A method, system, and electronic equipment for controlling multi-point water inlet based on water quality and time.

Abstract

This invention provides a method, system, and electronic equipment for multi-point influent control based on water quality and time, relating to the field of wastewater treatment technology. The method includes: collecting drainage network design information within a preset area to identify separate and combined sewer systems; collecting real-time weather information to determine sunny and rainy weather modes; executing a complete treatment process through a biological treatment tank during sunny weather; and intercepting initial polluted rainwater from the separate sewer system, analyzing its flow and water quality together with polluted rainwater from the combined sewer system, and then connecting it to the biological treatment tank at different times and points through segmented influent analysis. This invention solves the technical problem that existing technologies, which typically employ full-process treatment or primary treatment followed by discharge, cannot adequately cope with surges in wastewater flow during the rainy season, thus affecting the overall operational stability and treatment effectiveness of the system.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a method, system, and electronic equipment for controlling multi-point influent based on water quality and time. Background Technology

[0002] Traditional processes typically involve primary treatment of rainwater before discharge, or mixing it with sewage for full-process treatment before discharge. The former has limited efficiency in removing pollutants from rainwater and could initially meet effluent quality requirements, but with increasingly stringent environmental regulations, it can no longer meet the demands for rainwater treatment. On the other hand, mixing rainwater with sewage for full-process treatment increases the load on the entire process structure and intensifies the impact load. Furthermore, because rainwater is relatively less concentrated, it dilutes the sewage, which is detrimental to efficient sewage treatment. Summary of the Invention

[0003] This application provides a method, system, and electronic device for controlling multi-point influent of different water quality and time, which aims to solve the technical problem that existing technologies typically adopt a full-process treatment method or a method of discharging after primary treatment, which leads to sewage treatment plants being unable to adequately cope with the surge in sewage flow caused by rainstorms during the rainy season, thereby affecting the overall operational stability and treatment effect of the system.

[0004] The first aspect of this application discloses a method for multi-point water inflow control based on water quality and time. The method includes: collecting drainage network design information within a preset area and identifying separate sewer systems and combined sewer systems; collecting real-time weather information and determining sunny and rainy weather modes for a biochemical tank, and outputting a target operating mode; when the target operating mode is sunny weather mode, performing a complete treatment process on the sewage from the separate sewer system and the combined sewer system through the biochemical tank; when the target operating mode is rainy weather mode, intercepting initial polluted rainwater from the rainwater pipe network in the separate sewer system, and performing flow and water quality analysis together with the polluted rainwater from the combined sewer system, and connecting the wastewater to the biochemical tank at different times and points through segmented water inflow analysis.

[0005] The second aspect of this application discloses a multi-point water inlet control system for different water quality and time periods. The system is used in the aforementioned multi-point water inlet control method for different water quality and time periods. The system includes: a pipe network identification module for collecting drainage pipe network design information within a preset area and identifying separate and combined sewer systems; a mode discrimination module for collecting real-time weather information, discriminating between sunny and rainy weather modes for the biochemical tank, and outputting a target operating mode; a treatment process execution module for performing a complete treatment process on the sewage from the separate and combined sewer systems through the biochemical tank when the target operating mode is sunny; and a water quality analysis module for initially intercepting polluted rainwater from the rainwater pipe network in the separate sewer system when the target operating mode is rainy, performing flow and water quality analysis together with the polluted rainwater from the combined sewer system, and connecting the sewage to the biochemical tank at different times and points through segmented inlet analysis.

[0006] The third aspect disclosed in this application provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the multi-point water intake control method of the first aspect.

[0007] One or more technical solutions provided in this application have at least the following beneficial effects:

[0008] By collecting drainage network design information, it is possible to identify and distinguish between separate and combined sewer systems, thus providing accurate network information for subsequent wastewater treatment. Since the characteristics of wastewater differ between separate and combined sewer systems, identifying the network type allows for more targeted allocation of wastewater flow and optimization of the treatment process. Furthermore, by collecting and analyzing real-time weather information, it is possible to determine whether a sunny or rainy weather mode has been entered. This mode identification can optimize the treatment process in the biological treatment tank, ensuring that the treatment method matches weather conditions and improving treatment efficiency, especially during rainy weather when the treatment of rainwater and wastewater requires... The differences are significant. In sunny weather mode, the flow rate and pollutant concentration of wastewater are relatively stable, and it can be treated according to the standard complete treatment process. This step ensures that the wastewater treatment efficiency is maximized in sunny weather mode. In rainy weather mode, due to the large fluctuations in rainwater flow and water quality, the flow rate and water quality of rainwater and polluted rainwater are monitored in real time. Through segmented influent analysis, it can be ensured that the water enters the final stage of the biological treatment tank at the appropriate time and flow rate. This strategy ensures that the system can effectively treat rainwater during heavy rainfall, avoid overloading the biological treatment tank, and improve the overall treatment efficiency.

