A water quality monitoring system for sewage outlets into rivers

Abstract

The present invention relates to the technical field of monitoring of sewage outlets into rivers, and specifically discloses a water quality monitoring system for sewage outlets into rivers. The present invention not only monitors the real-time discharge status of the water quality of the sewage outlets into rivers through a field monitoring unit, but also collects water quality at the sewage outlets into rivers and simulates temperature changes through an environmental simulation module and an experimental monitoring unit to monitor the water quality status of the sewage outlets into rivers. At the same time, the monitored data is analyzed according to a data analysis module. Considering that certain pollutants in the water quality of the sewage outlets will undergo chemical changes with temperature changes, the water quality of the sewage outlets into rivers can be judged more accurately.

Description

Technical Field

[0001] The invention relates to the technical field of monitoring sewage outlets into rivers, and in particular discloses a water quality monitoring system for sewage outlets into rivers. Background Art

[0002] With the acceleration of industrialization, water pollution is becoming increasingly serious, with water quality pollution from river outfalls being one of the main sources. River outfalls are outlets that discharge sewage into rivers and lakes, either directly or through ditches, canals, pipelines, and other facilities. After river and lake water treatment is completed, if there are unauthorized or leaked discharges at these outlets, the effectiveness of the treatment efforts will be significantly compromised. To maintain the results of previous work, effectively combat unauthorized or leaked discharges, and ensure that discharge from river outfalls does not pollute the receiving water bodies, it is crucial to conduct water quality monitoring at these outlets.

[0003] The existing water quality monitoring system for sewage outlets into rivers only performs on-site monitoring of the current sewage discharge status of the water quality at the sewage outlets into rivers, but does not take into account that certain pollutants in the water quality will change with temperature changes. However, there are certain limitations in on-site monitoring, and it is impossible to achieve temperature regulation and maintain the status of the monitoring sensor in the external environment for a long time. Therefore, the present invention provides a water quality monitoring system for sewage outlets into rivers. Summary of the Invention

[0004] The purpose of the present invention is to provide a water quality monitoring system for sewage outlets into rivers, so as to solve the problems faced in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A water quality monitoring system for a sewage outlet into a river, the system comprising a sewage outlet water quality monitoring module, an environmental simulation module, a data analysis module, a status assessment module and an early warning module;

[0007] The sewage outlet water quality monitoring module includes a field monitoring unit and an experimental monitoring unit;

[0008] The field monitoring unit is used to set sensors at preset locations of the sewage outlet into the river to monitor pollutant parameters in the water quality of the sewage outlet into the river in real time;

[0009] The experimental monitoring unit is used to collect water quality at the sewage outlet into the river and monitor pollutant parameters in the water quality at the sewage outlet into the river in real time under different environmental simulations;

[0010] The environmental simulation module is used to adjust the environmental parameters of the water quality of the sewage outlet into the river according to the monitoring strategy of the experimental monitoring unit;

[0011] The data analysis module is used to analyze the sewage outlet water quality monitoring module, obtain the first water quality status evaluation coefficient based on the data monitored by the field monitoring unit, and obtain the second water quality status evaluation coefficient based on the data monitored by the experimental monitoring unit;

[0012] The state assessment module is used to assess the water quality of the sewage outlet into the river based on the first assessment coefficient and the second assessment coefficient;

[0013] The early warning module is used to issue a real-time early warning according to the evaluation result of the status evaluation module.

[0014] As a further description of the solution of the present invention, the working process of the field monitoring unit includes:

[0015] Sensors are installed at preset locations of sewage outlets into the river to monitor the water quality at the outlets and the changes in pollutants in the water over time during the discharge process;

[0016] The working process of the experimental monitoring unit includes:

[0017] Collect the water quality of the sewage outlet into the river, and monitor the water quality of the sewage outlet into the river in real time. The ambient temperature of the water quality at the sewage outlet into the river is within the set change range, and the data of the pollutants in the water change over time.

