River regulation method and device based on polluted water body data

Abstract

The invention provides a riverway treatment method and device based on polluted water data, and belongs to the technical field of sewage treatment.The riverway treatment method based on the polluted water data comprises the steps that pollution logs are generated by obtaining multi-source data, a pollution capacity account book is inquired, and a micro-stagnant storage area is constructed; according to the method, passive disaster bearing is converted into active pollution discharge, precious time and space are won for pollution control, cooperation of scheduling behaviors and natural laws is achieved by optimizing a power emission window, the economy of actions is ensured, the whole river regulation system is converted into a feedforward and self-adaptive closed-loop system from a scattered and lagged system, and the control efficiency of the river is improved. And the efficiency and economy of urban river network water environment management are improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a method and apparatus for river management based on polluted water body data. Background Technology

[0002] With the acceleration of urbanization, water environment problems in urban river networks are becoming increasingly prominent. Especially during rainfall, large amounts of initial rainwater carrying surface pollutants, as well as overflows from combined sewer systems in some old urban areas, can create high-concentration, sudden pollution shocks, causing river water quality to deteriorate rapidly in a short period of time, seriously affecting the urban aquatic ecological environment and the quality of life for residents.

[0003] Current river management largely adopts a reactive "pollute first, clean up later" approach. Emergency measures are typically only initiated after water quality monitoring data exceeds standards or sensory pollution (such as blackening, foul odor, and fish deaths) occurs. This lag means pollution has already spread, missing the optimal control window and significantly increasing the difficulty and cost of remediation. Traditional emergency response methods are relatively simple, mainly relying on large-scale flushing and dilution using water from upstream reservoirs or pumping stations. This method not only consumes a large amount of precious water resources and energy, but in complex river networks, if the flushing is not timed properly, it may not only be ineffective but could also cause pollutants to oscillate within the river network, or even flow back into tributaries, expanding the pollution area.

[0004] Therefore, there is an urgent need to develop a new method for the comprehensive treatment of urban river pollution that can be dynamically scheduled and efficiently utilize natural forces, in order to address the increasingly severe challenges to the urban water environment. Summary of the Invention

[0005] This invention provides a river management method and apparatus based on polluted water body data, which addresses the shortcomings of existing technologies in the inefficiency and economy of urban river network sewage treatment, thereby improving the efficiency and economy of urban river network water environment management.

[0006] This invention provides a river management method based on polluted water body data, comprising:

[0007] Acquire multi-source data, diagnose potential pollution events, and generate a pollution log characterizing the core pollutant composition for the potential pollution events based on a preset pollutant feature rule base; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data;

[0008] In response to the pollution log of the potential pollution event, based on the pollution capacity ledger of available hydraulic space and ecological purification capacity within the river network, one or more micro-retention areas for temporary accommodation of polluted water bodies are pre-constructed within the river network by scheduling hydraulic facilities before the pollution load arrives.

[0009] Based on hydrological forecast data, at least one dynamic discharge time window with conditions for sewage transport is determined within the future time period; the hydrological forecast data includes tidal forecast data;

[0010] Based on the pollution log and the pollution capacity ledger, the wastewater treatment trajectory of polluted water bodies stored in the micro-storage area in the river network is determined, and pulsed discharge is executed using a time-sequential gate group scheduling strategy within the dynamic discharge time window.

[0011] For example, a pollution log is a structured, machine-readable diagnostic report. It could be a JSON object, for instance. A micro-retention area is a functional body of water temporarily created through the scheduling of hydraulic facilities, rather than a permanent structure. For example, when the system predicts an upstream pollution plume, it will close gate G2 downstream of river segment A in advance and appropriately adjust the opening of gate G1 upstream, thereby creating a temporary reservoir with a defined capacity between G1 and G2. After the pollution event ends, the area returns to a normal river channel.

[0012] In this embodiment, by acquiring multi-source data to generate pollution logs, querying pollution capacity ledgers, and constructing micro-storage zones, a shift from passive disaster acceptance to proactive pollution discharge is achieved, winning valuable time and space for pollution control. By optimizing the power emission window, the coordination between scheduling behavior and natural laws is realized, ensuring the economy of action. This transforms the entire river management system from a decentralized and lagging system into a feedforward and adaptive closed-loop system, improving the efficiency and economy of urban river network water environment management.

[0013] According to the present invention, a river management method based on polluted water body data, wherein determining the wastewater treatment trajectory of polluted water bodies stored in micro-retention areas within the river network based on the pollution log and the pollution capacity ledger includes:

[0014] Based on the pollution log and the pollution capacity ledger, the discharge trajectory of polluted water bodies stored in each sub-zone of the micro-storage area is determined.

[0015] The discharge trajectories include: a trajectory that guides polluted water from the first sub-zone to an ecological buffer zone for retention and degradation; a trajectory that guides polluted water from the second sub-zone to a sewage treatment plant for treatment; and a tidal discharge trajectory that directly discharges polluted water from the third sub-zone into the open sea in a pulse manner.

[0016] For example, a sub-zone is a logical concept, rather than a pre-existing physical area. In wastewater treatment, the water stored in the micro-retention zone is virtually divided into different parts according to its final disposal destination.

[0017] For example, after the system makes a decision, the 2,000 cubic meters of water that needs to be sent to the sewage treatment plant in the micro-retention area can be defined as the second sub-zone, and the 5,000 cubic meters of water that needs to be sent to the ecological buffer zone can be defined as the first sub-zone.

[0018] In this embodiment, by logically dividing the water body within the micro-retention zone into sub-zones and matching them with different discharge trajectories, the resource misallocation problem caused by treating all polluted water bodies uniformly can be effectively avoided. A more refined diversion strategy constitutes a diversified treatment decision.

