Removal of Pb(II) and Cd(II) from water by adsorption on peels of banana

The adsorption of lead(II) and cadmium(II) on peels of banana has been studied in batch mode using flame atomic absorption spectroscopy for metal estimation. Concerned parameters like adsorbent dose, pH, contact time and agitation speed were investigated. Langmuir, Freundlich and Temkin isotherms we...

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Veröffentlicht in:	Bioresource technology 2010-03, Vol.101 (6), p.1752-1755
Hauptverfasser:	Anwar, Jamil, Shafique, Umer, Waheed-uz-Zaman, Salman, Muhammad, Dar, Amara, Anwar, Shafique
Format:	Artikel
Sprache:	eng
Schlagworte:	adsorbents Adsorption bananas Biological and medical sciences Biotechnology - methods cadmium Cadmium - chemistry Dose-Response Relationship, Drug Environmental Restoration and Remediation - methods Food industries food wastes Freundlich isotherm Fundamental and applied biological sciences. Psychology Hazardous Substances Hydrogen-Ion Concentration industrial effluents Langmuir isotherm lead Lead - chemistry metal ions Musa Musa - metabolism Musaceae peels pollutants Spectrophotometry, Atomic - methods Temkin isotherm Temperature Time Factors Use and upgrading of agricultural and food by-products. Biotechnology Utilization of banana peels wastewater treatment Water Pollutants, Chemical - analysis Water Pollutants, Chemical - isolation & purification water pollution Water Purification - methods
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Zusammenfassung:	The adsorption of lead(II) and cadmium(II) on peels of banana has been studied in batch mode using flame atomic absorption spectroscopy for metal estimation. Concerned parameters like adsorbent dose, pH, contact time and agitation speed were investigated. Langmuir, Freundlich and Temkin isotherms were employed to describe adsorption equilibrium. The maximum amounts of cadmium(II) and lead(II) adsorbed ( qm), as evaluated by Langmuir isotherm, were 5.71 mg and 2.18 mg per gram of powder of banana peels, respectively. Study concluded that banana peels, a waste material, have good potential as an adsorbent to remove toxic metals like lead and cadmium from water.
ISSN:	0960-8524 1873-2976
DOI:	10.1016/j.biortech.2009.10.021