Effect of Organic Carbon Source on Start-up and Operation of the CANON Granular Sludge Process - 文章详情页

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The　effect　of　organic　carbon　on　the　start-up　and　operation　of　the　CANON　granular　sludge　process　was　investigated　in　two　SBR　reactors　with　different　strategies:　gradually　increased　organic　carbon　concentration　(R1)　and　without　organic　carbon　(R2).　The　results　showed　that　adding　50　mg•L-1　organic　carbon　accelerated　the　start-up　of　the　CANON　granular　sludge　process.　R1　and　R2　were　started　up　in　23　d　and　32　d,　respectively.　Moreover,　the　appropriate　organic　carbon　enhanced　the　activity　of　AOB,　AnAOB,　and　denitrification,　increasing　the　ammonia　removal　rates　and　total　nitrogen　(TN)　removal　rates.　The　maximum　ammonia　removal　rates　and　total　nitrogen　removal　rates　of　R1　were　92%　and　88%,　respectively.　The　maximum　ammonia　removal　rates　and　total　nitrogen　removal　rates　of　R2　were　89%　and　80%,　respectively.　Further　tests　showed　that　excessive　organic　carbon　concentration　decreased　the　activity　of　AOB　and　AnAOB　and　reduced　the　removal　efficiency　of　ammonia　and　total　nitrogen.　Adding　organic　carbon　promoted　denitrification　activity　and　increased　nitrogen　removal　efficiency.　©　2018,　Science　Press.　All　right　reserved.

关键词：

Organic carbon Efficiency Nitrogen removal Ammonia Granular materials Denitrification

作者机构：

[ 1 ] [Li, Dong]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Wang, Yan-Ju]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Lü, Yu-Feng]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Cao, Rui-Hua]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Li, Shuai]State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin; 150090, China
[ 6 ] [Zhang, Jie]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Zhang, Jie]State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin; 150090, China

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