载铁活性炭的制备及其吸附水中砷的研究  

Study on preparation of activated charcoal modified by Fe^(3+) and its adsorption of As ( Ⅴ) from drinking water

作　　者：商连[1] 伍雅婧[1] 王慧[1] 

机构地区：[1]长安大学环境科学与工程学院,陕西西安710054

出　　处：《应用化工》2013年第10期1772-1774,共3页Applied Chemical Industry

基　　金：国家自然科学基金项目(20877036);陕西省自然科学基金项目(2006Z06)

摘　　要：用Fe3+对活性炭进行修饰,用于吸附水中的砷。结果表明,活性炭改性的最佳条件为:活性炭与12 000 mg/L的Fe3+溶液,在1∶100(g/mL)的情况下,振荡3 h,Fe3+吸附率近40%。活性炭对砷的吸附属于物理吸附,全过程无其他离子引入水中,不会对水体造成二次污染。获得了一种新的从饮用水中去除砷的方法。Activated carbon with a modified Fe3＋ for the adsorption of arsenic. The result indicated that the optimum condition of activated charcoal modified were as follows：the concentration of Fe3＋ solution was 12 000 mg/L,solid-to-liquid ratio is 1：100（g/mL） ,and oscillation for 3 h,the adsorption rate near 40%. Additionally, the adsorption of As （V） by the modification of activated charcoal belongs to physical adsorption, therefore, this method do not bring other ions into the water. A new remarkable method of re- move the nocuous residual chlorine from the drinking water was got.

关 键 词：饮用水 除砷 活性炭 

分 类 号：TQ424.1[化学工程] TU991.2[建筑科学—市政工程]