[0018] As a further description of the solution of the present invention, the analysis process of obtaining the first evaluation coefficient of the water quality state includes:

[0019] The first assessment coefficient A1 of water quality status is calculated by the following formula:

[0020]

[0021] Where n is the number of pollutants in the water that need to be monitored, i belongs to [1, n], f i (t) is the actual curve of the monitoring item of the i-th pollutant changing with time during field monitoring, f i0 (t) is the time-varying early warning curve of the i-th pollutant monitoring item during field monitoring, t1 is the initial monitoring time point during field monitoring, t2 is the end monitoring time point during field monitoring, Δt=t2-t1, max[f i (t)] is the f in the time period t1-t2 i The maximum value of (t), min[f i (t)] is the f in the time period t1-t2 i The minimum value of (t), For the time period The maximum value of α i is the first weight coefficient, β i is the second weight coefficient.

[0022] As a further description of the solution of the present invention, the analysis process of obtaining the second evaluation coefficient of the water quality state includes:

[0023] The second assessment coefficient A2 of water quality status is calculated by the following formula:

[0024]

[0025] Where n is the number of pollutants in the water that need to be monitored, i belongs to [1, n], g i (t) is the actual curve of the monitoring item of the i-th pollutant changing with time during experimental monitoring, ρ i is the conversion coefficient of the i-th pollutant monitoring item, γ i is the third weight coefficient, δ i is the fourth weight coefficient, t3 is the initial monitoring time point during the experimental monitoring, and t4 is the end monitoring time point during the experimental monitoring.

[0026] As a further description of the solution of the present invention, the first weight coefficient α i , the second weight coefficient β i Determined according to the degree of influence of different pollutants on the first assessment coefficient;

[0027] The third weight coefficient γ i and the fourth weight coefficient δ i It is determined based on the degree of influence of different pollutants on the second evaluation coefficient.

[0028] As a further description of the solution of the present invention, the working process of the status assessment module includes:

[0029] The first evaluation coefficient A1 of the water quality state is compared with the preset first evaluation coefficient threshold A 1th If the first evaluation coefficient A1 of the water quality state is greater than or equal to the first evaluation coefficient threshold A 1th , it means that the water quality of the sewage outlet does not meet the discharge requirements. If the first evaluation coefficient A1 of the water quality state is less than the first evaluation coefficient threshold A 1th , further evaluation will be conducted.

[0030] As a further description of the solution of the present invention, the working process of the further evaluation includes:

[0031] The second evaluation coefficient A2 of the water quality state is compared with the preset second evaluation coefficient threshold A 2th If the second evaluation coefficient A2 of the water quality state is greater than or equal to the second evaluation coefficient threshold A 2th , it means that the water quality of the sewage outlet does not meet the discharge requirements. If the second evaluation coefficient A2 of the water quality state is less than the second evaluation coefficient threshold A 2th , further evaluation will be conducted.

[0032] As a further description of the solution of the present invention, the working process of the further evaluation includes:

[0033] Substitute the first assessment coefficient A1 and the second assessment coefficient A2 into the following formula to calculate the third assessment coefficient of the sewage outlet water quality:

[0034] A3=A1*|A1-A 1th |+k2*|A2-A 2th |;

[0035] The third evaluation coefficient A3 of the water quality state is compared with the preset third evaluation coefficient threshold A 3th If the third evaluation coefficient a3 of the water quality state is greater than or equal to the third evaluation coefficient threshold a 3th , it means that the water quality at the sewage outlet may not meet the discharge requirements, and an early warning will be issued immediately through the early warning module.

