REMOVAL OF METAL-IONS FROM AQUEOUS-SOLUTION BY ACTIVATED CARBONS OBTAINED FROM DIFFERENT RAW-MATERIALS

被引：94

作者：

BUDINOVA, TK

GERGOVA, KM

PETROV, NV

MINKOVA, VN

机构：

[1] Institute of Organic Chemistry, Bulgarian Academy of Sciences, Sofia, 1113

[2] University Park, Pennsylvania, 16802

来源：

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 1994年 / 60卷 / 02期

关键词：

ACTIVATED CARBON; METAL ION ADSORPTION; SURFACE OXIDES; WATER PURIFICATION;

D O I：

10.1002/jctb.280600210

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The adsorption of Pb2+, Cu2+, Zn2+ and Cd2+ from aqueous solution at 293 K by activated carbons obtained from different raw materials was studied. These carbons were prepared by water vapour pyrolysis of the raw materials-apricot stones, coconut shells and lignite coal. The influence of the solution pH on the adsorption processes has been studied. The presence of other metal ions in the solution decreases the adsorption of each of the ions. The selective adsorption of the metal ions is observed but the ones preferentially adsorbed do not completely prevent the adsorption of other ions. The chemical nature of the carbon surface and metal ions have great significance for the adsorption process.

引用

页码：177 / 182

页数：6

共 12 条

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