Effects of base types on waste activated sludge alkaline fermentation and dewaterability - 文章详情页

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摘要：

The　hydrolysis　and　acidification　abilities,　dewaterabilities　and　sludge　reduction　of　waste　activated　sludge　(WAS)　under　four　types　of　alkaline　conditions,　which　were　KOH,　NaOH,　Ca(OH)2　and　Na2CO3,　were　investigated.　Temperature　and　pH　value　were　controlled　at　35°C　and　10　respectively　for　all　alkaline　conditions　investigated.　WAS　demonstrated　different　hydrolysis　abilities,　acidification　abilities　and　dewaterabilities　under　the　four　types　of　alkaline　conditions.　The　order　of　WAS　hydrolysis　abilities,　acidification　abilities,　ammonia　and　phosphorus　release,　dewaterabilities　under　the　four　types　of　alkaline　conditions　were　Na2CO3　>　NaOH　≈　KOH　>　Ca(OH)2,,　NaOH　>　KOH　≈　Na2CO3　>　Ca(OH)2,　Na2CO3　>　NaOH　≈　KOH　>　Ca(OH)2　and　Ca(OH)2,　>Na2CO3　>　NaOH　≈　KOH,　respectively.　Volatile　suspended　solid　(VSS)　reduction　of　WAS　was　the　best　under　Na2CO3　condition;　while　under　NaOH　condition　total　suspended　solid　(TSS)　reduction　was　the　best.

关键词：

Alkaline fermentation; Base types; Dewaterability; Hydrolysis and acidification; Waste activated sludge

作者机构：

[ 1 ] [Su, G.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Huo, M.]School of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, China
[ 3 ] [Wang, C.]School of Urban and Environmental Sciences, Northeast Normal University, Changchun 130024, China
[ 4 ] [Zheng, B.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Wang, S.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Peng, Y.]Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, Engineering Research Center of Beijing, 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 Environmental Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

pyz@bjut.edu.cn

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