Preparation and Characterization of a Composite Coagulant: Polyferric Titanium Sulfate

doi:10.1007/s11270-016-2766-6

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 水质生物转化研究中心

	Preparation and Characterization of a Composite Coagulant: Polyferric Titanium Sulfate
	Chen, Wei 1,2; Zheng, Huaili 1,2; Guo, Jinsong 3; Li, Fengting 4; Tang, Xiaomin 1; Liu, Bingzhi 1; Zhou, Yuhao 1
刊名	WATER AIR AND SOIL POLLUTION
	2016-03-01
卷号	227 期号:3 页码:17
关键词	Composite coagulant Polyferric sulfate Titanous sulfate Water treatment RSM
ISSN号	0049-6979
DOI	10.1007/s11270-016-2766-6
通讯作者	Zheng, HL (reprint author), Chongqing Univ, State Minist Educ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Chongqing 400045, Peoples R China.
英文摘要	In this study, a novel composite coagulant polyferric titanium sulfate (PFTS) was synthesized and the kaolin-fulvic acid simulated water was employed to verify the coagulation efficiency. To obtain the optimal conditions for preparing the composite coagulant, the parameters affecting the coagulation performance such as Ti/Fe, P/Fe, OH/Fe, and oxidizer dosage were evaluated by single factor experiments and response surface methodology. The structure and morphology of PFTS were investigated by some conventional methods and those affecting coagulation-flocculation behaviors such as coagulant dosage, water sample initial pH, were also examined. Flocs properties of PFTS were investigated by Mastersizer 2000. The results indicated that PFTS presented a porous and a compacted gel network structure, in which some major phase structure and chemical bonds were discovered. The jar tests demonstrated the superior coagulation performance at coagulant dosage of 20-30 mg/L and the optimum pH range of 7-8. The optimum synthetic conditions were Ti/Fe, P/Fe, OH/Fe molar ratio and oxidant adding speed of 0.13, 0.25, 0.29, and 4 mL/min, respectively. Under the optimal condition, the residual turbidity, (Dissolved organic matter) DOC removal and residual iron of 0.82, 53 %, and 0.08 mg/L, respectively, could be acquired by PFTS. The flocs analysis results manifested that the dominant mechanism in flocs growth is absorption-bridging and sweeping coagulation, while charge neutralization mechanisms is the primary in the formation of compact flocs.
资助项目	National Key Technologies R & D Program of China[2012BAJ25B09] ; 111 Project[B13041] ; Graduate Student Research Innovation Project in Chongqing[CYB14045]
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000371427300007
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/2297]
专题	水质生物转化研究中心
通讯作者	Zheng, Huaili
作者单位	1.Chongqing Univ, State Minist Educ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Chongqing 400045, Peoples R China 2.Chongqing Univ, Natl Ctr Int Res Low Carbon & Green Bldg, Chongqing 400045, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 4.Tongji Univ, State Key Lab Pollut Control & Resources Reuse, Shanghai 200092, Peoples R China
推荐引用方式 GB/T 7714	Chen, Wei,Zheng, Huaili,Guo, Jinsong,et al. Preparation and Characterization of a Composite Coagulant: Polyferric Titanium Sulfate[J]. WATER AIR AND SOIL POLLUTION,2016,227(3):17.
APA	Chen, Wei.,Zheng, Huaili.,Guo, Jinsong.,Li, Fengting.,Tang, Xiaomin.,...&Zhou, Yuhao.(2016).Preparation and Characterization of a Composite Coagulant: Polyferric Titanium Sulfate.WATER AIR AND SOIL POLLUTION,227(3),17.
MLA	Chen, Wei,et al."Preparation and Characterization of a Composite Coagulant: Polyferric Titanium Sulfate".WATER AIR AND SOIL POLLUTION 227.3(2016):17.