Effect of intermittently aerate on the simultaneous nitrification and denitrification (SND) in MBR - 文章详情页

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A　laboratory-scale　intermittently　aerate　membrane　was　applied　to　treat　domestic　sewage.　At　hydraulic　retention　tims　(HRT)of　6h　and　dissolved　oxygen　of　12mg/L　in　aeration,　three　aeration/non-aeration　cycles　including　60min/60min,　60min/90min　and　90min/60min　were　experimented　separately,　which　form　microenvironment　of　aerobic/anoxia　to　reach　simultaneous　nitrification　and　denitrification.　At　a　result,　more　than　90%　of　COD　and　NH4-N　was　removed,　among　which　average　74%　of　TN　was　removed　in　aeration/non-aeration　cycles　of　60min/60min.　at　the　same　time,　membrane　flux　could　be　renewed　in　initial　level　approximately　by　chemical　cleaning.　©　2011　IEEE.

关键词：

Sewage Dissolved oxygen Chemical cleaning Nitrification Denitrification

作者机构：

[ 1 ] [Zhang, Yan]Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering, College of Arc. and Civ. Eng., Beijing University of Technology, Beijing, China
[ 2 ] [Wang, Hui]Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering, College of Arc. and Civ. Eng., Beijing University of Technology, Beijing, China
[ 3 ] [Zhang, Yanqing]Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering, College of Arc. and Civ. Eng., Beijing University of Technology, Beijing, China
[ 4 ] [Yan, Shengyong]Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering, College of Arc. and Civ. Eng., Beijing University of Technology, Beijing, China
[ 5 ] [Yang, Zhengyang]Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering, College of Arc. and Civ. Eng., Beijing University of Technology, Beijing, China
[ 6 ] [Wang, Lili]Beijing Key Lab of Water Quality Science and Water Environmental Restoration Engineering, College of Arc. and Civ. Eng., Beijing University of Technology, Beijing, China

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yzhang@bjut.edu.cn

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