摘要
采用自制的阳离子壳聚糖对铅、汞、镉离子进行吸附试验和共吸附试验,研究了阳离子壳聚糖对铅、汞、镉离子的吸附能力和共吸附情况.结果表明:阳离子壳聚糖对汞、铅、镉单独存在时吸附效果好,最大吸附量分别为1.310,1.140,1.000 mmol/g;汞、铅、镉离子共存时,阳离子壳聚糖对汞、铅、镉离子的吸附能力和总吸附量明显下降,阳离子壳聚糖优先吸附汞、铅离子.
Solely adsorption and common adsorption of cationic chitosan to lead ions, mercury ions and cadmium ions are studied through solely adsorption and common adsorption tests of self - regulating cationic chitosan to lead ions, mercury ions and cadmium ions and reviewing the effect of time dosage and pH to adsorption. The result shows that the maximum adsorption capacity of cationic chitosan to lead ions, mercury ions and cadmium ions is 1. 310,1. 140, 1 000 mmol/g respectively;the adsorbing ability and total adsorbing capacity of cationic chitosan to lead ion ,mercury ion ,cadmium ion descend clearly and mercury ion and lead ions are adsorbed priority when all ions are concomitant.
出处
《华北水利水电学院学报》
2007年第5期65-67,共3页
North China Institute of Water Conservancy and Hydroelectric Power
基金
河南省科技攻关项目(0324028)
关键词
阳离子壳聚糖
铅离子
汞离子
镉离子
共吸附
cationic chitosan
lead ion
mercury ion
cadmium ion
common adsorption
