Intelligent quality-divided discarding system for wharf flushing sewage and control method

Abstract

The invention discloses an intelligent quality-based discarding system for wharf flushing sewage and a control method. The system comprises a sewage treatment device, a rainwater regulation and control subsystem and a wharf flushing sewage regulation and control subsystem, the rainwater regulation and control subsystem controls rainwater to be guided into a sewage treatment device or a rainwater drainage path according to rainfall and rainwater quality; the wharf flushing sewage regulation and control subsystem controls wharf flushing sewage to be guided into the sewage treatment device or a discarding path according to the water quality; the central controller performs dynamic evaluation according to the liquid level and the treatment load of the sewage treatment device to obtain a dynamic evaluation result; according to the dynamic evaluation result and the weather prediction result, double-path cooperative control is carried out on the rainwater regulation and control subsystem and the wharf flushing sewage regulation and control subsystem; through double-path cooperative control and dynamic evaluation prediction, accurate quality-divided discarding of wharf sewage is realized, and the treatment efficiency, the impact resistance and the operation economy are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of water pollution control technology, specifically relating to an intelligent separation and diversion system and control method for dock flushing wastewater. Background Technology

[0002] As vital logistics hubs, port terminals are prone to accumulating particulate matter and oil stains on their surfaces during the loading, unloading, transshipment, and storage of bulk and general cargo. To control dust and meet environmental protection requirements, terminals must undergo regular high-pressure washing operations, generating a large amount of wastewater. This type of wastewater is characterized by high suspended solids concentrations, the presence of petroleum and organic pollutants, and significant fluctuations in water quality and quantity due to operational intensity and weather conditions, making it challenging to treat.

[0003] Currently, wharf areas generally adopt the traditional model of "combined collection and unified treatment of initial rainwater and flushing wastewater," using a combination of processes such as sedimentation, oil separation, flotation, filtration, and biological treatment before reuse or discharge. However, existing systems combine rainwater and flushing wastewater into the same treatment unit, failing to effectively differentiate the water quality of different influent sources. When the influent pollutant concentration reaches its peak, the dosage of treatment system chemicals increases significantly, raising operating costs and easily leading to problems such as sludge bulking or scum floating in treatment units such as sedimentation tanks and biological treatment tanks, resulting in insufficient system operational stability.

[0004] In terms of water diversion strategies, traditional devices typically rely on fixed initial rainfall amounts or fixed times as diversion criteria, failing to detect instantaneous water quality changes and the actual load on downstream treatment facilities in real time. This singular decision-making mechanism often results in "failure to divert water when it should," leading to system overload, or "diversion when it should not," resulting in waste of treatable water resources, lacking flexibility and accuracy.

[0005] Furthermore, there is a lack of a unified collaborative scheduling platform for the two pathways of rainwater and flushing wastewater. Existing control systems are mostly based on simple liquid level interlocking, which makes it difficult to dynamically optimize and adjust based on multiple parameters such as real-time rainfall, water quality, system load, remaining chemical reagents, and energy consumption. The lack of prediction and early warning mechanisms results in weak system resistance to shock loads and requires improvement in operational reliability.

[0006] The incomplete monitoring system, data silos, and lack of predictive models have resulted in existing systems being mostly in a passive response state, unable to make advance predictions of rainstorms or high pollution events, and having a low level of intelligence, making it difficult to meet the needs of modern port for efficient, stable, and low-consumption environmental management. Summary of the Invention

[0007] This invention provides an intelligent separation and diversion system and control method for dock flushing wastewater, which solves the technical problems of low treatment efficiency and weak resistance to shock loads caused by the combined collection of rainwater and flushing wastewater through a single path in existing dock wastewater treatment systems.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] The first aspect of the present invention provides an intelligent separation and diversion system for dock flushing wastewater, including a wastewater treatment device, a rainwater control subsystem, and a dock flushing wastewater control subsystem;

[0010] The rainwater control subsystem collects rainwater within the wharf and monitors rainfall and water quality in real time, controlling the direction of rainwater into the sewage treatment device or the rainwater discharge path based on rainfall and water quality.

[0011] The dock flushing wastewater control subsystem collects the flushing wastewater in the dock and monitors the wastewater quality in real time. Based on the water quality, it controls the flow of the dock flushing wastewater into the wastewater treatment device or the diversion path.

