Characteristics of nitrogen and phosphorus removal by using two granular sludge process in sequencing batch reactors - Details

Author：

Liu, X. (Liu, X..) (Scholars：刘晓) | Wang, S. (Wang, S..) | Peng, Y. (Peng, Y..) | Wu, L. (Wu, L..) | Zhu, Y. (Zhu, Y..)

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Scopus PKU CSCD

Abstract：

By　using　synthetic　wastewater,　the　characteristics　of　denitrifying　phosphorus　removal　process　in　a　lab-scale　two-sludge　anaerobic/anoxic/nitrification　SBR　(A　2NSBR)　aerobic　granular　system　was　studied.　The　result　showed　that　the　two-sludge　system　ensured　the　denitrifying　and　dephosphorus　bacteria　to　grow　at　their　optimal　states,　which　was　favorable　for　the　stability　of　nitrogen　and　phosphorus　removal　efficiency.　When　the　influent　COD　was　controlled　at　300　mg·L　-1,　the　COD　removal　efficiency　was　78.8%.　Most　of　the　COD　was　stored　as　PHA　in　polyphosphate　accumulating　organisms　(PAOs).　When　DO　was　controlled　at　3.55~4.90　mg·L　-1　and　5.6~6.6　mg·L　-1　in　nitrification　SBR,　the　NH　4　+-N　removal　efficiency　reached　87.0%　and　94.5%,　respectively.　It　was　also　demonstrated　that　the　removal　efficiency　of　phosphorus　was　only　72%　when　there　was　only　settled　anoxic　phase　in　A/A/O　SBR,　while　it　increased　to　85%　when　post-aeration　stage　was　added.　Most　of　the　NO　x　--N　(NO　2　--N+NO　3　--N)　reduction　occurred　in　the　anoxic　phase,　during　which　NO　x　--N　was　electron　acceptors　and　PHA　was　electron　donors.　On　average　NO　x　-　removal　efficiency　was　90.6%.

Keyword：

Aerobic granular sludge; Denitrifying phosphorus removal; Denitrifying phosphorus removal bacteria; Sequencing batch reactor; Two-sludge process

Author Community：

[ 1 ] [Liu, X.]School of Environment and Energy Engineering, Beijing University of Technology, Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing 100124, China
[ 2 ] [Wang, S.]School of Environment and Energy Engineering, Beijing University of Technology, Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing 100124, China
[ 3 ] [Peng, Y.]School of Environment and Energy Engineering, Beijing University of Technology, Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing 100124, China
[ 4 ] [Wu, L.]School of Environment and Energy Engineering, Beijing University of Technology, Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing 100124, China
[ 5 ] [Zhu, Y.]School of Environment and Energy Engineering, Beijing University of Technology, Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing 100124, China

Reprint Author's Address：

[Wang, S.]School of Environment and Energy Engineering, Beijing University of Technology, Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Beijing 100124, China

Email：

wsy@bjut.edu.cn

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Source ：

Acta Scientiae Circumstantiae

ISSN： 0253-2468

Year： 2012

Issue： 7

Volume： 32

Page： 1537-1541

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 8

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化学与生命科学学院本学院/部未明确归属的数据

材料科学与工程学院本学院/部未明确归属的数据

建筑与城市规划学院本学院/部未明确归属的数据

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