Removal of borate by coprecipitation with Mg/Al layered double hydroxide

被引：8
|
作者：
Kurashina, Masashi [1 ]
Inoue, Tatsuki [1 ]
Tajima, Chihiro [1 ]
Kanezaki, Eiji [1 ]
机构：
[1] Univ Tokushima, Fac Engn, Dept Chem Sci & Technol, Tokushima 7708506, Japan
来源：
MODERN PHYSICS LETTERS B | 2015年 / 29卷 / 6-7期
关键词：
Layered double hydroxide; removal of borate; coprecipitation; HYDROTALCITE-LIKE COMPOUNDS; BORON REMOVAL;
D O I：
10.1142/S021798491540031X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Borate has been used for various industrial products and excessive dose of boron is harmful to humans. We investigated the removal of borate by direct coprecipitation with Mg/Al layered double hydroxide. In this study, the maximum removal of boron was 90% when Mg 30 mmol and Al 15 mmol at pH = 10 were used for 498 mg/l as B. The boron adsorption isotherms could be fitted to Langmuir model. The calculated constant W-s, saturation limit of boron adsorption, is 25 +/- 2 mg/g and it is larger than that of ion exchange reaction (W-s = 15 +/- 1 mg/g).
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页数：5
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