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Device and method for periodic in-situ pumping based integrated repairing of groundwater pollution

A technology for groundwater pollution and in-situ remediation, applied in chemical instruments and methods, restoration of contaminated soil, treatment of contaminated groundwater/leachate, etc. and other problems, to achieve the effect of reducing pollutant concentration, high reliability, and reducing pollution control costs

Active Publication Date: 2013-09-18
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the treatment process, most of the polluted areas need to pump the polluted groundwater to the surface to carry out thorough treatment and restoration. However, excessive exploitation of groundwater will lead to a drop in the groundwater table, groundwater funnels in the confined aquifer, and land subsidence.

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  • Device and method for periodic in-situ pumping based integrated repairing of groundwater pollution

Examples

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Embodiment 1

[0022] A device for remediating groundwater pollution based on periodic in-situ pumping and irrigation, which consists of three parts: a suction system, an in-situ repair system, and a recharge system; Composed of corresponding suction pipelines, the suction system is connected to the in-situ repair system, the in-situ repair system is connected to the recharge system, and the recharge system is composed of one or more recharge wells and corresponding recharge pipelines;

[0023] In the suction system, the suction well (1) is set underground, the casing (102) is set in the concrete slurry layer (103), and the bottom of the casing (102) is set with a reducer (107); the casing ( 102) A gravel filter layer (108) is set below, and the gravel filter layer (108) is set in the target aquifer, and its top is respectively connected with the reducer (107) and the concrete slurry layer (103); the gravel filter layer ( A screen (109) is set between 108) and the target groundwater, and a p...

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Abstract

The invention belongs to the technical field of in-situ preparing of polluted underground water, and particularly relates to a device and method for periodic in-situ pumping based integrated repairing of groundwater pollution. The device comprises a polluted underground water pumping system, an in-situ repairing system and a recharge system, wherein the pumping system is composed of a pumping well and a pumping pipeline; the pumping system is connected with the in-situ repairing system; the in-situ repairing system is connected with the recharge system; and the recharge system comprises a recharge pipeline and a recharge well. The pumping well and the recharge well are subjected to a pumping test and a recharge test before the periodic in-situ pumping based integrated repairing of the underground water pollution is carried out. By adopting the method, the processed underground water is recharged to the original polluted water layer to dilute the original polluted water layer, so that the concentration of pollutants in a target aquifer is reduced, convenience is provided for subsequent treatment, and the pollution manage cost is reduced. The processed polluted underground water is timely recharged; and the poor hydrogeololgy and engineering geology can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of in-situ restoration of polluted groundwater, in particular to a device and method for integrated restoration of groundwater pollution based on periodic in-situ pumping and irrigation. Background technique [0002] Groundwater is an important part of water resources. With the acceleration of urbanization, the problem of groundwater pollution has become increasingly prominent. At present, 90% of the urban groundwater in my country is polluted, and 60% of them are seriously polluted, which has seriously threatened the safety of groundwater. As an important source of drinking water for human beings and irrigation water for farmland, the safety of groundwater environment is very important, which affects human health and crop production quality. Therefore, it is urgent to control the polluted groundwater. In the treatment process, most of the polluted areas need to pump the polluted groundwater to the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F103/06
CPCB09C1/002E21B43/40
Inventor 何理申婧张嘉琪李振通
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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