N2O emission and control in shortcut nitrification and denitrification and simultaneous nitrification and denitrification biological nitrogen removal systems - 文章详情页

作者：

Zhang, J.-R. (Zhang, J.-R..) | Wang, S.-Y. (Wang, S.-Y..) (学者：王淑莹) | Shang, H.-L. (Shang, H.-L..) | Peng, Y.-Z. (Peng, Y.-Z..) (学者：彭永臻) 展开

收录：

Scopus PKU CSCD

摘要：

SBR　reactors　were　used　to　investigate　the　N2O　emission　in　shortcut　nitrification　and　simultaneous　nitrification　and　denitrification　(SND).　Shortcut　nitrification　with　nitrosation　rate　above　90%　was　realized　by　real-time　control　strategy.　The　N2O　emission　and　variation　of　nitrosation　rate　were　investigated　under　4　DO　levels　(0.5,　1.0,　1.5,　2.0　mg/L).　The　results　turned　out　that　the　optimal　DO　to　maintain　high　nitrosation　rate　and　minimum　N2O　emission　was　1.5　mg/L　and　the　N2O　emission　was　0.06　g　per　ammonium　removed.　The　SBR　filled　with　carbon　fiber　performed　under　low　DO　and　pulse　feeding.　The　SND　rate　was　over　79%　during　the　experiment.　The　N2O　emission　was　studied　under　DO　0.2,　0.4,　1.0　and　1.5　mg/L.　It　turned　out　that　the　optimal　DO　was　1.0　mg/L　and　the　N2O　emission　was　0.021g　per　ammonium　removed.　Compared　to　the　shortcut　nitrification,　the　N2O　emission　of　SND　was　1/3　of　the　short-cut　nitrification　under　optimal　DO.

关键词：

Nitrous oxide (N2O); Real domestic wastewater; Shortcut nitrification and denitrification; Simultaneous nitrification and denitrification (SND)

作者机构：

[ 1 ] [Zhang, J.-R.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wang, S.-Y.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Shang, H.-L.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Peng, Y.-Z.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

王淑莹
[Wang, S.-Y.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

wsy@bjut.edu.cn

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