080] The system acquires the effluent ammonia nitrogen concentration in each dissolved oxygen control zone according to a preset cycle. This concentration is used as a feedback signal for control correction. Target dissolved oxygen control zones where the effluent ammonia nitrogen concentration does not meet the standard concentration are identified. A second target dissolved oxygen concentration is determined for each target zone based on the ammonia nitrogen concentration. The first valve opening degree and / or the first intensity are then adjusted based on this second target concentration to obtain the corrected second valve opening degree and / or second intensity. Each electric valve is controlled to output air volume to each dissolved oxygen control zone according to the second valve opening degree, and / or each blower to output air volume according to the second intensity. Real-time data analysis from the probes in each dissolved oxygen control zone is used to perform feedback correction and adjustment of the blower volume and distribution, improving the timeliness and accuracy of system control.

[0081] Please see Figure 4 This is a schematic diagram of a biological treatment tank aeration control platform provided in an embodiment of this application. The biological treatment tank aeration control platform may include: an influent ammonia nitrogen concentration acquisition module 1, a dissolved oxygen concentration determination module 2, an air volume demand determination module 3, a valve degree and intensity calculation module 4, and an output air volume control module 5, wherein:

[0082] Influent ammonia nitrogen concentration acquisition module 1 is used to acquire the influent ammonia nitrogen concentration of the aeration tank;

[0083] Dissolved oxygen concentration determination module 2 is used to determine the first target dissolved oxygen concentration of each dissolved oxygen control zone based on the influent ammonia nitrogen concentration;

[0084] The air volume demand determination module 3 is used to calculate the air volume demand of each dissolved oxygen control zone based on the first target dissolved oxygen concentration.

[0085] Valve degree and strength calculation module 4 is used to determine the first valve opening degree of each electric valve and / or the first strength of each blower corresponding to each dissolved oxygen control zone based on the total air volume requirement of each zone.

[0086] The output gas volume control module 5 is used to control each of the electric valves to output gas volume to each of the dissolved oxygen control zones according to the first valve opening degree, and / or each of the blowers to output gas volume to each of the dissolved oxygen control zones according to the first intensity.

[0087] Optionally, a biological tank aeration control platform may also include a model building module.

[0088] The model building module is used to build an initial aeration tank calculation model; obtain multiple influent ammonia nitrogen samples with different concentrations and corresponding dissolved oxygen concentration samples in different dissolved oxygen control zones in history; and train the initial aeration tank calculation model based on the influent ammonia nitrogen samples and corresponding dissolved oxygen concentration samples in different dissolved oxygen control zones to obtain the trained target aeration tank calculation model.

[0089] Optionally, the air volume demand determination module 3 may also include: a volume acquisition unit for the control area, an oxygen demand calculation unit, and an air volume demand calculation unit.

[0090] The volume acquisition unit of the control zone is used to acquire the volume of each dissolved oxygen control zone;

[0091] The oxygen demand calculation unit is used to multiply the first target dissolved oxygen concentration by the volume of the corresponding dissolved oxygen control zone to obtain the oxygen demand of each dissolved oxygen control zone.

[0092] The air volume demand calculation unit is used to divide the oxygen demand mass by the current air density to obtain the total air volume demand of each dissolved oxygen control zone.

[0093] Optionally, a biological treatment tank aeration control platform may further include: a feedback correction module, which may include an effluent ammonia nitrogen concentration acquisition unit, an effluent ammonia nitrogen concentration determination unit, a correction unit, and a secondary control unit.

[0094] The effluent ammonia nitrogen concentration acquisition unit is used to acquire the effluent ammonia nitrogen concentration of each dissolved oxygen control zone according to a preset cycle.

[0095] The effluent ammonia nitrogen concentration determination unit is used to determine whether the ammonia nitrogen concentration of each effluent meets the standard concentration.

[0096] The correction unit is used to correct each of the first opening degree and / or each of the first intensities based on the second target dissolved oxygen concentration, so as to obtain each of the corrected second opening degree and / or each of the second intensities.

[0097] A secondary control unit is used to control each of the electric valves to open to the second degree, and / or each of the blowers to output gas to each of the dissolved oxygen control zones at the second intensity.

[0098] Optionally, the correction unit may also include: a current dissolved oxygen concentration acquisition subunit, a current dissolved oxygen concentration determination subunit, an intensity increase subunit, and an intensity decrease subunit.