[0012] The wastewater treatment device, rainwater control subsystem, and dock flushing wastewater control subsystem are electrically connected to the central controller.

[0013] The central controller obtains the dynamic evaluation results of the wastewater treatment device by dynamically evaluating the liquid level and treatment load of the wastewater treatment device; based on the dynamic evaluation results and weather forecast results, it generates dual-path collaborative control commands to perform dual-path collaborative control on the rainwater control subsystem and the dock flushing wastewater control subsystem; the dual-path collaborative control commands include the water source diversion threshold and flow allocation value.

[0014] Furthermore, the rainwater control subsystem includes a rain gauge, a water quality testing device, a rainwater analysis processor, and a rainwater flow direction control valve; the rainwater analysis processor is communicatively connected to the central controller; the input terminal of the rainwater analysis processor is electrically connected to the rain gauge and the water quality testing device, and the output terminal of the rainwater analysis processor is electrically connected to the rainwater flow direction control valve;

[0015] The rainwater analysis processor receives the diversion threshold and rainwater flow allocation value sent by the central controller; obtains the rainfall and water quality indicators of the rainwater monitored in real time by the rain gauge and the water quality monitoring equipment; generates rainwater flow direction control instructions based on the rainfall, rainwater quality and diversion threshold; and sends the rainwater flow direction control instructions to the rainwater flow direction control valve.

[0016] The rainwater flow direction control valve directs rainwater into the rainwater discharge path according to the rainwater flow direction control command, or directs it into the sewage treatment device according to the rainwater flow distribution value.

[0017] Furthermore, the dock flushing wastewater control subsystem includes wastewater monitoring equipment, a water quality analyzer, and a wastewater flow direction control valve; the water quality analyzer is communicatively connected to the central controller; the input terminal of the water quality analyzer is electrically connected to the wastewater monitoring equipment; and the output terminal of the water quality analyzer is electrically connected to the wastewater flow direction control valve.

[0018] The water quality analysis processor receives the diversion threshold and sewage flow allocation value sent by the central controller; acquires the water quality indicators of the dock flushing sewage monitored in real time by the sewage monitoring equipment; generates sewage flow direction control instructions by comparing the sewage water quality indicators and the diversion threshold; and sends the sewage flow direction control instructions to the sewage flow direction control valve.

[0019] The sewage flow direction control valve directs the dock flushing sewage into the diversion path according to the sewage flow direction control command, or directs it into the sewage treatment device according to the sewage flow rate allocation value.

[0020] Furthermore, the wastewater treatment device includes an equalization tank, an oil-water separation sedimentation tank, a filtration tank, and a disinfection device connected in sequence; the inlet of the equalization tank is equipped with a flow sensor, which detects the inlet flow of the equalization tank in real time as the treatment load of the wastewater treatment device; the equalization tank is equipped with a level gauge, which monitors the water level of the equalization tank in real time as the liquid level of the wastewater treatment device; the level gauge and the flow sensor are communicatively connected to the central controller.

[0021] Furthermore, it also includes an early warning module; the early warning module is communicatively connected to the central controller; the central controller determines whether the treatment load of the sewage treatment device has reached the sewage treatment threshold; if the treatment load of the sewage treatment device has reached the sewage treatment threshold, it adjusts the diversion threshold according to the liquid level of the sewage treatment device and sends it to the rainwater control subsystem and the dock flushing sewage control subsystem.

[0022] A second aspect of the present invention provides a control method for an intelligent separation and diversion system for dock flushing wastewater, comprising:

[0023] Dynamic evaluation results of the wastewater treatment device are obtained by dynamically evaluating the liquid level and treatment load of the wastewater treatment device; dual-path collaborative control instructions are generated based on the dynamic evaluation results and weather forecast results and sent to the rainwater control subsystem and the dock flushing wastewater control subsystem; the dual-path collaborative control instructions include the water source diversion threshold and flow allocation value;

[0024] Collect rainwater within the dock and monitor rainfall and water quality in real time. Generate rainwater flow direction control instructions based on rainfall, water quality, and diversion threshold. Guide rainwater into the rainwater discharge path according to the rainwater flow direction control instructions, or guide it into the sewage treatment device according to the rainwater flow distribution value.

