%0 Journal Article
%T The effects of direct electric current on the metabolism of nitrifying bacteria<br>直流电对硝化细菌活性的影响
%A CAO Hongbin
%A LI Xingang
%A SUN Jinsheng
%A ZHONG Fangli
%A <br>曹宏斌
%A 李鑫钢
%A 孙津生
%A 钟方丽
%J 环境科学学报
%D 2001
%I 
%X The nitrification efficiency and population dynamic of nitrifying bacteria in liquid culture and biofilm under series of direct electric current were experimentally investigated.The results indicated that the electric current less than 2.5A·m-2 had no effect on the cells in liquid,but if the electric current was more than 5A·m-2 the nitrification efficiency decreased.Biofilm could stand even higher current,when the current increased up to 15A·m-2 ,the nitrification efficiency only decreased 20%.In addition,the current also greatly affected the population dynamics of nitrifying biofilm.When the current was 15A·m-2 ,the biomass on the cathode,anode and packing decreased about 90%,58% and 8% respectively.The LP/dry biofilm weight increased when the current was high.
%K direct electric current
%K nitrification
%K biofilm<br>直流电
%K 硝化作用
%K 生物膜
%K 细菌活性
%K 废水处理
%K 生物处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=6A203FDFF28D4CCA&yid=14E7EF987E4155E6&vid=659D3B06EBF534A7&iid=E158A972A605785F&sid=5335AD3CFE6E14EA&eid=F10601728A1E9BEA&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=1&reference_num=11