[0019] For example, when pollution logs show high water toxicity, the proportion of the second sub-zone (the pipeline trajectory) will increase; when pollution logs show good biodegradability of the water and sufficient ecological buffer capacity, the proportion of the first sub-zone (the ecological degradation trajectory) will increase. This dynamic diversion based on water quality-capacity dual matching ensures that high-risk pollutants receive the most professional treatment, while medium- and low-risk pollutants receive the most economical treatment, maximizing the overall treatment efficiency of the system.

[0020] According to a river management method based on polluted water body data provided by the present invention, wherein the wastewater treatment plant has sludge treatment capacity, and the method for determining the wastewater disposal trajectory of polluted water bodies stored in micro-storage zones in the river network based on the pollution log and the pollution capacity ledger, the method further includes:

[0021] The area containing the upper layer of clear water formed in the retention zone is identified as the third sub-zone, and the area containing the water layer adjacent to the lower layer of high-concentration polluted sludge is identified as the second sub-zone. The water body corresponding to the upper layer of clear water and the water layer adjacent to the lower layer of high-concentration polluted sludge are obtained by adding flocculants into the micro-retention zone.

[0022] Through surface hydraulic facilities, the upper layer of clean water in the third sub-zone is pulsedly discharged within the power discharge window, and through bottom sludge discharge facilities, the water layer adjacent to the lower high-concentration polluted sludge layer in the second sub-zone is guided to the sewage treatment plant for treatment.

[0023] For example, environmentally friendly polymer flocculants or bioflocculants can be added to the micro-retention area using drones or shore-based automated dosing devices. These agents can agglomerate fine pollutants in the water, which are in dissolved or colloidal state, into larger flocs, which then settle rapidly under gravity.

[0024] After flocculation and sedimentation, the micro-retention zone naturally stratifies physically. The upper layer is a relatively clear water body where pollutants have been largely removed; the lower layer is a small layer of mud or a layer of highly turbid water with extremely high pollutant concentration.

[0025] Surface hydraulic structures and bottom sludge discharge facilities form the hardware foundation for stratified treatment. For example, a sluice gate can have an overflow weir at the top (surface structure) and a sludge discharge gate at the bottom (bottom structure).

[0026] In this embodiment, by actively introducing chemical-physical methods to alter the physical form of pollutants, a large amount of relatively clear water can be formed. This water, due to its good flowability, can better form a water front with strong flushing power during sewage discharge. Furthermore, this water flow can be discharged through tidal action, greatly reducing the amount of water that needs to enter the sewage treatment plant; only bottom sludge and high-concentration wastewater need to be transported, thus saving municipal facilities significant treatment load, energy consumption, and costs.

[0027] According to a river management method based on polluted water data provided by the present invention, the step of generating a pollution log characterizing the composition of core pollutants for the potential pollution event includes:

[0028] Based on the multi-source data, the characteristic ratios or change gradients among multiple key water quality indicators are calculated and compared with the thresholds in the feature rule base to classify the events into corresponding pollution logs. The pollution logs belong to at least one of organic-dominated, nitrogen-phosphorus-dominated, or high-turbidity-dominated types.

[0029] For example, feature vectors can be constructed by calculating indicators in the fields of water treatment and water quality analysis, such as the COD (Chemical Oxygen Demand) / TN (Total Nitrogen) ratio, the BOD (Biochemical Oxygen Demand) / COD ratio, and the rate of change of turbidity / TSS (Total Suspended Solids), thereby accurately determining the type of pollution.

[0030] In this embodiment, accurate diagnosis of polluted water data ensures the correctness of decision-making.

[0031] According to the present invention, a river management method based on polluted water data is provided, wherein the dynamic discharge time window is the time period in which the ebb tide hydraulic gradient is higher than a first preset threshold and the predicted salinity of the open sea is lower than a second preset threshold.

[0032] In this embodiment, the ebb tide hydraulic gradient ensures the driving force of the discharge, while the low salinity of the open sea water ensures the environmental compatibility of the discharge. This dual standard ensures that the discharge is physically the most efficient and ecologically the least impactful.

[0033] According to the present invention, a river management method based on polluted water data, wherein the pulsed discharge is executed using a time-series gate group scheduling strategy, comprising:

[0034] Open the control gate at the downstream end of the micro-retention zone to release the high-concentration pollution plume from the front.

[0035] Based on a preset time delay, other coordinated gates in the river network are opened sequentially from upstream to downstream to converge water flow and form a concentrated flow.

[0036] In this embodiment, opening the downstream side first and then the upstream side sequentially achieves the superposition of hydraulic waves, which can concentrate the dispersed water flow energy into a narrow wavefront. This precise scheduling strategy can generate a large kinetic energy output based on the existing water volume, realizing the overall displacement of pollutants rather than dilution along the way, thus maximizing the utilization efficiency of tidal energy.

[0037] According to a river management method based on polluted water data provided by the present invention, wherein pulsed discharge is executed using a time-sequential gate group scheduling strategy within the dynamic discharge time window, the method further includes:

[0038] Within the power emission time window, the hydraulic parameters of the pulse head are monitored in real time.

[0039] The sewage discharge efficiency value of the pulse head is determined based on the hydraulic parameters; the sewage discharge efficiency value is used to characterize the sewage discharge efficiency corresponding to the energy change rate of the water flow or the flow velocity.

[0040] If the sewage discharge efficiency value is lower than the preset third threshold, the pumping station system in the river network is activated to provide dynamic compensation and enhancement for the pulse head.

[0041] For example, the sewage discharge efficiency value is a dimensionless value that can be calculated comprehensively based on parameters such as flow velocity and head height.

[0042] In this embodiment, through a series of actions such as real-time monitoring, efficiency calculation, threshold comparison, and compensation activation, the sewage discharge capacity can be guaranteed even under non-ideal operating conditions (such as weaker-than-expected tidal power).

