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Optimization of activated sludge wastewater treatment system

Duan Qiu

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Abstract

A model based on activated sludge wastewater treatment systems was presented.The objective was to optimize energy consumption and improve effluent quality.Activated Sludge Model No.1(ASM1) was used for bioreactor modeling.A case study was made for a complex activated sludge process including nitrification,denitrification and aeration.Optimization waas made for three reactor layouts.the results showed that the quality of effluent was improved,and TSS,COD,BOD and TKN of the effluent all satisfied the environment regulation.At the same time,lower operational costs(mainly pumping energy and aeration energy) were achieved(saving by about 1/4).

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What this paper is about

A model based on activated sludge wastewater treatment systems was presented.The objective was to optimize energy consumption and improve effluent quality.Activated Sludge Model No.1(ASM1) was used for bioreactor modeling.A case study was made for a complex activated sludge process including nitrification,denitrification and aeration.Optimization waas made for three reactor layouts.the results showed that the quality of effluent was improved,and TSS,COD,BOD and TKN of the effluent all satisfied the environment regulation.At the same time,lower operational costs(mainly pumping energy and aeration energy) were achieved(saving by about 1/4).

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Available abstract

A model based on activated sludge wastewater treatment systems was presented.The objective was to optimize energy consumption and improve effluent quality.Activated Sludge Model No.1(ASM1) was used for bioreactor modeling.A case study was made for a complex activated sludge process including nitrification,denitrification and aeration.Optimization waas made for three reactor layouts.the results showed that the quality of effluent was improved,and TSS,COD,BOD and TKN of the effluent all satisfied the environment regulation.At the same time,lower operational costs(mainly pumping energy and aeration energy) were achieved(saving by about 1/4).

Key concepts: Activated sludge, Effluent, Aeration, Activated sludge model, Wastewater, Nitrification, Sewage treatment, Environmental science

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