Micro-electrolysis coupled Fenton wastewater treatment device

Abstract

The invention relates to a micro-electrolysis coupled Fenton wastewater treatment device, which comprises: a micro-electrolysis reaction bin, an internal cavity of which is divided into a first mixing zone for mixing wastewater and a neutralization solution, a micro-electrolysis filler zone for performing micro-electrolysis on wastewater and a first clear water zone for collecting treated wastewater from bottom to top; the first clear water area is communicated with the first mixing area through a pipeline, and a first circulating pump for driving water flow to flow from top to bottom is mounted on the pipeline; an inner cavity of the Fenton reaction bin is divided into a second mixing area for mixing wastewater and reaction liquid and a second clear water area for collecting treated wastewater from bottom to top; a water inlet of the second mixing area is communicated with an overflow port of the first clear water area through a pipeline. According to the micro-electrolysis coupled Fenton wastewater treatment device, ferrous ions can be generated by fully utilizing micro-electrolysis reaction through methods of adjusting the retention time of wastewater in the micro-electrolysis reaction bin, the pH value of inlet water in the micro-electrolysis reaction bin and the like, the addition amount of chemicals is reduced, and the wastewater treatment effect is better.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a waste water treatment device coupled with micro-electrolysis and Fenton. Background technique [0002] The water environment is suffering unprecedented serious pollution, which poses a great threat to the ecological environment and human health. There are more and more types of wastewater, and the composition is more complex. In the production process of chemical industry, printing and dyeing, dyestuff, tanning, pharmaceutical, papermaking and other industries, as well as the pollution sources of high-concentration refractory wastewater produced after biochemical treatment that is not up to standard are increasing, which has attracted great attention from all walks of life. The COD of this type of wastewater is above 2000mg / L, and the biodegradability is low, and the B / C value is less than 0.3, making it difficult to biodegrade. Compared with general wastewater, high-conc...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to achieve the wastewater treatment index by using a single technical means to treat high-concentration refractory wastewater, and simply combining them cannot achieve the best wastewater treatment effect.

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