[0043] According to a river management method based on polluted water data provided by the present invention, wherein pulsed discharge is executed using a time-sequential gate group scheduling strategy within the dynamic discharge time window, the method further includes:

[0044] Within the aforementioned power emission time window, the electrical conductivity or tidal level of the downstream river network is monitored in real time.

[0045] Based on the electrical conductivity or tidal level, determine whether there is a risk of seawater backflow within the river network;

[0046] In cases where there is a risk of backflow, close the sluice gates on the river network near the open sea.

[0047] For example, detecting an abnormally high conductivity indicates that seawater is invading.

[0048] In this embodiment, when a risk of backflow that may lead to pollution recirculation is detected, it is necessary to close the gate, which can effectively prevent seawater backflow.

[0049] The present invention also provides a river management device based on polluted water data, comprising:

[0050] The acquisition module is used to acquire multi-source data, diagnose potential pollution events, and generate a pollution log characterizing the core pollutants for the potential pollution events based on a preset pollutant feature rule base; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data.

[0051] The response module is used to respond to the pollution log of the potential pollution event, based on the pollution capacity ledger of available hydraulic space and ecological purification capacity in the river network, and to pre-construct one or more micro-storage areas in the river network to temporarily accommodate polluted water bodies by scheduling hydraulic facilities before the pollution load arrives.

[0052] The first processing module is used to determine, based on hydrological forecast data, at least one dynamic discharge time window within a future time period that meets the conditions for sewage transport; the hydrological forecast data includes tidal forecast data;

[0053] The second processing module is used to determine the sewage treatment trajectory of polluted water bodies stored in the micro-storage area in the river network based on the pollution log and the pollution capacity ledger, and to execute pulsed discharge using a time-sequential gate group scheduling strategy within the power discharge time window.

[0054] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the river management method based on polluted water data as described above.

[0055] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the river management method based on polluted water data as described above.

[0056] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the river management method based on polluted water body data as described above.

[0057] The river management method and apparatus based on polluted water data provided by this invention generate pollution logs by acquiring multi-source data, querying pollution capacity ledgers, and constructing micro-retention zones. This enables a shift from passive disaster acceptance to proactive pollution discharge, gaining valuable time and space for pollution control. By optimizing the dynamic emission window, it achieves coordination between scheduling behavior and natural laws, ensuring the economy of action. This transforms the entire river management system from a decentralized and lagging system into a feedforward and adaptive closed-loop system, improving the efficiency and economy of urban river network water environment management. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0059] Figure 1 This is one of the flowcharts of the river management method based on polluted water body data provided by the present invention;

[0060] Figure 2 This is the second flowchart of the river management method based on polluted water body data provided by the present invention;

[0061] Figure 3 This is a schematic diagram of the river management device based on polluted water body data provided by the present invention;

[0062] Figure 4 is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0064] The following is combined with Figure 1 Figure 4 illustrates the river management method and apparatus based on polluted water body data of the present invention.

[0065] The core inventive concept of this invention lies in transforming the traditional, experience-based, and slow-responding river pollution control model into a model based on the fusion of multi-source data, including polluted water data, to maximize the overall system efficiency of urban river network systems in response to sudden pollution events.

[0066] To realize the above concept, the present invention first accurately identifies the nature of pollution events through diagnostic event prediction technology, then actively constructs micro-stagnation zones through feedforward resource scheduling technology; then finds the most favorable time window for natural dynamic emission, and uses trajectory guidance and pulse execution to remove pollutants in the most optimized and lowest cost way.

[0067] As shown in Figure 1, the river management method based on polluted water data in this embodiment of the invention may mainly include steps 110, 120, and 130.

[0068] Step 110: Obtain multi-source data and generate a pollution log.

[0069] In one specific embodiment of the present invention, this step is performed by a module deployed on a cloud or local server.

[0070] It can continuously aggregate heterogeneous data from different departments and systems through standardized API interfaces, such as weather forecasts, hydrological forecasts, and real-time water quality data.

[0071] Meteorological forecast data includes minute-level and kilometer-level grid rainfall forecast data acquired from meteorological departments, which can cover the intensity, duration and spatial distribution of rainfall in the next 1-24 hours.

[0072] Hydrological forecast data includes hourly tide level forecasts for the downstream boundary of the target river network for the next 24-72 hours, obtained from hydrological departments or calculated using built-in tidal models.

[0073] Real-time water quality data includes data acquired from IoT water quality sensors deployed at key sections of the river network, tributary inlets, and overflow outlets of combined sewer systems. The parameters include at least one of the following: pH, dissolved oxygen, conductivity, turbidity, chemical oxygen demand, and ammonia nitrogen.

[0074] Understandably, this data can be fed into a real-time database for cleaning, alignment, and storage, thereby providing a high-quality data foundation for subsequent diagnostics.

[0075] If the data meets the preset event triggering conditions, such as the predicted rainfall intensity exceeding 10 mm / h and the water level sensor reading at the overflow outlet of the combined sewer system exceeding the overflow threshold, there may be a potential pollution event.

[0076] Understandably, diagnosis can be performed based on a pollutant feature rule base. This rule base can use threshold judgment methods to set rule thresholds for various events. Of course, in some embodiments, the pollutant feature rule base can also be a model that includes expert knowledge, historical data statistical models, machine learning classifiers, etc. After the diagnosis is completed, a standardized, machine-readable pollution log can be output. In one embodiment, it is a JSON object.

[0077] Step 120: Respond to the pollution log and construct a micro-storage zone.

[0078] It should be noted that a pollution capacity ledger needs to be constructed for the river network. This pollution capacity ledger is a dynamic database that is updated in real time to record the pollution treatment capacity of the river network.

[0079] The pollution capacity ledger can record at least the water space resources, ecological purification capacity, and municipal treatment capacity.

[0080] Hydropower space resources refer to the current water level, reservoir capacity, and available storage capacity that can be additionally freed up through gate scheduling in each river section.

