Partial nitritation and phosphorus removal in improved SBR process treating domestic wastewater - Details

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Abstract：

The　stable　operation　of　dephosphorization-nitrosation　was　realized　by　a　sequencing　batch　reactor　(SBR)　with　improved　operating　strategy　at　normal　temperature　(20~25).　The　operating　strategy　include　water　loading,　anaerobic　mixing,　aeration　mixing,　settling,　drainage,　selective　sludge　discharging　and　sludge　bed　anoxic　mixing.　In　addition,　the　sludge　age　was　20d　and　the　dissolved　oxygen　was　0.2~0.5　mg/L.　The　results　showed　that　the　TP　removal　rate　was　95.9%~97.1%　and　the　volumetric　load　of　ammonium　removal　during　aeration　phase　was　0.242　kg　N/　(m3·d).　The　effluent　of　dephosphorization-nitrosation　with　the　TP　was　0.1~0.4　mg/L　and　the　ratio　of　ammonia　nitrogen　and　nitrite　nitrogen　was　about　1:1,　which　was　appropriate　for　the　influent　of　anaerobic　ammonium　oxidation　process.　©,　2015,　Chinese　Society　for　Environmental　Sciences.　All　right　reserved.

Keyword：

Ammonia Anoxic water Mixing Chemical reactions Nitrogen Phosphorus Wastewater treatment Effluents Nitrogen removal Batch reactors Dissolved oxygen

Author Community：

[ 1 ] [Zhou, Yuan-Zheng]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Li, Dong]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Su, Dong-Xia]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Zhang, Gong-Liang]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Zhang, Xiao-Jing]State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin; 150090, China
[ 6 ] [Liang, Yu-Hai]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Zhang, Jie]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Zhang, Jie]State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin; 150090, China

Reprint Author's Address：

李冬
[li, dong]key laboratory of beijing for water quality science and water environment recovery engineering, beijing university of technology, beijing; 100124, china

Email：

lidong2006@bjut.edu.cn

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