[0025] Collect wastewater from the dock and monitor its quality in real time; generate wastewater flow direction control instructions by comparing wastewater quality with a diversion threshold; and guide the dock wastewater to a diversion path or to a wastewater treatment device according to the wastewater flow distribution value based on the wastewater flow direction control instructions.

[0026] Furthermore, the wastewater and rainwater quality includes at least one of suspended solids concentration, oil pollutant concentration, and chemical oxygen demand.

[0027] Furthermore, based on the dynamic assessment results and weather forecast results, dual-path coordinated control instructions are generated; specifically including:

[0028] The wastewater diversion threshold is calculated based on the dynamic evaluation results of the wastewater treatment plant and weather forecast results, expressed by the following formula:

[0029]

[0030]

[0031]

[0032] In the formula, For dynamic evaluation results, and These are the weighting coefficients; Let be the liquid level of the wastewater treatment device at time t; This represents the highest liquid level in the wastewater treatment unit. The treatment load of the wastewater treatment plant at time t; This represents the maximum processing load of the wastewater treatment plant. For weather forecast evaluation coefficients; For the confidence weight of weather forecasts, This is based on weather forecasts predicting precipitation for the next 24 hours. This is the baseline value for precipitation. and For adjustment coefficients, This is the initial value for the feed-off threshold; This is the threshold for discarding data.

[0033] The rainwater and sewage flow distribution values ​​are calculated based on weather forecast assessment coefficients, expressed by the following formula:

[0034]

[0035]

[0036] In the formula, Assigning values ​​to rainwater flow. Assigning values ​​to wastewater flow rate The amount of rainwater collected by the rainwater regulation subsystem per unit time. The amount of wastewater collected by the wastewater control subsystem for dock flushing; This refers to the available wastewater treatment capacity of the wastewater treatment plant.

[0037] Furthermore, rainwater flow direction control instructions are generated based on rainfall, rainwater quality, and runoff diversion thresholds, specifically including:

[0038] If the rainwater quality is below the diversion threshold, the rainwater flow direction control instruction is to direct the rainwater into the rainwater discharge path;

[0039] If the rainwater quality reaches the diversion threshold and the rainfall is ≤5mm / h, the rainwater flow direction control command is to divert all the rainwater collected by the rainwater regulation subsystem into the sewage treatment device.

[0040] If the rainwater quality reaches the diversion threshold, and the rainfall is 5mm / h ≤ rainfall ≤ 20mm / h, the rainwater flow direction control instruction is to guide the rainwater into the sewage treatment device according to the rainwater flow distribution value.

[0041] If the rainfall is greater than 20 mm / h, the rainwater flow control command is to first guide the rainwater into the sewage treatment device according to the rainwater flow distribution value. When the rainwater quality is less than the diversion threshold, the rainwater is guided into the rainwater discharge path. When the rainwater quality is less than the purification threshold, the rainwater regulation subsystem is controlled to collect the set capacity H of rainwater for dock washing.

[0042] Furthermore, according to the wastewater flow direction control command, the dock flushing wastewater is directed to the diversion path, or directed to the wastewater treatment device according to the wastewater flow rate allocation value; specifically including:

[0043] If the wastewater quality index is lower than the diversion threshold, the wastewater from the dock flushing will be diverted to the diversion path.

[0044] If the wastewater quality index exceeds the diversion threshold, and the rainfall is ≤20mm / h, the wastewater will be diverted to the wastewater treatment device according to the wastewater flow distribution value. When the dock flushing wastewater control subsystem collects the dock flushing wastewater to the maximum capacity, an early warning will be issued.

[0045] If the rainfall is greater than 20 mm / h, shut down the dock flushing sewage control subsystem.

[0046] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0047] This invention establishes two independent control paths for rainwater and flushing wastewater, which are uniformly scheduled by a collaborative control system. Intelligent allocation of treatment capacity is achieved through parallel control. This architecture enables the system to perform differentiated management based on the characteristics of the incoming water and the capacity of the downstream system, avoiding over-treatment of high-quality water bodies and under-treatment of highly polluted water bodies, significantly improving treatment efficiency and resource utilization.

