54 results about "River pollution" patented technology

The invention relates to the field of river pollution treatment, and discloses a water quality treatment method, system, equipment and medium based on a remote sensing inversion technology, and the method comprises the following steps: S1, collecting a hyperspectral remote sensing image of a to-be-monitored water body, the hyperspectral remote sensing image comprising chlorophyll concentration, suspended matter concentration and dissolved oxygen; s2, based on the hyperspectral remote sensing image, preprocessing the hyperspectral remote sensing image, including geometric correction, atmospheric correction, noise removal and waveband fusion, to obtain a preprocessed image meeting an inversion precision requirement; and S3, inputting the preprocessed image into a water quality inversion model, and obtaining pixel-level chlorophyll, suspended solids and dissolved oxygen concentration data based on physical radiation transmission. By combining the hyperspectral remote sensing image and the water quality inversion model, large-range, real-time and high-precision water quality monitoring and pollution zoning are realized, model parameters are dynamically updated, and the timeliness and precision of water quality treatment are improved.

The invention discloses a river-into-sea pollution source segmented detection device, and belongs to the technical field of water pollution detection, the river-into-sea pollution source segmented detection device comprises a clear water tank fixedly mounted on a ship body, a mounting rack is fixedly mounted on one side of the clear water tank, and a hoisting mechanism, a water sample extraction mechanism, a water sample detection mechanism and a pipeline air drying mechanism are fixedly mounted on the top of the mounting rack. According to the invention, through cooperative use of the pipeline flushing mechanism and the cleaning member, water samples remaining in pipelines of the water sample detection mechanism and the water sample extraction mechanism can be flushed and cleaned; clear water left in the cleaned pipeline of the water sample detection mechanism and the water sample extraction mechanism can be subjected to hot air drying, so that the condition that a water body in a target detection area is mixed with a water body in a non-target detection area when the pollution conditions of different water areas are subjected to multi-point segmented detection is avoided; and the accuracy of a water pollution source detection result is improved.

The invention relates to the technical field of electronics, and discloses an urban river pollutant traceability method and device, electronic equipment, a medium and a product. The method comprises the steps that when it is monitored that target pollutants of any target monitoring section exceed the standard, the target monitoring section serves as an end point; reversely simulating an upstream diffusion path of the target pollutants by using a pre-constructed mechanism and data hybrid model to obtain theoretical concentrations of the target pollutants in a plurality of upstream river sections; determining at least one traceable river reach in the plurality of upstream river reaches based on the theoretical concentration of the target pollutants; pollution characteristic data of a water body in the traceable river reach is obtained; performing similarity calculation on the pollution characteristic data and characteristic data of a plurality of pollution sources in a pre-constructed pollution source characteristic knowledge graph to obtain a similarity value between the pollution characteristic data and each pollution source; and determining at least one target pollution source in the plurality of pollution sources based on the similarity value, thereby realizing dual precision of qualitative and quantitative analysis of the pollution sources, and greatly improving the tracing efficiency.

The barrier gate comprises a driving motor fixedly connected to one side of the top of a riverway, an output shaft of the driving motor is fixedly connected with a first rotating rod, a mounting seat is mounted in the riverway through a first supporting seat and a second supporting seat, then the driving motor is started, and the first rotating rod is fixedly connected with a second rotating rod. A driving motor drives a first rotating rod to rotate through a first supporting seat, the first rotating rod drives first gears on the two sides to rotate, the first gears drive a second gear at the bottom to rotate through a chain, the second gear drives a second rotating rod to rotate through a second supporting seat, meanwhile, the chain drives a fixing rod to move, and the fixing rod drives a connecting rod to move. The connecting rod drives the collecting rod to move, sundries intercepted at the trash rack can be cleaned and fished through the collecting rod, the collecting rod can be turned over through the chain, and the cleaned and fished sundries are conveyed out of the river channel through the collecting rod to be collected and cleaned, so that the purposes of cleaning the sundries in the river channel, preventing the river channel from being blocked and keeping water flow smooth can be achieved.