[0009] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0010] Figure 1 This is a schematic flowchart of a multi-point water inlet control method based on different water quality and time periods, provided in an embodiment of this application.

[0011] Figure 2 This is a schematic diagram of a multi-point water inlet control system based on different water quality and time, provided in an embodiment of this application.

[0012] Figure 3 A schematic diagram of the structure of an exemplary electronic device provided in an embodiment of this application.

[0013] Explanation of reference numerals in the attached drawings: Pipeline identification module 10, Mode discrimination module 20, Processing flow execution module 30, Water quality analysis module 40, Bus 300, Receiver 301, Processor 302, Transmitter 303, Memory 304, Bus interface 305. Detailed Implementation

[0014] This application provides a method, system, and electronic device for controlling multi-point influent in a time- and quality-based manner. It solves the technical problem that existing technologies typically employ a full-process treatment method or a primary treatment followed by discharge, which leads to wastewater treatment plants being unable to adequately cope with the surge in wastewater flow caused by rainstorms during the rainy season, thereby affecting the overall operational stability and treatment effect of the system.

[0015] After introducing the basic principles of this application, various non-limiting embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0016] Example 1, as Figure 1 As shown in the figure, this application provides a method for controlling multi-point water inlet by quality and time, the method comprising:

[0017] Collect drainage network design information within the preset area to identify separate and combined sewer systems.

[0018] In a separate sewer system, rainwater and sewage are collected and discharged through different pipe systems. The advantage of a separate system is that sewage and rainwater do not mix, making water treatment easier. In a combined sewer system, sewage and rainwater are collected and discharged through the same pipe system. Combined sewer systems are typically used in the initial drainage design of cities, but their disadvantage is that they can cause overflow problems during heavy rain, as sewage and rainwater mix, increasing the difficulty of treatment. Drainage network design information, including pipe layout, flow distribution, and outlet locations, is collected within a pre-defined area using sensors, GIS systems, or manual data entry. Based on this information, it is possible to identify which networks are separate and which are combined sewer systems. Typically, the pipe type is indicated on the design drawings, or it can be determined by the function of the pipe structure. For example, separate sewer systems have separate rainwater discharge systems, while combined sewer systems function as a single integrated drainage system.

[0019] Collect real-time weather information, distinguish between sunny and rainy weather modes for the biochemical pool, and output the target operating mode.

[0020] Real-time weather information for a preset area is obtained through real-time meteorological monitoring stations or meteorological service interfaces. Data types include, but are not limited to, precipitation, temperature, humidity, and wind speed. Real-time weather information is crucial for the wastewater treatment process, especially in rainy weather mode, where the amount and quality of rainwater inflow may change, necessitating adjustments to treatment strategies based on weather conditions. When there is no or only a small amount of precipitation, the system enters sunny weather mode. In sunny weather mode, the load on the biological treatment tank is relatively light, and the wastewater quality is relatively stable, primarily focusing on routine wastewater treatment. When precipitation reaches a certain threshold, the system automatically enters rainy weather mode. The inflow of rainwater may increase the treatment load on the biological treatment tank, requiring adjustments to water volume and quality. Based on the mode determination results, the current target operating mode is output, serving as the basis for subsequent control and scheduling.

[0021] When the target operating mode is sunny mode, the sewage from the separate sewer network and the combined sewer network will undergo a complete treatment process through a biological treatment tank.

[0022] When the target operating mode is sunny day mode, it mainly treats daily sewage. The complete treatment process includes multiple biological treatment stages, such as anaerobic, anoxic, and aerobic zones. Specifically, in sunny day mode, sewage from the sewer system can be directly fed into the biological treatment tank for complete treatment. Sewage from the sewer system usually contains less rainwater, so the water quality is relatively stable, and the biological treatment tank can operate normally. The combined sewer system contains a mixture of sewage and rainwater. In sunny day mode, if the amount of rainwater input is small or does not enter the sewer system, sewage from the combined sewer system can also be fed into the biological treatment tank according to the normal treatment process. The complete treatment process includes: sewage entering the biological treatment tank first enters the anaerobic zone. In this zone, microorganisms degrade organic matter in the sewage through an anaerobic process. After passing through the anaerobic zone, the sewage enters the anoxic zone, where nitrogen in the water is mainly removed through denitrification. Finally, the sewage enters the aerobic zone. Under oxygenated conditions, microorganisms further decompose organic matter and remove pollutants such as ammonia nitrogen. The oxygen supply in the aerobic zone is critical, so it is maintained through aeration. Wastewater treated in a biological treatment pond will meet predetermined discharge standards and can be discharged into the environment or reused.

