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Title of Journal: World J Microbiol Biotechnol

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Abbravation: World Journal of Microbiology and Biotechnology

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Springer Netherlands

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DOI

10.1016/0022-328x(89)87063-9

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1573-0972

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Microbial community analysis of three municipal wa

Authors: Di Cui Ang Li Si Zhang Changlong Pang Jixian Yang Jingbo Guo Fang Ma Jihua Wang Nanqi Ren
Publish Date: 2012/03/28
Volume: 28, Issue: 6, Pages: 2341-2353
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Abstract

Low temperatures can result in startup and operational problems in wastewater treatment plants The microbial community structures of three fullscale biological processes for municipal wastewater treatment namely anoxic–oxic activated sludge A/O process oxidation ditch and sequencing batch reactor in winter and spring were investigated The performances of the three biological processes were all stable during winter and spring Comparing all three plants the NH4 +N removal efficiency using the A/O process was found to be the highest during both winter and spring According to the similarity coefficient of the polymerase chain reaction and denaturing gradient gel electrophoresis analysis determined via the cultureindependent method the microbial community structure is the most stable using the A/O process at different temperatures The dominant members primarily belonged to Proteobacteria Nitrospira and Bacteroidetes In addition Proteobacteria was the dominant member in the activated sludge utilizing peptone glucose and fatty acid Compared with other biological processes the A/O process was superior at low temperatures based on its pollution removal performance and stable microbial community sturctureThis work was supported by the National Creative Research Group from the National Natural Science Foundation of China No 51121062 the National Natural Science Foundation of China Nos 51108120 51178139 and 51108145 the 4th China Postdoctoral Science Special Foundation No 201104430 the 46th China Postdoctoral Science Foundation No 20090460901 the Key Projects of National Water Pollution Control and Management of China Nos 2008ZX07313001 and 2012ZX07301001 and the Science and Technology Development Program of Jilin Province No 201101108 We thank the EssayStar Company http//essaystarcom/ for their English language editing

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