Water pollution complex control method and system based on real-time monitoring of water pollution

Abstract

The present invention discloses a water pollution composite control method and system based on real-time monitoring of water pollution, which relates to the rolling field, including: sampling the water quality of the target water area through the water quality sampling equipment carried by the real-time water quality monitoring point to obtain the water quality samples at each real-time water quality monitoring point; measuring the absorbance of the water quality samples at each real-time water quality monitoring point at each wavelength; calculating the concentration of each pollutant in the water quality samples at each real-time water quality monitoring point; constructing a two-dimensional water quality diffusion model of the target water area; locating the location of the pollution source of the target water area through the two-dimensional water quality diffusion model of the target water area; obtaining the type of pollution source of the target water area, and taking corresponding water pollution composite control measures based on the type of pollution source. The water quality sampling module, the water quality detection module and the pollution control module are set to realize the water quality sampling of the target water area, and then more demand analysis is performed on the water body samples to realize the tracking and positioning of the pollution source.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, and in particular to a water pollution composite treatment method and system based on real-time monitoring of water pollution. Background Art

[0002] With the development of the country and the advancement of science and technology, my country has attached more and more importance to the protection and management of the water ecological environment. Through management and remediation, the water quality of rivers has been greatly improved, but it has also caused a lot of human and material resources to be consumed.

[0003] At present, the traditional water quality detection methods at home and abroad are mainly "field sampling-chemical reagent analysis". The detection process is cumbersome and expensive. It is impossible to achieve rapid and simple online monitoring of water quality, and it is also impossible to conduct in-situ profile surveys. Ultraviolet visible absorption spectroscopy is expected to subvert traditional chemical detection. It has the advantages of fast response speed, in-situ measurement and no need for sample pretreatment. It can perform rapid online measurements on site and become one of the important methods to solve in-situ profile surveys. This method currently faces technical difficulties such as difficulty in feature extraction and poor reliability of commonly used model decisions. In addition, spectral sensors lack standards or methods to determine the concentration range of detection parameters. Most of the water quality detection products based on spectroscopy on the market are in a stand-alone state, and the measurement accuracy needs to be improved urgently. Summary of the invention

[0004] In order to solve the above technical problems, a water pollution composite treatment method based on real-time monitoring of water pollution is provided. This technical solution solves the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] The water pollution control method based on real-time monitoring of water pollution includes:

[0007] The water quality of the target water area is sampled by the water quality sampling equipment installed at the real-time water quality monitoring point to obtain water quality samples at each real-time water quality monitoring point;

[0008] The absorbance of water quality samples at each water quality real-time monitoring point at each wavelength is measured by ultraviolet visible spectroscopy through a dual light path detection instrument;

[0009] Based on the absorbance of water samples at each wavelength, the Lambert-Beer law is used to calculate the concentration of each pollutant in the water samples at each real-time water quality monitoring point;

[0010] Based on the concentration of each pollutant in the water quality samples at the real-time water quality monitoring points on the same horizontal plane, a two-dimensional water quality diffusion model of the target water area is constructed;

[0011] Locate the pollution source of the target water area through a two-dimensional water quality diffusion model of the target water area;

[0012] Obtain the types of pollution sources in the target waters and take corresponding water pollution complex control measures based on the types of pollution sources.

[0013] Preferably, the water quality sampling device carried by the real-time water quality monitoring point is used to sample the water quality of the target water area, and the water quality samples at each real-time water quality monitoring point are obtained, which specifically includes:

[0014] Place at least one real-time water quality monitoring point upstream and downstream of the target waters;

[0015] Sink the sampler into the water to the same level, and turn on the sampler to collect water quality samples;

[0016] Label water quality samples with the location, date, and time of collection.

[0017] Preferably, the method of measuring the absorbance of water quality samples at each real-time water quality monitoring point at each wavelength by using a dual light path detection instrument using ultraviolet visible spectroscopy specifically includes:

[0018] When the dual-light path test instrument is in operation, the light emitted by the internal xenon lamp source is divided into two beams;

[0019] A beam of light passes through the measuring chamber and through the water quality sample to be measured, which is set as the measuring light path, and the spectrum value of the measuring light path is recorded;

[0020] The other beam is set as a reference light path, which does not pass through the water quality sample to be tested, and the spectrum value of the reference light path is recorded;

[0021] The spectrum obtained when the xenon lamp is not triggered is set as the dark background spectrum;

