Preparation and properties of a novel macromolecular heavy metal flocculant CSAX

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	Preparation and properties of a novel macromolecular heavy metal flocculant CSAX
	Hao, Xuekui 1,2; Chang, Qing 2
刊名	Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae
	2008-09-01
卷号	28 期号:9 页码:1867-1871
关键词	Amides Flocculation Macromolecules Polyacrylates Reagents Scanning electron microscopy Sodium hydroxide Starch Cross-linked starch Cross-linking reagents Energy dispersive x-ray spectrometries (EDS) Exterior structures Optimum synthesis Preparation conditions Synthetic waste water Xanthate
ISSN号	02532468
英文摘要	A macromolecular heavy metal flocculant, crosslinked stareh-graft-polyacrylamide-co-sodium xanthate (CSAX), was synthesized using corn starch as matrix, epichlorohydrin (EPI) as cross-linking reagent, eerie ammonium nitrate (CAN) as initiator, acrylamide as monomer and CS2 and NaOH as xanthation reagents. The products were characterized by FTIR and elemental analysis. The effects of the preparation conditions, such as the dosage of EPI, CAN, NaOH and CS2 were investigated. The optimum synthesis conditions were 8ml EPI/100g starch, 6.6710-4mol L-1 CAN and the ratio of crosslinked starch:NaOH:CS2=2:6:2.4. The sludge formed by CSAX and wastewater in jar tests was characterized by Scanning Electron Microscopy (SEM) and Energy dispersive X-ray spectrometry (EDS). The exterior structure and components have evidently changed. The jar tests showed that when the dosage of CSAX was l00molL-1, the rate of removal of Cu2+, Ni and turbidity in synthetic wastewater reached 99.1%, 82.3% and 96.6% respectively.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111947]
专题	兰州理工大学
作者单位	1.Lanzhou Polytechnic College, Lanzhou 730050, China 2.School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
推荐引用方式 GB/T 7714	Hao, Xuekui,Chang, Qing. Preparation and properties of a novel macromolecular heavy metal flocculant CSAX[J]. Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae,2008,28(9):1867-1871.
APA	Hao, Xuekui,&Chang, Qing.(2008).Preparation and properties of a novel macromolecular heavy metal flocculant CSAX.Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae,28(9),1867-1871.
MLA	Hao, Xuekui,et al."Preparation and properties of a novel macromolecular heavy metal flocculant CSAX".Huanjing Kexue Xuebao / Acta Scientiae Circumstantiae 28.9(2008):1867-1871.