Synergetically acting new flocculants on the basis of starch-graft-poly(acrylamide)-co-sodium xanthate
Synergetically acting new flocculants on the basis of starch-graft-poly(acrylamide)-co-sodium xanthate
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DOI：
10.1002/star.200600595
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发表时间：
2007-06-01
期刊：
影响因子：
2.3
通讯作者：
Zhang, Yongzhi
中科院分区：
文献类型：
--
作者：
Hao, Xuekui;Chang, Cling;Zhang, Yongzhi
以交联玉米淀粉、丙烯酰胺(AM)和黄原酸钠为原料，以环氧氯丙烷(EPI)为交联剂，硝酸高铈铵(CAN)为聚合引发剂，在水溶液中接枝共聚，合成了一种基于淀粉-接枝-聚(丙烯酰胺)共-黄原酸钠(CSAX)的协同作用新型絮凝剂。考察了交联剂、引发剂、AM、NaOH等因素对%Tr（浊度去除率）、%Trd（同时含有浊度和重金属离子的水样的浊度去除率）%Hr（重金属离子去除率）和%Hrd（同时含有重金属离子和浊度的水样的重金属离子去除率）的影响。经FTIR和元素分析证明， CSAX可以成功合成，并且可以去除水溶液中的致浑浊物质和重金属离子，在最佳合成条件下，CSAX表现出优异的性能，分别为％Tr = 98％，％Trd = 98.4％，％Hrd = 99％和％Hr = 91.6％。
A synergetically acting new flocculant on the basis of starch-graft-poly(acrylamide)co-sodium xanthate (CSAX) was synthesized by grafting copolymerization of crosslinked corn starch, acrylamide (AM), and sodium xanthate, using epichlorohydrin (EPI) as cross-linking agent and ceric ammonium nitrate (CAN) as polymerization initiator in aqueous solution. The effects of some factors, such as crosslinker, initiator, AM, NaOH, on the %Tr (turbidity removal rate), %Trd (turbidity removal rate of a water sample which has both turbidity and heavy metal ions %Hr (heavy metal ion removal rate) and %Hrd (heavy metal ions removal rate of water which has both heavy metal ions and turbidity), are investigated. As proven by FTIR and elemental analysis, the CSAX can be successfully synthesized and can remove both turbidity-causing substances and heavy metal ions from aqueous solutions. Under optimum synthesis conditions CSAX exhibits excellent performance, i.e. %Tr = 98%, %Trd = 98.4%, %Hrd = 99% and %Hr = 91.6%, respectively.