Optimal conditions for preparation of banana peels, sugarcane bagasse and watermelon rind in removing copper from water

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Journal Article
Bioresource Technology, 2012, 119 pp. 349 - 354
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In this study, three agro-waste materials were used as biosorbents for removal of copper (Cu) from water. This work aims to optimise conditions for preparation of these materials to obtain maximum Cu adsorption capacity. The optimal conditions were determined in terms of Cu removal efficiency and/or energy consumption. The results indicate that banana peels dried at 120 °C for 2. h and ground into powder form led to a better performance in terms of both copper removal efficiency and energy consumption. For sugarcane bagasse and watermelon rind, 120 °C was the suitable drying temperature. However, the best drying time was 1. h for sugarcane bagasse and 3. h for watermelon rind. The powder form with size of <150 μm was optimal for all biosorbents in terms of removal efficiency and equilibration time. The findings are beneficial to the application of these agro-waste materials for Cu removal from water and wastewater treatment. © 2012.
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