An in-situ fracturing aeration assisted electrochemical array well repair device and method

Abstract

The invention belongs to the field of in-situ remediation of contaminated soil, and particularly relates to a device and a method for the remediation of an in-situ fracturing aeration auxiliary electrochemical array well. According to the device, an automatic control system is respectively connected with an inflating pump, an anode buffer solution adding device and a cathode buffer solution adding device through lines, wherein the line connected the automatic control system with the cathode buffer solution adding device is respectively connected with a high-pressure hydraulic fracturing pump, a suction pump exhaust gas treatment device and a pollution buffer solution treatment device; the anode buffer solution adding device and the suction pump exhaust gas treatment device are respectively connected with an anode well through the line; the inflating pump is connected with an aerator pipe through the line; the high-pressure hydraulic fracturing pump is connected with a hydraulic vibrating and fracturing well by the line; and the suction pump exhaust gas treatment device, the pollution buffer solution treatment device and the cathode buffer solution adding device are respectively connected with a cathode well through the lines. According to the device and the method, the remediation effect of electrochemical remediation and the remediation efficiency of anode pollution gas are improved, and pollutants are eliminated completely. Therefore, the relative low cost and the high treatment efficiency are achieved.

Description

technical field [0001] The invention belongs to the field of in-situ restoration of polluted soil, in particular to an in-situ fracturing aeration-assisted electrochemical array well restoration device and method. Background technique [0002] The main sources of soil heavy metal pollution are the deposition of heavy metals in the atmosphere, the use of pesticides, fertilizers and plastic films, sludge fertilization, sewage irrigation, accumulation of waste containing heavy metals, and acid wastewater pollution from metal mines. At present, the way to repair heavy metal pollution in soil is to change the form of heavy metals in the soil from an active state to a stable state, so as to weaken the toxicity of heavy metals to plants and organisms, such as solidification method, stabilization method; or from soil Remove heavy metals in the medium, so that the remaining concentration is close to or reaches the background value, such as chemical leaching method, thermal analysis m...

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Problems solved by technology

[0006] Generally speaking, at present, most of the soil heavy metal pollution remediation technologies and equipment in my country are ex-situ remediation technologies and equipment, and they are still in the stage of research and development and experimental prototypes, and the industrial application of remediation equipment is seldom.

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