[0022] Get the spectrum value of distilled water;

[0023] Preset compensation values ​​and use the correction factor formula to calculate the UV-visible spectroscopy correction factor;

[0024] Using the absorbance formula, calculate the absorbance of water quality samples at each real-time water quality monitoring point at each wavelength;

[0025] The correction coefficient formula is:

[0026]

[0027] In the formula, is the correction factor, is the spectrum value of distilled water, is the dark background spectrum, is the compensation value, is the reference optical path spectrum value;

[0028] The absorbance formula is:

[0029]

[0030] In the formula, is the absorbance of the water sample, To measure the optical path spectrum value.

[0031] Preferably, the method of calculating the concentration of each pollutant in the water quality sample at each real-time water quality monitoring point based on the absorbance of the water quality sample at each wavelength using the Lambert-Beer law specifically includes:

[0032] Obtain the absorption coefficient of each pollutant in the water quality sample at each real-time water quality monitoring point;

[0033] Record the measuring chamber length of the dual-light path detection instrument as the optical path length;

[0034] Using the Lambert-Beer law, the concentration of each pollutant in the water quality samples at each real-time water quality monitoring point is calculated;

[0035] The Beer-Lambert law is:

[0036]

[0037] In the formula, is the absorbance value of the i-th pollutant at this wavelength, is the absorption coefficient of the i-th pollutant, is the concentration of the i-th pollutant in the water sample to be tested, It is the optical path length of light passing through the water sample to be tested.

[0038] Preferably, the two-dimensional water quality diffusion model of the target water area is constructed based on the concentration of each pollutant in the water quality samples of the real-time water quality monitoring points on the same horizontal plane, specifically including:

[0039] Set the longitude direction of the target water area as the X-axis direction, and the latitude direction as the Y-axis direction;

[0040] Obtain the flow velocity in the X-axis and Y-axis directions and the pollutant concentration attenuation rate constant of the target water area at each real-time water quality monitoring point;

[0041] Preset the lateral diffusion coefficient and longitudinal diffusion coefficient of pollutants;

[0042] Based on the concentration of each pollutant in the water quality samples at the real-time water quality monitoring points on the same horizontal plane, a two-dimensional water quality diffusion model of the target water area is constructed;

[0043] The two-dimensional water quality diffusion model is:

[0044]

[0045] In the formula, is the pollutant concentration, , are the flow velocities in the X-axis and Y-axis directions of the target water area at each real-time water quality monitoring point, , are the lateral diffusion coefficient and longitudinal diffusion coefficient of pollutants, is the pollutant concentration decay rate constant.

[0046] Preferably, the locating the pollution source of the target water area through the two-dimensional water quality diffusion model of the target water area specifically includes:

[0047] The solution of the two-dimensional water quality diffusion model equation of the target water area is deduced based on its structural formula, and the concentration function of various pollutants is obtained;

[0048] Obtain the maximum value of each type of pollutant concentration function and the location of the maximum pollutant concentration, and set the location of the maximum pollutant concentration as the pollution source of the target waters;

[0049] The pollutant concentration function is:

[0050]

[0051] In the formula, is the pollutant concentration function of the target waters, It is the pollutant concentration at the pollution source of the target water area.

[0052] Preferably, the obtaining of the pollution source types of the target waters and taking corresponding water pollution complex control measures based on the pollution source types specifically include:

[0053] Obtain the types of pollution sources in the target waters;

[0054] Determine whether the pollution source is an industrial pollution source. If so, promote clean production, use non-toxic and harmless raw materials and products, reform production processes, reduce wastewater discharge, and ensure that wastewater meets national and local emission standards before discharge. If not, do not discharge it;

[0055] Determine whether the pollution source type is a domestic pollution source. If so, promote the use of water-saving appliances, improve public awareness of water conservation, reduce water consumption, and reduce domestic sewage discharge. If not, no output will be made;

[0056] Determine whether the pollution source type is an agricultural pollution source. If so, promote scientific fertilization and rational use of pesticides to reduce the amount of nitrogen, phosphorus and pesticides contained in agricultural runoff. If not, no output will be made.

