alexa Adsorption of heavy metals from water using banana and orange peels.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Annadural G, Juang RS, Lee DJ

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Abstract Liquid-phase adsorption removal of Cu2+, Co2+, Ni2+, Zn2+, and Pb2+ in the concentration range of 5-25 mg/L using low-cost banana and orange peel wastes was examined at 30 degrees C. Under comparable conditions, the amount of adsorption decreased in the order Pb2+ > Ni2+ > Zn2+ > Cu2+ > Co2+ for both adsorbents. The adsorption isotherms could be better described by the Freundlich equation. The amount of adsorption increased with increasing pH and reached a plateau at pH > 7, which was confirmed by the variations of zeta potentials. The application potential of such cellulose-based wastes for metal removal (up to 7.97 mg Pb2+ per gram of banana peel at pH 5.5) at trace levels appeared to be promising.
This article was published in Water Sci Technol and referenced in Journal of Bioremediation & Biodegradation

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