The effect of temperature on short-cut nitrification and denitrification - 文章详情页

作者：

Shang, H. (Shang, H..) | Peng, Y. (Peng, Y..) | Zhang, J. (Zhang, J..) | Wang, S. (Wang, S..)

收录：

Scopus PKU CSCD

摘要：

The　effect　of　temperature　on　the　stabilization　of　short-cut　nitrification　and　denitrification　together　with　the　rates　of　nitrification　and　denitrification　were　studied　in　a　Sequencing　Batch　Reactor　(SBR)　treating　domestic　wastewater.　The　experimental　results　demonstrated　that　real-time　control　and　controlling　sludge　retention　time　(SRT　=　l0d)　could　realize　short-cut　nitrification　and　denitrification.　Experiments　were　carried　out　by　decreasing　the　temperature　of　the　system　whenever　the　nitrite　accumulation　reached　at　least　0.9　(NO2-　-N/NOx--N　≈　1).　The　system　was　held　at　each　temperature　for　at　least　a　month.　After　six　months,　the　nitrite　accumulation　exceeded　78.8%,　even　at　10×1　in　winter.　The　results　also　showed　that　temperature　had　a　great　effect　on　the　activities　of　AOB　and　NOB,　especially　AOB.　The　specific　ammonia　oxidation　rate　and　the　specific　denitrification　rate　were　4.49　and　2.91　times　higher,　respectively,　at　26°C　than　at　10°C.　It　is　obvious　that　decreasing　the　temperature　had　more　effect　on　nitrification　than　on　denitrification　in　this　short-cut　system.

关键词：

Low temperature/normal temperature; Short-cut nitrification and denitrification; Stabilization

作者机构：

[ 1 ] [Shang, H.]Key Laboratory of Beijing for Water Quality Science, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Shang, H.]Key Laboratory of Beijing for Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Peng, Y.]Key Laboratory of Beijing for Water Quality Science, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Peng, Y.]Key Laboratory of Beijing for Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zhang, J.]Key Laboratory of Beijing for Water Quality Science, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Zhang, J.]Key Laboratory of Beijing for Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China
[ 7 ] [Wang, S.]Key Laboratory of Beijing for Water Quality Science, Beijing University of Technology, Beijing 100124, China
[ 8 ] [Wang, S.]Key Laboratory of Beijing for Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

[Peng, Y.]Key Laboratory of Beijing for Water Quality Science, Beijing University of Technology, Beijing 100124, China

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