Effect of super-alkali pretreatment and alkaline intensity on the waste activated sludge fermentation - 文章详情页

作者：

Peng, Y. (Peng, Y..) | Xing, L. (Xing, L..) | Jin, B. (Jin, B..) | Wang, S. (Wang, S..)

收录：

Scopus PKU CSCD

摘要：

In　order　to　improve　the　sludge　fermentation　performance　and　increase　the　short　chain　fatty　acid　(SCFAs)　production,　the　influence　of　different　basicity　(alkaline　pH=10,　super-alkaline　pH=12　and　super-alkali　pretreatment　pH=12　alkaline　pH=10)　on　WAS　hydrolysis　acidification　was　studied　at　25　℃.　The　results　showed　that　the　super-alkaline　fermentation　and　super-alkali　pretreatment-alkali　fermentation　could　improve　the　production　of　SCOD,　DNA,　protein　and　polysaccharide　compared　with　alkaline　fermentation,　which　provided　abundant　acidification　substance　for　acidification　bacteria.　It　also　found　that　the　activity　of　acidification　bacteria　was　inhibited　in　the　super-alkaline　fermentation,　which　led　to　the　lower　SCFAs　production　than　other　conditions.　However,　the　SCFAs　and　acetic　acid　were　enhanced　significantly　in　the　super-alkali　pretreatment　alkali　fermentation,　which　increased　by　20.00%　and　23.00%　respectively　compared　with　the　alkaline　fermentation.　Obviously,　the　super-alkali　pretreatment　alkali　fermentation　was　more　conducive　to　WAS　anaerobic　fermentation　to　producing　acid.　©　2016,　Beijing　University　of　Technology.　All　right　reserved.

关键词：

Alkaline intensity; Anaerobic fermentation; Short chain fatty acids; Waste activated sludge

作者机构：

[ 1 ] [Peng, Y.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Xing, L.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Jin, B.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Wang, S.]Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing for Nitrogen and Phosphorus Removal and Process Control, Beijing University of Technology, Beijing, 100124, China

通讯作者信息：

电子邮件地址：

查看成果更多字段

成果类型
所属机构

所有年份指定年份从至