[0048] This invention dynamically assesses the real-time liquid level and treatment load of the wastewater treatment device and integrates weather forecast results to generate forward-looking control commands. It can adjust the diversion threshold and flow distribution strategy in advance, effectively reducing the instantaneous impact load of the intelligent diversion system for dock flushing wastewater. By monitoring water quality indicators in real time and comparing them with dynamic thresholds, the system can accurately identify divertable water bodies and guide them into the discharge path, effectively reducing the amount of ineffective treatment. Attached Figure Description

[0049] Figure 1 This is a structural diagram of the intelligent wastewater separation and diversion system for dock flushing provided in Embodiment 1 of the present invention;

[0050] Figure 2 This is a control flowchart of the intelligent wastewater separation and diversion system for dock flushing provided in Embodiment 1 of the present invention. Detailed Implementation

[0051] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0052] Example 1

[0053] like Figure 1 As shown, this embodiment provides an intelligent separation and diversion system for dock flushing wastewater, including a wastewater treatment device, a rainwater control subsystem, and a dock flushing wastewater control subsystem;

[0054] The rainwater control subsystem collects rainwater within the wharf and monitors rainfall and water quality in real time. Based on rainfall and water quality, it controls the direction of rainwater discharge into the sewage treatment plant or the rainwater discharge path; specifically including:

[0055] The rainwater regulation subsystem includes a rain gauge, a water quality testing device, a rainwater analysis processor, and a rainwater flow direction control valve; the rainwater analysis processor is communicatively connected to the central controller; the input terminal of the rainwater analysis processor is electrically connected to the rain gauge and the water quality testing device, and the output terminal of the rainwater analysis processor is electrically connected to the rainwater flow direction control valve;

[0056] The rainwater analysis processor receives the diversion threshold and rainwater flow allocation value sent by the central controller; obtains the rainfall and water quality indicators of the rainwater monitored in real time by the rain gauge and the water quality monitoring equipment; generates rainwater flow direction control instructions based on the rainfall, rainwater quality and diversion threshold; and sends the rainwater flow direction control instructions to the rainwater flow direction control valve.

[0057] The rainwater flow direction control valve directs rainwater into the rainwater discharge path according to the rainwater flow direction control command, or directs it into the sewage treatment device according to the rainwater flow distribution value.

[0058] By coordinating rain gauges, water quality monitoring equipment, and a rainwater analysis processor, real-time sensing and rapid local response to rainwater quality and rainfall are achieved. As an edge computing unit, the rainwater analysis processor directly receives the diversion threshold and flow allocation values ​​from the central controller, and generates localized flow direction control commands based on field monitoring data, effectively reducing the impact of communication latency on control accuracy. This hierarchical control mode ensures both the scientific nature of global collaborative optimization and the real-time performance and flexibility of local control, making rainwater diversion decisions more precise and avoiding resource waste or system overload risks associated with traditional fixed diversion modes.

[0059] The dock flushing wastewater control subsystem collects the flushing wastewater within the dock and monitors its quality in real time. Based on the water quality, it controls the diversion of the dock flushing wastewater to a wastewater treatment device or a diversion path. Specifically, it includes:

[0060] The dock flushing wastewater control subsystem includes wastewater monitoring equipment, a water quality analyzer, and a wastewater flow direction control valve; the water quality analyzer is communicatively connected to the central controller; the input terminal of the water quality analyzer is electrically connected to the wastewater monitoring equipment; and the output terminal of the water quality analyzer is electrically connected to the wastewater flow direction control valve.

[0061] The water quality analysis processor receives the diversion threshold and sewage flow allocation value sent by the central controller; acquires the water quality indicators of the dock flushing sewage monitored in real time by the sewage monitoring equipment; generates sewage flow direction control instructions by comparing the sewage water quality indicators and the diversion threshold; and sends the sewage flow direction control instructions to the sewage flow direction control valve.

[0062] The sewage flow direction control valve directs the dock flushing sewage into the diversion path according to the sewage flow direction control command, or directs it into the sewage treatment device according to the sewage flow rate allocation value.