[0023] When the target operating mode is rainy weather mode, the rainwater pipe network in the sewer system is initially intercepted for polluted rainwater, and the flow and water quality are analyzed together with the polluted rainwater in the combined sewer system. Through segmented influent analysis, the water is connected to the biological treatment tank at different times and points.

[0024] During rainy weather, rainwater in the sewer system requires special treatment because it typically contains high levels of organic pollutants, such as carbonaceous pollutants, while nitrogen and phosphorus content is low. To effectively remove these pollutants, the rainwater needs to be guided to the aerobic zone of the biological treatment tank for further treatment. First, initial contaminated rainwater is intercepted in the sewer system. Real-time flow meters and water quality sensors, such as online water quality monitoring equipment, are used to detect the flow rate and water quality of rainwater in the sewer system and contaminated rainwater in the combined sewer system. Monitored water quality parameters include COD (Chemical Oxygen Demand), particulate matter content, and carbonaceous pollutant (such as organic matter) concentration. The data is transmitted to the central control system for real-time water quality assessment. Based on the water quality test results, the initially intercepted contaminated rainwater is combined with the contaminated rainwater from the combined sewer system and introduced into the biological treatment tank at different times and points. Segmented influent analysis precisely controls the amount and timing of rainwater delivery for each segment based on water quality changes, preventing excessive impact of water quality fluctuations on the operation of the biological treatment tank. The biological treatment tank adopts a three-stage series unit with an overall structure of AAO-AO-AO, where: section A is the anaerobic section; each section AO is a combined anoxic-aerobic section; and each section can be independently equipped with an inlet.

[0025] Furthermore, the initial interception of contaminated rainwater in the stormwater drainage system of the separate sewer system includes:

[0026] The rainwater discharged from the stormwater drainage network is tested for water quality, including the detection of large particulate pollutants and carbon source pollutants, and a time series of large particulate pollutant content is generated. The time series of large particulate pollutant content is compared with the preset rainwater interception threshold to intercept the initial polluted rainwater.

[0027] During rainy weather, rainwater quality varies significantly. Initially, rainwater typically contains high levels of suspended solids and pollutants. As rainfall increases, the pollutant content gradually decreases, becoming primarily organic matter. To effectively control and treat rainwater at these different stages, water quality testing is conducted first. Specifically, filters, sensors, and online water quality monitoring equipment are used to detect the content of large particulate pollutants, which typically originate from sediments and garbage in urban drainage systems. Chemical analysis or spectroscopic detection equipment is used to monitor the content of carbon source pollutants, such as organic matter, dissolved organic matter, and particulate organic matter. These carbon source pollutants are the main organic components of rainwater, especially prominent in the early stages of rainfall. Based on the water quality testing data, a time series of large particulate pollutant content is generated. This time series data reflects the changes in pollutant concentrations at different stages of rainfall, providing a basis for subsequent segmented treatment.

[0028] Based on experience or historical data, a preset rainwater interception threshold for large particulate pollutants is established. This threshold indicates that when the concentration of large particulate pollutants reaches a certain level, interception equipment needs to be activated to intercept a portion of the rainwater with high pollutant content from entering the treatment system. This preset threshold can be adjusted according to the emission requirements of different regions. When the detected concentration of large particulate pollutants exceeds the preset threshold in certain segments of the time series, it is identified as requiring interception operation to be initiated, intercepting the rainwater in that stage. Specifically, through interception equipment, the initial polluted rainwater is temporarily stored in a regulating tank or interception tank. The purpose is to isolate the initial polluted rainwater containing high concentrations of pollutants and prevent these pollutants from being directly discharged and causing pollution. Rainwater with pollutant content not exceeding the preset threshold is not allowed to enter the biological treatment tank for treatment, preventing a large amount of rainwater from entering the biological treatment tank and increasing its burden.

[0029] Furthermore, the flow rate and water quality of the initially intercepted rainwater and the contaminated rainwater from the combined sewer system are analyzed together. This is achieved through segmented influent analysis, with water entering the biological treatment tank at different times and points, including:

[0030] The maximum load index of each section of the biological treatment tank is collected, specifically the content of carbon source pollutants that can be treated in a single run when the aeration rate is adjusted to the maximum value. The initial intercepted rainwater and the polluted rainwater from the combined sewer system are temporarily stored in a regulating tank. The pollutant content, including carbon source pollutants and nitrogen and phosphorus pollutants, is detected at the inlet of the regulating tank. The biological treatment tank is connected to the regulating tank, which is used for short-term storage of the initial intercepted rainwater and the polluted rainwater from the combined sewer system after sedimentation treatment, controlling the amount of polluted rainwater entering the biological treatment tank. Based on the pollutant detection results, the polluted rainwater is analyzed in segments, and the polluted rainwater is released into the biological treatment tank in segments.

