Device and method for degrading alkaline organic waste water by iron-carbon micro-electrolysis

Abstract

The invention discloses a device and a method for degrading alkaline organic waste water by iron-carbon micro-electrolysis, and belongs to the field of sewage treatment. The degrading alkaline organic waste water by iron-carbon micro-electrolysis is characterized by consisting of a CO2 pressure air dissolver, an iron-carbon micro-electrolysis device, a tubular reactor and an efficient inclined tube settling tank, wherein organic waste water enters an iron-carbon micro-electrolysis reactor after passing through a screen in the CO2 pressure air dissolver to react with a filler and CO2 micro-nano air bubbles released by a micro-nano aerator, is guided out of a tubular reactor after reacting in a three-dimensional multidimensional micro-electrolysis reaction tank formed by an iron-carbon filler, and finally enters the settling tank after alkaline liquor and a flocculating agent are added. The device can be used for improving the biodegradability of the degraded alkaline organic waste water. Sewage technically adopting pressure dissolving and CO2 gas dispersion enters an iron-carbon micro-electrolysis reactor, so that the filler in the reactor is activated in real time, the generation of hydroxyl radicals (.OH) is strengthened, and the generation amount of the hydroxyl radicals (.OH) is 2-3 times time of that of common iron-carbon micro-electrolysis. According to the process, hardening and blocking phenomena of the iron-carbon filler are avoided, the treatment efficiency is improved, the treatment time is reduced, and the service life of the filler can be prolonged, so that the water quality of effluent water in operation can be stable and reliable.

Description

technical field [0001] The invention relates to a process for improving the biodegradability of alkaline sewage and performing advanced treatment on it, and more particularly relates to a process based on CO 2 A device for the degradation of alkaline organic wastewater by iron-carbon micro-electrolysis. The invention also relates to a method for treating refractory alkaline organic wastewater by using the above-mentioned device. Background technique [0002] People will produce a large amount of organic wastewater in the process of production and life. After the organic wastewater without effective treatment is discharged into the natural water body, it will make the receiving water body anoxic or even anaerobic, resulting in most of the original aquatic organisms in the receiving water body Organisms die, causing foul smell in the water body, turning into gray water and black water, deteriorating water quality and environment. The intervention of organic wastewater makes ...

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Problems solved by technology

This not only increases the operating cost, but also increases the inorganic salt in the wastewater

However, the operation of directly neutralizing strong alkaline wastewater with acid has certain risks.

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