[0057] Furthermore, a water pollution complex control system based on real-time monitoring of water pollution is proposed, which is used to implement the water pollution complex control method based on real-time monitoring of water pollution as described above, including:

[0058] A water quality sampling module, which is used to sample the water quality of the target water area through the water quality sampling equipment carried by the real-time water quality monitoring point to obtain water quality samples at each real-time water quality monitoring point;

[0059] A water quality detection module, the water quality detection module is used to measure the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength using ultraviolet visible spectroscopy through a dual-light path detection instrument, calculate the concentration of each pollutant in the water quality samples at each water quality real-time monitoring point based on the absorbance of the water quality samples at each wavelength using the Lambert-Beer law, and the concentration of each pollutant in the water quality samples at the water quality real-time monitoring points on the same horizontal plane, construct a two-dimensional water quality diffusion model for the target water area, and locate the location of the pollution source in the target water area through the two-dimensional water quality diffusion model for the target water area;

[0060] The pollution control module is used to obtain the pollution source types of the target water area and take corresponding water pollution complex control measures based on the types of various pollution sources.

[0061] Optionally, the water quality detection module includes:

[0062] An absorbance measuring unit, which is used to measure the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength using ultraviolet visible spectroscopy through a dual light path detection instrument;

[0063] A concentration calculation unit, the concentration calculation unit is used to calculate the concentration of each pollutant in the water quality sample at each water quality real-time monitoring point based on the absorbance of the water quality sample at each wavelength using the Lambert-Beer law;

[0064] A model building unit, the model building unit is used to build a two-dimensional water quality diffusion model of the target water area based on the concentration of each pollutant in the water quality samples of the real-time water quality monitoring points on the same horizontal plane;

[0065] A pollution source positioning unit is used to locate the position of the pollution source of the target water area through a two-dimensional water quality diffusion model of the target water area.

[0066] Compared with the prior art, the present invention has the following beneficial effects:

[0067] By setting up a water quality sampling module, a water quality detection module and a pollution control module, water quality sampling of the target water area can be achieved, and then more demand analysis can be performed on the water samples to track and locate the source of pollution. It can be used for aquaculture monitoring, rivers, lakes, urban rivers and more complex water areas. It is a dynamic water quality environment monitoring platform with a wider range of adaptability, stronger monitoring capabilities and remote control. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 It is a flow chart of the water pollution composite treatment method based on real-time monitoring of water pollution of the present invention;

[0069] Figure 2 The present invention is a flow chart of a method for sampling water quality in a target water area;

[0070] Figure 3 It is a flow chart of the method for measuring the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength of the present invention;

[0071] Figure 4 A flow chart of a method for calculating the concentration of each pollutant in a water quality sample at each real-time water quality monitoring point of the present invention;

[0072] Figure 5 A flow chart of a method for constructing a two-dimensional water quality diffusion model of a target water area according to the present invention;

[0073] Figure 6 A flow chart of a method for locating a pollution source in a target water area according to the present invention;

[0074] Figure 7 This is a flow chart of the method for taking corresponding water pollution composite control measures based on various types of pollution sources in the present invention. DETAILED DESCRIPTION

[0075] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0076] Reference Figure 1 As shown, the water pollution complex control method based on real-time monitoring of water pollution includes:

[0077] The water quality of the target water area is sampled by the water quality sampling equipment installed at the real-time water quality monitoring point to obtain water quality samples at each real-time water quality monitoring point;

[0078] The absorbance of water quality samples at each water quality real-time monitoring point at each wavelength is measured by ultraviolet visible spectroscopy through a dual light path detection instrument;

[0079] Based on the absorbance of water samples at each wavelength, the Lambert-Beer law is used to calculate the concentration of each pollutant in the water samples at each real-time water quality monitoring point;

[0080] Based on the concentration of each pollutant in the water quality samples at the real-time water quality monitoring points on the same horizontal plane, a two-dimensional water quality diffusion model of the target water area is constructed;

[0081] Locate the pollution source of the target water area through a two-dimensional water quality diffusion model of the target water area;

[0082] Obtain the types of pollution sources in the target waters and take corresponding water pollution complex control measures based on the types of pollution sources.

[0083] Reference Figure 2 As shown, the water quality of the target water area is sampled by the water quality sampling equipment installed at the real-time water quality monitoring point, and the water quality samples at each real-time water quality monitoring point specifically include:

[0084] Place at least one real-time water quality monitoring point upstream and downstream of the target waters;

[0085] Sink the sampler into the water to the same level, and turn on the sampler to collect water quality samples;

[0086] Label water quality samples with the location, date, and time of collection.

