期刊名称：Pakistan Journal of Analytical & Environmental Chemistry
印刷版ISSN：1996-918X
电子版ISSN：2221-5255
出版年度：2008
卷号：9
期号：1
页码：1-6
语种：English
出版社：National Centre of Excellence in Analytical Chemsitry
摘要：Banana peel,a common fruit waste has been investigated to remove and preconcentrate Cr(III) from industrial wastewater. It was characterized by FT-IR spectroscopy. The parameters pH,contact time,initial metal ion concentration and temperature were investigated and the maximum sorption was found to be 95%. The binding of metal ions was found to be pH dependent with the optimal sorption occurring at pH 4. The retained species were eluted using 5mL of 2 M HNO3. The mechanism for the binding of Cr(III) on the banana peel surface was also studied in detail. The Langmuir and Dubinin-Radushkevich (D-R) isotherms were used to describe the partitioning behavior for the system at different temperatures. Kinetic and thermodynamic measurements of the banana peel for chromium ions were also studied. The method was applied for the removal and preconcentration of Cr(III) from industrial wastewater..
