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The  Study to Forming Process of Dynamic Membrane and Treatment Effect for Sewage
Authors: Xiao Xiaoqiang   You Zhaoyang*   Zhang Dang   Liu Zhiyin
Units: The Key Laboratory of Environmental College, Nanjing University of Technology, Nanjing, 210009
KeyWords: Dynamic Membrane;Non-woven Fabric;Membrane Biological;Forming Process; Sewage Treatment
ClassificationCode:X703
year,volume(issue):pagination: 2013,33(5):68-72

Abstract:
The dynamic membrane bioreactor constructed by non-woven fabric was used for munisipal sewage traetment to study  its forming process and treatment effect for sewage.The results showed that the quality of effluent could be stable one hour later  and the membrane flux could be stable three hour later after DMBR startup ,when the aeration fluxes was 600 ml/min,the hydraulic head was 5cm and the MLSS was 4500mg/L.So it was considered the stable dynamic membrane was formed 3 hours later after the reactor startup. The contents of COD、TP、NN4+-N were 14.46 mg/L~37.67 mg/L、2.33~4.67 mg/L and 0.79mg/L~3.31mg/L after the dynamic membrane formation ,and the removal rates of COD、TP、NN4+-N were 90.84%、88.40% and 35.10%,which 78.45%、80.17%、21.74% were removaled by activated sludge 12.39 %、13.36%、8.23% were removaled by dynamic membrane.It was thus clear that the non¬-woven fabric dynamic membrane had an enhanced  effect to sewage treatment.

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AuthorIntro:
肖晓强(1987—),男,福建三明人,硕士,主要研究方向污水处理。E-mail: xingchenqiang@163.com

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