Effect of nitrate recycling ratio on denitrifying phosphorus removal characteristics in A2O-BCO process - 文章详情页

作者：

收录：

EI Scopus PKU CSCD

摘要：

The　characteristics　of　biological　nitrogen　(N)　and　phosphorus　(P)　removal　under　different　nitrate　recycling　ratios　were　investigated　in　a　Anaerobic/Anoxic/Oxic　(A2O)-Biological　Contact　Oxidation　(BCO)　system　when　treating　low　C/N　in　municipal　wastewater.　The　results　indicated　that　the　removal　of　N　and　P　was　achieved　simultaneously,　and　denitrifying　phosphorus　removal　(DPR)　process　was　realized　with　the　total　hydraulic　retention　time　(HRT)　of　A2O　at　8h,　sludge　reflux　ratio　of　100%,　and　nitrate　recycling　ratios　set　as　100%,　200%,　300%　and　400%　respectively.　The　effluent　concentration　of　COD　was　less　than　50mg/L.　The　removal　efficiencies　of　total　nitrogen　(TN)　were　48.8%,　66.5%,　75.6%　and　62.5%,　and　the　removal　efficiencies　of　total　phosphorus　(TP)　were　86.0%,　90.3%,　91.0%　and　95.0%　under　various　nitrate　recycling　ratios.　When　the　nitrate　recycling　ratio　was　set　at　300%,　average　concentration　of　TN　and　TP　in　effluent　were　14.96mg/L　and　0.49mg/L.　The　amount　of　denitrifying　phosphorus　removed　was　increased　slightly　as　the　nitrate　recycling　ratio　improved.　When　the　nitrate　recycling　ratio　was　set　at　400%,　the　amount　of　P　removed　by　DPR　accounted　for　98%　of　the　total　phosphorus　removed.　©,　2014,　Chinese　Society　for　Environmental　Sciences.　All　right　reserved.

关键词：

Biological water treatment Chemical oxygen demand Chemicals removal (water treatment) Denitrification Efficiency Effluents Nitrates Nitrogen Nitrogen removal Recycling Removal Wastewater reclamation Wastewater treatment

作者机构：

[ 1 ] [Wang, Cong]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Wang, Shu-Ying]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Zhang, Miao]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Wang, Chuan-Xin]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Xue, Xiao-Fei]Beijing Enterprises Water Group (China) Investment Limited, Beijing ; 100124, China
[ 6 ] [Pang, Hong-Tao]Beijing Enterprises Water Group (China) Investment Limited, Beijing ; 100124, China
[ 7 ] [Peng, Yong-Zhen]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

王淑莹
[wang, shu-ying]key laboratory of beijing for water quality science and water environment recovery engineering, engineering research center of beijing, beijing university of technology, beijing; 100124, china

电子邮件地址：

查看成果更多字段

成果类型
所属机构

所有年份指定年份从至