Effect of surfactant on bound water content and extracellular polymers substances distribution in sludge

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Effect of surfactant on bound water content and extracellular polymers substances distribution in sludge
	Hong, Chen; Si, Yanxiao; Xing, Yi; Wang, ZhiQiang; Qiao, Qeng; Liu, Min
刊名	RSC ADVANCES
	2015
卷号	5 期号:30 页码:23383-23390
英文摘要	In this study, the effect of surfactant conditioning on bound water and extracellular polymers substances (EPS) in sludge was investigated. Results showed that by adding dodecyl dimethyl benzyl ammonium chloride (DDBAC), loosely bound EPS (LB-EPS) and slime layer EPS (S-EPS) contentswere increased, while tightly bound EPS (TB-EPS) and bound water contents (W-B) were reduced. As a result, the dewatering performance of sludge was enhanced. When 75 mg g(-1) of DDBAC were added, W-B in sludge decreased to 1.64 g g(-1), and the water content of dewatered sludge (W-C) dropped to 66.61%. EPS partially hydrolyzed into small molecular organics under DDBAC conditioning. Moreover, the quantity and species of organic functional groups in S-EPS were increased obviously. The TB-EPS content accounted for the majority of EPS in sludge, and the protein and polysaccharide in TB-EPS had a significant positive correlation with bound water, which was the main factor affecting W-B in sludge.
研究领域[WOS]	Chemistry, Multidisciplinary
WOS记录号	WOS:000351235800033
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32560]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Hong, Chen,Si, Yanxiao,Xing, Yi,et al. Effect of surfactant on bound water content and extracellular polymers substances distribution in sludge[J]. RSC ADVANCES,2015,5(30):23383-23390.
APA	Hong, Chen,Si, Yanxiao,Xing, Yi,Wang, ZhiQiang,Qiao, Qeng,&Liu, Min.(2015).Effect of surfactant on bound water content and extracellular polymers substances distribution in sludge.RSC ADVANCES,5(30),23383-23390.
MLA	Hong, Chen,et al."Effect of surfactant on bound water content and extracellular polymers substances distribution in sludge".RSC ADVANCES 5.30(2015):23383-23390.