Decoloration treatment method of colored wastewater

Abstract

The invention provides a method for decolorizing colored wastewater. The method can use simple equipment to efficiently decolorize the colored wastewater produced in various production fields or daily life into colorless transparent water, and can reduce BOD, COD, total nitrogen, total phosphorus and the like with low cost. The method for decolorizing colored wastewater comprises the following: a step of regulating acidity, which is to regulate the colored wastewater to be acidic; a step of destroying and separating colored components, which is to destroy and separate the colored components in the acidic wastewater subjected to the acidity regulating step; and a step of adsorbing and separating, which is to use a filter layer fixed with microorganisms to adsorb and separate the colored components destroyed and separated after the step of destroying and separating the colored components.

Description

Technical field [0001] The present invention relates to a decolorization treatment method for coloring wastewater, which can decolorize dye and pigment wastewater from the textile industry, etc., wastewater mixed with glaze, etc., from the ceramic industry, electroplating wastewater from the metal processing industry, etc., and wastewater related to animal husbandry. Agriculture and forestry wastewater, food industry wastewater, chemical petroleum industry wastewater, electronic and electrical industry wastewater, iron-making machinery industry wastewater, catering industry, etc. various production sites or coloring wastewater generated in daily life, etc., are decolorized and become no Transparent water, and can also reduce BOD, COD, total nitrogen, total phosphorus, etc. Background technique [0002] At present, the decolorization methods of high-concentration and low-concentration colored wastewater produced in various production activities vary according to the amount of prod...

AI Technical Summary

Problems solved by technology

These treatments include electrolytic decomposition and removal treatment, flocculation separation and removal treatment using anion and cationic flocculants, activated sludge treatment using microbial decomposition, etc., but the operating costs of these treatments account for an increasing proportion of production year by year, so The above-mentioned operating costs include the cost of equipment used for processing, the processing cost of the accompanying by-products, etc.

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