[0036] Beneficial effects of the present invention:

[0037] The present invention not only monitors the real-time discharge status of the water quality of the sewage outlet into the river through the on-site monitoring unit, but also collects the water quality of the sewage outlet into the river and simulates the temperature change through the environmental simulation module and the experimental monitoring unit to monitor the water quality status of the sewage outlet into the river. At the same time, the monitored data is analyzed according to the data analysis module. Taking into account that some pollutants in the water quality of the sewage outlet will undergo chemical changes with temperature changes, the water quality of the sewage outlet into the river can be judged more accurately.

[0038] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a schematic diagram of the overall structure of the water quality monitoring system for the sewage outlet into the river of the present invention. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] See also Figure 1 As shown, a water quality monitoring system for a sewage outlet into a river, the system includes a sewage outlet water quality monitoring module, an environmental simulation module, a data analysis module, a status assessment module and an early warning module;

[0043] The sewage outlet water quality monitoring module includes a field monitoring unit and an experimental monitoring unit;

[0044] The field monitoring unit is used to set sensors at preset locations of the sewage outlet into the river to monitor pollutant parameters in the water quality of the sewage outlet into the river in real time;

[0045] The experimental monitoring unit is used to collect water quality at the sewage outlet into the river and monitor pollutant parameters in the water quality at the sewage outlet into the river in real time under different environmental simulations;

[0046] The environmental simulation module is used to adjust the environmental parameters of the water quality of the sewage outlet into the river according to the monitoring strategy of the experimental monitoring unit;

[0047] The data analysis module is used to analyze the sewage outlet water quality monitoring module, obtain the first water quality status evaluation coefficient based on the data monitored by the field monitoring unit, and obtain the second water quality status evaluation coefficient based on the data monitored by the experimental monitoring unit;

[0048] The state assessment module is used to assess the water quality of the sewage outlet into the river based on the first assessment coefficient and the second assessment coefficient;

[0049] The early warning module is used to issue a real-time early warning according to the evaluation result of the status evaluation module.

[0050] In order to realize the monitoring of water quality of sewage outlets into rivers, taking into account that certain pollutants in the water quality of sewage outlets will undergo chemical changes with temperature changes, the present invention not only monitors the real-time discharge status of the water quality of sewage outlets into rivers through the field monitoring unit, but also collects the water quality of the sewage outlets into rivers and simulates temperature changes through the environmental simulation module and the experimental monitoring unit to monitor the water quality status of the sewage outlets into rivers. At the same time, the monitored data is analyzed according to the data analysis module to more accurately realize the judgment of the water quality of sewage outlets into rivers.

[0051] As a further description of the solution of the present invention, the working process of the field monitoring unit includes:

[0052] Sensors are installed at preset locations of sewage outlets into the river to monitor the water quality at the outlets and the changes in pollutants in the water over time during the discharge process;

[0053] The working process of the experimental monitoring unit includes:

[0054] Collect the water quality of the sewage outlet into the river, and monitor the water quality of the sewage outlet into the river in real time. The ambient temperature of the water quality at the sewage outlet into the river is within the set change range, and the data of the pollutants in the water change over time.

[0055] As a further description of the solution of the present invention, the analysis process of obtaining the first evaluation coefficient of the water quality state includes:

[0056] The first assessment coefficient A1 of water quality status is calculated by the following formula:

[0057]

[0058] Where n is the number of pollutants in the water that need to be monitored, i belongs to [1, n], f i (t) is the actual curve of the monitoring item of the i-th pollutant changing with time during field monitoring, f i0 (t) is the time-varying early warning curve of the i-th pollutant monitoring item during field monitoring, t1 is the initial monitoring time point during field monitoring, t2 is the end monitoring time point during field monitoring, Δt=t2-t1, max[f i (t)] is the f in the time period t1-t2 i The maximum value of (t), min[f i (t)] is the f in the time period t1-t2 i The minimum value of (t), For the time period The maximum value of α i is the first weight coefficient, β i is the second weight coefficient.