[0087] Reasonable sampling locations for real-time water quality monitoring points should be determined based on the hydrological characteristics of the target water area, distribution of pollution sources and monitoring needs. The sampling locations for real-time water quality monitoring points should be representative and able to reflect the water quality conditions in the area.

[0088] Reference Figure 3 As shown, the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength is measured by using a dual-light path detection instrument using ultraviolet visible spectroscopy, specifically including:

[0089] When the dual-light path test instrument is in operation, the light emitted by the internal xenon lamp source is divided into two beams;

[0090] A beam of light passes through the measuring chamber and through the water quality sample to be measured, which is set as the measuring light path, and the spectrum value of the measuring light path is recorded;

[0091] The other beam is set as a reference light path, which does not pass through the water quality sample to be tested, and the spectrum value of the reference light path is recorded;

[0092] The spectrum obtained when the xenon lamp is not triggered is set as the dark background spectrum;

[0093] Get the spectrum value of distilled water;

[0094] Preset compensation values ​​and use the correction factor formula to calculate the UV-visible spectroscopy correction factor;

[0095] Using the absorbance formula, calculate the absorbance of water quality samples at each real-time water quality monitoring point at each wavelength;

[0096] The correction coefficient formula is:

[0097]

[0098] In the formula, is the correction factor, is the spectrum value of distilled water, is the dark background spectrum, is the compensation value, is the reference optical path spectrum value;

[0099] The absorbance formula is:

[0100]

[0101] In the formula, is the absorbance of the water sample, To measure the optical path spectrum value.

[0102] Absorbance is a term in physics and chemistry. It refers to the logarithm to the base 10 of the ratio of the intensity of incident light before it passes through a solution or a substance to the intensity of transmitted light after it passes through the solution or a substance. Factors that affect it include solvent, concentration, temperature, etc.

[0103] Reference Figure 4 As shown, based on the absorbance of the water quality sample at each wavelength, the Lambert-Beer law is used to calculate the concentration of each pollutant in the water quality sample at each real-time water quality monitoring point, specifically including:

[0104] Obtain the absorption coefficient of each pollutant in the water quality sample at each real-time water quality monitoring point;

[0105] Record the measuring chamber length of the dual-light path detection instrument as the optical path length;

[0106] Using the Lambert-Beer law, the concentration of each pollutant in the water quality samples at each real-time water quality monitoring point is calculated;

[0107] The Beer-Lambert law is:

[0108]

[0109] In the formula, is the absorbance value of the i-th pollutant at this wavelength, is the absorption coefficient of the i-th pollutant, is the concentration of the i-th pollutant in the water sample to be tested, It is the optical path length of light passing through the water sample to be tested.

[0110] Lambert-Beer's law is the basic law of light absorption. It describes the relationship between the strength of a substance's absorption of light of a certain wavelength and the concentration of the absorbing substance and the thickness of its liquid layer. It is applicable to all electromagnetic radiation and all absorbing substances, including gases, solids, liquids, molecules, atoms and ions. It is the theoretical basis of colorimetric analysis and spectrophotometry. The amount of light absorbed is proportional to the number of molecules that produce light absorption in the light path.

[0111] Reference Figure 5 As shown in the figure, based on the concentration of each pollutant in the water quality samples at the real-time water quality monitoring points on the same horizontal plane, the two-dimensional water quality diffusion model of the target water area is constructed, which specifically includes:

[0112] Set the longitude direction of the target water area as the X-axis direction, and the latitude direction as the Y-axis direction;

[0113] Obtain the flow velocity in the X-axis and Y-axis directions and the pollutant concentration attenuation rate constant of the target water area at each real-time water quality monitoring point;

[0114] Preset the lateral diffusion coefficient and longitudinal diffusion coefficient of pollutants;

[0115] Based on the concentration of each pollutant in the water quality samples at the real-time water quality monitoring points on the same horizontal plane, a two-dimensional water quality diffusion model of the target water area is constructed;

[0116] The two-dimensional water quality diffusion model is:

[0117]

[0118] In the formula, is the pollutant concentration, , are the flow velocities in the X-axis and Y-axis directions of the target water area at each real-time water quality monitoring point, , are the lateral diffusion coefficient and longitudinal diffusion coefficient of pollutants, is the pollutant concentration decay rate constant.