[0081] Ecological purification capacity is the ability to estimate the daily reduction load of remaining organic matter and nutrients in a designated ecological buffer zone, such as an artificial wetland or ecological revetment area, based on current water temperature, dissolved oxygen, historical data, etc.

[0082] Municipal treatment capacity is determined by linking with the city's wastewater dispatch system to obtain real-time inflow and treatment load status of connected wastewater treatment plants, and to calculate the additional instantaneous inflow and emergency treatment load margin that can be accepted.

[0083] Upon receiving the pollution log generated in step 110, the pollution capacity ledger can be queried immediately. The system's goal is to construct a temporary storage space with sufficient capacity to accommodate the predicted total volume of pollution before the pollution load arrives, at the lowest possible hydraulic scheduling cost.

[0084] Understandably, assuming the pollution source is located upstream of the river network, the pollution plume is expected to reach a key confluence in the middle reaches within two hours. The system detects that the current water level in section A downstream of this confluence is low, and that the downstream hydraulic gate G-A3 has precise control capabilities. The system will immediately issue an instruction to gradually close gate G-A3 to 10% of its opening within 30 minutes. In this way, before the pollution plume arrives, the water level in section A will rise moderately, thus proactively and smoothly forming a functional micro-retention area. This feedforward measure avoids the drastic water level fluctuations and upstream flooding risks that would occur if the gate were closed after the pollution had arrived.

[0085] Step 130: Determine the time window for power emission, decide on the emission trajectory, and execute pulse emission.

[0086] In tidal river networks, tides are a powerful natural force, therefore an optimal discharge time, or dynamic discharge window, needs to be calculated based on hydrological forecast data. This time can be during low tide, utilizing the natural pull of the receding tide towards the open sea to push the wastewater out, greatly reducing energy consumption. During discharge, the downstream external water body (such as the sea or a large river) should be in a state of good diffusion conditions and strong dilution capacity (such as spring tides and rapid currents).

[0087] The time window for dynamic emission is the period during which the hydraulic gradient of low tide is higher than the first preset threshold and the predicted salinity of the outer sea is lower than the second preset threshold.

[0088] The hydraulic gradient, or water level difference per unit distance, ensures that there is sufficient gravitational potential energy as the initial driving force during discharge, ensuring that pollutants can be effectively transported instead of lingering near the estuary.

[0089] The predicted salinity requirements for open sea water are to avoid the brine wedge effect. If freshwater is discharged into stagnant, high-salinity seawater, the freshwater will float on the surface due to its low density, hindering pollutant diffusion. Discharge during a window of lower salinity in the open sea can promote rapid mixing and long-distance transport of pollutants. The first and second preset thresholds can be set according to actual conditions and are not restricted here.

[0090] In this embodiment, the ebb tide hydraulic gradient ensures the driving force of the discharge, while the low salinity of the open sea water ensures the environmental compatibility of the discharge. This dual standard ensures that the discharge is physically the most efficient and ecologically the least impactful.

[0091] Based on pollution logs and capacity ledgers, the most reasonable wastewater treatment trajectory can be planned for each micro-retention area.

[0092] It should be noted that during discharge, it is not simply a matter of opening all the gates at the same time, but rather a matter of opening and closing different gates upstream and downstream in a precise time sequence, thereby realizing a time-sequential gate group scheduling strategy.

[0093] According to the dispatching instructions, the gate can be opened and closed quickly, with a large flow rate and a short time, forming concentrated pulses of water to push the sewage mass out, thereby achieving better discharge efficiency, making better use of tidal power, and having a smaller pollution impact on downstream areas.

[0094] According to the present invention, a river management method based on polluted water data is used to perform pulsed discharge by employing a time-sequential gate group scheduling strategy. The method includes: opening the control gate at the downstream end of the micro-retention area to release the high-concentration pollution cloud at the forefront; and opening other coordinating gates in the river network sequentially from upstream to downstream based on a preset time delay to converge the water flow and form a dynamically concentrated water flow.

[0095] In this embodiment, opening the downstream first and then opening the upstream in sequence can achieve the superposition of hydraulic waves, which can concentrate the dispersed water flow energy into a narrow wavefront, thereby generating a large kinetic energy output based on the existing water volume. This achieves the overall displacement of pollutants rather than dilution along the way, thus maximizing the utilization efficiency of tidal energy.

[0096] It should be noted that the opening time delay of sluice gates in different river channels can be calculated based on the river channel geometry, roughness, and desired waveform, thereby allowing the water released upstream to catch up with and superimpose on the water front that has already begun to flow downstream, thus concentrating the potential energy of the water into a high and steep kinetic energy wave front.

[0097] In some possible implementations, the river management method based on polluted water body data in this embodiment of the invention mainly includes steps 210, 220, 230 and 240.

[0098] Step 210: Obtain multi-source data, diagnose potential pollution events, and generate a pollution log characterizing the core pollutant composition for potential pollution events based on a preset pollutant feature rule base.

[0099] Step 220: In response to the pollution log of potential pollution events, based on the pollution capacity ledger of available hydraulic space and ecological purification capacity within the river network, one or more micro-retention areas are pre-constructed within the river network to temporarily accommodate polluted water bodies by scheduling hydraulic facilities before the pollution load arrives.

[0100] Step 230: Based on hydrological forecast data, determine at least one dynamic discharge time window within the future time period that meets the conditions for sewage transport.

[0101] Step 240: Based on the pollution log and pollution capacity ledger, determine the sewage treatment trajectory of polluted water bodies stored in the micro-storage area in the river network, and execute pulsed discharge using a time-sequential gate group scheduling strategy within the power discharge time window.

[0102] Multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data; hydrological forecast data includes tidal forecast data.

[0103] It should be noted that the specific implementation of steps 210-240 can refer to the specific implementation process of steps 110-130 in the aforementioned embodiments.