[0059] Through the above technical solution, the monitoring strategy of this embodiment is to conduct on-site monitoring of the water quality of the sewage outlet into the river, set up sensors at the preset location points of the sewage outlet into the river, monitor the water quality of the sewage outlet during the discharge process, and monitor the changes in the pollutants in the water over time. Then, the collected data is substituted into the formula Calculate the first evaluation coefficient A1 of water quality status, where f i (t) is the actual curve of the monitoring item of the i-th pollutant changing with time during field monitoring, f i0 (t) is the early warning curve of the i-th pollutant monitoring item changing with time during field monitoring, is the state of the cumulative amount of the i-th pollutant during the emission process relative to the standard value, Indicates the overall change state of the i-th pollutant during the emission process, It represents the overall change rate state of the i-th pollutant during the discharge process, and then realizes the calculation of the water quality state coefficient of the river discharge outlet under a fixed temperature environment.

[0060] It should be noted that αi and β i It is empirical data, determined according to the degree of impact of different pollutants on water quality under a fixed temperature environment.

[0061] As a further description of the solution of the present invention, the analysis process of obtaining the second evaluation coefficient of the water quality state includes:

[0062] The second assessment coefficient A2 of water quality status is calculated by the following formula:

[0063]

[0064] Where n is the number of pollutants in the water that need to be monitored, i belongs to [1, n], g i (t) is the actual curve of the monitoring item of the i-th pollutant changing with time during experimental monitoring, ρ i is the conversion coefficient of the i-th pollutant monitoring item, γ i is the third weight coefficient, δ i is the fourth weight coefficient, t3 is the initial monitoring time point during the experimental monitoring, and t4 is the end monitoring time point during the experimental monitoring.

[0065] As a further description of the solution of the present invention, the first weight coefficient α i , the second weight coefficient β i Determined according to the degree of influence of different pollutants on the first assessment coefficient;

[0066] The third weight coefficient γ i and the fourth weight coefficient δ i It is determined based on the degree of influence of different pollutants on the second evaluation coefficient.

[0067] Through the above technical solution, this embodiment takes into account the limitations of field monitoring, and is unable to achieve temperature regulation and maintain the state of the monitoring sensor in the external environment for a long time. This embodiment collects the water quality of the sewage outlet into the river, simulates the temperature change process in the environmental simulation module, and realizes the monitoring of the water quality of the sewage outlet into the river. This embodiment collects the water quality of the sewage outlet into the river, monitors the environmental temperature of the water quality of the sewage outlet into the river in real time, and obtains the data of the change of pollutants in the water over time within the set change range, and then substitutes the data into the formula Calculate the second assessment coefficient A2 of water quality status, where: It represents the state of the change of the emission amount of the i-th pollutant relative to the standard value during the temperature change process, g i (t4) represents the current state of the i-th pollutant during the emission process during the temperature change.

[0068] It should be noted that γ iand δ i It is empirical data, determined according to the degree of impact of different pollutants on water quality under changing temperature environments.

[0069] As a further description of the solution of the present invention, the working process of the status assessment module includes:

[0070] The first evaluation coefficient A1 of the water quality state is compared with the preset first evaluation coefficient threshold A 1th If the first evaluation coefficient A1 of the water quality state is greater than or equal to the first evaluation coefficient threshold A 1th , it means that the water quality of the sewage outlet does not meet the discharge requirements. If the first evaluation coefficient A1 of the water quality state is less than the first evaluation coefficient threshold A 1th , further evaluation will be conducted.

[0071] As a further description of the solution of the present invention, the working process of the further evaluation includes:

[0072] The second evaluation coefficient A2 of the water quality state is compared with the preset second evaluation coefficient threshold A 2th If the second evaluation coefficient A2 of the water quality state is greater than or equal to the second evaluation coefficient threshold A 2th , it means that the water quality of the sewage outlet does not meet the discharge requirements. If the second evaluation coefficient A2 of the water quality state is less than the second evaluation coefficient threshold A 2th , further evaluation will be conducted.

