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Comprehensive Early Warning Method for Groundwater Quality

A groundwater and water quality technology, applied in the direction of water testing, general water supply saving, material inspection, etc., can solve problems such as insufficient technical methods and achieve high accuracy

Active Publication Date: 2019-08-23
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

Generally speaking, the current technical methods for early warning of groundwater pollution are not perfect enough and need to be further explored

Method used

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  • Comprehensive Early Warning Method for Groundwater Quality
  • Comprehensive Early Warning Method for Groundwater Quality
  • Comprehensive Early Warning Method for Groundwater Quality

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Embodiment example

[0118] In the following, the present invention will be further specifically explained in conjunction with the accompanying drawings and implementation examples.

[0119] A livestock and poultry farm may cause a certain degree of pollution to the water quality of the surrounding Quaternary pore phreatic aquifer. Therefore, the water well G1 downstream of the groundwater flow is taken as the evaluation object, and the comprehensive early warning level of the well is determined by the groundwater comprehensive early warning method of the present invention. According to groundwater monitoring, COD in G1 is 13.1mg / L, ammonia nitrogen is 0.068mg / L, and nitrate nitrogen is 0.125mg / L.

[0120] (1) Improved Nemerow comprehensive evaluation index method to evaluate groundwater quality

[0121] ①Evaluation of various pollutant components

[0122] Taking the standard value of Category III in the "Groundwater Quality Standard" (GB14848-93) as a benchmark, calculate according to formula (1...

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Abstract

The invention provides a comprehensive underground water quality early warning method. The method comprises the steps that underground water quality situation early warning is conducted on the basis of monitored underground water quality situation data by adopting an improved Nemerow comprehensive evaluation index method, underground water quality trend early warning is conducted by adopting an underground water flow model and a solute transport model which are built through Visual MODFLOW software, and a water quality situation early warning result and a water quality trend early warning result are superposed through a matrix method to determine the comprehensive underground water quality early warning degree. According to the method, comprehensive underground water quality early warning can be effectively conducted, and a reliable scientific basis is provided for the government department to develop underground water pollution prevention work.

Description

technical field [0001] The invention relates to the field of water environment protection, and more specifically relates to a groundwater quality comprehensive early warning method, which provides a scientific basis for groundwater pollution prevention and control. Background technique [0002] Groundwater pollution early warning is based on the early warning theory. By clarifying the status, development and harm of water pollution, the level of early warning is clarified, and effective warnings are given in a timely manner to warn people of the impact of groundwater exploitation and utilization, further regulating and restricting human rights. At the same time, it lays the foundation for government departments to formulate management policies to protect groundwater resources, so as to control the evolution direction of groundwater through effective prevention and control measures. [0003] At present, the application of early warning technology to solve the problem of groun...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18
CPCG01N33/18Y02A20/20
Inventor 李翔席北斗郇环李娟张霞李鸣晓姜琦吕宁磬杨洋杨津津
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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