%0 Journal Article
%T Removal of Fe3+ from Aqueous Solution by Natural Apatite
%A Gongming Qian
%A Maolin Li
%A Fei Wang
%A Xinggang Liu
%J Journal of Surface Engineered Materials and Advanced Technology
%P 14-20
%@ 2161-489X
%D 2014
%I Scientific Research Publishing
%R 10.4236/jsemat.2014.41003
%X <p class=\"MsoNormal\">
	<span lang=\"EN-GB\"><span style=\"font-family:Verdana;\">The
feasibility of natural apatite for adsorptive removal of Fe</span><sup><span style=\"font-family:Verdana;\">3+</span></sup><span style=\"font-family:Verdana;\"> from
aqueous solution was investigated. Batch experiments were performed as function
of process parameters such as contact time, initial concentration of Fe</span><sup><span style=\"font-family:Verdana;\">3+</span></sup><span style=\"font-family:Verdana;\">,
temperature, apatite dosage and pH. The natural apatite exhibited a high
performance for the removal of Fe</span><sup><span style=\"font-family:Verdana;\">3+</span></sup><span style=\"font-family:Verdana;\"> from aqueous solution. The pH
value clearly affects the removal mechanism of Fe</span><sup><span style=\"font-family:Verdana;\">3+</span></sup><span style=\"font-family:Verdana;\"> by natural
apatite. At low pH value, dissolution/precipitation is the main effect. The
effect of hydrolyzation increased with the pH value. After the pH value above
5.0, hydrolyzation is the main effect. The adsorption isotherms demonstrated that
the adsorbent behaved in a favorable manner for Fe</span><sup><span style=\"font-family:Verdana;\">3+</span></sup><span style=\"font-family:Verdana;\"> adsorption. The
experimental data were well fitted with Langmuir isotherm.</span></span> 
</p>
%K Adsorbent
%K Iron Removal
%K Apatite
%K Adsorption Isotherm
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=42050