[0104] The river management method based on polluted water body data provided in this embodiment of the invention generates pollution logs by acquiring multi-source data, queries pollution capacity ledgers, and constructs micro-retention areas. This realizes a shift from passive disaster acceptance to proactive pollution discharge, winning valuable time and space for pollution control. By optimizing the dynamic emission window, it achieves coordination between scheduling behavior and natural laws, ensuring the economy of action. This transforms the entire river management system from a decentralized and lagging system into a feedforward and adaptive closed-loop system, improving the efficiency and economy of urban river network water environment management.

[0105] In some embodiments, the retained polluted water can be discharged in a categorized manner, which can be logically divided at the decision-making level and the optimal treatment path can be matched for different parts.

[0106] Different sub-zones can be set up in the micro-retention area. A sub-zone is a logical label, rather than a specific area separated by water conservancy facilities.

[0107] Specifically, a certain micro-retention area retained 85,000 cubic meters of organic-dominated polluted water. A system query of the pollution capacity ledger revealed that the adjacent ecological wetland still had a chemical oxygen demand reduction capacity of 500 kg on that day, which could treat approximately 40,000 cubic meters of wastewater of this concentration; at the same time, the wastewater treatment plant could accept 20,000 cubic meters of emergency wastewater during the off-peak hours at night.

[0108] Therefore, 40,000 cubic meters of water can be designated as the first sub-zone, and a trajectory can be planned to introduce it into the ecological wetland by scheduling the G-B1 gate. 20,000 cubic meters of water can be designated as the second sub-zone, and a trajectory can be planned to transport it to the wastewater treatment plant by scheduling the G-C2 gate and the P-C1 pumping station. The remaining 25,000 cubic meters of water can be designated as the third sub-zone, and a plan can be made to directly discharge it when the optimal tidal window arrives.

[0109] Understandably, by logically dividing the water bodies within the micro-retention zone into sub-zones and matching them with different discharge trajectories, the resource misallocation problem caused by treating all polluted water bodies uniformly can be effectively avoided. A more refined diversion strategy constitutes a multi-faceted treatment decision, breaking down a single, macro-level treatment problem into multiple parallel sub-tasks precisely matched with available resources. This avoids wasting valuable wastewater treatment capacity on low-concentration wastewater and also prevents high-concentration wastewater from directly impacting fragile ecosystems.

[0110] For example, when pollution logs show high water toxicity, the proportion of the second sub-zone (the pipeline trajectory) will increase; when pollution logs show good biodegradability of the water and sufficient ecological buffer capacity, the proportion of the first sub-zone (the ecological degradation trajectory) will increase. This dynamic diversion based on water quality-capacity dual matching ensures that high-risk pollutants receive the most professional treatment, while medium- and low-risk pollutants receive the most economical treatment, maximizing the overall treatment efficiency of the system.

[0111] Even for organic-dominated wastewater, if the ecological buffer zone is saturated, the system will reduce the proportion of the first sub-zone and increase the proportion of the second or third sub-zone (direct discharge).

[0112] In some possible implementations, based on pollution logs and pollution capacity ledgers, the wastewater treatment trajectory of polluted water bodies stored in micro-retention areas within the river network is determined. This includes: based on pollution logs and pollution capacity ledgers, determining the discharge trajectory of polluted water bodies stored in each sub-zone of the micro-retention area; the discharge trajectory includes: the trajectory of guiding polluted water bodies in the first sub-zone to an ecological buffer zone for retention and degradation; the trajectory of guiding polluted water bodies in the second sub-zone to a wastewater treatment plant for treatment; and the tidal discharge trajectory of directly discharging polluted water bodies in the third sub-zone into the open sea in a pulse manner.

[0113] In some embodiments, chemical-physical pretreatment can be implemented in the river channel through certain means to transform homogeneous liquid pollution into stratified wastewater that is easy to separate and dispose of, thereby achieving better zoning.

[0114] Once the polluted water body is completely impounded, the decision-making module issues instructions. An automated dosing system or drone deployed on shore, based on the water volume in the micro-impoundment zone and the pollutant concentration in the pollution log, precisely calculates the required dosage of flocculant, such as polyaluminum chloride (PAC) or polyacrylamide (PAM).

[0115] The addition process can be either uniform spraying or dripping at the inlet, utilizing the kinetic energy of the incoming flow for mixing. The aim is to ensure that the reagent comes into full contact with the tiny suspended particles, colloids, and some dissolved macromolecular organic matter in the water, resulting in charge neutralization and adsorption bridging, forming visible flocs.

[0116] After addition, the water in the micro-retention area will remain still or flow very slowly for a period of time, such as 30-60 minutes, allowing the flocs to settle under the influence of gravity.

[0117] Specifically, during this process, online turbidity sensors or small underwater camera arrays deployed at different depths monitor the changes in turbidity across the vertical profile of the water body in real time. For example, when monitoring data shows that the turbidity of the upper 80% of the water body has decreased from the initial 500 NTU to below 50 NTU, while the turbidity of the bottom 20% of the water body increases sharply, physical stratification is determined to be successful. At this point, the system automatically identifies the upper clear water zone as the third sub-zone and the lower mud layer zone as the second sub-zone.

[0118] At the selected power discharge window, the downstream sluice gate equipped with surface facilities can be opened to allow the upper layer of clean water to flow out preferentially and quickly. When the clean water discharge is completed or nearly completed, the system closes the surface facilities and then opens the bottom sludge discharge facilities of the sluice gate, such as the bottom sludge discharge gate and dedicated sludge discharge pipeline, and links with the pumping station to accurately pump the small but highly concentrated polluted sludge layer that has settled at the bottom to the wastewater treatment plant.

[0119] Before deciding to adopt this plan, it is necessary to check whether the tidal forecast indicates that the future ebb tide can effectively discharge sewage, and to confirm with the sewage treatment plant that its sludge treatment system has the capacity to accept additional high-solids-content water.

