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2013•China Water & WastewaterRequires access

Treatment of Pharmaceutical Wastewater by Catalyzed Internal Electrolysis/Hydrolysis Acidification/Bio-contact Oxidation/Coagulation Process

Bo Yu

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Abstract

The catalyzed internal electrolysis/hydrolysis acidification/bio-contact oxidation/coagulation process was used for the treatment of pharmaceutical wastewater.The COD removal rate was 61% while the B/C improved from 0.1 to above 0.3 after the catalyzed internal electrolysis.The system had high resistance to influent loads,and the removal rates of COD,NH3-N and TP were 89%,95% and nearly 100%,respectively.The effluent quality met the first class criteria specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).The operation cost of the combined process was only 1.61 yuan/m3.

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What this paper is about

The catalyzed internal electrolysis/hydrolysis acidification/bio-contact oxidation/coagulation process was used for the treatment of pharmaceutical wastewater.The COD removal rate was 61% while the B/C improved from 0.1 to above 0.3 after the catalyzed internal electrolysis.The system had high resistance to influent loads,and the removal rates of COD,NH3-N and TP were 89%,95% and nearly 100%,respectively.The effluent quality met the first class criteria specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).The operation cost of the combined process was only 1.61 yuan/m3.

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Available abstract

The catalyzed internal electrolysis/hydrolysis acidification/bio-contact oxidation/coagulation process was used for the treatment of pharmaceutical wastewater.The COD removal rate was 61% while the B/C improved from 0.1 to above 0.3 after the catalyzed internal electrolysis.The system had high resistance to influent loads,and the removal rates of COD,NH3-N and TP were 89%,95% and nearly 100%,respectively.The effluent quality met the first class criteria specified in the Integrated Wastewater Discharge Standard(GB 8978-1996).The operation cost of the combined process was only 1.61 yuan/m3.

Key concepts: Electrolysis, Effluent, Wastewater, Hydrolysis, Chemistry, Coagulation, Oxidation process, Pulp and paper industry

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