The method of regional pollution control of groundwater

Abstract

The invention belongs to the technical field of groundwater treatment methods, and discloses a method for groundwater regional pollution treatment. Its main technical features are as follows: the first step is to make statistics on the water wells in the area; the second step is to take samples and test to determine the water layer of available groundwater; the third step is to determine the wells to be treated; the fourth step is to treat the water wells to be treated, First clean up the debris in the well to be treated; measure the water well to determine the position of all the water filter flower tubes on the lowermost water-bearing sand layer; use a rope to send the wire and the explosive device into the water filter flower tubes on the lowermost water-bearing sand layer in the well pipe position; inject slurry-like plugging material into the well; finally turn on the explosive device, blow up the water filter flower tube through the explosive device and fall into the well, forming a lantern-shaped hole in the water filter sand layer, and the slurry-like plugging material in the well pipe Falling under its own gravity, a barrier mud layer is formed inside the filter sand layer; the fifth step is to process all the wells to be treated according to the fourth step. It can effectively control the pollution of groundwater.

Description

technical field [0001] The invention belongs to the technical field of observation wells, and in particular relates to a method for controlling groundwater regional pollution. Background technique [0002] In the process of agricultural irrigation, drinking water source and industrial production, groundwater is generally exploited. As the water level of groundwater decreases, shallow water wells can no longer get water. In order to meet the needs of water, the depth of water wells is getting deeper and deeper. Shallow wells that cannot be filled with water are discarded. In order to prevent accidents such as falling wells, the abandoned shallow wells are sealed with end caps. [0003] The drilling steps of existing water wells are generally as follows: first drill the well hole with a drill pipe, and then hoist the well pipe. Ball packing is more troublesome. For shallow water wells, some water filter granules are generally filled, so that when rainwater or other surface w...

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Problems solved by technology

[0004] In addition, some chemical companies dig sewage seepage pits on the ground. Because the soil contains an anti-seepage clay layer, it is difficult for sewage to infiltrate. There are large pieces of filter water, and the sewage seeps into a layer of water-bearing sand layer through the large piece of material between the well wall and the well pipe, and penetrates into the well through the water filter flower tube of this layer, and the sewage flows downward along the inner wall of the well pipe In the next layer of water filter flower tube and water-bearing sand layer, vertical three-dimensional pollution is also formed, and the pollution is even greater

[0005] As the depth of well drilling deepens, if it cannot be well treated, more groundwater will be polluted. Since the groundwater pollution can hardly be recovered, it will cause serious damage to the future ecology.

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