The invention provides a river water pollution treatment device, which belongs to the technical field of environmental pollution abatement, and comprises a pretreatment water diversion cylinder, an adjustable buffer water delivery assembly is arranged on the inner side of the pretreatment water diversion cylinder, and the lower part of one end far away from a water inlet is connected with a sediment trapping cylinder; a conical filter cylinder is arranged on the inner side of the sediment trapping cylinder and is communicated with the rear side of the filter plate in the pretreatment water guide cylinder through an intercommunication guide pipe. The rear side of the filter plate is connected with the bottom of a deep treatment box through a water delivery pump; a detachable sealing top cover and a purified water outflow pipe are arranged at the top of the box. A biological membrane reaction assembly and an ultraviolet lamp disinfection assembly are arranged in the deep treatment box, and the biological membrane reaction assembly depends on a rotatable carrier frame and utilizes attached microorganisms to degrade organic matters and nitrogen and phosphorus nutritive salts, so that efficient purification is realized. According to the invention, stable, efficient and integrated treatment of the polluted water body of the riverway is realized through the synergistic effect of self-adaptive buffer water inlet, efficient sedimentation and filtration, rotary biofilm degradation and ultraviolet disinfection.

The present application relates to the field of pollution control of rivers flowing into the sea, and provides a cross-regional pollution collaborative control and scheduling system for rivers flowing into the sea. The system collects water quality indexes at fixed river sections at uniform time intervals in multiple administrative regions along the rivers flowing into the sea, and constructs water quality time series data sets for the corresponding river sections. Based on the characteristics of water quality changes, pollution change river sections are identified, and cross-regional transmission paths for the transmission of pollution changes to downstream are constructed according to the actual flow direction of the river. The system deduces the pollution changes step by step along the transmission path, and corrects the water quality change state in combination with the river section response parameters to obtain the deduced water quality state corresponding to the downstream river section. By comparing the deduced water quality state with the control threshold of the downstream river section, a collaborative control and scheduling request is generated, and after the scheduling is executed, the water quality time series data set of the affected river section is reconstructed, and the river section response parameters are updated, thereby forming a closed-loop scheduling process for cross-regional pollution control.

This invention discloses the application of a salt-tolerant immobilized denitrifying microbial agent in denitrification of low-temperature saline river water. The salt-tolerant immobilized denitrifying microbial agent is placed in a net bag and evenly suspended in the river channel. The salt-tolerant immobilized denitrifying microbial agent uses zeolite as the immobilization carrier, and the immobilized microorganisms are salt-tolerant denitrifying microbial agents enriched and screened from rivers flowing into the sea. The dosage of the salt-tolerant immobilized denitrifying microbial agent is 2 g·L⁻¹. ‑1 The dosage is the mass-to-volume ratio of the immobilized denitrifying bacterial agent to the river water. The low-temperature saline river water is saline river water with nitrate nitrogen as the main pollutant. The temperature of the low-temperature saline river water is 10℃~25℃. During the denitrification process, a carbon source is added to the river water to maintain denitrification efficiency. This invention has demonstrated its feasibility in practical engineering applications through pilot-scale experiments. It can effectively remediate river pollution and solve the problem of severe and difficult-to-remediate water pollution in saline rivers.

The utility model provides a river channel water surface garbage intercepting device, which relates to the technical field of river channel trash holding, and comprises trash holding buoys, and when two adjacent trash holding buoys are in contact through trash holding ropes penetrating through insertion holes, an intercepting net is positioned at the contact part of the two adjacent trash holding buoys and is attached to the peripheral surfaces of the two trash holding buoys; the intercepting net is used for effectively blocking gaps originally existing between every two adjacent sets of trash holding buoys, the intercepting capacity of the trash holding wall is further enhanced, it is guaranteed that no notch is formed in each position of the formed trash holding wall, and therefore the intercepting efficiency and quality of trash on the water surface are greatly improved; the problems that small garbage leaks easily and cannot be intercepted comprehensively due to the fact that gaps exist between the adjacent buoys are solved.

