Removal of Cr(VI) from aqueous solutions by calcined Zn/Al- and Mg/Fe-hydrotalcites

被引：6
作者：
Pshinko, G. N. [1 ]
Puzyrnaya, L. N. [1 ]
Yatsyk, B. P. [1 ]
Kosorukov, A. A. [1 ]
Goncharuk, V. V. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Dumanskii Inst Colloid & Water Chem, Kiev, Ukraine
来源：
JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY | 2014年 / 36卷 / 06期
关键词：
calcined hydrotalcite; water treatment; sorption; Cr(VI); LAYERED DOUBLE HYDROXIDES; CHROMIUM(VI); ADSORPTION; SORPTION;
D O I：
10.3103/S1063455X14060010
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The paper has investigated sorption of Cr(VI) from aqueous solutions by calcined forms of Zn/Al- and Mg/Fe-hydrotalcites. We have determined the impact of sulfate-, hydrocarbonate- and nitrate-ions on the degree of removal of Cr(VI) from aqueous solutions. The most effective removal of chromate-ions from aqueous solution by calcined forms of hydrotalcites is observed in an acid and weakly acid region of the pH: at an increase of the pH from 4 to 8 the adsorption values decrease by similar to 6-7%.
引用
收藏
页码：257 / 264
页数：8
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