[0099] The current dissolved oxygen concentration acquisition subunit is used to acquire the current dissolved oxygen concentration of each of the target dissolved oxygen control zones;

[0100] The current dissolved oxygen concentration determination subunit is used to determine whether the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration;

[0101] The intensity increasing subunit is used to determine whether the first valve opening degree is less than the maximum valve opening threshold if the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration. If the first valve opening degree is less than the maximum valve opening threshold, the first valve opening degree is increased by a preset valve degree to obtain a second valve degree. If the first valve opening degree is not less than the maximum valve opening threshold, the first intensity is increased by a preset intensity to obtain a second intensity.

[0102] The intensity reduction subunit is used to determine whether the first valve opening degree is greater than the minimum valve opening threshold if the current dissolved oxygen concentration is not less than the second target dissolved oxygen concentration. If the first valve opening degree is greater than the minimum valve opening threshold, the first valve opening degree is reduced by a preset valve degree to obtain the second valve degree. If the first valve opening degree is not greater than the minimum valve opening threshold, the first intensity is reduced by a preset intensity to obtain the second intensity.

[0103] Optionally, a biological aeration control platform may also include an early warning module.

[0104] The early warning module is used to obtain the content of each water pollutant discharged from the discharge outlet corresponding to each dissolved oxygen control zone; determine whether the content of each water pollutant meets the standard; if the content of the water pollutant does not meet the standard, send an early warning message to the terminal of the corresponding person in charge, and the early warning message includes the non-compliant dissolved oxygen control zone corresponding to the non-compliant water pollutant content.

[0105] It should be noted that the platform provided in the above embodiments is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the platform and method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0106] This application also provides a computer storage medium that can store multiple instructions, which are adapted to be loaded and executed by a processor as described above. Figures 1-4The illustrated embodiment provides a method for controlling aeration in a biological treatment tank. For details of the implementation process, please refer to [link / reference needed]. Figures 1-4 The specific details of the illustrated embodiments will not be elaborated here.

[0107] Please refer to Figure 5 This application also discloses an electronic device. Figure 5 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of this application. The electronic device 500 may include: at least one processor 501, at least one network interface 504, a user interface 503, a memory 505, and at least one communication bus 502.

[0108] The communication bus 502 is used to enable communication between these components.

[0109] The user interface 503 may include a display screen and a camera. Optionally, the user interface 503 may also include a standard wired interface and a wireless interface.

[0110] The network interface 504 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0111] The processor 501 may include one or more processing cores. The processor 501 connects to various parts of the server using various interfaces and lines, and performs various server functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in memory 505, and by calling data stored in memory 505. Optionally, the processor 501 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 501 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content to be displayed on the screen; and the modem handles wireless communication. It is understood that the modem may also not be integrated into the processor 501 and may be implemented as a separate chip.

[0112] The memory 505 may include random access memory (RAM) or read-only memory. Optionally, the memory 505 may include a non-transitory computer-readable storage medium. The memory 505 may be used to store instructions, programs, code, code sets, or instruction sets. The memory 505 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 505 may also be at least one storage device located remotely from the aforementioned processor 501. (Refer to...) Figure 5 The memory 505, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and an application program for a biological pool aeration control method.

[0113] exist Figure 5 In the illustrated electronic device 500, the user interface 503 is mainly used to provide an input interface for the user and to acquire user input data; while the processor 501 can be used to call an application program stored in the memory 505 for a biological pool aeration control method. When executed by one or more processors 501, the electronic device 500 performs one or more of the methods described in the above embodiments. It should be noted that, for the foregoing method embodiments, for the sake of simplicity, they are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, because according to this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0114] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0115] In the various embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some service interface; the indirect coupling or communication connection between apparatuses or units may be electrical or other forms.

[0116] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0117] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0118] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, portable hard drives, magnetic disks, or optical disks.

[0119] The above description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Other embodiments of this disclosure will be readily apparent to those skilled in the art upon consideration of the specification and the disclosure of practical truths.