[0120] In other words, in some possible implementations, the wastewater treatment plant has sludge treatment capacity. Based on pollution logs and pollution capacity ledgers, the wastewater treatment trajectory of polluted water bodies stored in the micro-retention zone in the river network is determined. This also includes: identifying the area where the upper layer of clear water formed in the retention zone is located as the third sub-zone, and identifying the area where the water layer adjacent to the lower layer of high-concentration polluted sludge is located as the second sub-zone; the water body corresponding to the upper layer of clear water and the water layer adjacent to the lower layer of high-concentration polluted sludge are obtained by adding flocculants to the micro-retention zone; through surface hydraulic facilities, the upper layer of clear water in the third sub-zone is pulsedly discharged within the power discharge window, and through bottom sludge discharge facilities, the water layer adjacent to the lower layer of high-concentration polluted sludge in the second sub-zone is guided to the wastewater treatment plant for connection and treatment.

[0121] In some embodiments, environmentally friendly polymer flocculants or bioflocculants can be added to the micro-retention zone using drones or shore-based automated dosing devices. These agents can agglomerate small, dissolved, colloidal pollutants in the water into larger flocs, which then settle rapidly under gravity. After flocculation and sedimentation, the micro-retention zone naturally stratifies physically. The upper layer is relatively clear water with a large amount of pollutants removed; the lower layer is a small-volume but highly concentrated layer of mud or high-turbidity water.

[0122] Surface hydraulic structures and bottom sludge discharge facilities form the hardware foundation for stratified treatment. For example, a sluice gate can have an overflow weir at the top (surface structure) and a sludge discharge gate at the bottom (bottom structure).

[0123] In this embodiment, the active intervention of adding flocculants provides a clear and reliable operating water body for subsequent differentiated treatment. The final stratified discharge allows the vast majority of the water (clean water) to be removed at extremely low cost, and better facilitates flushing and flow, which is beneficial for wastewater discharge. Only a very small portion of the sludge layer, which concentrates most of the pollutants, requires high-cost municipal facilities for treatment.

[0124] Understandably, using relatively clear upper-layer water for pulse discharge results in lower viscosity, making it easier to form a concentrated, efficient pulse head. Furthermore, the good flow of some of this water during discharge allows it to better form a water front with strong scouring capabilities. This water flow is discharged through tidal action, significantly reducing the amount of water that needs to enter the wastewater treatment plant. Only bottom sludge and high-concentration wastewater need to be transported, thus saving municipal facilities substantial treatment load, energy consumption, and costs.

[0125] In some embodiments, in-depth diagnostics can be achieved by calculating characteristic ratios and gradients of change. Examples include the ratio of chemical oxygen demand to total nitrogen, the ratio of biochemical oxygen demand to chemical oxygen demand, and gradients of change.

[0126] The ratio of chemical oxygen demand (COD) to total nitrogen (TN) in urban domestic sewage is typically between 8 and 12. If the ratio is found to be significantly lower than 3-5, the rule base will determine that industrial wastewater with high nitrogen content, such as fertilizer or pharmaceutical waste, may have been mixed in. This determination will be recorded in the pollution log, indicating that subsequent treatment should pay special attention to ammonia nitrogen toxicity.

[0127] A high ratio of biochemical oxygen demand (BOD) to chemical oxygen demand (COD) in fresh domestic sewage indicates good biodegradability. A low ratio suggests that the sewage has undergone anaerobic fermentation or contains recalcitrant industrial components, making it unsuitable for storage and degradation using ecological buffer zones.

[0128] A change gradient can be a change gradient in pH value. If the pH value drops by more than 2 units in a short period of time, it may indicate an acidic wastewater discharge incident, even if other indicators have not exceeded the standards.

[0129] Understandably, generating a pollution log characterizing the core pollutant composition for a potential pollution event includes: calculating the characteristic ratios or change gradients between multiple key water quality indicators based on multi-source data, and comparing them with thresholds in a feature rule base to classify the event into the corresponding pollution log. The pollution log to which the event belongs includes at least one of the following: organic-dominated, nitrogen-phosphorus-dominated, or high-turbidity-dominated.

[0130] In this embodiment, the wastewater event diagnosis method based on multidimensional feature vectors can ensure accurate subsequent wastewater treatment method decisions.

[0131] Within the power discharge time window, a time-sequential gate group scheduling strategy is adopted to execute pulsed discharge, which also includes: real-time monitoring of the hydraulic parameters of the pulse head within the power discharge time window; determining the discharge efficiency value of the pulse head based on the hydraulic parameters; the discharge efficiency value is used to characterize the energy change rate of the water flow or the discharge efficiency corresponding to the flow velocity; and when the discharge efficiency value is lower than a preset third preset threshold, activating the pumping station system in the river network to provide dynamic compensation and enhancement for the pulse head.

[0132] For example, the sewage discharge efficiency value is a dimensionless value that can be calculated comprehensively based on parameters such as flow velocity and head height.

[0133] In this embodiment, through a series of actions including real-time monitoring, efficiency calculation, threshold comparison, and compensation activation, the sewage discharge capacity can be guaranteed even when the tidal dynamics are weaker than expected.

[0134] Hydraulic parameters such as flow velocity (v) and wave height (h) of the pulse head can be obtained in real time using a Doppler current profiler or radar current meter. A comprehensive discharge efficiency K can be calculated based on v and h, which can intuitively reflect the head's ability to transport pollutants. If the K value decreases below a preset minimum effective discharge efficiency threshold (i.e., the third preset threshold) due to factors such as river widening or increased roughness, a backup pumping station can be automatically activated to replenish water and increase energy downstream of the head until the K value returns to the effective range.

