Equilibrium and Kinetics Characteristics of Copper (II) Sorption onto Gyttja

被引：16

作者：

Dikici, Hueseyin ^{[1
]}

Saltali, Kadir ^{[1
]}

Bingolbali, Serap ^{[1
]}

机构：

[1] Kahramanmaras Sutcu Imam Univ, Dept Soil Sci, TR-46100 Kahramanmaras, Turkey

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2010年 / 84卷 / 01期

关键词：

Gyttja; Copper; Thermodynamics; Kinetics; DIVALENT METAL-IONS; AQUEOUS-SOLUTION; ADSORPTION; PEAT; REMOVAL; CU(II); PB(II); ZN; CD; SAWDUST;

D O I：

10.1007/s00128-009-9899-x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The sorption characteristics of gyttja to remove copper (Cu(2+)) ions from aqueous solutions were satisfactorily described with the Freundlich, Langmuir and Dubinin-Redushckevich (D-R) models. The sorption capacity (q (max)) of gyttja was 11.76 mg g(-1). The D-R model indicated that the sorption of Cu(2+) by gyttja was almost taken place by chemisorption. Thermodynamic parameters such as change in free energy (Delta G), enthalpy (Delta H), and entropy (Delta S) suggested that the adsorption process of Cu(2+) by gyttja was feasible, spontaneous and endothermic in nature. Kinetic examination of the equilibrium data showed that the sorption processes of Cu(2+) ions followed well pseudo-second-order kinetics model.

引用

页码：147 / 151

页数：5

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