Document Detail


Microbial community analysis of three municipal wastewater treatment plants in winter and spring using culture-dependent and culture-independent methods.
MedLine Citation:
PMID:  22806108     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Low temperatures can result in start-up and operational problems in wastewater treatment plants. The microbial community structures of three full-scale 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 NH(4) (+)-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 culture-independent 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 sturcture.
Authors:
Di Cui; Ang Li; Si Zhang; Changlong Pang; Jixian Yang; Jingbo Guo; Fang Ma; Jihua Wang; Nanqi Ren
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Publication Detail:
Type:  Journal Article     Date:  2012-03-28
Journal Detail:
Title:  World journal of microbiology & biotechnology     Volume:  28     ISSN:  1573-0972     ISO Abbreviation:  World J. Microbiol. Biotechnol.     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-07-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9012472     Medline TA:  World J Microbiol Biotechnol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  2341-53     Citation Subset:  IM    
Affiliation:
State Key Lab of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.
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