Shallow groundwater pollutant monitoring system

A monitoring system and groundwater technology, which is applied in the fields of environmental science, groundwater pollution and soil science research, can solve problems that cannot truly reflect complex and changeable field conditions, achieve simple and fast sampling process, efficient collection operation, and reduce the difficulty of sampling Effect
CN113834698AActive Publication Date: 2021-12-24NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
Publication Date
2021-12-24

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Abstract

The invention discloses a shallow groundwater pollutant monitoring system which comprises a monitoring well and a sampling assembly, and the monitoring well is sequentially divided into a protection column, a middle column and a collection column from top to bottom; the upper part and the lower part of the collecting column are respectively a cylinder and a cone, a plurality of groups of small holes for underground water to permeate are circumferentially formed in the pipe wall of the collecting column positioned at the lower part of the cylinder, and a filter material replacing assembly is arranged on the inner wall of the collecting column positioned below the small holes. The system is suitable for monitoring water quality observation indexes of underground water, especially in-situ monitoring is realized, and the sampling difficulty is reduced and the sampling process is simple and rapid under the condition of monitoring shallow underground water at different depths.
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Description

technical field

[0001] The invention relates to the technical fields of environmental science, groundwater pollution and soil science research, in particular to a shallow groundwater pollutant monitoring system. Background technique

[0002] With the development of agricultural modernization, the extensive use of chemical fertilizers and pesticides has become the most important factor in soil environmental pollution. Among them, pesticide residues have a serious impact on the water environment. The study found that the amount of water-soluble pesticides accounts for more than 50% of the total pesticides. After being applied to the paddy field, it is mostly dissolved in the paddy field water, and it is easy to pollute the water environment through surface runoff and soil leakage.

[0003] Shallow groundwater refers to the aquifer within 60 meters below the surface. Due to its shallow burial layer and no deep rock filtration, the water body is easily polluted by sewage disch...

Claims

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