The invention provides a river pollutant quantitative traceability method and device based on water quality fingerprints and a server, and relates to the technical field of crossing of environmental monitoring and water pollution governing, and the method comprises the steps: carrying out the dual-spectrum synchronous sampling processing of a to-be-detected water body, obtaining a spectrum image, and constructing an initial water quality fingerprint based on the target quantitative features in the spectrum image; constructing a weighting function through a flow velocity and concentration gradient product term, and performing real-time correction processing on the weighting function by using an environment adjustment coefficient to obtain a target weighting function, so as to combine the target weighting function with the initial water quality fingerprint to obtain a target water quality fingerprint; and matching the target water quality fingerprints with a preset fingerprint database to obtain spectrum similarity, and analyzing the target water quality fingerprints passing the spectrum similarity verification through a dual physical constraint optimization model and Monte Carlo uncertainty quantization to obtain a pollutant traceability result. According to the method, the timeliness and the tracing precision of pollutant tracing can be remarkably improved.

The device comprises two sets of vertical plates and a cross beam detachably installed at the tops of the vertical plates, a driving bin is arranged at the bottom of the cross beam, a lifting structure is arranged in the driving bin, sliding grooves are formed in the two sets of vertical plates, and trash blocking plates slide in the sliding grooves; the lifting structure is used for driving the trash holding plate to ascend and descend, and a scraping cleaning assembly is arranged on the trash holding plate. In order to enable the trash blocking plate to adapt to seasonal drastic changes of the river water level, the lifting structure comprises two supporting plates arranged on the inner top wall of the driving bin and rotating shafts rotationally arranged on the opposite faces of the two supporting plates. The invention relates to the technical field of river treatment equipment, and particularly provides a river pollutant intercepting device and method.

This utility model relates to the field of wastewater treatment technology, and more particularly to a wastewater treatment device for river pollution sources. It includes a filter chamber, a filter screen, spiral blades, a slag discharge port, a drive motor, an installation chamber, an installation plate, an inspection door, a purification tank, and an aeration pipe. The filter chamber has a filter screen at its lower end and spiral blades at its upper end. A slag discharge port is located on the right side of the filter chamber, and a drive motor is located on the left side. An installation chamber is located on the outer side of the lower end of the filter chamber, with an installation plate at its upper end and an inspection door on its left side. A purification tank is located at the lower end of the installation chamber, and an aeration pipe is located on the inner side of the purification tank. This utility model removes larger impurities through the filter screen, achieving preliminary wastewater treatment and preventing the deposition of larger impurities in the purification tank. The drive motor controls the rotation of the spiral blades, pushing impurities on the filter screen surface towards the slag discharge port for convenient centralized collection and treatment.

This utility model relates to the technical field of environmental monitoring and discloses a river pollution monitoring water quality sampler, including a sampler with a sampling mechanism fixedly installed on its inner surface. The sampling mechanism includes an automatic closing assembly, which includes a sampling box. A rotating rod is rotatably installed on the inner surface of the sampling box, and a closing plate is fixedly installed on the outer surface of the rotating rod. A torsion spring is provided on the outer surface of the rotating rod away from the closing plate, and the top of the torsion spring is fixedly connected to the inner wall of the sampling box. A limit block is fixedly installed on the inner surface of the sampling box. This river pollution monitoring water quality sampler uses a second water pump to inject water from the outlet pipe into the diversion pipe. Valves control the opening and closing of each diversion pipe, allowing water in the diversion pipe to flow into the corresponding water bladder, increasing the weight of the float and causing it to sink. By controlling the water content in the water bladder, the sampling box's residence time at different water layers is controlled. The water is then pumped through a first water pump and a suction pipe.

