BATCH NICKEL REMOVAL FROM AQUEOUS-SOLUTION BY SPHAGNUM MOSS PEAT

被引：340

作者：

HO, YS

WASE, DAJ

FORSTER, CF

机构：

[1] UNIV BIRMINGHAM,SCH CHEM ENGN,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

[2] UNIV BIRMINGHAM,SCH CIVIL ENGN,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND

来源：

WATER RESEARCH | 1995年 / 29卷 / 05期

关键词：

PEAT; NICKEL; ADSORPTION; LANGMUIR AND FREUNDLICH;

D O I：

10.1016/0043-1354(94)00236-Z

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The batch adsorption of Ni(II) onto sphagnum moss peat has been studied. The reaction was pH dependent, the optimum range being 4.0-7.0. Langmuir and Freundlich isotherms, established for various initial nickel concentrations and for a range of pH values, were used to obtain a single relationship between initial metal concentration, metal removal, and initial pH. The latter was found to control efficiency of nickel removal. Kinetic data suggested involvement of a chemical rate-limiting step, and a predictive relationship was derived relating nickel removal to peat dose. In comparison with other metals, nickel removal is poor, and possible reasons are discussed.

引用

页码：1327 / 1332

页数：6

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