从水溶液中吸附氟化物的综述
A Review on Adsorption of Fluoride from Aqueous Solution.
作者信息
Habuda-Stanić Mirna, Ravančić Maja Ergović, Flanagan Andrew
机构信息
Department of Chemistry and Ecology, Faculty of Food Technology, Josip Juraj Strossmayer University of Osijek, Franje Kuhača 20, HR-31000 Osijek, Croatia.
Department of Food Technology, University of Applied Sciences in Požega, Vukovarska 17, HR-34000 Požega, Croatia.
出版信息
Materials (Basel). 2014 Sep 5;7(9):6317-6366. doi: 10.3390/ma7096317.
Fluoride is one of the anionic contaminants which is found in excess in surface or groundwater because of geochemical reactions or anthropogenic activities such as the disposal of industrial wastewaters. Among various methods used for defluoridation of water such as coagulation, precipitation, membrane processes, electrolytic treatment, ion-exchange, the adsorption process is widely used. It offers satisfactory results and seems to be a more attractive method for the removal of fluoride in terms of cost, simplicity of design and operation. Various conventional and non-conventional adsorbents have been assessed for the removal of fluoride from water. In this review, a list of various adsorbents (oxides and hydroxides, biosorbents, geomaterials, carbonaceous materials and industrial products and by-products) and its modifications from literature are surveyed and their adsorption capacities under various conditions are compared. The effect of other impurities on fluoride removal has also been discussed. This survey showed that various adsorbents, especially binary and trimetal oxides and hydroxides, have good potential for the fluoride removal from aquatic environments.
氟化物是阴离子污染物之一，由于地球化学反应或人为活动（如工业废水处理），在地表水或地下水中过量存在。在用于水脱氟的各种方法中，如混凝、沉淀、膜工艺、电解处理、离子交换，吸附法被广泛应用。它能提供令人满意的结果，并且在成本、设计和操作的简易性方面，似乎是一种更具吸引力的除氟方法。人们已评估了各种传统和非传统吸附剂用于从水中去除氟化物。在本综述中，对文献中各种吸附剂（氧化物和氢氧化物、生物吸附剂、地质材料、碳质材料以及工业产品和副产品）及其改性进行了调查，并比较了它们在各种条件下的吸附容量。还讨论了其他杂质对氟化物去除的影响。这项调查表明，各种吸附剂，尤其是二元和三元金属氧化物及氢氧化物，在从水生环境中去除氟化物方面具有良好的潜力。
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