The invention relates to the technical field of ecological filter tanks, in particular to an ecological filter tank for preventing and treating river pollution, which comprises a filter tank body which is sequentially divided into a water inlet bin, a sludge bin, a fungus bin and a water purification bin along a sewage flowing direction to form a four-stage purification process; the water inlet bin intercepts and cleans large-particle impurities through a filtering grating and an automatic lifting plate; the sludge bin realizes automatic collection and discharge of sludge by means of an inclined plane and a spiral conveying mechanism; the fungus bin is provided with an anaerobic bacteria cavity, an anoxic bacteria cavity and an aerobic bacteria cavity which are independent, sewage gravity flow is realized through height difference, a strain living environment is optimized by matching with a carbon source slow release tank, a microporous aerator and the like, and a planting box and a biological carrier layer in the cavities form a plant-microorganism synergistic purification system; the water purification bin realizes tail water clarification; the problems that an existing filter tank is poor in pretreatment effect, not thorough in strain purification, tedious in maintenance and the like are solved.

The invention provides a real-time water environment assessment method based on a fully-mixed model, and relates to the technical field of water environment protection, and the method comprises the steps: obtaining the flow and each water environment index concentration of a to-be-assessed cross section and an upstream cross section in real time, thereby predicting each water environment index concentration of the to-be-assessed cross section at the current moment after customer water merges; and calculating a Nemerow comprehensive pollution index so as to evaluate the water environment. According to the method, the Neimero comprehensive pollution index of the to-be-evaluated section at each moment is predicted through the section total hybrid model, and the influence of the upstream section is considered in prediction, so that the comprehensive index not only reflects the pollution of a single section, but also implies the pollution transmission information of the upstream and downstream hybrid process. Meanwhile, the Nemerow comprehensive pollution indexes predicted at a plurality of continuous moments can form time sequence association, and the method is more suitable for the actual scene that river pollution dynamically changes along with time. The data timeliness and the section relevance are comprehensively considered, and the real-time performance and the accuracy of water environment quality evaluation are improved.

The present application relates to the technical field of river basin water environment management and water ecological evaluation, and particularly relates to a river flood season pollution impact evaluation method and system combining river basin spatial analysis and water ecological response. The method first collects water ecological data, pre-processes the water ecological data, calculates the water ecological metabolism background value before the non-flood season or the flood season pollution event based on the diurnal variation model of river dissolved oxygen concentration based on mass balance, calculates the theoretical lag time from rainfall to pollution peak value based on the correlation between the catchment area and the response time, and delimits the flood season pollution event window period. Based on the high-frequency monitoring data of the water ecology in the flood season pollution event window period, the water ecological metabolism response index is calculated, the disturbance intensity of the pollution event on the water ecological system metabolism function is evaluated, the non-point source pollution intensity index and the point source risk evaluation value are calculated, and the pollution source investigation suggestion is comprehensively generated. The present application effectively solves the problem of difficult definition of non-point source pollution responsibility in the flood season, and realizes the accurate identification of pollution sources.

The invention relates to the technical field of river pollutant improvement, in particular to a river water quality improvement method based on two-network model fusion. The method comprises the following steps: acquiring target river channel information, and constructing a river channel physical network model and an information network model based on the information; the dynamic diffusion condition of the river pollutants is estimated through a physical network model, and the water quality decline evolution trend and the ecological toughness attenuation condition are combined; analyzing a water quality change process, and identifying driving factors of water quality decline; transmitting the driving factor data to the physical network model, and performing river pollution tracing to obtain pollution source data; on the basis of pollution source data, riverway water level regulation and polluted water body remediation treatment are implemented; the water quality of the river channel is improved, so that the water quality of the river channel is more stable.

The invention relates to a riverway pollution purification device which comprises an outer pipe and an inner pipe. A containing cavity is formed between the outer pipe and the inner pipe. The containing cavity is filled with filler. The upper end of the inner pipe is exposed out of the water surface; air enters from the upper end of the inner pipe and is discharged into the accommodating cavity from the air hole; the outer pipe is located below the liquid level and connected with an inlet of the water pump. The inner tube is connected with one end of a power supply to form an anode; the outer tube is connected with the other end of the power supply to form a cathode; and when electrified, the filler is decomposed into substances for adsorbing pollutants, oxidizing organic matters and oxidizing ammonia nitrogen to generate nitrogen. By organically combining electrochemical action with multiple mechanisms of physical adsorption, biodegradation and the like, the device promotes the filler to be decomposed under the electrified condition, generated active substances can efficiently adsorb, oxidize and decompose organic pollutants in a water body, and meanwhile ammonia nitrogen is directly converted into harmless nitrogen to be discharged; and synchronous deep removal of various pollutants is realized.