[0119] The two-dimensional water quality diffusion model is used in many practical situations. The vertical transfer of pollutants is low and can be ignored in the modeling process. The concentration distribution in the water depth direction can be regarded as uniform, which is sufficient to calculate the average depth characteristic of the water flow without obtaining the detailed vertical distribution of pollutants in the water. It is mainly used in situations where the river surface is wide and shallow and there are sewage outlets that need to protect water resources.

[0120] Reference Figure 6 As shown, through the two-dimensional water quality diffusion model of the target water area, the location of the pollution source of the target water area is specifically located including:

[0121] The solution of the two-dimensional water quality diffusion model equation of the target water area is deduced based on its structural formula, and the concentration function of various pollutants is obtained;

[0122] Obtain the maximum value of each pollutant concentration function and the location of the maximum pollutant concentration, and set the location of the maximum pollutant concentration as the pollution source of the target waters;

[0123] The pollutant concentration function is:

[0124]

[0125] In the formula, is the pollutant concentration function of the target waters, It is the pollutant concentration at the pollution source of the target water area.

[0126] The molecular diffusion process refers to the dispersion phenomenon caused by the systematic difference between the average value of the intermittent flow velocity at each point in space and the spatial average value of the average value of the flow velocity. It can be described by Fick's first law, that is, the mass flux of molecular diffusion is proportional to the turbulent average concentration gradient of the dispersed substance.

[0127] Reference Figure 7 As shown, the pollution source types of the target waters are obtained, and corresponding water pollution complex control measures are taken based on the types of pollution sources, including:

[0128] Obtain the types of pollution sources in the target waters;

[0129] Determine whether the pollution source is an industrial pollution source. If so, promote clean production, use non-toxic and harmless raw materials and products, reform production processes, reduce wastewater discharge, and ensure that wastewater meets national and local emission standards before discharge. If not, do not discharge it;

[0130] Determine whether the pollution source type is a domestic pollution source. If so, promote the use of water-saving appliances, improve public awareness of water conservation, reduce water consumption, and reduce domestic sewage discharge. If not, no output will be made;

[0131] Determine whether the pollution source type is an agricultural pollution source. If so, promote scientific fertilization and rational use of pesticides to reduce the amount of nitrogen, phosphorus and pesticides contained in agricultural runoff. If not, no output will be made.

[0132] The composite water pollution control method refers to the comprehensive use of multiple technologies and means to conduct real-time monitoring, early warning, tracing, control and restoration of water pollution. The core of this method lies in the organic combination of "prevention", "control" and "management", aiming to fundamentally control water pollution and improve the quality of the water environment.

[0133] Further, based on the same inventive concept as the above-mentioned water pollution composite treatment method based on real-time monitoring of water pollution, this solution also proposes a water pollution composite treatment system based on real-time monitoring of water pollution, including:

[0134] A water quality sampling module, which is used to sample the water quality of the target water area through the water quality sampling equipment carried by the real-time water quality monitoring point to obtain water quality samples at each real-time water quality monitoring point;

[0135] A water quality detection module, the water quality detection module is used to measure the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength using ultraviolet visible spectroscopy through a dual-light path detection instrument, calculate the concentration of each pollutant in the water quality samples at each water quality real-time monitoring point based on the absorbance of the water quality samples at each wavelength using the Lambert-Beer law, and the concentration of each pollutant in the water quality samples at the water quality real-time monitoring points on the same horizontal plane, construct a two-dimensional water quality diffusion model for the target water area, and locate the location of the pollution source in the target water area through the two-dimensional water quality diffusion model for the target water area;

[0136] The pollution control module is used to obtain the pollution source types of the target water area and take corresponding water pollution complex control measures based on the types of various pollution sources.

[0137] The water quality testing module includes:

[0138] An absorbance measuring unit, which is used to measure the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength using ultraviolet visible spectroscopy through a dual light path detection instrument;

[0139] A concentration calculation unit, the concentration calculation unit is used to calculate the concentration of each pollutant in the water quality sample at each water quality real-time monitoring point based on the absorbance of the water quality sample at each wavelength using the Lambert-Beer law;

[0140] A model building unit, the model building unit is used to build a two-dimensional water quality diffusion model of the target water area based on the concentration of each pollutant in the water quality samples of the real-time water quality monitoring points on the same horizontal plane;

[0141] A pollution source positioning unit is used to locate the position of the pollution source of the target water area through a two-dimensional water quality diffusion model of the target water area.