[0063] By combining wastewater monitoring equipment, water quality analyzers, and wastewater flow control valves, an independent closed-loop control path for flushing wastewater is constructed. After receiving dynamic thresholds from the central controller, the water quality analyzer can quickly complete local comparison and decision-making based on real-time water quality indicators, achieving accurate identification and timely diversion of highly polluted wastewater. This avoids the problem of wastewater mixing with rainwater and exacerbating the fluctuation of treatment load. At the same time, dynamic flow allocation ensures the maximum utilization of treatable wastewater and improves the system's adaptability to changes in the intensity of dock operations.

[0064] The wastewater treatment device includes an equalization tank, an oil-water separation sedimentation tank, a filtration tank, and a disinfection device connected in sequence. The inlet of the equalization tank is equipped with a flow sensor, which detects the flow rate at the inlet of the equalization tank in real time as the treatment load of the wastewater treatment device. The equalization tank is equipped with a level gauge, which monitors the water level of the equalization tank in real time as the liquid level of the wastewater treatment device. The level gauge and the flow sensor are communicatively connected to the central controller.

[0065] The wastewater treatment device, rainwater control subsystem, and dock flushing wastewater control subsystem are electrically connected to the central controller. The central controller performs dynamic evaluation of the wastewater treatment device based on the liquid level and treatment load of the wastewater treatment device to obtain the dynamic evaluation results of the wastewater treatment device. Based on the dynamic evaluation results and weather forecast results, it generates dual-path collaborative control commands and sends them to the rainwater control subsystem and the dock flushing wastewater control subsystem. The dual-path collaborative control commands include the water source diversion threshold and the flow allocation value.

[0066] The central controller dynamically assesses the wastewater treatment plant's real-time water level and treatment load, and integrates weather forecasts to generate proactive control commands. This fundamentally solves the problems of neglecting water quality differences and low treatment efficiency in traditional combined sewer systems. This architecture enables the system to have predictive scheduling capabilities, proactively adjusting the diversion strategy before heavy rainfall, significantly improving the system's resistance to shock loads and operational stability, while avoiding over-treatment of high-quality water resources and ineffective treatment of heavily polluted water bodies.

[0067] The early warning module is communicatively connected to the central controller; the central controller determines whether the treatment load of the sewage treatment device has reached the sewage treatment threshold. If the treatment load of the sewage treatment device has reached the sewage treatment threshold, the central controller adjusts the diversion threshold according to the liquid level of the sewage treatment device and sends it to the rainwater control subsystem and the dock flushing sewage control subsystem.

[0068] Example 2

[0069] like Figure 2 As shown, this embodiment provides a control method for an intelligent wastewater separation and diversion system for dock flushing. The control method is applied to the intelligent wastewater separation and diversion system for dock flushing described in Embodiment 1, and includes:

[0070] Dynamic evaluation results of the wastewater treatment device are obtained by dynamically evaluating the liquid level and treatment load of the wastewater treatment device; dual-path collaborative control instructions are generated based on the dynamic evaluation results and weather forecast results and sent to the rainwater control subsystem and the dock flushing wastewater control subsystem; the dual-path collaborative control instructions include the water source diversion threshold and flow allocation value;

[0071] The wastewater diversion threshold is calculated based on the dynamic evaluation results of the wastewater treatment plant and weather forecast results, expressed by the following formula:

[0072]

[0073]

[0074]

[0075] In the formula, For dynamic evaluation results, and These are the weighting coefficients; Let be the liquid level of the wastewater treatment device at time t; This represents the highest liquid level in the wastewater treatment unit. The treatment load of the wastewater treatment plant at time t; This represents the maximum processing load of the wastewater treatment plant. For weather forecast evaluation coefficients; For the confidence weight of weather forecasts, This is based on weather forecasts predicting precipitation for the next 24 hours. This is the baseline value for precipitation. and For adjustment coefficients, This is the initial value for the feed-off threshold; This is the threshold for discarding data.

[0076] The rainwater and sewage flow distribution values ​​are calculated based on weather forecast assessment coefficients, expressed by the following formula:

[0077]

[0078]

[0079] In the formula, Assigning values ​​to rainwater flow. Assigning values ​​to wastewater flow rate The amount of rainwater collected by the rainwater regulation subsystem per unit time. The amount of wastewater collected by the wastewater control subsystem for dock flushing; This refers to the available wastewater treatment capacity of the wastewater treatment plant.

