载Fe(Ⅲ)和La(Ⅲ)-氨基膦酸型螯合树脂选择性吸附痕量砷(V)  

SELECTIVE ADSORPTION OF TRACE ARSENIC (Ⅴ) FROM DRINKING WATER BY Fe(Ⅲ)- AND La(Ⅲ)-LOADED CHELATING RESIN HAVING PHOSPHONOMETHYLAMINO GROUPS

作　　者：赵雅萍[1] 王军锋[1] 尹静[2] 陈甫华[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071 [2]军事医学院卫生与环境研究所,天津300050

出　　处：《南开大学学报（自然科学版）》2002年第4期85-89,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：国家自然科学基金 ( 2 99770 1 0 );天津市自然科学基金 ( 99360 4 1 1 1 )

摘　　要：研究了 p H、时间、浓度和共存离子对载 Fe( )和载 La( )的氨基膦酸型螯合树脂去除饮用水中 As( )的影响 .结果表明 ,作为反应的螯合中心 ,Fe( )比 La( )对 As( )的亲和力更大 .动态实验表明 ,载 Fe( )的螯合树脂是一种有前景的饮用水除 As( )The effects of arsenic(Ⅴ) removal by Fe(Ⅲ)X and La(Ⅲ)X under different conditions, such as pH, time, concentration and common foreign anions were studied. The adsorption rate equation and isotherm of arsenic(Ⅴ) were obtained. In column experiment, the adsorption and stripping curves of arsenic on Fe(Ⅲ)X were shown, the saturation adsorption capacity was 4.05mg/g . It illustrates that Fe(Ⅲ)X is a promising adsorbent for arsenic removal from drinking water.$$$$

关 键 词：Fe LA 氨基膦酸 选择性吸附 痕量砷 配位体交换 螯合树脂 饮水处理 铁 镧 

分 类 号：TU991.2[建筑科学—市政工程]