Adsorption and coprecipitation of As(V) from aqueous solutions by aluminum hydroxide

摘要：

The effects of solution pH and initial concentration on adsorption and coprecipitation of As(V) from aqueous solutions by aluminum hydroxide Al(OH)3 for 50d and 1120d were studied. The XRD, FT-IR and SEM results indicated that there was only slight difference between the Al(OH)3 adsorbents before and after adsorption, but their crystal structure had not changed. The adsorption efficiency of As(V) onto Al(OH)3 increased with the increasing pH when pH<6.0. When pH>9, the adsorption efficiency decreased with the increasing pH. For the initial As(V) concentration Co=0.1 or 0.01 mmol/L, the adsorption efficiency exceeded 99% at pH 6-9 after 50d or 1120d reaction, but the As(V) concentration in the solution after adsorption for 1120d was higher than that for 50d.

作者: Meina LIANG Yanlin ZHAO Yinian ZHU Huili LIU Fenfen CAI

作者单位: College of Environmental Science and Engineering Guilin University of Technology Jian-Gan Road 12, Guilin 541004, P.R.China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）