[0031] The maximum load index for each section of the biological treatment tank refers to the maximum amount of pollutants that the area can handle under maximum aeration. This index is a key parameter for evaluating the treatment capacity of the biological treatment tank, ensuring that the aerobic zone does not overload when treating rainwater, leading to system instability. Aeration rate is the main factor controlling the reaction rate in the aerobic zone, affecting the metabolic activity of microorganisms. By adjusting the aeration rate, the treatment capacity of the aerobic zone can be controlled. The maximum load index for each section of the biological treatment tank is determined through monitoring and experiments; specifically, it is the maximum amount of pollutants the biological treatment tank can handle in a single run under maximum aeration. This maximum load is usually derived from past experimental data and operational experience to ensure the stability of the treatment process.

[0032] The equalization tank is used for short-term storage of initially intercepted polluted rainwater and combined sewer systems. These water bodies typically contain high concentrations of pollutants, especially during rainy weather when the flow rate is high and the water mixes with sewage. Therefore, the equalization tank can temporarily store this water and control the inflow to each section of the biological treatment tank, preventing large amounts of rainwater from directly entering the biological treatment tank and overloading the water treatment system. Water quality testing is conducted at the equalization tank inlet, including carbon source pollutant testing and nitrogen and phosphorus pollutant testing. Carbon source pollutants are mainly organic matter, which affects the microbial degradation process in the biological treatment tank. Testing their concentration helps ensure that the treatment capacity of the biological treatment tank is not overloaded by excessive organic matter. Nitrogen and phosphorus pollutants usually come from urban rainwater, agricultural runoff, etc., and are the main cause of eutrophication. Testing these pollutants in the equalization tank helps determine whether special nitrogen and phosphorus removal measures are needed in subsequent treatment processes.

[0033] Based on the pollutant detection results in the equalization tank, polluted rainwater is segmented for analysis. This involves dividing the rainwater into multiple segments according to different stages of water quality and varying pollutant concentrations. The treatment methods and flow patterns for each segment differ to ensure optimal treatment effectiveness at each stage. Rainwater with lower pollutant concentrations, or that has already undergone pretreatment, can directly enter the latter two segments of the biological treatment tank (AO-AO segment), where the biological treatment tank effectively further degrades organic pollutants. Rainwater with higher pollutant concentrations, or requiring more extensive treatment, enters the first two segments of the biological treatment tank (AAO-AO segment). These areas provide a favorable environment for treating nitrogen and phosphorus pollutants and reduce the load of organic pollutants.

[0034] Furthermore, before discharging contaminated rainwater into the biological treatment pond in stages, the following steps are also included:

[0035] The system collects real-time sewage flow information from the sewage pipe network in the diversion system; based on the sewage flow information and polluted rainwater flow information, it adjusts the sewage inflow ratio with the goal of balancing the load of the biological treatment tank; and controls the sewage discharged from the sewage pipe network to undergo a complete treatment process through the biological treatment tank based on the sewage inflow ratio.

[0036] In rainy weather, the flow rates of sewage and rainwater in the sewer system will change. Typically, the rainwater flow rate increases rapidly with the increase of rainfall, while the sewage flow rate remains relatively stable. By installing flow meters and other equipment, the sewage flow rate information in the sewer system can be collected in real time. The flow meters can be installed at key locations in the sewer system to monitor the amount of sewage passing through the pipes in real time.

[0037] By combining real-time collected sewage flow and polluted rainwater flow information, the load status of the biological treatment tank is assessed based on the treatment capacity of the sewage treatment plant. When the water flow increases rapidly, the ratio of sewage and polluted rainwater entering the tank is adjusted. Specifically, during the rainy season or heavy rain, polluted rainwater is treated first, and the proportion of sewage entering the tank is reduced. This can alleviate the load on the biological treatment tank and prevent overload. By dynamically adjusting the ratio of sewage and polluted rainwater, the biological treatment tank is ensured to operate under optimal conditions, avoiding a decline in system performance due to excessive sewage.

[0038] Based on the adjusted wastewater inflow ratio, a portion of the wastewater is introduced into the biological treatment tank for treatment according to this ratio. The remaining wastewater (i.e., the portion exceeding the treatment capacity of the biological treatment tank) is temporarily stored through a bypass system. The bypass system acts as a buffer, storing wastewater that cannot be treated temporarily. This portion of wastewater is reintroduced into the biological treatment tank for treatment after the flow rate returns to normal. After the rainy season ends or the rainwater flow decreases and the wastewater flow returns to normal, the wastewater stored in the bypass system is reintroduced into the biological treatment tank for treatment according to the ratio, ensuring that the wastewater is completely treated.

