Factors optimization of rapid start-up for partial nitrification in SBR process - Details

Author：

Li, L.-Y. (Li, L.-Y..) | Peng, Y.-Z. (Peng, Y.-Z..) (Scholars：彭永臻) | Yang, Q. (Yang, Q..) | Gu, S.-B. (Gu, S.-B..) | Li, L. (Li, L..)

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Abstract：

Factors　of　rapid　start-up　for　partial　nitrification　were　investigated　in　the　sequencing　batch　reactor　(SBR)　treating　real　domestic　wastewater　with　low　CODATN　ratio.　It　was　concluded　that　the　optimal　conditions　consisted　of　temperature　30°C,　dissolved　oxygen　(DO)　2.0mg/L　and　sludge　retention　time(SRT)　7　days.　Partial　nitrification　to　nitrite　was　achieved　under　real-time　control　in　32　cycles.　The　nitrite　accumulation　rate　(NO2--N/NOx--N)　was　over　90%　when　the　TN　elimination　efficiency　was　above　95%.　In　the　subsequent　64　days,　the　system　was　also　successfully　operated　at　room　temperature　(20~24°C).　Fluorescent　in-situ　hybridization　(FISH)　analysis　showed　that　the　population　of　ammonia　oxidizing　bacteria　(AOB)　increased　by　38.9%　while　nitrite　oxidizing　bacteria(NOB)　decreased　by　53.2%　after　32　cycles.　NOB　could　be　gradually　washed　out　by　the　online　control　of　DO　and　aerobic　duration,　so　steady　partial　nitrification　and　nitrogen　removal　efficiency　could　be　achieved　and　enhanced,　respectively.

Keyword：

Domestic wastewater; Partial nitrification; Rapid start-up and stabilization; Real-time control; SBR

Author Community：

[ 1 ] [Li, L.-Y.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Peng, Y.-Z.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Yang, Q.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Gu, S.-B.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Li, L.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

Reprint Author's Address：

[Li, L.-Y.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

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Source ：

China Environmental Science

ISSN： 1000-6923

Year： 2009

Issue： 3

Volume： 29

Page： 312-317

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 8

Affiliated Colleges：

化学与生命科学学院本学院/部未明确归属的数据

建筑与城市规划学院本学院/部未明确归属的数据

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