Method and device for treating organic sewage through nanometer aeration micro-electrolysis combined with molecular sieve

Abstract

A method for treating organic sewage through nanometer aeration micro-electrolysis combined with a molecular sieve includes steps of (A) performing closed anaerobic acidizing pretreatment on sewage to be treated; (B) performing micro-electrolysis reaction on the water after the acidizing pretreatment; (C) adjusting the water after the micro-electrolysis reaction into neutral water, and discharging the water after biofiltration; and (D) leading partial nanometer-aerated water discharged after the biofiltration and the water after the acidizing pretreatment to perform micro-electrolysis reaction. The method and a device for treating organic sewage through nanometer aeration micro-electrolysis combined with the molecular sieve have the advantages of being wide in application range, fast in reaction speed, simple in technological process, long in service life, small in investment cost, convenient to operate and maintain, low in operation cost, stable in treatment effect and the like.

Description

technical field [0001] The invention relates to a technical method for sewage treatment, and more specifically relates to a method for treating organic sewage with nano-aeration and micro-electrolysis combined with molecular sieves. [0002] The invention also relates to a device for implementing the above method. Background technique [0003] High-concentration organic sewage contains a large amount of macromolecular organic matter, which is characterized by poor biodegradability and low C / N ratio. If it is discharged directly, the degree of pollution to the water body will be large, and the treatment will be difficult, causing serious pollution to the environment. How to improve treatment efficiency and reduce investment is very critical for high-concentration, refractory and high-concentration organic sewage treatment projects. It is difficult for the existing treatment technology to treat high-concentration organic sewage effluent quality to meet the national standard....

AI Technical Summary

Problems solved by technology

[0004] In the known sewage treatment, it is difficult for the commonly used micro-electrolysis reactor to maintain a high degree of activity for a long time during long-term operation, and activators need to be frequently added for "activation". Not only the treatment efficiency is low, the treatment time is long, and because the filler is prone to compaction , blockage, affecting the continuous progress of micro-electrolysis, resulting in the problems of "scarring", "passivation" and "death bed"

At the same time, after the reactor has been running for a certain period of time, the pH value will increase, which will also affect the treatment efficiency of the reactor.

[0005] However, the existing biological filter has low treatment efficiency, poor oxygen mass transfer capacity and dissolved air efficiency, short backwash cycle, and it is difficult to resist high-concentration impact load

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