[0120] This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described in this disclosure. The specification and embodiments are to be considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A method for controlling aeration in a biological treatment tank, characterized in that, The method, applied to a biological treatment tank aeration control platform, includes: The ammonia nitrogen concentration in the influent of the aeration tank is obtained. The aeration tank is divided into multiple dissolved oxygen control zones, and each dissolved oxygen control zone is equipped with an electric valve, a gas flow meter, a blower, and a dissolved oxygen meter. The first target dissolved oxygen concentration for each dissolved oxygen control zone is determined based on the influent ammonia nitrogen concentration. The total air volume requirement for each of the first target dissolved oxygen concentrations is calculated. Based on the total air volume requirements described above, determine the first opening degree of each electric valve and / or the first intensity of each blower corresponding to each dissolved oxygen control zone; Control each of the electric valves to open to the first degree, and / or control each of the blowers to output gas to each of the dissolved oxygen control zones at the first intensity; The concentration of ammonia nitrogen in the effluent of each dissolved oxygen control zone is obtained according to a preset cycle. Determine whether the ammonia nitrogen concentration in each of the effluents meets the standard concentration; If there is a target dissolved oxygen control zone where the effluent ammonia nitrogen concentration does not meet the standard concentration, then a second target dissolved oxygen concentration for the target dissolved oxygen control zone is determined based on the effluent ammonia nitrogen concentration. Based on the second target dissolved oxygen concentration, each of the first opening degree and / or each of the first intensity is corrected to obtain the corrected second opening degree and / or each of the second intensity. Control each of the electric valves to output gas to each of the dissolved oxygen control zones according to the second valve degree, and / or control each of the blowers to output gas according to the second intensity; Wherein, the step of correcting each of the first opening degrees and / or each of the first intensities based on the second target dissolved oxygen concentration to obtain the corrected second opening degrees and / or each of the second intensities includes: Obtain the current dissolved oxygen concentration of each of the target dissolved oxygen control zones; Determine whether the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration; If the current dissolved oxygen concentration is less than the second target dissolved oxygen concentration, then determine whether the first valve opening degree is less than the maximum valve opening threshold. If the first valve opening degree is less than the maximum valve opening threshold, then increase the first valve opening degree by a preset valve degree to obtain the second valve degree. If the first valve opening degree is not less than the maximum valve opening threshold, then increase the first intensity by a preset intensity to obtain the second intensity. If the current dissolved oxygen concentration is not less than the second target dissolved oxygen concentration, then determine whether the first valve opening degree is greater than the minimum valve opening threshold. If the first valve opening degree is greater than the minimum valve opening threshold, then reduce the first valve opening degree by a preset valve degree to obtain the second valve degree. If the first valve opening degree is not greater than the minimum valve opening threshold, then reduce the first intensity by a preset intensity to obtain the second intensity.

2. The method for controlling aeration in a biological treatment tank according to claim 1, characterized in that, Before determining the first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration, the method further includes: Construct an initial calculation model for the aeration tank; Acquire historical influent ammonia nitrogen samples with different concentrations and corresponding dissolved oxygen concentration samples in different dissolved oxygen control zones; Based on the influent ammonia nitrogen samples and corresponding dissolved oxygen concentration samples in different dissolved oxygen control zones, the initial aeration tank calculation model is trained to obtain the target aeration tank calculation model after training. The determination of the first target dissolved oxygen concentration for each dissolved oxygen control zone based on the influent ammonia nitrogen concentration includes: The influent ammonia nitrogen concentration and the information of each dissolved oxygen control zone are input into the target aeration tank calculation model to obtain the first target dissolved oxygen concentration of each dissolved oxygen control zone.

3. The method for controlling aeration in a biological treatment tank according to claim 1, characterized in that, The step of calculating the total air volume requirement for each of the dissolved oxygen control zones based on the first target dissolved oxygen concentration includes: Obtain the volume of each dissolved oxygen control zone; Multiply each of the first target dissolved oxygen concentrations by the corresponding volume of the dissolved oxygen control zone to obtain the oxygen demand of each of the dissolved oxygen control zones. Divide the oxygen demand mass by the current air density to obtain the total air volume requirement for each dissolved oxygen control zone.

4. The method for controlling aeration in a biological treatment tank according to claim 1, characterized in that, The method further includes: Obtain the content of each water pollutant discharged from the discharge outlet corresponding to each dissolved oxygen control zone; Determine whether the levels of each of the aforementioned water pollutants meet the standards; If the water pollutant content does not meet the standard, an early warning message will be sent to the terminal of the person in charge. The early warning message includes the substandard dissolved oxygen control zone corresponding to the substandard water pollutant content.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a plurality of instructions adapted to be loaded by a processor and executed as described in any one of claims 1 to 4.

6. An electronic device, characterized in that, The device includes a processor, a memory, and a transceiver. The memory is used to store instructions, the transceiver is used to communicate with other devices, and the processor is used to execute the instructions stored in the memory to cause the electronic device to perform the method as described in any one of claims 1 to 4.

Images