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一、引言F.J.Maier 在水中除氟方法的综述中,曾介绍美国专利(U.S.Patent 2.210.965,Aug.13,1940)使用天然沸石或合成沸石为滤料,处理水中氟的方法;但是,并未从机理上弄清沸石完全转为起阴离子交换作用的可能性及用可溶性铝盐使其再生时铝离子与沸石结构的关系。因此 F.J.Maier 认为该法效率极低,予以否定。R.L.Morris 等人在使用沸石为交换剂的民用硬水软化设备时,发现过氟化物在离子交换过程中的吸附和
I. INTRODUCTION In the review of Fluoride removal methods in water, FJ Maier introduced the method of treating fluorine in water using natural zeolite or synthetic zeolite as a filter material in U.S. Patent No. 2,210,965, Aug.13, 1940; however, The mechanism is not clarified the possibility of complete zeolite anion exchange and the relationship between aluminum ion and zeolite structure when regenerated with soluble aluminum salt. Therefore F.J.Maier that the law is very inefficient, to be rejected. When R.L. Morris et al. Used civil hydraulic softening equipment using zeolite as an exchange agent, it was found that the adsorption of perfluoride in the ion exchange process and