Removal of fluoride ions from drinking water and fluoride solutions by aluminum modified iron oxides in a column system

被引：47
|
作者：
Garcia-Sanchez, J. J. [1 ,3 ]
Solache-Rios, M. [1 ]
Martinez-Miranda, V. [2 ]
Solis Morelos, C. [2 ]
机构：
[1] Inst Nacl Invest Nucl, Depto Quim, Mexico City 11801, DF, Mexico
[2] Univ Autonoma Estado Mexico, Fac Ingn, Ctr Interamericano Recursos Agua, Toluca, Estado De Mexic, Mexico
[3] Univ Autonoma Estado Mexico, Fac Quim, Toluca 50000, Estado De Mexic, Mexico
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2013年 / 407卷
关键词：
Fluoride; Adsorption; Column system; Iron oxides; Drinking water; FIXED-BED COLUMN; COATED CEMENT IOCC; CORROSION PRODUCTS; ACTIVATED-CARBON; ADSORPTION; DEFLUORIDATION; BREAKTHROUGH; ADSORBENT; BEHAVIOR; LEAD(II);
D O I：
10.1016/j.jcis.2013.06.031
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The purpose of this work was to evaluate the potential of aluminum modified iron oxides, in a continuous flow for removal of fluoride ions from aqueous solutions and drinking water. The breakthrough curves obtained for fluoride ions adsorption from aqueous solutions and drinking water were fitted to Thomas, Bohart-Adams, and bed depth service time model (BDST). Adsorption capacities at the breakthroughs, Thomas model constant, kinetic constant and the saturation concentration were determined. The results show that in general, the adsorption efficiency decreases as the bed depth increases, and this behavior shows that the adsorption is controlled by the mass transport resistance. The adsorption capacity for fluoride ions by CP-Al is higher for fluoride aqueous solutions than drinking water. (c) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码：410 / 415
页数：6
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