Composite electrochemical reaction device

Abstract

The invention discloses a composite electrochemical reaction device. The device comprises a shell, a power supply, an anode assembly and a cathode assembly, wherein the anode assembly and the cathodeassembly are arranged in the shell; the anode assembly and the cathode assembly are respectively connected with a positive electrode and a negative electrode of the power supply arranged outside the shell through wires; wherein each of the anode assembly and the cathode assembly consists of one or more composite electrochemical electrodes, and each composite electrode comprises an electrode substrate and a metal wire mesh modification layer which is matched with the surface size of the electrode substrate, superposed on the surface of the electrode substrate and fixedly connected with the electrode substrate into a whole. The composite electrode in the reaction device has good conductivity and membrane filtration performance, pollutants in water can be subjected to deep electrochemical treatment and membrane filtration, the service life of the composite electrode is long, oil, acidic substances and refractory organic pollutants in wastewater can be efficiently removed, and the device has important practical value.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a composite (outer lining-lining) electrochemical reactor device for treating waste water. Background technique [0002] In recent years, electrochemistry, as a green and environmentally friendly treatment technology with high energy efficiency and low secondary pollution, has been widely used in water treatment, waste gas treatment, and environmental monitoring and testing. In the field of water treatment, commonly used electrodes include metal electrodes, carbon material electrodes, gas electrodes, refractory salt electrodes, membrane electrodes, and chemically modified electrodes and multiple electrodes developed on the basis of the above electrodes. Among them, the chemically modified electrode attaches certain active groups, catalytic substances, etc. to the surface of the electrode, so that it has stronger processing efficiency. Existing chemically modif...

AI Technical Summary

Problems solved by technology

According to the latest scientific research results, the membrane filtration process can effectively reduce membrane pollution under the action of an electric field. Therefore, in order to give full play to the membrane filtration performance of ceramic membranes and make them conductive, some scholars mostly use conductive titanium and iron. The method of firing metal powder as the raw material of the ceramic membrane, or the method of coating the surface of the ceramic membrane with a conductive modification material, so that the filter membrane can conduct electricity, but the appeal method is complicated due to the processing cost and the sintering process of the ceramic membrane. The pore size of the middle membrane is difficult to control, and the products produced either have poor conductivity or poor filtration performance, and the actual application effect is not ideal

Images