Effects of different feeding modes of anaerobic digestion supernatant on AOA-SBR efficacy - 文章详情页

作者：

Li, X. (Li, X..) (学者：李星) | Peng, Y. (Peng, Y..) | He, Y. (He, Y..) | Ma, B. (Ma, B..) | Zhao, J. (Zhao, J..) (学者：赵京)

收录：

Scopus PKU CSCD CSSCI

摘要：

The　effects　of　six　feeding　modes　in　treating　anaerobic　digester　(AD)　supernatant　and　domestic　sewage　were　investigated　using　shortcut　nitrification　sequencing　batch　reactor　(SBR)　by　anaerobic-aerobic-anoxic　(AOA)　processes.　Batch　experiments　were　incubated　at　20.0℃　in　domestic　sewage-AD　supernatant　(24:1)　media,　and　the　ratio　of　ammonia　oxidizing　bacteria　(AOB)　was　7.34%.　AD　supernatant　was　injected　at　the　beginning　of　the　anaerobic　or　aerobic　phase　and　dosed　two　or　three　times　during　the　aerobic　phase,　hereafter　referred　to　as　SBR-a,　SBR-b,　SBR-c,　SBR-d,　SBR-e　and　SBR-f.　Soluble　chemical　oxygen　demand　(SCODCr),　PO43--P　and　NH4+-N　concentrations　were　also　determined　in　the　present　study.　The　results　showed　that　adding　AD　supernatant　had　no　effect　on　removal　of　organic　matter　at　various　feeding　modes.　However,　removal　of　PO43--P　was　low　when　AD　supernatant　was　treated　in　AOA-SBR　combined　with　domestic　sewage.　In　fact,　phosphate　loading　rate　(PLR)　increased　by　104.88%.　Concentrations　of　PO43--P　in　the　effluents　were　also　higher　than　2.0　mg/L　in　all　experimental　conditions,　which　could　have　been　the　limitation　of　the　AOA-SBR　system.　Specific　nitrite　production　rate　(SNPR)　in　dosing　AD　supernatant　was　significantly　higher　than　that　of　AOA-SBR,　but　only　in　the　treatment　of　domestic　sewage,　which　indicated　that　the　addition　of　AD　supernatant　helped　stabilize　shortcut　nitrification.　Adding　AD　supernatant　at　the　beginning　of　the　anaerobic　phase　in　AOA-SBR　attained　the　best　results,　with　increases　in　specific　ammonia　uptake　rate　(SAUR)　(0.1680　g/(g·d)),　SNPR　(0.1363　g/(g·d)),　and　simultaneous　nitrification　denitrification　(SND)　rate　to　26.64　%.　©　2016,　Editorial　Department　of　Molecular　Catalysis.　All　right　reserved.

关键词：

Anaerobic digester supernatant; Biological nitrogen removal; Domestic sewage; Sequencing batch reactor; Shortcut nitrification

作者机构：

[ 1 ] [Li, X.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Peng, Y.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [He, Y.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Ma, B.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 5 ] [Zhao, J.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China

通讯作者信息：

[Peng, Y.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Environmental and Energy Engineering, Beijing University of TechnologyChina

电子邮件地址：

pyz@bjut.edu.cn

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