Enrichment and culture of major organism groups in enhanced biological phosphorus removal systems - Details

Author：

You, Yang (You, Yang.) | Yuan, Zhiguo (Yuan, Zhiguo.) | Li, Xiyao (Li, Xiyao.) | Peng, Yongzhen (Peng, Yongzhen.) (Scholars：彭永臻)

Indexed by：

EI Scopus PKU CSCD

Abstract：

This　research　focused　on　the　enrichment　of　phosphorus　accumulating　organisms　(PAO)　and　glycogen　accumulating　organisms　(GAO)　in　enhanced　biological　phosphorus　removal　(EBPR)　systems-SBR　reactors　fed　with　activated　sludge.　P/C　and　the　carbon　sources　were　considered　as　two　main　factors　to　control　the　enrichment　conditions.　So　high　P/C　and　alternate　acetate　and　propionate　were　supplied　to　PAO,　low　P/C　and　acetate　were　supplied　to　g-GAO,　and　low　P/C　and　propionate　were　supplied　to　α-GAO.　Under　the　suitable　pH,　temperature,　DO　of　the　aerobic　phase　and　load　of　the　influent,　the　enrichment　of　these　three　kinds　of　groups　was　achieved　with　the　results　below:　Accwnulibacter　reached　80%　of　the　total　bacteria,　and　the　efficiency　of　P　removal　was　over　than　98%.　Competibacter　could　reach　90%of　the　total　bacteria,　and　also,　α-GAO　was　a　absolutely　predominant　group　in　its　reactor.　Furthennore,　details　just　like　the　autoclaved　feed　and　the　completely　dissolved　feed　can　affect　the　results　of　the　enrichment　work.

Keyword：

Blast enrichment Biological water treatment Wastewater treatment Volatile fatty acids Aerobic bacteria

Author Community：

[ 1 ] [You, Yang]School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
[ 2 ] [Yuan, Zhiguo]Advanced Wastewater Management Centre, University of Queensland, Brisbane 4072, Australia
[ 3 ] [Li, Xiyao]School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Peng, Yongzhen]School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
[ 5 ] [Peng, Yongzhen]School of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100022, China