[0073] As a further description of the solution of the present invention, the working process of the further evaluation includes:

[0074] Substitute the first assessment coefficient A1 and the second assessment coefficient A2 into the following formula to calculate the third assessment coefficient of the sewage outlet water quality:

[0075] A3=k1*|A1-A 1th |+k2*|A2-A 2th |;

[0076] The third evaluation coefficient A3 of the water quality state is compared with the preset third evaluation coefficient threshold A 3th If the third evaluation coefficient A3 of the water quality state is greater than or equal to the third evaluation coefficient threshold A 3th , it means that the water quality at the sewage outlet may not meet the discharge requirements, and an early warning will be issued immediately through the early warning module.

[0077] Through the above technical solution, this embodiment first judges the water quality state under a fixed temperature environment, and compares the first evaluation coefficient A1 of the water quality state with the preset first evaluation coefficient threshold A1. 1th If the first evaluation coefficient A1 of the water quality state is greater than or equal to the first evaluation coefficient threshold A 1th, it means that the water quality of the sewage outlet does not meet the discharge requirements. If the first evaluation coefficient A1 of the water quality state is less than the first evaluation coefficient threshold A 1th , then continue to judge the water quality status under the changing temperature environment, and compare the second evaluation coefficient A2 of the water quality status with the preset second evaluation coefficient threshold A 2th If the second evaluation coefficient A2 of the water quality state is greater than or equal to the second evaluation coefficient threshold A 2th , it means that the water quality of the sewage outlet does not meet the discharge requirements. If the second evaluation coefficient A2 of the water quality state is less than the second evaluation coefficient threshold A 2th , then substitute the first evaluation coefficient A1 and the second evaluation coefficient A2 into the formula A3 = k1*|A1-A 1th |+k2*|A2-A 2th |Calculate the third evaluation coefficient of the water quality at the sewage outlet, and compare the third evaluation coefficient A3 of the water quality status with the preset third evaluation coefficient threshold A 3th If the third evaluation coefficient A3 of the water quality state is greater than or equal to the third evaluation coefficient threshold A 3th , it means that the water quality at the sewage outlet may not meet the discharge requirements, and an early warning will be issued immediately through the early warning module.

[0078] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A water quality monitoring system for a sewage outlet into a river, characterized in that: The system includes a sewage outlet water quality monitoring module, an environmental simulation module, a data analysis module, a status assessment module and an early warning module; The sewage outlet water quality monitoring module includes a field monitoring unit and an experimental monitoring unit; The field monitoring unit is used to set sensors at preset locations of the sewage outlet into the river to monitor pollutant parameters in the water quality of the sewage outlet into the river in real time; The experimental monitoring unit is used to collect water quality at the sewage outlet into the river and monitor pollutant parameters in the water quality at the sewage outlet into the river in real time under different environmental simulations; The environmental simulation module is used to adjust the environmental parameters of the water quality of the sewage outlet into the river according to the monitoring strategy of the experimental monitoring unit; The data analysis module is used to analyze the sewage outlet water quality monitoring module, obtain the first water quality status evaluation coefficient based on the data monitored by the field monitoring unit, and obtain the second water quality status evaluation coefficient based on the data monitored by the experimental monitoring unit; The state assessment module is used to assess the water quality of the sewage outlet into the river based on the first assessment coefficient and the second assessment coefficient; The early warning module is used to issue a real-time early warning based on the evaluation results of the status evaluation module; The working process of the field monitoring unit includes: Sensors are installed at preset locations of sewage outlets into the river to monitor the water quality at the outlets and the changes in pollutants in the water over time during the discharge process; The working process of the experimental monitoring unit includes: Collect water quality data from sewage outlets into rivers, and monitor the environmental temperature of water quality at sewage outlets into rivers in real time, and the data on changes of pollutants in water over time within the set change range; The analysis process of obtaining the first evaluation coefficient of water quality status includes: The first assessment coefficient A1 of water quality status is calculated by the following formula: Where n is the number of pollutants in the water that need to be monitored, i belongs to [1, n], f i (t) is the actual curve of the change of the content of the i-th pollutant monitoring item over time during field monitoring, f i0 (t) is the early warning curve of the change of the content of the i-th pollutant monitoring item over time during field monitoring, t1 is the initial monitoring time point during field monitoring, t2 is the end monitoring time point during field monitoring, Δt=t2-t1, max[f i (t)] is the f in the time period t1-t2 i The maximum value of (t), min[f i (t)] is the f in the time period t1-t2 i The minimum value of (t), For the time period The maximum value of α i is the first weight coefficient, β i is the second weight coefficient; The analysis process of obtaining the second evaluation coefficient of water quality status includes: The second assessment coefficient A2 of water quality status is calculated by the following formula: Where n is the number of pollutants in the water that need to be monitored, i belongs to [1, n], g i (t) is the actual curve of the change of the content of the i-th pollutant monitoring item over time during experimental monitoring, g i0 (t) is the standard curve of the change of the content of the i-th pollutant monitoring item over time during the experimental monitoring, T(t) is the curve of the change of temperature over time during the experimental monitoring, ρ i is the conversion coefficient of the i-th pollutant monitoring item content, γ i is the third weight coefficient, δ i is the fourth weight coefficient, t3 is the initial monitoring time point during the experimental monitoring, and t4 is the end monitoring time point during the experimental monitoring.

