%0 Journal Article
%T Permeate Flux and Membrane Fouling Controlling of a Membrane Bioreactor with Gravity Flow to Treat Domestic Sewage and Landfill Leachate<br>重力出流式膜生物反应器的膜通量及膜污染控制研究
%A CHEN Shao-hu
%A ZHENG Xiang
%A LIU Jun-xin
%A <br>陈少华
%A 郑祥
%A 刘俊新
%J 环境科学
%D 2006
%I 
%X A novel membrane bioreactor(MBR) with gravity flow was applied to treat domestic sewage and landfill leachate.The variation of permeate flux and its impact factors were studied.The long-term test showed that the average permeate flux of this MBR could be 11.2L·(m2·h)-1 under the pressure of 8.5 kPa for treating domestic sewage while 6.4L·(m2·h)-1 and 15.0 kPa,respectively,for landfill leachate.The permeate flux increased with increase of aeration density and decrease of activated sludge concentration when aeration density was less than 400m3·(m2·h)-1.While activated sludge concentration and aeration density had hardly impact on the permeate flux when aeration density was more than 400m3·(m2·h)-1.The performances of several different cleaning solutions were tested and the results showed that NaOH-NaClO solution had the best cleaning efficiency.The permeate flux can recovered over 85% of the initial flux.A very high concentration of soluble extracellular polymeric substances(soluble EPS) existed in landfill leachate compared with domestic sewage,which was the main cause leading to a lower permeate flux when treating landfill leachate.
%K membrane bioreactor
%K gravity flow
%K permeate flux
%K membrane fouling
%K domestic sewage
%K landfill leachate<br>膜生物反应器
%K 重力出流
%K 膜通量
%K 膜污染
%K 生活污水
%K 垃圾渗滤液
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=D63966068414DDF1&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=59906B3B2830C2C5&sid=4D7D2903CFD5410A&eid=16A32B3F11A2E663&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=22