Membrane Science and Technology

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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.

Funds：

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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