2. A water quality monitoring system for a sewage outlet into a river according to claim 1, characterized in that: The first weight coefficient α i , the second weight coefficient β i Determined according to the degree of influence of different pollutants on the first assessment coefficient; The third weight coefficient γ i and the fourth weight coefficient δ i It is determined based on the degree of influence of different pollutants on the second evaluation coefficient.

3. A water quality monitoring system for a sewage outlet into a river according to claim 1, characterized in that: The working process of the status assessment module includes: The first evaluation coefficient A1 of the water quality state is compared with the preset first evaluation coefficient threshold A 1th If the first evaluation coefficient A1 of the water quality state is greater than or equal to the first evaluation coefficient threshold A 1th , it means that the water quality of the sewage outlet does not meet the discharge requirements. If the first evaluation coefficient A1 of the water quality state is less than the first evaluation coefficient threshold A 1th , further evaluation will be conducted.

4. A water quality monitoring system for a sewage outlet into a river according to claim 3, characterized in that: The further evaluation process includes: The second evaluation coefficient A2 of the water quality state is compared with the preset second evaluation coefficient threshold A 2th If the second evaluation coefficient A2 of the water quality state is greater than or equal to the second evaluation coefficient threshold A 2th , it means that the water quality of the sewage outlet does not meet the discharge requirements. If the second evaluation coefficient A2 of the water quality state is less than the second evaluation coefficient threshold A 2th , further evaluation will be conducted.

5. A water quality monitoring system for a sewage outlet into a river according to claim 4, characterized in that: The further evaluation process includes: Substitute the first assessment coefficient A1 and the second assessment coefficient A2 into the following formula to calculate the third assessment coefficient of the sewage outlet water quality: <h2 style=";text-align:left;direction:ltr">A3 = k1*|A1-A<h2 style=";text-align:left;direction:ltr"> 1th <h2 style=";text-align:left;direction:ltr"> |+k2*|A2-A<h2 style=";text-align:left;direction:ltr"> 2th <h2 style=";text-align:left;direction:ltr"> |; The third evaluation coefficient A3 of the water quality state is compared with the preset third evaluation coefficient threshold A 3th If the third evaluation coefficient A3 of the water quality state is greater than or equal to the third evaluation coefficient threshold A 3th , it means that the water quality at the sewage outlet may not meet the discharge requirements, and an early warning will be issued immediately through the early warning module.

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