Industrial wastewater treatment process convenient for pollutant degradation

Abstract

The invention discloses an industrial wastewater treatment process convenient for pollutant degradation. The industrial wastewater treatment process is characterized by comprising the following steps: S1, coarsely filtering wastewater, and removing large-diameter particles in the industrial wastewater to obtain a coarse filtrate A; S2, adding an acid-base balancing agent into the coarse filtrate A to obtain a coarse filtrate B with a pH value in a range of 7-9; S3, performing electric flocculation treatment on the coarse filtrate B to obtain a pollutant C and wastewater D; S4, performing electro-catalysis on a mixed solution of the pollutant C and the wastewater D based on a special polar plate to obtain electrolytic wastewater E; and S5, conducting solid-liquid separation on the electrolytic wastewater E through an ultrafiltration membrane so as to reach a discharge standard. According to the invention, pollutants can be degraded to the maximum extent after full-automatic treatment of wastewater, the influence of fluctuation of raw water pollution components on a treated water sample is small, treatment cost is reduced, and meanwhile, water consumed by enterprise production is saved.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to an industrial waste water treatment process which facilitates the degradation of pollutants. Background technique [0002] Industrial wastewater includes production wastewater and production sewage, which refers to wastewater and waste liquid generated in the process of industrial production, which contains industrial production materials, intermediate products, by-products and pollutants generated in the production process that are lost with water. of water. [0003] In the wastewater industry, industrial wastewater is the most harmful to the environment. Among them, the wastewater containing toxic and harmful substances and heavy metals produced by the electroplating industry in the chemical industry, the wastewater in the processing industry, and the spraying industry are the most harmful. Traditional membrane filtration, biochemical and other methods exist. Due to the problems of...

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Problems solved by technology

[0003] In the wastewater industry, industrial wastewater is the most harmful to the environment. Among them, the wastewater containing toxic and harmful substances and heavy metals produced by the electroplating industry in the chemical industry, the wastewater in the processing industry, and the spraying industry are the most harmful. Traditional membrane filtration, biochemical and other methods exist. Due to the problems of large initial investment, high treatment costs, and high requirements for the stability of raw water, the traditional treatment methods for industrial wastewater are mainly physical and chemical methods and biochemical methods. For treatment, anaerobic / itchy technology is the main treatment. This method requires a huge investment in the early stage, and the fluctuation of the composition of the wastewater source in the later stage should not be too large, otherwise the effect of the wastewater after treatment will drop significantly. The physical and chemical methods are mainly neutralization, precipitation, filtration and centrifugation. Treatment process, the advantage of this method is that the initial investment is small, but the disadvantages are high treatment cost and high maintenance cost

[0004] At present, there is a lack of a low-cost sewage treatment method that can achieve the maximum degradation of pollutants after fully automatic treatment of wastewater, and at the same time, the volatility of raw water pollution components has little impact on the treated water samples

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