The utility model relates to the technical field of river channel anti-fouling equipment, and discloses a detachable enhanced anti-fouling and anti-scouring river channel anti-fouling device which comprises an anti-fouling curtain body arranged in a river channel, a front trash holding assembly and a fixing assembly. Supporting steel pipes are arranged at the two ends of the antifouling curtain body, and the antifouling curtain body is vertically arranged in a river channel through the supporting steel pipes. The front trash holding assembly comprises a steel structure frame, a plurality of detachable outer frames are installed on the steel structure frame, non-woven fabric filter layers are installed on the detachable outer frames, a plurality of connecting ropes are installed on the steel structure frame, and the connecting ropes are connected to the antifouling curtain. According to the detachable river channel anti-fouling device capable of enhancing the anti-fouling and anti-scouring functions, the non-woven fabric filter layer is arranged and used for filtering large garbage and fine particles in a river channel and reducing the water flow speed, the influence of river water and garbage impact on the anti-fouling curtain can be reduced, the service life of the anti-fouling curtain is prolonged, the anti-fouling curtain replacement frequency is reduced, and the anti-fouling effect is improved. The environment-friendly and synergistic effects are achieved.

The application discloses a kind of river pollution control equipment control operation systems, for the operation control of pollution control equipment in river pollution treatment, including water quality pollution parameter index detection system, industrial internet and river pollution working point, the water quality pollution parameter index detection system and river pollution working point are set to multiple points, the industrial internet includes center server, the center server can collect and summarize the detection data of water quality pollution parameter index detection system, the center server can simultaneously start-stop control operation to each pollution control equipment;The application analyzes and judges pollution condition according to river basin pollution control standard, establishes monitoring and management quick response mechanism, timely handles the occurrence of pollution accident, obtains the pollution control efficiency and the pollution control cost synergic optimal pollution control equipment control operation scheme, to realize the unmanned intelligent control of pollution control equipment with high efficiency and low cost strategy, avoid river pollution accident expansion, reduce pollution accident loss.

The present invention relates to the technical field of pipeline sediment removal and discloses a pipeline sediment removal water treatment device and intelligent control system, comprising a housing, wherein one end of the housing is provided with a water inlet, and the other end is provided with a water outlet; the water inlet is communicated with the forebay of a pump station through a pump-liquid assembly, and the water outlet is equipped with a flushing pipeline, the drainage end of the flushing pipeline extending into the main drainage pipeline; a primary screening mesh, wherein the primary screening mesh is detachably connected to the inner wall of the water inlet; a conical filter mesh, wherein the conical filter mesh is laterally installed on the inner wall of the housing, and an electric cleaning brush is installed inside the conical filter mesh; an adsorption assembly, wherein the adsorption assembly includes an activated carbon adsorption component, arranged between the conical filter mesh and the water outlet, for adsorbing impurities in the water; the invention can realize hierarchical filtration and automatic sediment removal within the drainage pipeline, reducing river pollution, improving work efficiency, and ensuring the stable operation of the pump station.

The invention discloses a method for constructing a pipe bottom sediment scouring model of an SWMM open source model, which comprises the following steps of: S10, constructing a one-dimensional pipe bottom sediment scouring and depositing theoretical model by combining an SWMM water quality model and a two-dimensional suspended load scouring and depositing function; s20, establishing a theoretical model numerical calculation equation according to the one-dimensional pipe bottom sediment scouring deposition theoretical model and an SWMM water quality model numerical method; step S30, updating an SWMM water quality open source calculation engine based on the theoretical model numerical calculation equation; and S40, calling the SWMM water quality open source calculation engine to calibrate the pipe bottom scouring parameters of the localized model. A convenient and efficient water quality model is provided for research on river discharge pollution of a pump station of an urban rain drainage system, the model integrates the advantages of a scouring model and a sand carrying force model, improvement is carried out based on an SWMM open source model, the method is simple and easy to implement, and the depth and efficiency of research on pollution movement change of the rain drainage system are improved.