[0142] Furthermore, the present solution also proposes a computer-readable storage medium on which a computer-readable program is stored. When the computer-readable program is called, the above-mentioned water pollution complex control method based on real-time monitoring of water pollution is executed.

[0143] It is understandable that the storage medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a DVD; or a semiconductor medium, such as a solid state drive (SSD).

[0144] To sum up, the advantages of the present invention are: by setting up a water quality sampling module, a water quality detection module and a pollution control module, water quality sampling of the target water area can be achieved, and then more demand analysis can be performed on the water samples to achieve tracking and positioning of the pollution source. It can be used for aquaculture monitoring, rivers, lakes, urban rivers and more complex waters. It is a dynamic monitoring platform for water quality environment with a wider range of adaptability, stronger monitoring capabilities and remote control.

[0145] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A water pollution control method based on real-time monitoring of water pollution, characterized in that: include: The water quality of the target water area is sampled by the water quality sampling equipment installed at the real-time water quality monitoring point to obtain water quality samples at each real-time water quality monitoring point; The absorbance of water quality samples at each water quality real-time monitoring point at each wavelength is measured by ultraviolet visible spectroscopy through a dual light path detection instrument; Based on the absorbance of water samples at each wavelength, the Lambert-Beer law is used to calculate the concentration of each pollutant in the water samples at each real-time water quality monitoring point; Based on the concentration of each pollutant in the water quality samples at the real-time water quality monitoring points on the same horizontal plane, a two-dimensional water quality diffusion model of the target water area is constructed; Locate the pollution source of the target water area through a two-dimensional water quality diffusion model of the target water area; Obtain the pollution source types of the target waters and adopt corresponding water pollution complex control measures based on the pollution source types; The method of measuring the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength by using a dual light path detection instrument using ultraviolet visible spectroscopy specifically includes: When the dual-light path test instrument is in operation, the light emitted by the internal xenon lamp source is divided into two beams; A beam of light passes through the measuring chamber and through the water quality sample to be measured, which is set as the measuring light path, and the spectrum value of the measuring light path is recorded; The other beam is set as a reference light path, which does not pass through the water quality sample to be tested, and the spectrum value of the reference light path is recorded; The spectrum obtained when the xenon lamp is not triggered is set as the dark background spectrum; Get the spectrum value of distilled water; Preset compensation values ​​and use the correction factor formula to calculate the UV-visible spectroscopy correction factor; Using the absorbance formula, calculate the absorbance of water quality samples at each real-time water quality monitoring point at each wavelength; The correction coefficient formula is: Where K is the correction factor, D r is the spectrum value of distilled water, D b is the dark background spectrum, C is the compensation value, R b is the reference optical path spectrum value; The absorbance formula is: Where A is the absorbance of the water sample, S r To measure the optical path spectrum value; The two-dimensional water quality diffusion model of the target water area is constructed based on the concentration of each pollutant in the water quality samples of the real-time water quality monitoring points on the same horizontal plane, specifically including: Set the longitude direction of the target water area as the X-axis direction, and the latitude direction as the Y-axis direction; Obtain the flow velocity in the X-axis and Y-axis directions and the pollutant concentration attenuation rate constant of the target water area at each real-time water quality monitoring point; Preset the lateral diffusion coefficient and longitudinal diffusion coefficient of pollutants; Based on the concentration of each pollutant in the water quality samples at the real-time water quality monitoring points on the same horizontal plane, a two-dimensional water quality diffusion model of the target water area is constructed; The two-dimensional water quality diffusion model is: Where c is the pollutant concentration, u x ,u y are the flow velocities in the X-axis and Y-axis directions of the target water area at each real-time water quality monitoring point, D x , D y are the lateral diffusion coefficient and longitudinal diffusion coefficient of pollutants, K c is the pollutant concentration decay rate constant.

2. The water pollution complex control method based on real-time monitoring of water pollution according to claim 1 is characterized in that: The water quality sampling equipment carried by the real-time water quality monitoring point is used to sample the water quality of the target water area, and the water quality samples at each real-time water quality monitoring point are obtained, which specifically includes: Place at least one real-time water quality monitoring point upstream and downstream of the target waters; Sink the sampler into the water to the same level, and turn on the sampler to collect water quality samples; Label water quality samples with the location, date, and time of collection.

