%0 Journal Article
%T Filtration Capability of the Bio-Dynamic Membrane<br>微网生物动态膜过滤性能的研究
%A Fan Bin
%A Huang Xi
%A Wen Xianghua
%A Yu Yan
%A <br>范彬
%A 黄霞
%A 文湘华
%A 于妍
%J 环境科学
%D 2003
%I 
%X The filter modules made of common mesh material were submerged in to a bioreactor to form a dynamic-membrane bioreactor. This paper studied the filtration capability of the dynamic bio-membrane forming on 100-micron Dacron mesh material. The outstanding solid-liquid separation capability of the dynamic bio-membrane was mainly contributed to the gel-layer attaching on the mesh material. The dynamic bio-membrane could checked 30%-60% TOC of various molecule weights ranging < 3000 to > 10(5), whereas its separation accuracy was not high enough to intercept all the organics of molecules weights larger than 10(5). The tap water filtration resistance of the dynamic bio-membrane sheet with gel-layer attaching on was about 1.9 x 10(9) m-1, which almost equaled to that of the untapped sheet. The resistance caused by cake-layer contributed about 70% to the total filtration resistance of the dynamic bio-membrane on working. The untapped dynamic bio-membrane sheet showed an initial resistance to tap water permeation, but the one with gel-layer attaching on had little initial resistance. The reason might be that the gel-layer eliminated the hydrophobicity of the mesh material.
%K bio-dynamic membrane
%K rejection to organics
%K molecule weight distribution
%K filtration resistance<br>生物动态膜
%K 有机物截留
%K 分子量分布
%K 过滤阻力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=D0D5F46C2FD9D86F&yid=D43C4A19B2EE3C0A&vid=B91E8C6D6FE990DB&iid=CA4FD0336C81A37A&sid=C753EB8AC8F551B9&eid=C3BF5C58156BEDF0&journal_id=0250-3301&journal_name=环境科学&referenced_num=25&reference_num=7