Efficient nitrogen removal from domestic wastewater by CANON granular sludge - Details

Author：

Li, Dong (Li, Dong.) (Scholars：李冬) | Su, Qingling (Su, Qingling.) | Liang, Yuhai (Liang, Yuhai.) | Wu, Qing (Wu, Qing.) | Zhang, Jie (Zhang, Jie.) (Scholars：张杰)

Indexed by：

EI Scopus PKU CSCD

Abstract：

The　feasibility　of　CANON　granular　sludge　for　efficient　nitrogen　removal　from　domestic　wastewater　was　investigated　in　SBR.　Firstly,　CANON　granular　sludge　was　started　by　stirring　under　high　ammonia　concentration　conditions,　then　granular　sludge　was　increasingly　added　to　improve　the　performance　of　nitrogen　removal.　Finally,　the　feasibility　for　domestic　wastewater　treating　was　investigated.　The　results　show　that　CANON　granular　sludge　could　start-up　within　40　days,　the　size　of　granular　sludge　reached　760　μm　and　the　total　nitrogen　removal　rate　reached　1.01　kg/(m3·d)　within　126　days.　A　linear　relationship　between　the　ratio　of　polysaccharide　and　protein　and　the　particle　size　growth　was　found.　The　total　nitrogen　removal　rate　increased　rapidly　to　3.22　kg/(m3·d)　within　77　days　by　adding　granular　sludge.　Simultaneous　removal　of　nitrogen　and　COD　proved　that　the　CANON　granular　sludge　could　be　applied　as　an　efficient　approach　for　treating　domestic　wastewater.　©,　2015,　Harbin　Institute　of　Technology.　All　right　reserved.

Keyword：

Wastewater treatment Ammonia Granular materials Nitrogen removal Particle size

Author Community：

[ 1 ] [Li, Dong]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Su, Qingling]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Liang, Yuhai]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Wu, Qing]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Zhang, Jie]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Zhang, Jie]State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin; 150090, China

Reprint Author's Address：

李冬
[li, dong]key laboratory of beijing for water quality science and water environment recovery engineering, beijing university of technology, beijing; 100124, china

Email：

lidong2006@bjut.edu.cn

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