[0039] Furthermore, based on the pollutant detection results, the polluted rainwater is analyzed in segments, and these segments are then released into the biological treatment pond, including:

[0040] Based on the pollutant detection results, the mixing ratio of rainwater and sewage is identified, and a mixing ratio time series is generated. The polluted rainwater flow is monitored in real time, and the impact of the polluted rainwater flow on the front end of the biological tank is analyzed. It is determined whether the impact exceeds a preset tolerance threshold. If so, a preset mixing ratio threshold is read, which serves as the boundary judgment condition for entering the biological tank. Based on the preset mixing ratio threshold, the polluted rainwater is segmented according to the mixing ratio time series, and a segmented release decision is generated. Based on the segmented release decision, the polluted rainwater is released into the biological tank in segments.

[0041] In combined sewer systems, the ratio of rainwater to wastewater flow is affected by rainfall and other factors. During periods of heavy rainfall, rainwater flow increases dramatically, causing changes in the mixing ratio of rainwater and wastewater. To effectively regulate the wastewater treatment process, it is necessary to monitor the pollutant content in polluted rainwater in real time and analyze the mixing ratio of polluted rainwater and wastewater. Specifically, online water quality monitoring instruments are installed to detect the pollutant content in polluted rainwater in real time, mainly including carbon source pollutant detection and nitrogen and phosphorus pollutant detection. Based on the pollutant content in the pollutant detection results, and according to the known characteristics of pollutants in polluted rainwater and wastewater, the mixing ratio of polluted rainwater and wastewater is calculated and identified. For example, polluted rainwater typically contains lower levels of organic matter and nitrogen and phosphorus, while wastewater contains higher levels of organic pollutants. By analyzing the water quality data, the mixing ratio at each moment is determined, generating a mixing ratio time series, which represents the change in the ratio of polluted rainwater to wastewater over different time periods.

[0042] The flow rate of polluted rainwater is monitored in real time by a flow meter, and its impact on the front end of the biological tank is analyzed. Increased flow rate means that more pollutants enter the system, especially during periods of heavy rainfall, when the sewage flow rate increases sharply, which may lead to a sudden increase in pollutant concentration. Based on the monitored polluted rainwater flow rate data, its impact on the front end of the biological tank is assessed. If the flow rate of polluted rainwater is too large, it may cause the treatment capacity of the biological tank to be overloaded, affecting the water quality to meet the standards.

[0043] The preset tolerance threshold is set based on historical experience and experimental data to determine whether the impact of polluted rainwater exceeds the treatment capacity of the biological treatment tank. When the impact exceeds the preset tolerance threshold, it is adjusted according to the preset mixing ratio threshold. This mixing ratio threshold determines the maximum proportion of polluted rainwater that each section of the biological treatment tank can treat. By adjusting this ratio, excessive sewage entering the biological treatment tank can be limited, thereby avoiding overloading of the biological treatment tank.

[0044] Based on the preset mixing ratio threshold, the polluted rainwater is segmented. Specifically, the preset mixing ratio threshold includes the mixing ratio threshold when each segment of the biological treatment tank is filled. If the mixing ratio at a certain time reaches or exceeds the preset mixing ratio threshold of a certain segment, such as the last two segments of the biological treatment tank, the polluted rainwater will be directly introduced into the last two segments of the biological treatment tank for treatment. This results in the segmentation. Based on the segmentation results, a segmented deployment decision is generated, that is, the treatment path of each segment of polluted rainwater is determined.

[0045] Based on the generated segmented delivery decisions, polluted rainwater is allocated to different areas of the biological treatment tank in segments. For example, some polluted rainwater first enters the first two segments of the biological treatment tank, namely the AAO-AO segment. This segmented delivery strategy ensures that each segment of polluted rainwater is treated in the most suitable area, thereby improving the efficiency of wastewater treatment and water quality.

[0046] Furthermore, it involves real-time detection of pollutant content in contaminated rainwater, identification of the mixing ratio of contaminated rainwater and sewage, and generation of a mixing ratio time series, including:

[0047] Historical records of wastewater pollutant content are collected to extract wastewater pollutant features and construct wastewater pollutant characteristics; historical records of rainwater pollutant content are collected to extract rainwater pollutant features and construct rainwater pollutant characteristics; the pollutant content in the polluted rainwater is matched and analyzed by combining the wastewater pollutant characteristics and the rainwater pollutant characteristics to complete the identification of the mixing ratio of polluted rainwater and wastewater.