[0080] By introducing the liquid level-to-load ratio, the treatment load ratio, and the precipitation prediction coefficient, standardized measurements of system status and the external environment are achieved, avoiding the subjectivity of traditional empirical control. This quantitative model enables the system to continuously and smoothly adjust the diversion threshold according to changes in operating conditions, rather than a simple step-like switch, significantly improving the fineness and foresight of control. The flow allocation formula uses the weather prediction coefficient as a weight, realizing the dynamic optimization of the treatment capacity between the two paths, maximizing the overall treatment efficiency.

[0081] Collect rainwater within the dock and monitor rainfall and water quality in real time; generate rainwater flow direction control instructions based on rainfall, water quality, and diversion thresholds; guide rainwater into the rainwater discharge path according to the rainwater flow direction control instructions, or guide it into the sewage treatment device according to the rainwater flow distribution value; specifically including:

[0082] If the rainwater quality is below the diversion threshold, the rainwater flow direction control instruction is to direct the rainwater into the rainwater discharge path;

[0083] If the rainwater quality reaches the diversion threshold and the rainfall is ≤5mm / h, the rainwater flow direction control command is to divert all the rainwater collected by the rainwater regulation subsystem into the sewage treatment device.

[0084] If the rainwater quality reaches the diversion threshold, and the rainfall is 5mm / h ≤ rainfall ≤ 20mm / h, the rainwater flow direction control instruction is to guide the rainwater into the sewage treatment device according to the rainwater flow distribution value.

[0085] If the rainfall is greater than 20 mm / h, the rainwater flow control command is to first guide the rainwater into the sewage treatment device according to the rainwater flow distribution value. When the rainwater quality is less than the diversion threshold, the rainwater is guided into the rainwater discharge path. When the rainwater quality is less than the purification threshold, the rainwater regulation subsystem is controlled to collect the set capacity H of rainwater for dock washing.

[0086] Rainfall is divided into three ranges: light, medium, and heavy, each with a corresponding differentiated treatment mode. Light rain is treated in its entirety to fully utilize system capacity; medium rain is treated according to allocated values, achieving coordinated scheduling with wastewater; heavy rain involves dynamic switching between discharge and collection based on water quality, ensuring system safety while also collecting high-quality rainwater for reuse when water quality meets standards. This refined control logic enables the system to respond precisely based on the coupling relationship between rainfall intensity and pollution levels, while simultaneously utilizing rainwater resources to replace some of the dock's flushing water.

[0087] Wastewater from the dock is collected and its quality is monitored in real time. In this embodiment, the wastewater and rainwater quality include at least one of suspended solids concentration, oil pollutant concentration, and chemical oxygen demand (COD). Wastewater flow direction control instructions are generated by comparing the wastewater quality with a diversion threshold. Based on these instructions, the dock wastewater is directed to a diversion path or, according to a wastewater flow allocation value, to a wastewater treatment device. Specifically, this includes:

[0088] If the wastewater quality index is lower than the diversion threshold, the wastewater from the dock flushing will be diverted to the diversion path.

[0089] If the wastewater quality index exceeds the diversion threshold, and the rainfall is ≤20mm / h, the wastewater will be diverted to the wastewater treatment device according to the wastewater flow distribution value. When the dock flushing wastewater control subsystem collects the dock flushing wastewater to the maximum capacity, an early warning will be issued.

[0090] If the rainfall is greater than 20 mm / h, shut down the dock flushing sewage control subsystem.

[0091] This embodiment implements dynamic collaborative control of two independent paths: rainwater and flushing wastewater. Based on the real-time liquid level and load assessment system of the wastewater treatment device, and by integrating the weather forecast data for the next 24 hours to predict the inflow trend, the flow diversion threshold and flow allocation value of the two paths are dynamically calculated and adjusted synchronously. This enables rainwater and flushing wastewater to automatically optimize the allocation of treatment priorities when the treatment capacity is limited, to actively divert low-pollution rainwater before heavy rain to free up capacity, and to accurately divert wastewater to avoid impact during high-pollution events, thereby achieving peak-shifting scheduling and load balancing of the two paths.

