System and method for restoring triclene polluted groundwater

Abstract

The invention relates to a repair system and a repair method for underground water polluted by trichloroethylene. The repair system for the underground water polluted by the trichloroethylene consists of an anaerobe reaction wall, an oxygen release reaction wall and an aerobe reaction wall, and is built and assembled according to the order of the anaerobe reaction wall, the oxygen release reaction wall and the aerobe reaction wall. The invention establishes the multifunctional biological permeable reaction wall system for in situ repair of the underground water polluted by the trichloroethylene, wherein an oxygen release agent provides sufficient oxygen for indigenous microorganisms, and three substances, namely residual activated sludge, immobilized trichloroethylene aerobic degrading bacteria and biological enzyme preparation related to trichloroethylene metabolism, are added respectively, so that the microorganism action is strengthened and the trichloroethylene biodegradation efficiency is improved. The invention provides an ideal and high-efficiency biological repair system which has wide application prospect for the underground water polluted by the trichloroethylene through stepped combination of the anaerobe action, the oxygen release action and the aerobe action.

Description

technical field

[0001] The invention relates to the technical field of remediation of polluted groundwater, in particular to a remediation system and method for trichlorethylene (TCE) polluted groundwater. Background technique

[0002] Groundwater pollution has become an environmental problem that cannot be ignored. At present, the types of pollutants in my country's shallow groundwater are complex and the concentration exceeds the standard, which has exceeded the natural attenuation capacity of the soil and groundwater system. The use of a single remediation method or a remediation technology often cannot quickly and efficiently control the diffusion and migration of multiple pollutions in the groundwater environment, which often leads to aggravated groundwater environmental pollution and increased difficulty in governance, which not only threatens the safety of drinking water for surrounding residents and increases the water consumption of enterprises. cost; it may even l...

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