Ionic exchange membrane electrolytic cell device for treating chemical production wastewater

Abstract

The invention provides an ionic exchange membrane electrolytic cell device for treating chemical production wastewater. The ionic exchange membrane electrolytic cell device comprises a wastewater chamber, a first fresh water chamber and a second fresh water chamber, wherein the first fresh water chamber and the second fresh water chamber are positioned at two sides of the wastewater chamber; the wastewater chamber is separated from the first fresh water chamber and the second fresh water chamber by an anionic membrane and a cationic membrane; an anode plate of the electrolytic cell is positioned in the fresh water chamber close to the side of the anionic membrane; a cathode plate of the electrolytic cell is positioned in the fresh water chamber close to the side of the cationic membrane. The ionic exchange membrane electrolytic cell device has the positive benefits that the saliferous chemical wastewater is treated according to a membrane electrolysis technology, the electrolytic cell is of a three-chamber structure and the anionic membrane and the cationic membrane are mounted in the same electrolytic cell, so that the equipment treatment time is greatly shortened relative to the present two-chamber structure and the wastewater treatment efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an ion-exchange membrane electrolyzer device for treating chemical production wastewater. Background technique [0002] Chemical production wastewater treatment has the characteristics of high chroma, high toxicity, and complex pollutant components. Its COD value is usually in the range of tens of thousands of mg / L, and its BOD / COD value is low, usually not higher than 0.1. In addition, its ammonia nitrogen content And the salt content is high, which makes this kind of wastewater difficult to treat. In the existing technology, it is difficult for enterprises to meet the emission standards required by the country after treatment by traditional methods (Fenton, micro-electrolysis, flocculation precipitation and biochemical methods), and often have to add ozone oxidation, permeable membrane, and activated carbon adsorption. method and other subsequent combination methods, ...

AI Technical Summary

Problems solved by technology

The traditional use of membrane electrolysis technology to treat salt-containing chemical wastewater has a two-chamber structure. The anion and yang membranes are separated on two devices, and the sewage passes through the anion and yang membrane equipment respectively. This increases the time for sewage treatment, and the treatment efficiency is low, which urgently needs to be improved.

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