[0092] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0093] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0094] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0095] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0096] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A smart wastewater separation and diversion system for dock flushing, characterized in that, This includes wastewater treatment equipment, a rainwater control subsystem, and a dock flushing wastewater control subsystem; The rainwater control subsystem collects rainwater within the wharf and monitors rainfall and water quality in real time, controlling the direction of rainwater into the sewage treatment device or the rainwater discharge path based on rainfall and water quality. The dock flushing wastewater control subsystem collects the flushing wastewater in the dock and monitors the wastewater quality in real time. Based on the water quality, it controls the flow of the dock flushing wastewater into the wastewater treatment device or the diversion path. The wastewater treatment device, rainwater control subsystem, and dock flushing wastewater control subsystem are electrically connected to the central controller. The central controller obtains the dynamic evaluation results of the wastewater treatment device by dynamically evaluating the liquid level and treatment load of the wastewater treatment device; and generates dual-path collaborative control commands based on the dynamic evaluation results and weather forecast results to perform dual-path collaborative control on the rainwater control subsystem and the dock flushing wastewater control subsystem. The dual-path collaborative control commands include the water source diversion threshold and the flow allocation value.

2. The intelligent wastewater separation and diversion system for dock flushing as described in claim 1, characterized in that, The rainwater regulation subsystem includes a rain gauge, a water quality testing device, a rainwater analysis processor, and a rainwater flow direction control valve; the rainwater analysis processor is communicatively connected to the central controller; the input terminal of the rainwater analysis processor is electrically connected to the rain gauge and the water quality testing device, and the output terminal of the rainwater analysis processor is electrically connected to the rainwater flow direction control valve; The rainwater analysis processor receives the diversion threshold and rainwater flow allocation value sent by the central controller; obtains the rainfall and water quality indicators of the rainwater monitored in real time by the rain gauge and the water quality monitoring equipment; generates rainwater flow direction control instructions based on the rainfall, rainwater quality and diversion threshold; and sends the rainwater flow direction control instructions to the rainwater flow direction control valve. The rainwater flow direction control valve directs rainwater into the rainwater discharge path according to the rainwater flow direction control command, or directs it into the sewage treatment device according to the rainwater flow distribution value.

3. The intelligent wastewater separation and diversion system for dock flushing as described in claim 1, characterized in that, The dock flushing wastewater control subsystem includes wastewater monitoring equipment, a water quality analyzer, and a wastewater flow direction control valve; the water quality analyzer is communicatively connected to the central controller; the input terminal of the water quality analyzer is electrically connected to the wastewater monitoring equipment; and the output terminal of the water quality analyzer is electrically connected to the wastewater flow direction control valve. The water quality analysis processor receives the diversion threshold and sewage flow allocation value sent by the central controller; acquires the water quality indicators of the dock flushing sewage monitored in real time by the sewage monitoring equipment; generates sewage flow direction control instructions by comparing the sewage water quality indicators and the diversion threshold; and sends the sewage flow direction control instructions to the sewage flow direction control valve. The sewage flow direction control valve directs the dock flushing sewage into the diversion path according to the sewage flow direction control command, or directs it into the sewage treatment device according to the sewage flow rate allocation value.

4. The intelligent wastewater separation and diversion system for dock flushing as described in claim 1, characterized in that, The wastewater treatment device includes an equalization tank, an oil-water separation sedimentation tank, a filtration tank, and a disinfection device connected in sequence. The inlet of the equalization tank is equipped with a flow sensor, which detects the flow rate at the inlet of the equalization tank in real time as the treatment load of the wastewater treatment device. The equalization tank is equipped with a level gauge, which monitors the water level of the equalization tank in real time as the liquid level of the wastewater treatment device. The level gauge and the flow sensor are communicatively connected to the central controller.

5. The intelligent wastewater separation and diversion system for dock flushing as described in claim 1, characterized in that, It also includes an early warning module; the early warning module is communicatively connected to the central controller; the central controller determines whether the treatment load of the sewage treatment device has reached the sewage treatment threshold. If the treatment load of the sewage treatment device has reached the sewage treatment threshold, it adjusts the diversion threshold according to the liquid level of the sewage treatment device and sends it to the rainwater control subsystem and the dock flushing sewage control subsystem.

