Potato peels as solid waste for the removal of heavy metal copper(II) from waste water/industrial effluent

被引：223

作者：

Aman, Tehseen ^{[2
]}

Kazi, Asrar Ahmad ^{[1
]}

Sabri, Muhammad Usman ^{[1
]}

Bano, Qudsia ^{[2
]}

机构：

[1] Pakistan Council Sci & Ind Res Labs Complex, Appl Chem Res Ctr, Lahore 54600, Pakistan

[2] Lahore Coll Women Univ, Dept Chem, Lahore, Pakistan

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2008年 / 63卷 / 01期

关键词：

copper; potato peels; adsorption; wastewater; kinetics;

D O I：

10.1016/j.colsurfb.2007.11.013

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

A new sorbent potato peels, which are normally discarded as solid waste for removing toxic metal ion Cu(II) from water/industrial waste water have been studied. Potato peels charcoal (PPQ was investigated as an adsorbent of Cu(II) from aqueous solutions. Kinetic and isotherm studies were carried out by studying the effects of various parameters such as temperature, pH and solid liquid ratios. The optimum pH value for Cu(II) adsorption onto potato peels charcoal (PPQ was found to be 6.0. The thermodynamic parameters such as standard Gibb's free energy (Delta G degrees), standard enthalpy (Delta H degrees) and standard entropy (Delta S degrees) were evaluated by applying the Van't Hoff equation. The thermodynamics of Cu(II) adsorption onto PPC indicates its spontaneous and exothermic nature. The equilibrium data at different temperatures were analyzed by Langmuir and Freundlich isotherms.(c) 2008 Elsevier B.V. All rights reserved.

引用

页码：116 / 121

页数：6

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