https://scholars.lib.ntu.edu.tw/handle/123456789/407927
標題: | Adsorption of heavy metals from water using banana and orange peels | 作者: | Annadurai G. Juang R.S. Lee D.J. |
關鍵字: | Adsorption removal;Fruit peels;Heavy metals;Zeta potentials | 公開日期: | 2003 | 卷: | 47 | 期: | 1 | 起(迄)頁: | 185-190 | 來源出版物: | Water Science and Technology | 摘要: | Liquid-phase adsorption removal of Cu2+, Co2+, Ni2+, and Pb2+ in the concentration range of 5-25 mg/L using low-cost banana and orange peel wastes was examined at 30 ¢XC. 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. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407927 | ISSN: | 02731223 |
顯示於: | 化學工程學系 |
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