| Title | Removal of fluoride ions from aqueous solution using modified attapulgite as adsorbent. | | Author(s) | Zhang J, Xie S, Ho YS | | Institution | State Key Joint Laboratory of Environmental Simulation and Pollution Control, Department of Environmental Sciences, College of Environmental Science and Engineering, Peking University, Beijing 100871, People's Republic of China. | | Source | J Hazard Mater 2008 Oct 2. | | Abstract | Adsorption of fluoride ions from water using modified attapulgite with magnesium and aluminum salts was conducted by batch experiments. The effects of temperatures and mass ratios of attapulgite, magnesium and aluminum salts were investigated. Linear and non-linear methods were applied for fitting the adsorption data with Langmuir, Freundlich, and Redlich-Peterson isotherms. Modified attapulgite with a mass ratio attapulgite:MgCl(2).6H(2)O:AlCl(3).2H(2)O=2:1:2 had higher fluoride adsorption capacity. In addition, the fluoride adsorption using the modified attapulgite included an anion exchange process. | | Language | ENG | | Pub Type(s) | JOURNAL ARTICLE
| | PubMed ID | 19013016 |
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