中南大学学报（自然科学版）2011，Vol.42Issue(1)：266-271,6.
胶团强化超滤去除水溶液中Cd2+,Cu2+和Ni2+的研究
Removal of Cd2+,Cu2+ and Ni2+ in aqueous solution via micellar enhanced ultrafiltration
摘要
Abstract
The removal of Cd2+, Cu2+ and Ni2+ from aqueous solution via micellar-enhanced ultrafiltration and the effect of salts on metal removal were studied with anionic surfactant sodium dodecyl sulfate. The micelle sizes were determined by dynamic light scattering measurements. The results show that the micelle sizes and aggregation numbers of micelle decrease with the increase of surfactant concentration but increase with the increase of NaCl concentration. When the concentration of surfactant to metal ions in single or mixed systems is fixed at 10, the rejections of three metal ions are similar and higher than 98％. Metal ions are adsorbed on micelles by electrostatic attraction. The rejection of metal ion is dependent on the valence of metal ion but independent of metal species. High feed concentration of NaCl is very harmful to the rejection of Cd2+.关键词
膜/胶团强化超滤/表面活性剂/动态光散射/重金属分类
资源环境引用本文复制引用
方瑶瑶,曾光明,黄瑾辉,曲云欢,李雪,牛菁..胶团强化超滤去除水溶液中Cd2+,Cu2+和Ni2+的研究[J].中南大学学报（自然科学版）,2011,42(1):266-271,6.基金项目
国家自然科学基金资助项(50608028) （50608028）
长江学者和创新团队发展计划项(IRT0719) （IRT0719）
