Shallow groundwater extraction and repair treatment system and method

Abstract

The invention provides a shallow groundwater extraction and repair treatment system. The shallow groundwater extraction and repair treatment system comprises a plurality of drainage ditches, and further comprises a water suction pump set and a water injection pump set, wherein the drainage ditches communicate with one another; the bottom of each drainage ditch extends to a water table; water suction tubes of the water suction pump set extend to the downstream ends of the drainage ditches; and water injection tubes of the water injection pump set extend to the upstream ends of the drainage ditches. The invention further provides a shallow groundwater extraction and repair treatment method. The shallow groundwater extraction and repair treatment method comprises the following steps: S1, design of the drainage ditches; S2, measurement and paying-off of the drainage ditches; S3, dredging and digging of the ditches; S4, connection of the water suction tubes and the water injection tubes; S5, suction and injection construction of groundwater; and S6, sampling and monitoring at regular times. The provided repair treatment system is simple and practicable, and is convenient to operate, therepair efficiency and the repair effect are greatly improved, under the condition that an extraction well is not constructed, the repair time is greatly shortened, and meanwhile, new environment influences to the repaired groundwater are not caused.

Description

technical field [0001] The invention relates to the field of environmental restoration engineering of polluted groundwater, in particular to a shallow groundwater pumping restoration treatment system and method. Background technique [0002] With the implementation of the policy of "retreating from two to three" in major cities in China, industrial production enterprises in major cities have begun to relocate to other places, and the problem of groundwater pollution in the relocated sites has become increasingly prominent. Among them, the main production of most industrial production enterprises During the production and use of the equipment throughout the year, due to improper production and operation maintenance or inadequate anti-seepage measures, petroleum hydrocarbon pollution in shallow groundwater has been caused. Therefore, it is necessary to adopt efficient and rapid restoration technology to meet the progress requirements of land redevelopment and utilization. [0...

AI Technical Summary

Problems solved by technology

[0004] 1. The construction period of the extraction well is relatively long

[0005] 2. The operation of constructing the extraction well and setting up the extraction system is relatively complicated

[0006] 3. The traditional pumping wells return water slowly in the later stage of pumping out, which prolongs the repair period of pumping out

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