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Application of Hydrolytic Acidification-Contact Oxidation-Coagulation Process in the Treatment for Dyeing Wastewater

Chen Chao-chan

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Abstract

The dyeing wastewater is a kind of industrial wastewater which is hard to be treated,with high COD,high chroma and low biochemistry.Hydrolytic acidification-contact oxidation-coagulation process is adopted to treat dyeing wastewater and the removal rates of COD,BOD,SS and chroma can reach 86%,92.5%,88% and 90% respectively.The effluent can reach the first grade discharge standard of Water Pollutants for Dyeing and Finishing of Textile Industry(GB4287-92).It has advantages of low engineering investment,stable operation and high efficiency,etc.

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What this paper is about

The dyeing wastewater is a kind of industrial wastewater which is hard to be treated,with high COD,high chroma and low biochemistry.Hydrolytic acidification-contact oxidation-coagulation process is adopted to treat dyeing wastewater and the removal rates of COD,BOD,SS and chroma can reach 86%,92.5%,88% and 90% respectively.The effluent can reach the first grade discharge standard of Water Pollutants for Dyeing and Finishing of Textile Industry(GB4287-92).It has advantages of low engineering investment,stable operation and high efficiency,etc.

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Available abstract

The dyeing wastewater is a kind of industrial wastewater which is hard to be treated,with high COD,high chroma and low biochemistry.Hydrolytic acidification-contact oxidation-coagulation process is adopted to treat dyeing wastewater and the removal rates of COD,BOD,SS and chroma can reach 86%,92.5%,88% and 90% respectively.The effluent can reach the first grade discharge standard of Water Pollutants for Dyeing and Finishing of Textile Industry(GB4287-92).It has advantages of low engineering investment,stable operation and high efficiency,etc.

Key concepts: Dyeing, Wastewater, Effluent, Coagulation, Pulp and paper industry, Hydrolysis, Water pollutants, Pollutant

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