%0 Journal Article
%T Treatment of aniline by contact biological oxidation on the biofilm<br>生物膜接触氧化法处理苯胺废水
%A CAO Hongbin
%A LI Yuping
%A CHEN Yanli
%A ZHANG Yi
%A <br>曹宏斌
%A 李玉平
%A 陈艳丽
%A 张懿
%J 环境科学学报
%D 2004
%I 
%X Biological oxidation of aniline in a contact biological oxidation system, consisting of AN3 bacteria and a small part of nitrifying bacteria, was studied.The degradation products, microorganism population dynamics in the axial direction and influences of pH, concentrations of heavy metal ions on the rate of metabolic transformation of aniline during the development of the biofilm were investigated.The results indicated that the aniline was first degraded to NH+4, then to No-2 or No-3 during biofilm development.The density of nitrifying bacteria near the effluent was hundred times higher than that near the influent.The optimum pH for the metabolism of AN3 bacteria on the biofilm was in the range of 6.9-7.5.Heavy metal ions, especially Hg2+, inhibited the metabolism of the bacteria.
%K aniline
%K biological oxidation
%K contact biological membrane
%K nitrification<br>苯胺
%K 生物接触氧化
%K 硝化作用
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=56BB4FFD072CB76A&yid=D0E58B75BFD8E51C&vid=B91E8C6D6FE990DB&iid=CA4FD0336C81A37A&sid=27746BCEEE58E9DC&eid=42425781F0B1C26E&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=8&reference_num=11