Effect of enhancing denitrifying phosphorus removal on microbial population variation in A2O process - 文章详情页

作者：

Wu, Changyong (Wu, Changyong.) | Peng, Yongzhen (Peng, Yongzhen.) (学者：彭永臻) | Wang, Shuying (Wang, Shuying.) (学者：王淑莹) | Ren, Nanqi (Ren, Nanqi.) | Wan, Chunli (Wan, Chunli.)

收录：

EI Scopus PKU CSCD

摘要：

Enhanced　denitrifying　phosphorus　removal　in　anaerobic-anoxic/oxic　(A2O)　process　is　an　effective　way　to　increase　the　removal　efficiency　of　nitrogen　and　phosphorus　when　treating　low　C/N　ratio　domestic　wastewater.　In　this　study,　a　52.5L　pilot-scale　reactor,　based　on　plug-flow　A2O　configuration,　was　used　to　treat　domestic　wastewater.　In　addition,　the　microbial　population　variation　was　investigated　by　polymerase　chain　reaction-denaturing　gradient　gel　electrophoresis　(PCR-DGGE).　The　results　showed　that　the　microbial　community　structure　and　dominant　bacteria　changed　with　the　variation　of　wastewater　quality　and　operating　parameters.　The　dynamic　change　of　microbial　population　was　consistent　with　the　variation　of　operation.　Sequence　results　of　DGGE　bands　showed　that　the　dominant　bacterial　community　in　the　system　was　Proteobacteria.　Acinetobacter　may　be　responsible　for　the　traditional　biological　phosphorus　removal　in　the　system,　but　it　disappeared　gradually　with　the　enhancement　of　denitrifying　phosphorus　removal.　Uncultured　Chlorobi　bacterium　increased　with　the　enhancement　of　denitrifying　phosphorus　removal　and　it　might　be　the　major　denitrifying　phosphate　accumulating　organisms　(DPAOs)　in　the　system.　©　All　Rights　Reserved.

关键词：

Anoxic water Bacteria Biological water treatment Chemicals removal (water treatment) Denitrification Electrophoresis Nitrogen removal Phosphorus Polymerase chain reaction Wastewater treatment

作者机构：

[ 1 ] [Wu, Changyong]State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Heilongjiang Harbin 150090, China
[ 2 ] [Peng, Yongzhen]State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Heilongjiang Harbin 150090, China
[ 3 ] [Peng, Yongzhen]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wang, Shuying]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Ren, Nanqi]State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Heilongjiang Harbin 150090, China
[ 6 ] [Wan, Chunli]State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Heilongjiang Harbin 150090, China

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电子邮件地址：

pyz@bjut.edu.cn

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