Enhanced production of short-chain fatty acids from waste activated sludge alkaline fermentation: The effect of sa-linity - 文章详情页

作者：

Xing, Li-Qun (Xing, Li-Qun.) | Peng, Yong-Zhen (Peng, Yong-Zhen.) (学者：彭永臻) | Jin, Bao-Dan (Jin, Bao-Dan.) | He, Yue-Lan (He, Yue-Lan.) | Zeng, Wei (Zeng, Wei.) (学者：曾薇)

收录：

EI Scopus PKU CSCD

摘要：

Short　chain　fatty　acids　(SCFAs)　were　used　as　high　quality　carbon　source　for　biological　denitrification　and　phosphorus　removal　process.　In　order　to　improve　the　SCFAs　production　of　waste　activated　sludge　(WAS)　in　alkaline　fermentation　system,　the　effect　of　salinity　(0~25　g/L)　on　the　WAS　alkaline　fermentation　(pH=10)　was　studied　at　20　and　35,　respectively.　The　results　showed　that　adding　appropriate　sodium　chloride　(NaCl)　enhanced　the　SCFAs　production.　The　highest　accumulation　of　SCFAs　appeared　at　15　g/L　NaCl　and　improved　by　42.3%　(20)　and　15.0%　(35)　comparing　with　no　NaCl　addition.　Further　researches　indicated　that　adding　NaCl　could　increase　the　release　of　substrate　(protein　and　polysaccharide)　to　produce　more　SCFAs,　accompanied　by　the　increase　of　C/N　(SCFAs/NH4+-N).　Therefore,　the　integrated　control　of　salinity　and　pH　could　enhance　the　SCFAs　generation　from　WAS　fermentation　and　promote　WAS　reduction　simultaneously.　©,　2015,　Chinese　Society　for　Environmental　Sciences.　All　right　reserved.

关键词：

Alkalinity Biological water treatment Denitrification Fatty acids Fermentation Sodium chloride Temperature

作者机构：

[ 1 ] [Xing, Li-Qun]Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Peng, Yong-Zhen]Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Jin, Bao-Dan]Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [He, Yue-Lan]Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Zeng, Wei]Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

彭永臻
[peng, yong-zhen]engineering research center of beijing for nitrogen and phosphorus removal and process control, key laboratory of beijing for water quality science and water environment recovery engineering, beijing university of technology, beijing; 100124, china

电子邮件地址：

pyz@bjut.edu.cn

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