[0135] According to the present invention, a river management method based on polluted water data is provided, which implements pulsed discharge by adopting a time-sequential gate group scheduling strategy within the power discharge time window. The method further includes: real-time monitoring of conductivity or tidal level in the downstream of the river network within the power discharge time window; determining whether there is a risk of seawater backflow in the river network based on conductivity or tidal level; and closing the gates on the seaward side of the river network if there is a risk of backflow.

[0136] For example, detecting an abnormally high conductivity indicates that seawater is intruding. Conductivity sensors are installed on both the inner and outer sides of the last gate near the open sea, such as the tide gate. During normal low tide, the conductivity outside the gate should be lower than or equal to that inside the gate. When the system detects that the conductivity outside the gate is abnormally and continuously higher than that inside the gate for a short period of time, it can be determined that seawater backflow has occurred.

[0137] Once a risk of backflow is determined, regardless of whether the discharge task has been completed, the highest priority instruction will be immediately executed: the outermost floodgate will be closed, and if necessary, the inner discharge gate will also be closed to temporarily isolate the river network system from the open sea.

[0138] In this embodiment, when a risk of backflow that may lead to pollution recirculation is detected, it is necessary to close the gate, which can effectively prevent seawater backflow.

[0139] The following describes the river management device based on polluted water body data provided by the present invention. The river management device based on polluted water body data described below can be referred to in correspondence with the river management method based on polluted water body data described above.

[0140] As shown in Figure 3, the river management device based on polluted water data provided in this embodiment of the invention mainly includes an acquisition module 310, a response module 320, a first processing module 330, and a second processing module 340.

[0141] The acquisition module 310 is used to acquire multi-source data, diagnose potential pollution events, and generate a pollution log characterizing the core pollutant composition for potential pollution events based on a preset pollutant feature rule library; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data;

[0142] The response module 320 is used to respond to pollution logs of potential pollution events. Based on the pollution capacity ledger of available hydraulic space and ecological purification capacity in the river network, it pre-constructs one or more micro-retention areas in the river network to temporarily accommodate polluted water bodies by scheduling hydraulic facilities before the pollution load arrives.

[0143] The first processing module 330 is used to determine, based on hydrological forecast data, at least one dynamic discharge time window within a future time period that meets the conditions for sewage transport; the hydrological forecast data includes tidal forecast data;

[0144] The second processing module 340 is used to determine the sewage treatment trajectory of polluted water bodies stored in the micro-storage area in the river network based on pollution logs and pollution capacity ledgers, and to execute pulsed discharge using a time-sequential gate group scheduling strategy within the power discharge time window.

[0145] The river management device based on polluted water data provided in this embodiment of the invention generates pollution logs by acquiring multi-source data, queries pollution capacity ledgers, and constructs micro-retention areas. This enables a shift from passive disaster acceptance to proactive pollution discharge, gaining valuable time and space for pollution control. By optimizing the power emission window, it achieves coordination between scheduling behavior and natural laws, ensuring the economy of action. This transforms the entire river management system from a decentralized and lagging system into a feedforward and adaptive closed-loop system, improving the efficiency and economy of urban river network water environment management.

[0146] Figure 4 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 4As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a river management method based on polluted water data. This method includes: acquiring multi-source data, diagnosing potential pollution events, and generating a pollution log characterizing the core pollutant composition for potential pollution events based on a pre-defined pollutant characteristic rule base; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data; in response to the pollution log of potential pollution events, based on a pollution capacity ledger of available hydraulic space and ecological purification capacity within the river network, and before the pollution load arrives, pre-constructing one or more micro-retention zones within the river network to temporarily accommodate polluted water bodies by scheduling hydraulic facilities; determining at least one dynamic discharge time window within a future time period that meets the conditions for sewage transport based on hydrological forecast data; the hydrological forecast data includes tidal forecast data; and determining the sewage treatment trajectory of polluted water bodies retained in the micro-retention zones within the river network based on the pollution log and pollution capacity ledger, and executing pulsed discharge using a time-sequential gate group scheduling strategy within the dynamic discharge time window.

[0147] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0148] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the river management method based on polluted water data provided by the above methods. This method includes: acquiring multi-source data, diagnosing potential pollution events, and generating a pollution log characterizing the core pollutant composition for potential pollution events based on a preset pollutant characteristic rule base; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data; responding to potential... The pollution log of the pollution event, based on the pollution capacity ledger of available hydraulic space and ecological purification capacity within the river network, pre-constructs one or more micro-retention zones within the river network to temporarily accommodate polluted water bodies by scheduling hydraulic facilities before the pollution load arrives; based on hydrological forecast data, at least one dynamic discharge time window with conditions to meet sewage transport is determined within the future time period; the hydrological forecast data includes tidal forecast data; based on the pollution log and pollution capacity ledger, the sewage treatment trajectory of the polluted water bodies retained in the micro-retention zones in the river network is determined, and pulsed discharge is executed using a time-sequential gate group scheduling strategy within the dynamic discharge time window.

[0149] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the river management method based on polluted water data provided by the above methods. This method includes: acquiring multi-source data, diagnosing potential pollution events, and generating a pollution log characterizing the core pollutant composition for the potential pollution event based on a preset pollutant characteristic rule base; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data; and responding to the pollution log of the potential pollution event, based on the river... The pollution capacity ledger of available hydraulic space and ecological purification capacity within the river network is used to pre-construct one or more micro-retention zones for temporary containment of polluted water bodies by scheduling hydraulic facilities before the pollution load arrives. Based on hydrological forecast data, at least one dynamic discharge time window with conditions that meet the sewage transport requirements is determined in the future time period. Hydrological forecast data includes tidal forecast data. Based on the pollution log and pollution capacity ledger, the sewage treatment trajectory of polluted water bodies stored in the micro-retention zones in the river network is determined, and pulsed discharge is carried out using a time-sequential gate group scheduling strategy within the dynamic discharge time window.