[0048] The water quality characteristics of each sewage network change over time, especially with variations in seasons, weather conditions, and human activities. Pollutant levels in sewage also differ. To accurately identify and analyze pollutants in sewage, the first step is to extract pollutant characteristics from historical data. Specifically, historical records of sewage pollutant levels are collected, particularly data on major pollutants such as COD, suspended solids, nitrogen and phosphorus, and heavy metals. This data can be obtained through sensors or laboratory analysis. Statistical analysis of these historical pollutant levels extracts pollutant characteristics, including typical concentration ranges for various pollutants, temporal patterns of pollutant concentration changes, and fluctuation ranges and trends in pollutant levels.

[0049] The concentration of pollutants in rainwater is affected by factors such as precipitation intensity, urban surface water, and ground pollution. Therefore, the characteristics of rainwater pollutants differ from those of wastewater and require separate analysis. Historical records of rainwater pollutant content are collected, including concentrations of pollutants such as COD, suspended solids, nitrogen, phosphorus, and heavy metals. Statistical analysis of these historical records extracts the characteristics of rainwater pollutants, including: typical patterns of pollutant concentration changes, particularly at different stages of precipitation, such as initial and later polluted rainwater; the concentration range and fluctuations of major pollutants in rainwater, such as carbon source pollutants and suspended solids; and temporal variations of rainwater pollutants, such as concentration changes when rainwater mixes with wastewater.

[0050] Based on the characteristics of pollutants in wastewater and rainwater, the composition of pollutants in polluted rainwater is analyzed. For example, if the pollutant concentration in polluted rainwater is close to the historical rainwater concentration, it can be determined that rainwater is dominant in polluted rainwater; conversely, if the pollutant concentration in polluted rainwater is close to the historical wastewater concentration, it can be inferred that the proportion of wastewater in polluted rainwater is relatively high. Through matching analysis, the mixing ratio of polluted rainwater and wastewater is identified, showing the changes in the ratio of polluted rainwater to wastewater over different time periods.

[0051] Furthermore, based on the preset mixing ratio threshold as a standard, polluted rainwater is segmented according to the mixing ratio time sequence to generate segmented delivery decisions, including:

[0052] Based on the mixing ratio and timing, and according to the preset thresholds of each segment of the biochemical tank, polluted rainwater is segmented and connected to the biochemical tank at different points to generate the segmented delivery decision.

[0053] By analyzing the mixing ratios over time, the system identifies which time periods meet preset mixing ratio thresholds. Polluted rainwater from these periods can then be directly treated in the corresponding area of ​​the biological treatment pond. This dynamic identification enables precise segmented deployment decisions, ensuring that polluted rainwater from each time period receives the most suitable treatment path based on its pollutant characteristics.

[0054] In summary, the multi-point water inlet control method based on different water quality and time provided in this application has the following technical effects:

[0055] By collecting drainage network design information, it is possible to identify and distinguish between separate and combined sewer systems, thus providing accurate network information for subsequent wastewater treatment. The characteristics of wastewater differ between separate and combined sewer systems; therefore, identifying the network type allows for more targeted allocation of wastewater flow and optimization of the treatment process. Real-time weather information collection and analysis can determine whether a sunny or rainy weather mode has been entered. This mode identification can optimize the treatment process in the biological treatment tank, ensuring that the treatment method matches weather conditions and improving treatment efficiency, especially during rainy days when the treatment needs of rainwater and wastewater differ significantly. In sunny weather mode, the wastewater flow rate and... The pollutant concentration is relatively stable and can be treated according to the standard complete treatment process. This step ensures that the sewage treatment efficiency is maximized in the sunny weather mode. In the rainy weather mode, due to the large fluctuations in rainwater flow and water quality, the flow and water quality of polluted rainwater are monitored in real time. Through segmented influent analysis, it can be ensured that polluted rainwater enters each section of the biological treatment tank for treatment at the appropriate time and flow. The mixture of rainwater and sewage in the combined sewer system can also be analyzed according to real-time water quality and connected to the biological treatment tank at different times and points. This strategy ensures that the system can effectively treat polluted rainwater during heavy rainfall, avoid overloading the biological treatment tank, and improve the overall treatment efficiency.

[0056] Example 2, based on the same inventive concept as the multi-point water inlet control method with different water quality and time as described in the previous examples, such as... Figure 2 As shown in the figure, this application provides a multi-point water inlet control system with different water quality and time, the system comprising:

[0057] The pipeline identification module 10 is used to collect drainage pipeline design information within a preset area and identify separate and combined sewer systems. The mode discrimination module 20 is used to collect real-time weather information, distinguish between sunny and rainy weather modes for the biochemical tank, and output the target operating mode. The processing flow execution module 30 is used to perform a complete treatment process on the sewage from the separate and combined sewer systems through the biochemical tank when the target operating mode is sunny. The water quality analysis module 40 is used to intercept the initial polluted rainwater in the separate sewer system when the target operating mode is rainy, and perform flow and water quality analysis together with the polluted rainwater from the combined sewer system. Through segmented influent analysis, the water is connected to the biochemical tank at different times and points.

