Permeable reactive barrier and groundwater pollution in-situ bioremediation method

Abstract

A permeable reactive barrier is provided, wherein a remediation well is disposed in a groundwater reactive main well and includes a water suction well and an aeration well; an aeration pipe is disposed in the aeration well, connected to an air compressor on the ground, and mounted at the bottom center of the remediation well; an automatic sample collecting device is mounted in the aeration well; the space between the remediation well and the groundwater reactive main well is filled with a filter material; a permeable reaction treatment unit includes a plurality of reaction unit assemblies having an interlayer structure; positioning connecting grooves are provided between adjacent reaction units; the reaction units connected are disposed in the remediation well; interlayer space among the reaction units is loaded with a mixture biological filler material; a water quality analysis probe is mounted in the permeable reaction treatment unit; two-wing seepage-proof walls are disposed at twowing sides of the remediation well, and have longitudinal operation depth allowing the seepage-proof walls to penetrate the first phreatic aquifer; a discharged water monitoring tank is under the ground and is provided with a water quality and water level automatic monitoring system inside; a PLC control system is adopted by an automatic control system.

Description

technical field [0001] The invention belongs to the field of groundwater restoration, and more specifically relates to an intermittent aeration funnel-type permeable reaction wall (PRB). [0002] The present invention also relates to a method for in-situ bioremediation of groundwater pollution in landfill sites by using the above-mentioned PRB. Background technique [0003] At present, the main disposal methods of industrial solid waste basically adopt landfill, stockpiling, tailings pond and so on. Landfill refers to the solid pollutant treatment method of burying solid waste underground or stacking it on the ground. According to whether the anti-seepage measures of the landfill are sound, it can be divided into simple or sanitary landfill. The contradiction between long-term accumulated and stockpiled landfill land and valuable land resources for urban development and ecological space has become increasingly prominent. As the landfill time increases, the risk of landfill...

AI Technical Summary

Problems solved by technology

As the landfill time increases, the risk of landfill anti-seepage layer damage and leachate leakage increases accordingly

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