Adsorption-Desorption Characteristics of Quinclorac on Clay Minerals

摘要：

　　Adsorption-desorption characteristics of quinclorac on the surfaces of montmorillonite,attapulgite and diatomite were investigated.The results show that the isotherm adsorption-desorption of quinclorac on three clay minerals all fitted Freundlich equation very well.The adsorption capacity of clay minerals for quinclorac followed the order montmorillonite > attapulgite > Diatomite,The quinclorac was easily adsorbed on the minerals,and the adsorption could reach equilibrium after 16 hour,With in the range o f pH 3-9,pH value play larger effect on the adsorption-desorption quinclo-ra on three of clay mineral,but which have bigger change varies with the type of clay minerals composed of different,in the range of 15℃-35℃,whereas adsorption by three of clay mineral decreased and then increased as temperature rose.The desorption ratio is increased as the temperature increases

关键词： Quinclora Adsorption desorption monmorillonite palygorskite Diatomite

作者: YANG Li-hua GONG Dao-xin YUAN Ya-jie ZHOU Jian CHEN Xuan-yu WANG Han

作者单位: College of Resource and Environment,Hunan Agricultural University,Changsha 410128,China;Institute of College of Resource and Environment,Hunan Agricultural University,Changsha 410128,China

会议类型: 国际会议

会议名称: 3rd International Conference on Pollution Ecology(第三届污染生态学国际会议(3rd ICPE))

会议地点: 天津

会议语种:英文

页码: 49-50

在线出版日期: 2012-11-06（万方平台首次上网日期，不代表论文的发表时间）