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).

引用

页数：5

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