%0 Journal Article
%T Phosphorus accumulation by bacteria isolated from a ontinuous-flow two-sludge system<br>Phosphorus accumulation by bacteria isolated from a continuous-flow two-sludge system
%A BAO Lin-lin
%A LI Dong
%A LI Xiang-kun
%A HUANG Rong-xin
%A ZHANG Jie
%A LV Yang
%A XIA Guang-qing
%A <br>BAO Lin-lin
%A LI Dong
%A LI Xiang-kun
%A HUANG Rong-xin
%A ZHANG Jie
%A LV Yang
%A XIA Guang-qing
%J 环境科学学报(英文版)
%D 2007
%I 
%X In this article, polyphosphate-accumulating organisms (PAOs) from a lab-scale continuous-flow two-sludge system was isolated and identified, the different phosphorus accumulation characteristics of the isolates under anoxic and aerobic conditions were investigated. Results showed that two kinds of PAOs were both found in the anoxic zones of the two-sludge system, one of them utilized only oxygen as electron acceptor, and the other kind utilized either nitrate or oxygen as electron acceptor. Of the total eight isolates, five isolates were capable of both utilizing nitrate and oxygen as electron acceptors to uptake phosphorus to some extent. And three of the five isolates showed good phosphorus accumulation capacities both under anoxic or aerobic conditions, two identified as Alcaligenes and one identified as Pseudomonas. Strcptococcus was observed weak anoxic phosphorus accumulation because of its weak denitrification capacity, but it showed good phosphorus accumulation capacity under aerobic conditions. One isolates identified as Enterobacteriaceae was proved to be a special species of PAOs, which could only uptake small amounts of phosphorus under anoxic conditions, although its denitrification capacity and aerobic phosphorus accumulation capacity were excellent.
%K aerobic phosphorus accumulation
%K anoxic phosphorus accumulation
%K continuous-flow two-sludge system
%K polyphosphate-accumulating organisms (PAOs)
%K system
%K isolated
%K bacteria
%K accumulation
%K small
%K anoxic conditions
%K special
%K species
%K weak
%K denitrification
%K capacity
%K Pseudomonas
%K good
%K electron acceptor
%K uptake
%K extent
%K total
%K kind
%K nitrate
%K oxygen<br>连续流动双污泥系统
%K 细菌
%K 分离
%K 磷积累
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=905DE53A738221D85F2642F8BDCC3C23&yid=A732AF04DDA03BB3&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=AFB2C35009D5D191&eid=396DD691E964F390&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=35