Evaluating the effectiveness of a hybrid sorbent resin in removing fluoride from water

被引:105
作者
Boldaji, M. Rahmani [1 ]
Mahvi, A. H. [1 ,2 ]
Dobaradaran, S. [1 ,3 ]
Hosseini, S. S. [1 ]
机构
[1] Univ Tehran Med Sci, Sch Publ Hlth, Tehran, Iran
[2] Univ Tehran Med Sci, Environm Res Ctr, Tehran, Iran
[3] Bushehr Univ Med Sci, Bushehr, Iran
关键词
Fluoride removal; Functional groups; Hybrid resin; Goethite; Langmuir model; AQUEOUS-SOLUTION; ADSORPTION; GROUNDWATER; DASHTESTAN; KINETICS;
D O I
10.1007/BF03326103
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In some regions of the world, the concentration of fluoride in groundwater is high. To reduce the amount of fluoride to acceptable drinking water standard, it is highly recommended to treat the water. Fluoride adsorption in aqueous solution by a hybrid resin was studied in this research because of its functional groups likeness with goethite. Kinetic data showed that F adsorption was rapid in the beginning and maximum uptake occurred in within 10 min and equilibrium reached within 100 min. The experimental results showed that fluoride adsorption was influenced by pH of solution and optimum operating pH was in the range of 3 to 5.5. Langmuir model was applicable to the present study and F ions were exchanged with hydroxide ions in nano-scaled structure on the surface of sorbent. This adsorbent with 61% efficiency is suitable for the regions where F concentration is less than 4 mg/L.
引用
收藏
页码:629 / 632
页数:4
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