On-line controlling system for nitrogen and phosphorus removal of municipal wastewater in a sequencing batch reactor (SBR) - 文章详情页

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摘要：

The　objectives　of　this　study　were　to　establish　an　on-line　controlling　system　for　nitrogen　and　phosphorus　removal　synchronously　of　municipal　wastewater　in　a　sequencing　batch　reactor　(SBR).　The　SBR　for　municipal　wastewater　treatment　was　operated　in　sequences:　filling,　anaerobic,　oxic,　anoxic,　oxic,　settling　and　discharge.　The　reactor　was　equipped　with　on-line　monitoring　sensors　for　dissolved　oxygen　(DO),　oxidation-reduction　potential　(ORP)　and　pH.　The　variation　of　DO,　ORP　and　pH　is　relevant　to　each　phase　of　biological　process　for　nitrogen　and　phosphorus　removal　in　this　SBR.　The　characteristic　points　of　DO,　ORP　and　pH　can　be　used　to　judge　and　control　the　stages　of　process　that　include:　phosphate　release　by　the　turning　points　of　ORP　and　pH;　nitrification　by　the　ammonia　valley　of　pH　and　ammonia　elbows　of　DO　and　ORP;　denitrification　by　the　nitrate　knee　of　ORP　and　nitrate　apex　of　pH;　phosphate　uptake　by　the　turning　point　of　pH;　and　residual　organic　carbon　oxidation　by　the　carbon　elbows　of　DO　and　ORP.　The　controlling　system　can　operate　automatically　for　nitrogen　and　phosphorus　efficiently　removal.　©　2008　Higher　Education　Press.

关键词：

Dissolved oxygen (DO); Nitrogen and phosphorus removal; Online control; Oxidation-reduction potential (ORP); pH; Sequencing batch reactor (SBR)

作者机构：

[ 1 ] [Li, J.]College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
[ 2 ] [Li, J.]College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
[ 3 ] [Ni, Y.]College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
[ 4 ] [Peng, Y.]College of Environmental Engineering, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Gu, G.]College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
[ 6 ] [Lu, J.]Hangzhou Sibao Sewage Treatment Plant, Hangzhou 310014, China
[ 7 ] [Wei, S.]College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
[ 8 ] [Cheng, G.]College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China
[ 9 ] [Ou, C.]College of Civil Engineering, Zhejiang University of Technology, Hangzhou 310014, China

通讯作者信息：

[Peng, Y.]College of Environmental Engineering, Beijing University of Technology, Beijing 100022, China

电子邮件地址：

pyz@bjut.edu.cn

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