[0058] Furthermore, the water quality analysis module 40 is used to perform the following operation steps:

[0059] The rainwater discharged from the stormwater drainage network is tested for water quality, including the detection of large particulate pollutants and carbon source pollutants, and a time series of large particulate pollutant content is generated. The time series of large particulate pollutant content is compared with the preset rainwater interception threshold to intercept the initial polluted rainwater.

[0060] Furthermore, the water quality analysis module 40 is used to perform the following operation steps:

[0061] The maximum load index of each section of the biological treatment tank is collected, specifically the content of carbon source pollutants that can be treated in a single run when the aeration rate is adjusted to the maximum value. The initial intercepted rainwater and the polluted rainwater from the combined sewer system are temporarily stored in a regulating tank. The pollutant content, including carbon source pollutants and nitrogen and phosphorus pollutants, is detected at the inlet of the regulating tank. The biological treatment tank is connected to the regulating tank, which is used for short-term storage of the initial intercepted rainwater and the polluted rainwater from the combined sewer system after sedimentation treatment, controlling the amount of polluted rainwater entering each section of the biological treatment tank. Based on the pollutant detection results, the polluted rainwater is analyzed in segments, and the polluted rainwater is released into the biological treatment tank in segments.

[0062] Furthermore, the water quality analysis module 40 is used to perform the following operation steps:

[0063] The system collects real-time sewage flow information from the sewage pipe network in the diversion system; based on the sewage flow information and polluted rainwater flow information, it adjusts the sewage inflow ratio with the goal of balancing the load of the biological treatment tank; and controls the sewage discharged from the sewage pipe network to undergo a complete treatment process through the biological treatment tank based on the sewage inflow ratio.

[0064] Furthermore, the water quality analysis module 40 is used to perform the following operation steps:

[0065] Based on the pollutant detection results, the mixing ratio of rainwater and sewage is identified, and a mixing ratio time series is generated. The polluted rainwater flow rate is monitored in real time, and the impact of the polluted rainwater flow rate on the front section of the biological tank is analyzed. It is determined whether the impact exceeds a preset tolerance threshold. If so, a preset mixing ratio threshold is read. The preset mixing ratio threshold is used as the boundary judgment condition for each section entering the biological tank. Based on the preset mixing ratio threshold, the polluted rainwater is segmented according to the mixing ratio time series, and a segmented release decision is generated. Based on the segmented release decision, the polluted rainwater is released into the biological tank in segments.

[0066] Furthermore, the water quality analysis module 40 is used to perform the following operation steps:

[0067] Historical records of wastewater pollutant content are collected to extract wastewater pollutant features and construct wastewater pollutant characteristics; historical records of rainwater pollutant content are collected to extract rainwater pollutant features and construct rainwater pollutant characteristics; the pollutant content in the polluted rainwater is matched and analyzed by combining the wastewater pollutant characteristics and the rainwater pollutant characteristics to complete the identification of the mixing ratio of rainwater and wastewater.

[0068] Furthermore, the water quality analysis module 40 is used to perform the following operation steps:

[0069] Based on the mixing ratio and timing, and according to the preset thresholds of each segment of the biochemical tank, polluted rainwater is segmented and connected to the biochemical tank at different points to generate the segmented delivery decision.

[0070] Through the foregoing detailed description of a multi-point water intake control method based on different water quality and time, those skilled in the art can clearly understand the multi-point water intake control system based on different water quality and time in this embodiment. Since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and relevant parts can be referred to in the method section.

[0071] Example 3, as Figure 3 The diagram shown is a schematic representation of the structure of an exemplary electronic device of this application. Figure 3 In this document, the bus architecture is represented by bus 300. Bus 300 may include any number of interconnected buses and bridges, and bus 300 connects various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 305 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 302 is responsible for managing bus 300 and general processing, while memory 304 can be used to store data used by processor 302 during operation.