The invention belongs to the technical field of environment cleaning, particularly relates to an intelligent sewage disposal system for river pollutants, and aims to solve the problems that the efficiency is low and certain potential safety hazards exist when garbage in a river is salvaged manually in the prior art, the following scheme is provided: the intelligent sewage disposal system comprises a mounting frame which is arranged on two banks of the river; the blocking net is arranged in the mounting frame and used for blocking garbage floating in the river, a lifting assembly is arranged between the mounting frame and the blocking net, and the lifting assembly is used for controlling the position, immersed in the river, of the blocking net; a U-shaped frame is slidably connected into the fishing plate and the blocking net, the fishing plate is arranged in the U-shaped frame and used for fishing garbage intercepted by the blocking net, and a set of fishing assembly is arranged in the blocking net and used for driving the fishing plate to conduct fishing; and the pulling knots intercepted by the blocking net can be salvaged and lifted through the arranged salvage plate capable of being upgraded, and the situation that the blocking net is blocked due to the fact that garbage blocks are concentrated at one position can be prevented.

The utility model discloses an automatic river pollution identification device which comprises a mesh cage, the center of a top disc is fixedly connected with a stand column, the outer side of the edge of a fluted disc is provided with a moving part, the bottom end of the moving part is fixedly provided with an identification camera, the inner side of a fixing ring is fixedly provided with a water quality monitoring sensor, and the water quality monitoring sensor is fixedly connected with a water outlet. A buoy is mounted on the outer side of the fixed rod, movement of the recognition camera is realized through a fluted disc-moving part mechanism driven by a servo motor, and a 120-degree visual angle scanning range is constructed; five types of water quality sensors (pH / DO / turbidity / conductivity / residual chlorine) are integrated, so that various indexes of surface water environment quality can be detected; establishing a pollution feature library based on a CNN convolutional neural network to realize automatic classification of pollution types; the floating barrel and net cage composite structure is adopted, the movement path of the device is adjusted through the pneumatic fan, the rope can delineate the movement range, and the device achieves automatic pollutant identification, pollutant isolation and comprehensive detection of the river pollution type and is convenient to use and accurate in detection.

This invention discloses an automatic regulating drift barrier and its regulating method at the intake of a hydropower station, relating to the field of river pollution control technology. Its main technical solution is as follows: two adjacent drift barrier units are connected by a connector; a driving component is connected to any one of the connectors; a module acquires the theoretical tension force; when the theoretical tension force exceeds the breaking force of the drift barrier body, the control module controls the driving component to disconnect the corresponding two drift barrier units. In extreme conditions (such as heavy rain, flash floods, or flood season), the driving component is preemptively controlled to disconnect the two drift barrier units. This disconnects the drift barrier body into two parts, forming a water flow channel between them. The aim is to reduce the risk of damage to the drift barrier body due to water flow impact, thereby reducing the risk of debris buildup and preventing downstream equipment blockage and mechanical damage caused by debris carried downstream by the water flow.

The application discloses a floating purification device for a river sewage outlet, comprising a mounting frame; two connecting frames are fixedly installed on the two sides of the mounting frame, and the same floating body is fixedly installed on the two connecting frames on the same side; two U-shaped frames are slidingly installed on the mounting frame, and a sewage purification structure is installed on the two U-shaped frames. The application also discloses a floating purification method for the river sewage outlet. When in operation, the device can be placed at the river sewage outlet, the floating body is floated on the water surface, and the electric pump is used to pump water into the purification box, so that the water is discharged after being purified by the solid microbial carrier layer and the braided curtain type biological membrane carrier. The electric pump can promote the water to pass through the solid microbial carrier layer and the braided curtain type biological membrane carrier, thereby improving the purification efficiency of the water. The height of the purification box can be adjusted by rotating the handle, so that the device can be used in rivers with different depths, thereby improving the applicability and stability of the device.

