载La(Ⅲ)-和Fe(Ⅲ)-氨基膦酸型螯合树脂对氟吸附性能的比较  

Comparison of Fluoride Adsorption of La(Ⅲ)-and Fe(Ⅲ)-Carried Phosphonoamidic Chelating Resins

作　　者：赵雅萍[1] 祁旭 徐斌 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]内蒙古自治区包头市环保局,包头014040 [3]海南省武警黄金九支队化验室,海口570216

出　　处：《上海环境科学》2004年第3期96-99,共4页Shanghai Environmental Sciences

基　　金：国家自然科学基金;编号29977010

摘　　要：研究并比较了载La(Ⅲ)和载Fe(Ⅲ)大孔氨基膦酸型螯合树脂对饮用水中氟离子的吸附特性。氟在载La(Ⅲ)和载Fe(Ⅲ)的螯合树脂上的吸附不随pH的变化而改变,载金属螯合树脂对氟的饱和吸附容量分别为3.78、3.55mg/g,吸附方式符合Freundlich吸附等温式,代表性竞争离子不影响氟在螯合树脂上的吸附。结果表明载Fe(Ⅲ)和载La(Ⅲ)的螯合树脂是一种有前景的饮水氟去除吸附剂。The fluoride adsorbing performance of La（Ⅲ）-and Fe（Ⅲ）-carried large pore phosphonoamidic chelating resins in drinking water was studied. It has been found that the adsorption of fluoride on La（Ⅲ）-and Fe （Ⅲ）-carried chelating resins was independent of pH value. Their saturation adsorption capacities reached 3.78mg/g and 3.55mg/g respectively. The adsorption mode followed a Freundlich isotherm, and common foreign ions did not interfere with the fluoride adsorption. It shows that La（Ⅲ）-and Fe（Ⅲ）-carried chelating resins will be promising adsorbents for fluoride removal from drinking water.

关 键 词：高氟 饮用水 吸附去除 配位体交换 螯合树脂 

分 类 号：O614.811[理学—无机化学] TF845[理学—化学]