Adsorption of heavy metals from water using banana and orange peels-Reference-Cited by-同舟云学术

Adsorption of heavy metals from water using banana and orange peels

Published:2003-01-01 Issue:1 Volume:47 Page:185-190
ISSN:0273-1223
Container-title:Water Science and Technology
language:en
Short-container-title:

Author:

Annadurai G.¹,Juang R.S.²,Lee D.J.¹

Affiliation:

1. Department of Chemical Engineering, National Taiwan University, Taipei 106, Chinese Taiwan

2. Department of Chemical Engineering, Yuan Ze University, Chung-Li 320, Chinese Taiwan

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 oC. 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.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

Link

http://iwaponline.com/wst/article-pdf/47/1/185/426540/185.pdf

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