[0150] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0151] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0152] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A river management method based on polluted water body data, characterized in that, include: Acquire multi-source data, diagnose potential pollution events, and generate a pollution log characterizing the core pollutant composition for the potential pollution events based on a preset pollutant feature rule base; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data; In response to the pollution log of the potential pollution event, based on the pollution capacity ledger of available hydraulic space and ecological purification capacity within the river network, one or more micro-retention areas for temporary accommodation of polluted water bodies are pre-constructed within the river network by scheduling hydraulic facilities before the pollution load arrives. Based on hydrological forecast data, at least one dynamic discharge time window with conditions for sewage transport is determined within the future time period; the hydrological forecast data includes tidal forecast data; Based on the pollution log and the pollution capacity ledger, the wastewater treatment trajectory of polluted water bodies stored in the micro-storage area in the river network is determined, and pulsed discharge is executed using a time-sequential gate group scheduling strategy within the dynamic discharge time window.

2. The river management method based on polluted water body data according to claim 1, characterized in that, The process of determining the wastewater treatment trajectory in the river network for polluted water bodies stored in micro-retention areas, based on the pollution log and the pollution capacity ledger, includes: Based on the pollution log and the pollution capacity ledger, the discharge trajectory of polluted water bodies stored in each sub-zone of the micro-storage area is determined. The discharge trajectories include: a trajectory that guides polluted water from the first sub-zone to an ecological buffer zone for retention and degradation; a trajectory that guides polluted water from the second sub-zone to a sewage treatment plant for treatment; and a tidal discharge trajectory that directly discharges polluted water from the third sub-zone into the open sea in a pulse manner.

3. The river management method based on polluted water body data according to claim 2, characterized in that, The wastewater treatment plant has sludge treatment capacity. The step of determining the wastewater disposal trajectory in the river network for polluted water bodies stored in the micro-storage area, based on the pollution log and the pollution capacity ledger, further includes: The area containing the upper layer of clear water formed in the retention zone is identified as the third sub-zone, and the area containing the water layer adjacent to the lower layer of high-concentration polluted sludge is identified as the second sub-zone. The water body corresponding to the upper layer of clear water and the water layer adjacent to the lower layer of high-concentration polluted sludge are obtained by adding flocculants into the micro-retention zone. Through surface hydraulic facilities, the upper layer of clean water in the third sub-zone is pulsedly discharged within the power discharge window, and through bottom sludge discharge facilities, the water layer adjacent to the lower high-concentration polluted sludge layer in the second sub-zone is guided to the sewage treatment plant for treatment.

4. The river management method based on polluted water body data according to any one of claims 1-3, characterized in that, The process of generating a pollution log characterizing the core pollutant composition for the potential pollution event includes: Based on the multi-source data, the characteristic ratios or change gradients among multiple key water quality indicators are calculated and compared with the thresholds in the feature rule base to classify the events into corresponding pollution logs. The pollution logs belong to at least one of organic-dominated, nitrogen-phosphorus-dominated, or high-turbidity-dominated types.

5. The river management method based on polluted water body data according to claim 1, characterized in that, The dynamic emission time window is the time period when the ebb tide hydraulic gradient is higher than a first preset threshold and the predicted salinity of the outer sea is lower than a second preset threshold.

6. The river management method based on polluted water body data according to claim 1, characterized in that, The implementation of pulsed emission using a time-sequential gate group scheduling strategy includes: Open the control gate at the downstream end of the micro-retention zone to release the high-concentration pollution plume from the front. Based on a preset time delay, other coordinated gates in the river network are opened sequentially from upstream to downstream to converge water flow and form a concentrated flow.

7. The river management method based on polluted water body data according to claim 1, characterized in that, The method of executing pulsed emissions using a time-sequential gate group scheduling strategy within the power emission time window further includes: Within the power emission time window, the hydraulic parameters of the pulse head are monitored in real time. The sewage discharge efficiency value of the pulse head is determined based on the hydraulic parameters; the sewage discharge efficiency value is used to characterize the sewage discharge efficiency corresponding to the energy change rate of the water flow or the flow velocity. If the sewage discharge efficiency value is lower than the preset third threshold, the pumping station system in the river network is activated to provide dynamic compensation and enhancement for the pulse head.

8. The river management method based on polluted water body data according to claim 1, characterized in that, The method of executing pulsed emissions using a time-sequential gate group scheduling strategy within the power emission time window further includes: Within the aforementioned power emission time window, the electrical conductivity or tidal level of the downstream river network is monitored in real time. Based on the electrical conductivity or tidal level, determine whether there is a risk of seawater backflow within the river network; In cases where there is a risk of backflow, close the sluice gates on the river network near the open sea.

9. A river management device based on polluted water body data, characterized in that, include: The acquisition module is used to acquire multi-source data, diagnose potential pollution events, and generate a pollution log characterizing the core pollutants for the potential pollution events based on a preset pollutant feature rule base; the multi-source data includes at least meteorological forecasts, hydrological forecasts, and real-time water quality data. The response module is used to respond to the pollution log of the potential pollution event, based on the pollution capacity ledger of available hydraulic space and ecological purification capacity in the river network, and to pre-construct one or more micro-storage areas in the river network to temporarily accommodate polluted water bodies by scheduling hydraulic facilities before the pollution load arrives. The first processing module is used to determine, based on hydrological forecast data, at least one dynamic discharge time window within a future time period that meets the conditions for sewage transport; the hydrological forecast data includes tidal forecast data; The second processing module is used to determine the sewage treatment trajectory of polluted water bodies stored in the micro-storage area in the river network based on the pollution log and the pollution capacity ledger, and to execute pulsed discharge using a time-sequential gate group scheduling strategy within the power discharge time window.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, characterized in that, When the processor executes the program, it implements the river management method based on polluted water body data as described in any one of claims 1 to 8.

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