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Rapid diagnosis method for groundwater pollution

A groundwater pollution and rapid diagnosis technology, which is applied in the direction of general water supply saving, test water, material inspection products, etc., can solve the problems of difficult to guarantee the effect of pollution control and cost control, long test cycle, rapid identification, etc., to promote the technological progress of the industry , Reduce investigation costs and improve efficiency

Active Publication Date: 2018-03-23
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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  • Claims
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Problems solved by technology

[0003] At present, the investigation of groundwater pollution on site mainly relies on on-site sampling and laboratory testing and analysis. The randomness of sampling points is strong, the loss of pollutants caused by sampling disturbance is large, the test cycle is long, and the cost is high. Discrimination, and errors in determining the scope of pollution are prone to occur, making it difficult to guarantee the effect and cost control of pollution control in the later stage

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  • Rapid diagnosis method for groundwater pollution
  • Rapid diagnosis method for groundwater pollution
  • Rapid diagnosis method for groundwater pollution

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Embodiment 1

[0047] Embodiment 1: This embodiment specifically relates to a rapid diagnosis method for groundwater pollution, which specifically includes the following steps:

[0048] (1) Collect environmental hydrogeological data of shallow soil layers in soft soil areas, and divide them into Type I, Type II, Type III, and Type IV according to stratum combination types. The soft soil areas in this example can be classified according to administrative divisions Collection, such as within the scope of counties, cities, and provinces, the soft soil area in this embodiment is selected as the shallow formation within 20 meters below the ground in the Shanghai area; wherein:

[0049] Type I strata combination types from top to bottom are filling soil layer, hard crust layer, silty soil layer or silt layer, and silty clay layer;

[0050] The stratum combination types of type II are filled soil layer, hard shell layer, and silty clay layer from top to bottom, and silty soil layer or silt layer is...

Embodiment 2

[0092] Embodiment 2: This embodiment specifically relates to a rapid diagnosis method for groundwater pollution, and is explained in conjunction with actual engineering cases:

[0093] (1) Obtain the classification rules of strata combination types in soft soil areas;

[0094] (2) if figure 1 As shown, a polluted site 1 covers an area of ​​about 29000m 2 , the shallow strata buried within 20m in the site are mainly filled with the ① layer, and the ② layer 1 Layer silty clay, second 3 It is composed of 4 soil layers including clayey silt soil (partially mixed with sand) and silty clay layer ④. Among them, the second 3 Layers of clayey silt are generally distributed, with a thickness of about 6-8m, which is conducive to the migration of pollutants. That is to say, the contaminated site 1 in this embodiment belongs to Type I formation combination type.

[0095] (3) After that, it was discovered through investigation that the west, north, and south sides of the polluted site...

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Abstract

The invention discloses a rapid diagnosis method for groundwater pollution, wherein the method comprises the following steps: collecting environmental hydrogeology condition information of shallow soil layers in a soft soil area, and dividing according to the stratum combination type; determining a belonging stratum combination type of a pollution site; determining internal and external river distribution conditions of the pollution site; according to the belonging stratum combination type of the pollution site and the internal and external river distribution conditions, preliminarily evaluating the migration diffusion direction and the pollution depth of a pollution source in the pollution site; according to the preliminary assessment conclusion, setting a plurality of in-situ test pointsin the corresponding area and depth in the pollution site, to rapid measure a space distribution condition of pollutants; and according to the on-site measured pollutant space distribution conditions, sampling and monitoring on site in a key pollution area. The method has the advantages: the establishment of the rapid diagnosis method provides a perfect theoretical basis, technical method and tool device for improving the efficiency and effect of groundwater pollution investigation and reducing the cost of investigation.

Description

technical field [0001] The invention belongs to the technical field of environmental geotechnical engineering, and in particular relates to a rapid diagnosis method for groundwater pollution. Background technique [0002] Groundwater resources are important strategic resources to support the sustainable development of society. The amount of groundwater resources in my country accounts for about 1 / 3 of the total water resources in the country. With the development of our country's social economy, the situation of groundwater pollution is becoming increasingly serious, and the problem of groundwater pollution in some areas is very prominent. Groundwater pollution presents an expansion trend from point to surface, from shallow to deep, and from urban to rural areas. The degree of pollution is becoming more and more serious. Groundwater pollution hazards occur frequently and cause serious harm. It is urgent to carry out investigation, assessment and treatment of groundwater poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18
CPCG01N33/18Y02A20/20
Inventor 许丽萍王蓉李韬沈超李梅沈婷婷冯凯
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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