Dislocated electrode bio-electro-Fenton circulating well system

Abstract

The invention relates to a staggered electrode bioelectricity-Fenton circulating well system which at least comprises a circulating well body, a water pumping and injecting switching assembly and an in-well bioelectricity-Fenton assembly, and the water pumping and injecting system is used for achieving water pumping and injecting between different screen sections of a circulating well. The bio-electro-Fenton assembly arranged in the first screen section of the circulating well at least comprises a plurality of electrodes arranged in a staggered mode, a plurality of cathodes and a plurality of anodes of the electrodes form spatial dislocation according to different distribution areas, and / or the cathodes of the electrodes are arranged outside the cavity coated with the proton exchange membrane, and the cathodes of the electrodes are arranged outside the cavity coated with the proton exchange membrane. The anode is arranged in the cavity coated with the proton exchange membrane, and the cathode and the anode are arranged in a staggered manner in the axial direction of the electrode. The cathode and the anode are arranged in a staggered manner in space, so that the influence of oxygen on the anaerobic environment of the anode chamber in the electrode is greatly reduced while the cathode is ensured to take oxygen as an electron acceptor, and the constructed bioelectro-Fenton system can accelerate the degradation of organic pollutants in a circulating well.

Description

technical field [0001] The invention relates to the technical field of in-situ restoration of groundwater pollution, in particular to a dislocation electrode bioelectric Fenton circulation well system. Background technique [0002] The groundwater circulation well technology is an in-situ repair technology. Through the special design of the main well pipe and the driving effect of aeration / pumping and injection, the groundwater in the aquifer is driven to flow, so that the groundwater forms a vertical well within a certain space range of the aquifer around the circulation well. Three-dimensional water circulation is widely used in the remediation of organic matter-contaminated groundwater. Circulating well technology has the advantages of simple principle, low cost of pollution remediation, easy operation and maintenance of equipment, and little disturbance to aquifers. At the same time, it can also couple multiple pollution remediation such as multiphase extraction, in-situ...

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Problems solved by technology

However, since the anode and the cathode are all set in the sewage in this patent, the O near the cathode 2 It has a great influence on the reactivity of microorganisms loaded on the surface of the anode

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