Comparison of coagulative colloidal microbubbles with monomeric and polymeric inorganic coagulants for tertiary treatment of distillery wastewater

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Comparison of coagulative colloidal microbubbles with monomeric and polymeric inorganic coagulants for tertiary treatment of distillery wastewater
	Zhang, Ming ; Cai, Zhongxia ; Xie, Li ; Zhang, Yin ; Tang, Linfeng ; Zhou, Qi ; Qiang, Zhimin ; Zhang, Hua ; Zhang, Daoyong ; Pan, Xiangliang
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-12-01
卷号	694 页码:-
关键词	Microbubble surface functionalization Monomeric and polymeric inorganic coagulant Colloidal gas aphrons Bio-recalcitrant dissolved organic matter Cassava distillery wastewater Flotation
ISSN号	0048-9697
英文摘要	The flotation using coagulative colloidal gas aphrons (CCGAs) is of great potential in effectively removing the recalcitrant dissolved organic matter (DOM) and colorants from the bio-chemically treated cassava distillery wastewater. As bubble modifier, the monomeric and polymeric inorganic coagulants need to be studied considering their distinct influence on the surfactant/coagulant complex, the properties of colloidal aphrons as well as the process performance and mechanisms. Such studies help to create robust CCGAs with high flotation potential. In this work, the commonly-used monomeric and polymeric Al(III)- and Fe(III)-coagulants were combined with the cationic surfactant - cetyl trimethylammonium bromide (CTAB) to generate CCGAs. The CCGAs functionalized with Al(III)-coagulants (both monomeric and polymeric ones) were featured as small bubble size, strong stability and high air content. Particularly, the monomeric Al(III)-coagulant (AlCl3 in this work) resulted in low surface tension and high foamability when being mixed with CTAB in the bubble generation solution. Those CCGAs achieved high removal efficiencies of DOM and colorants at low coagulant concentrations. The molecular weight of DOM in effluent was well controlled below 1 kDa by CCGAs. For the flocs obtained from CCGA-flotation, the characteristic Raman band of DOM and colorants showed the layer-by-layer variation of Raman intensity which decreased from the outer layer to the center. In contrast with the conventional coagulation-flotation, the reduction of coagulant dosage by CCGAs was 67% (AlCl3), 25% (polyaluminum chloride), 60% (Fe-2(SO4)(3)) and 40% (polyferric sulfate). The sludge production could then be largely reduced, and meanwhile, the retention time was shortened by 9.5 min. (C) 2019 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42632]
专题	生态环境研究中心_环境水质学国家重点实验室
作者单位	1.Tongji Univ, Coll Environm Sci & Engn, Key Lab Yangtze River Water Environm,Inst Biofilm, State Key Lab Pollut Control & Resources Reuse, 1239 Siping Rd, Shanghai 200092, Peoples R China 2.Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, Zhejiang, Peoples R China 3.Univ Chinese Acad Sci, Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, 18 Shuangqing Rd, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ming,Cai, Zhongxia,Xie, Li,et al. Comparison of coagulative colloidal microbubbles with monomeric and polymeric inorganic coagulants for tertiary treatment of distillery wastewater[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,694:-.
APA	Zhang, Ming.,Cai, Zhongxia.,Xie, Li.,Zhang, Yin.,Tang, Linfeng.,...&Pan, Xiangliang.(2019).Comparison of coagulative colloidal microbubbles with monomeric and polymeric inorganic coagulants for tertiary treatment of distillery wastewater.SCIENCE OF THE TOTAL ENVIRONMENT,694,-.
MLA	Zhang, Ming,et al."Comparison of coagulative colloidal microbubbles with monomeric and polymeric inorganic coagulants for tertiary treatment of distillery wastewater".SCIENCE OF THE TOTAL ENVIRONMENT 694(2019):-.