System and method for evidence obtaining in water body pollution-discharge cruise monitoring

A water body and water area technology, applied in the direction of electrical program control, comprehensive factory control, etc., can solve problems such as high equipment and installation costs, poor mobility and flexibility of fixed monitoring stations, and difficulty in qualitative or quantitative pollution categories and pollution degrees. To ensure the safety of water supply, eliminate the blind spots of concealed sewage discharge and illegal sewage discharge of enterprises, and realize the effect of continuous coverage in time and space

Active Publication Date: 2014-12-10
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned automatic sampling decision-making system for water pollution or the monitoring system of water pollution monitoring ships do not directly measure pollutants, but indirectly indicate water pollution to a certain extent through the monitoring of conventional water quality parameters such as pH and dissolved oxygen. Influenced by the dilution effect, the sensitivity of the water quality pollution indicator is at a low level, and it is difficult to qualitatively or quantitatively pollute the type and degree of pollution; secondly, the existing sewage discharge monitoring or water quality monitoring lacks the pollution discharge location, discharge volume, pollutant discharge concentration value or Evidence and records of pollutant discharge characteristics such as the degree of excess of the comprehensive toxicity index; moreover, these systems focus on monitoring physical parameters of conventional water bodies or responding to early warnings of algae blooms, and have insufficient monitoring capabilities for total discharge indicators such as COD and NH4-N, heavy metals and Less monitoring of toxic and hazardous substances such as persistent organic pollutants
Finally, most of the water quality monitoring at sewage outlets or sections are fixed stations. Enterprise sewage is easy to avoid fixed monitoring in time and space, and fixed monitoring stations have poor mobility and flexibility. One station only monitors one sewage outlet, and large-area water monitoring needs to be deployed. Multiple points, high equipment and installation costs

Method used

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  • System and method for evidence obtaining in water body pollution-discharge cruise monitoring
  • System and method for evidence obtaining in water body pollution-discharge cruise monitoring
  • System and method for evidence obtaining in water body pollution-discharge cruise monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: Sewage Outlet Supervision

[0050] In response to illegal sewage discharge, a single system can be deployed to each sewage outlet according to the planned route of the sewage outlet distribution confirmed by the water conservancy or environmental protection department, and it can automatically patrol the nearby waters continuously to monitor the discharge of sewage and wastewater. Once COD, NH4-N and comprehensive toxicity If the water quality parameters exceed the standard, the system will collect evidence, record and alarm, and send the illegal or concealed sewage discharge information of the water body, such as the pollutant discharge concentration value or comprehensive toxicity index, discharge volume, discharge point location, and discharge process pictures, to the land command center for water conservancy. Or the environmental protection law enforcement and supervision department shall stop the discharge in time and make corresponding treatment.

Embodiment 2

[0051] Example 2: Water Intake Supervision

[0052] In order to deal with sudden water pollution and ensure the safety of drinking water for residents, a single system is deployed at each drinking water intake in each river basin to automatically patrol. Once the COD, NH4-N and comprehensive toxicity monitoring results exceed the water quality standard of the water source or the comprehensive toxicity of the water quality Reference value, the system will automatically alarm, inform the land command center that there is sudden water pollution at the water intake, stop water intake and take corresponding measures.

Embodiment 3

[0053] Example 3: Supervision of multiple sewage outlets in large water areas

[0054] In addition to monitoring a single sewage outlet or water intake, the system can also be grouped to cover a certain river section or lake water area. by Figure 4 For example, when the monitoring water area is large and there are multiple sewage outlets, the radius of the water area when the pollutants diffuse and dilute in the water body to the discharge limit value of the "Integrated Wastewater Discharge Standard" GB8978-1996 or the comprehensive toxicity reference value of water quality after sewage discharge r i and duration t i , which is determined as the maximum blowdown influence range and the minimum tour time interval of a single blowdown outlet. Set the cruising distance between the sewage discharge influence ranges of two adjacent sewage outlets as S i , the total length of the cruise path of the sewage monitoring system ΣS i , the minimum cruising speed of a single sewage c...

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Abstract

The invention discloses a system for evidence obtaining in water body pollution-discharge cruise monitoring. The system comprises a housing, as well as a pollution-discharge information obtaining unit, a data acquisition and processing unit, an underwater video camera, a control unit, a wireless communication unit and a power propeller which are installed on the housing, wherein the data acquisition and processing unit is used for calculating a pollutant concentration value or the standard-exceeding degree of a comprehensive toxicity index according to the water body pollution-discharge data obtained by the pollution-discharge information obtaining unit in real time, and sending to the control unit; the control unit is used for starting the underwater video camera to carry out pollution-discharge process shooting evidence obtaining while identifying that the concentration value of the pollutants discharged by a water area or the standard-exceeding degree of the comprehensive toxicity index achieves the maximum value. The system disclosed by the invention is capable of carrying out cruise monitoring on the hidden illegal pollutant discharge and sudden water pollution of various water bodies with a single pollutant discharge port or water intake port, realizing space-time continuous coverage monitoring for large-area water areas, a plurality of pollutant discharge ports and sudden water pollution through system marshalling, and avoiding the law enforcement supervision blind areas of water conservancy and environmental protection departments on water body hidden pollution and other illegal pollutant discharge behaviours.

Description

technical field [0001] The invention relates to the technical field of water body sewage discharge monitoring, in particular to a water body sewage discharge parade monitoring and evidence collection system and method. Background technique [0002] Good water quality is the guarantee for timely, continuous, stable and reliable access to water resources products and maintenance of a good ecological environment. According to the latest "China Water Resources Bulletin" released by the Ministry of Water Resources, 50.9% of the lakes in my country have water quality of Class IV to V, and 52.6% of the water function areas do not meet the water quality standards. Serious water pollution has greatly restricted the sustainable development of the economy and society. In order to effectively protect water quality and supervise sewage discharge, environmental protection departments require enterprises to install online water quality monitoring systems at sewage outlets, and water conser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
Inventor 汤显强李青云吴敏林莉赵伟华
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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