The invention discloses a riverway pollution control device and method, and belongs to the technical field of riverway treatment. The riverway pollution control device comprises a pollutant collecting mechanism, a guide mechanism for intercepting pollutants and guiding the pollutants into the collecting mechanism is arranged in front of the collecting mechanism, and a conveying mechanism for discharging the pollutants is arranged behind the collecting mechanism; the collecting mechanism comprises a base, the base is fixed to the bottom of the river channel, ejector rods are arranged above the base, the base and the ejector rods are connected through a first supporting rod and a second supporting rod, and a stirring structure for stirring pollutants to move is arranged between the ejector rods. By adopting the riverway pollution prevention and control device and method, the problem that an existing riverway trash holding device is poor in pollutant cleaning effect can be solved.

The application discloses a river intelligent management monitoring method and system based on a complex network and application thereof, and ingeniously realizes monitoring linkage through ground-air-space, utilizes a ground sensor group as a normal monitoring part, triggers air / space observation when abnormal monitoring feedback occurs, constructs a time-varying relation graph through a desourced sensor sequence data in the aspect of data collection, and effectively discovers overall network abnormality based on transition detection of a correlation, partial correlation and mutual information matrix and a corresponding baseline; in combination with calculation of a node abnormality degree, an abnormal monitoring node in a river network can be quickly located; the application realizes a self-adaptive monitoring closed loop of "letting the ground command the air / space", plays the high-precision and high-frequency advantages of the ground sensor, takes into account the planar coverage and rapid response of the remote sensing technology, and significantly improves the real-time performance, accuracy and resource utilization efficiency of river pollution monitoring.

The present application relates to the technical field of environmental monitoring, and in particular to a machine learning model construction method for pollution source analysis of rivers flowing into the western region of Taihu Lake. The method comprises the following steps: data collection and regional division; pollution source analysis basic model building; physical constraint loss function construction; dynamic rule migration mechanism configuration model training and iterative optimization; model verification and result output. The present application sets target domain data sufficiency judgment indexes including effective sample size, data time continuity and feature distribution stability. When the target domain data is insufficient, the present application extracts the nonlinear mapping relationship from the source domain by screening meteorological matching samples, and migrates to the target domain based on the topological similarity of the water system structure after correction, and then supports model training through the "pre-training freezing-fine tuning unfreezing" process, thereby solving the problem of insufficient monitoring data of some branches in the western region of Taihu Lake and providing effective data support for model training.

The application relates to the technical field of river pollution monitoring and tracing, and discloses a river pollution tracing system and method based on an autonomous mobile monitoring platform. The system comprises an information management unit, a monitoring execution unit and a tracing analysis unit, wherein the monitoring execution unit comprises a river water area display module and at least one mobile water quality monitoring platform, and the tracing analysis unit comprises a pollution event inputting sub-module, a pollution source tracking simulation sub-module and an investigation result generation sub-module. The mobile water quality monitoring platform can autonomously sail in a target river section, collect and upload water environment pollution characteristic parameter data in real time; the method is based on a particle swarm optimization algorithm to iteratively search and analyze the monitoring data, determine the position coordinates of a pollution source and can generate suspected pollution enterprise investigation results. The application is suitable for monitoring, analyzing and tracing river sudden pollution events.

The invention discloses a sea-entering river pollution early warning and traceability system, and relates to the field of intelligent water environment supervision, and the system comprises an integrated monitoring network which is used for monitoring river monitoring stations, river-entering discharge port monitoring nodes and hydro-meteorological monitoring units which are arranged in a spatial distribution manner, collecting multi-parameter indexes of a water body, discharge characteristic data of a discharge port and environmental power data; the intelligent analysis and traceability engine is used for carrying out fusion processing on the monitoring data and executing dynamic early warning judgment and pollution source intelligent traceability analysis based on a fusion data set, and the traceability analysis is coupled with a mechanism driving analysis normal form and a data driving analysis normal form; and the early warning and decision support platform is used for issuing graded early warning information according to an output result of the engine, providing visual situation display based on an electronic map and automatically generating a structured traceability report. According to the scheme, the efficiency of monitoring the environment of the river entering the sea can be remarkably improved, and the system realizes early perception and accurate early warning of pollution events.