[0072] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling multi-point water inflow based on water quality and time, characterized in that, The method includes: Collect drainage network design information within a preset area to identify separate and combined sewer systems; Collect real-time weather information, distinguish between sunny and rainy weather modes for the biochemical pool, and output the target operating mode. When the target operating mode is sunny mode, the sewage from the diverter network and the combined sewer network will undergo a complete treatment process through the biological treatment tank. When the target operating mode is rainy weather mode, the rainwater pipe network in the sewer system is initially polluted and intercepted. The flow and water quality of the polluted rainwater in the combined sewer system are analyzed together. Through segmented water intake analysis, the water is connected to the biological treatment tank at different times and points. Initial contaminated rainwater interception in the stormwater drainage system of a separate sewer system includes: Water quality testing is performed on rainwater discharged from the stormwater drainage network, including detection of large particulate pollutants and carbon source pollutants, and a time series of large particulate pollutant content is generated. The concentration of large particulate pollutants over time is compared with the preset rainwater interception threshold to intercept initial polluted rainwater. Flow and water quality analysis were performed on the initial intercepted rainwater and the contaminated rainwater from the combined sewer system. This was done through segmented influent analysis, with water entering the biological treatment tank at different times and points, including: The maximum load index of each section of the biological treatment tank is collected. The maximum load index refers to the maximum amount of pollutants that the area can treat under the maximum aeration rate. The initial intercepted rainwater and the polluted rainwater from the combined sewer system are temporarily stored in a regulating tank. Pollutant content, including carbon source pollutant detection and nitrogen and phosphorus pollutant detection, is performed at the inlet of the regulating tank. The biological treatment tank is connected to the regulating tank. The regulating tank is used for short-term storage of the initial intercepted rainwater and the polluted rainwater from the combined sewer network after sedimentation treatment, and to control the amount of polluted rainwater entering the biological treatment tank. Based on the pollutant detection results, the polluted rainwater was analyzed in segments, and the polluted rainwater was then released into the biological treatment pond in segments.

2. The method for controlling multi-point water inlet based on water quality and time as described in claim 1, characterized in that, Before discharging contaminated rainwater into the biological treatment tank in stages, the process also includes: Real-time collection of sewage flow information discharged from the sewage pipe network in the diversion system; Based on sewage flow information and polluted rainwater flow information, the proportion of sewage entering the biological treatment tank is adjusted with the goal of balancing the load of the biological treatment tank. Based on the aforementioned wastewater entering the proportional control wastewater pipeline network, the wastewater discharged undergoes a complete treatment process through a biological treatment tank.

3. The method for controlling multi-point water inflow by quality and time as described in claim 1, characterized in that, Based on the pollutant detection results, the polluted rainwater was analyzed in segments, and the polluted rainwater was then released into the biological treatment tank in segments, including: Based on the pollutant detection results, the mixing ratio of polluted rainwater and sewage is identified, and a mixing ratio time series is generated; Real-time monitoring of polluted rainwater flow rate, analysis of the impact of polluted rainwater flow rate on the front section of the biological tank, determination of whether the impact exceeds the preset tolerance threshold, if so, reading the preset mixing ratio threshold, the preset mixing ratio threshold is the boundary judgment condition for each section entering the biological tank; Using the preset mixing ratio threshold as a standard, polluted rainwater is divided into segments according to the mixing ratio time sequence to generate segmented delivery decisions; Based on the segmented delivery decision, polluted rainwater is delivered to the biological treatment pond in segments and at different points.

4. The method for controlling multi-point water inlet based on water quality and time as described in claim 3, characterized in that, Real-time detection of pollutant content in polluted rainwater, identification of the mixing ratio of polluted rainwater and sewage, and generation of mixing ratio time series, including: Historical wastewater pollutant content records were collected to extract wastewater pollutant characteristics and construct wastewater pollutant characteristics. Historical records of rainwater pollutant content were collected to extract rainwater pollutant characteristics and construct rainwater pollutant characteristics. By combining the characteristics of the wastewater pollutants and the characteristics of the rainwater pollutants, the pollutant content in the polluted rainwater is matched and analyzed to identify the mixing ratio of polluted rainwater and wastewater.

5. The method for controlling multi-point water inlet based on water quality and time as described in claim 3, characterized in that, Using the preset mixing ratio threshold as a standard, polluted rainwater is segmented according to the mixing ratio time sequence to generate segmented delivery decisions, including: Based on the mixing ratio and timing, and according to the preset thresholds of each segment of the biochemical tank, polluted rainwater is segmented and connected to the biochemical tank at different points to generate the segmented delivery decision.

6. A multi-point water inlet control system with differentiated water quality and time, characterized in that, For implementing the multi-point water inlet control method according to any one of claims 1-5, the system comprises: The pipeline identification module is used to collect drainage pipeline design information within a preset area and identify separate and combined pipeline networks; The mode discrimination module is used to collect real-time weather information, distinguish between sunny and rainy weather modes for the biochemical pool, and output the target operating mode. The process execution module is used to perform a complete treatment process on the sewage from the diverter network and the combined sewer network through a biological treatment tank when the target operating mode is sunny mode. The water quality analysis module is used to intercept the initial polluted rainwater in the separate sewer system when the target operating mode is rainy. It performs flow and water quality analysis on the rainwater in the combined sewer system together with the polluted rainwater. The water is then connected to the biological treatment tank at different times and points through segmented influent analysis.

7. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, The processor executes the computer program to implement the steps of the multi-point water intake control method according to any one of claims 1 to 5.

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