3. The water pollution complex treatment method based on real-time monitoring of water pollution according to claim 2 is characterized in that: The method of calculating the concentration of each pollutant in the water quality sample at each real-time water quality monitoring point based on the absorbance of the water quality sample at each wavelength using the Lambert-Beer law specifically includes: Obtain the absorption coefficient of each pollutant in the water quality sample at each real-time water quality monitoring point; Record the measuring chamber length of the dual-light path detection instrument as the optical path length; Using the Lambert-Beer law, the concentration of each pollutant in the water quality samples at each real-time water quality monitoring point is calculated; The Beer-Lambert law is: A i =k i c i d, In the formula, A i is the absorbance value of the i-th pollutant at this wavelength, k i is the absorption coefficient of the i-th pollutant, c i is the concentration of the i-th pollutant in the water sample to be tested, and d is the optical path length of the light when it passes through the water sample to be tested.

4. The water pollution complex treatment method based on real-time monitoring of water pollution according to claim 3 is characterized in that: The method of locating the pollution source of the target water area by using the two-dimensional water quality diffusion model of the target water area specifically includes: The solution of the two-dimensional water quality diffusion model equation of the target water area is deduced based on its structural formula, and the concentration function of various pollutants is obtained; Obtain the maximum value of each type of pollutant concentration function and the location of the maximum pollutant concentration, and set the location of the maximum pollutant concentration as the pollution source of the target waters; The pollutant concentration function is: Where c(x, y) is the pollutant concentration function of the target water area, and c0 is the pollutant concentration at the pollution source of the target water area.

5. The water pollution complex treatment method based on real-time monitoring of water pollution according to claim 4 is characterized in that: The obtaining of the pollution source types of the target waters and taking corresponding water pollution complex control measures based on the pollution source types specifically include: Obtain the types of pollution sources in the target waters; Determine whether the pollution source is an industrial pollution source. If so, promote clean production, use non-toxic and harmless raw materials and products, reform production processes, reduce wastewater discharge, and ensure that wastewater meets national and local emission standards before discharge. If not, do not discharge it; Determine whether the pollution source type is a domestic pollution source. If so, promote the use of water-saving appliances, improve public awareness of water conservation, reduce water consumption, and reduce domestic sewage discharge. If not, no output will be made; Determine whether the pollution source type is an agricultural pollution source. If so, promote scientific fertilization and rational use of pesticides to reduce the amount of nitrogen, phosphorus and pesticides contained in agricultural runoff. If not, no output will be made.

6. A water pollution control system based on real-time monitoring of water pollution, used to implement the water pollution control method based on real-time monitoring of water pollution as claimed in any one of claims 1 to 5, characterized in that: include: A water quality sampling module, which is used to sample the water quality of the target water area through the water quality sampling equipment carried by the real-time water quality monitoring point to obtain water quality samples at each real-time water quality monitoring point; A water quality detection module, the water quality detection module is used to measure the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength using ultraviolet visible spectroscopy through a dual-light path detection instrument, calculate the concentration of each pollutant in the water quality samples at each water quality real-time monitoring point based on the absorbance of the water quality samples at each wavelength using the Lambert-Beer law, and the concentration of each pollutant in the water quality samples at the water quality real-time monitoring points on the same horizontal plane, construct a two-dimensional water quality diffusion model for the target water area, and locate the location of the pollution source in the target water area through the two-dimensional water quality diffusion model for the target water area; The pollution control module is used to obtain the pollution source types of the target water area and take corresponding water pollution complex control measures based on the types of various pollution sources.

7. The water pollution complex treatment system based on real-time monitoring of water pollution according to claim 6 is characterized in that: The water quality detection module comprises: An absorbance measuring unit, which is used to measure the absorbance of water quality samples at each water quality real-time monitoring point at each wavelength using ultraviolet visible spectroscopy through a dual light path detection instrument; A concentration calculation unit, the concentration calculation unit is used to calculate the concentration of each pollutant in the water quality sample at each water quality real-time monitoring point based on the absorbance of the water quality sample at each wavelength using the Lambert-Beer law; A model building unit, the model building unit is used to build a two-dimensional water quality diffusion model of the target water area based on the concentration of each pollutant in the water quality samples of the real-time water quality monitoring points on the same horizontal plane; A pollution source positioning unit is used to locate the position of the pollution source of the target water area through a two-dimensional water quality diffusion model of the target water area.

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