6. The control method for the intelligent separation and diversion system for dock flushing wastewater according to any one of claims 1 to 5, characterized in that, include: Dynamic evaluation results of the wastewater treatment device are obtained by dynamically evaluating the liquid level and treatment load of the wastewater treatment device; dual-path collaborative control instructions are generated based on the dynamic evaluation results and weather forecast results and sent to the rainwater control subsystem and the dock flushing wastewater control subsystem; the dual-path collaborative control instructions include the water source diversion threshold and flow allocation value; Collect rainwater within the dock and monitor rainfall and water quality in real time. Generate rainwater flow direction control instructions based on rainfall, water quality, and diversion threshold. Guide rainwater into the rainwater discharge path according to the rainwater flow direction control instructions, or guide it into the sewage treatment device according to the rainwater flow distribution value. Collect wastewater from the dock and monitor its quality in real time; generate wastewater flow direction control instructions by comparing wastewater quality with a diversion threshold; and guide the dock wastewater to a diversion path or to a wastewater treatment device according to the wastewater flow distribution value based on the wastewater flow direction control instructions.

7. The control method according to claim 6, characterized in that, The wastewater and rainwater quality includes at least one of the following: suspended solids concentration, oil pollutant concentration, and chemical oxygen demand.

8. The control method according to claim 6, characterized in that, Based on dynamic assessment results and weather forecast results, dual-path coordinated control instructions are generated; specifically including: The wastewater diversion threshold is calculated based on the dynamic evaluation results of the wastewater treatment plant and weather forecast results, expressed by the following formula: ； ； ； In the formula, For dynamic evaluation results, and These are the weighting coefficients; Let be the liquid level of the wastewater treatment device at time t; This represents the highest liquid level in the wastewater treatment unit. The treatment load of the wastewater treatment plant at time t; This represents the maximum processing load of the wastewater treatment plant. For weather forecast assessment coefficients; For the confidence weight of weather forecasts, This is based on weather forecasts predicting precipitation for the next 24 hours. This is the baseline value for precipitation. and For adjustment coefficients, This is the initial value for the feed-off threshold; This is the threshold for discarding data. The rainwater and sewage flow distribution values ​​are calculated based on weather forecast assessment coefficients, expressed by the following formula: ； ； In the formula, Assigning values ​​to rainwater flow. Assigning values ​​to wastewater flow rate The amount of rainwater collected by the rainwater regulation subsystem per unit time. The amount of wastewater collected by the wastewater control subsystem for dock flushing; This refers to the available wastewater treatment capacity of the wastewater treatment plant.

9. The control method according to claim 6, characterized in that, Based on rainfall, rainwater quality, and runoff diversion thresholds, rainwater flow direction control instructions are generated, specifically including: If the rainwater quality is below the diversion threshold, the rainwater flow direction control instruction is to direct the rainwater into the rainwater discharge path; If the rainwater quality reaches the diversion threshold and the rainfall is ≤5mm / h, the rainwater flow direction control command is to divert all the rainwater collected by the rainwater regulation subsystem into the sewage treatment device. If the rainwater quality reaches the diversion threshold, and the rainfall is 5mm / h ≤ rainfall ≤ 20mm / h, the rainwater flow direction control instruction is to guide the rainwater into the sewage treatment device according to the rainwater flow distribution value. If the rainfall is greater than 20 mm / h, the rainwater flow control command is to first guide the rainwater into the sewage treatment device according to the rainwater flow distribution value. When the rainwater quality is less than the diversion threshold, the rainwater is guided into the rainwater discharge path. When the rainwater quality is less than the purification threshold, the rainwater regulation subsystem is controlled to collect the set capacity H of rainwater for dock washing.

10. The control method according to claim 6, characterized in that, According to the wastewater flow direction control command, the dock flushing wastewater is directed to the diversion path, or directed to the wastewater treatment device according to the wastewater flow rate allocation value; specifically including: If the wastewater quality index is lower than the diversion threshold, the wastewater from the dock flushing will be diverted to the diversion path. If the wastewater quality index exceeds the diversion threshold, and the rainfall is ≤20mm / h, the wastewater will be diverted to the wastewater treatment device according to the wastewater flow distribution value. When the dock flushing wastewater control subsystem collects the dock flushing wastewater to the maximum capacity, an early warning will be issued. If the rainfall is greater than 20 mm / h, shut down the dock flushing sewage control subsystem.

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