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2004•Journal of Zhejiang University Agriculture and Life SciencesRequires access

Study on city composite wastewater treatment by SBR process

Dongsheng Shen

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Abstract

In this paper, the feasibility of treating composite wastewater by Sequencing Batch Reactor (SBR) was studied. The results showed that aeration time influenced the removal efficiency and sludge activity and 10-hour was the optimum duration of aeration for wastewater treatment. When COD in the influent amounted to 430-660 mg/L and NH_4~+-N was 16.9-21.5 mg/L, COD removal rate reached 90% and COD and NH_4~+-N in the effluent was, respectively, below 80 mg/L and 14 mg/L.

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What this paper is about

In this paper, the feasibility of treating composite wastewater by Sequencing Batch Reactor (SBR) was studied. The results showed that aeration time influenced the removal efficiency and sludge activity and 10-hour was the optimum duration of aeration for wastewater treatment. When COD in the influent amounted to 430-660 mg/L and NH_4~+-N was 16.9-21.5 mg/L, COD removal rate reached 90% and COD and NH_4~+-N in the effluent was, respectively, below 80 mg/L and 14 mg/L.

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Available abstract

In this paper, the feasibility of treating composite wastewater by Sequencing Batch Reactor (SBR) was studied. The results showed that aeration time influenced the removal efficiency and sludge activity and 10-hour was the optimum duration of aeration for wastewater treatment. When COD in the influent amounted to 430-660 mg/L and NH_4~+-N was 16.9-21.5 mg/L, COD removal rate reached 90% and COD and NH_4~+-N in the effluent was, respectively, below 80 mg/L and 14 mg/L.

Key concepts: Effluent, Aeration, Sequencing batch reactor, Wastewater, Pulp and paper industry, Composite number, Sewage treatment, Chemistry

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