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Microelectrolysis/UASB/Biological Contact Oxidation for Treatment of Wastewater from Disperse Dye Production

Mao Xiao-wei

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Abstract

Based on the characteristics of a dye wastewater,the combined process of microelectrolysis,UASB and biological contact oxidation is used,and the treatment capacity is 120 m3/d.The project operation results show that when the influent COD is 5 000 to 5 500 mg/L,the effluent COD is less than 500 mg/L after treatment,and the average removal rate is more than 90%.The effluent quality meets the third level criteria specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).

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What this paper is about

Based on the characteristics of a dye wastewater,the combined process of microelectrolysis,UASB and biological contact oxidation is used,and the treatment capacity is 120 m3/d.The project operation results show that when the influent COD is 5 000 to 5 500 mg/L,the effluent COD is less than 500 mg/L after treatment,and the average removal rate is more than 90%.The effluent quality meets the third level criteria specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).

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Available abstract

Based on the characteristics of a dye wastewater,the combined process of microelectrolysis,UASB and biological contact oxidation is used,and the treatment capacity is 120 m3/d.The project operation results show that when the influent COD is 5 000 to 5 500 mg/L,the effluent COD is less than 500 mg/L after treatment,and the average removal rate is more than 90%.The effluent quality meets the third level criteria specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).

Key concepts: Effluent, Wastewater, Oxidation process, Pulp and paper industry, Waste management, Sewage treatment, Chemistry, Production rate

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