LEAD (II) REMOVAL FROM AQUEOUS SOLUTIONS BY ADSORPTION ONTO CHITOSAN

被引：0

作者：

Asandei, Doina ^{[1
]}

Bulgariu, Laura ^{[1
]}

Bobu, Elena ^{[1
]}

机构：

[1] Gheorghe Asachi Tech Univ, Fac Chem Engn & Environm Protect, Iasi 700050, Romania

来源：

CELLULOSE CHEMISTRY AND TECHNOLOGY | 2009年 / 43卷 / 4-6期

关键词：

lead (II); chitosan; adsorption; removal yield; isotherms; HEAVY-METALS; WASTE-WATER; SORPTION; EQUILIBRIUM; BIOSORPTION; SORBENTS; IONS; PEAT; BIOSORBENTS; ADSORBENTS;

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The adsorption behaviour of lead(II) ions from aqueous solutions onto chitosan was investigated. Adsorption experiments were performed in a batch system, at room temperature (20 +/- 0.5 degrees C) by changing the various experimental parameters initial solution pH, chitosan dosage, initial lead (II) concentration and contact time. The results have shown that the effectiveness of lead ions removal is mainly dependent on the initial concentration of lead ions to chitosan dosage ratio, which should be optimized by a compromise between the removal yiedl and cost-effectiveness of the process. The adsorption equilibrium data were analyzed by the Freundlich and Langmuir isotherm models, whose application for the mathematical description of lead (II) adsorption on chitosan indicated that the adsorption equilibrium is well-fitted to the Langmuir isotherm.

引用

页码：211 / 216

页数：6

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