Solid olive waste in environmental cleanup: oil recovery and carbon production for water purification |
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Authors: | El-Hamouz Amer Hilal Hikmat S Nassar Nashaat Mardawi Zahi |
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Institution: | Department of Chemical Engineering, An-Najah National University, P.O. Box 7, Nablus, Palestine. |
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Abstract: | A potentially-economic three-fold strategy, to use solid olive wastes in water purification, is presented. Firstly, oil remaining in solid waste (higher than 5% of waste) was recovered by the Soxhlet extraction technique, which can be useful for the soap industry. Secondly, the remaining solid was processed to yield relatively high-surface area active carbon (AC). Thirdly, the resulting carbon was employed to reversibly adsorb chromate ions from water, aiming to establish a water purification process with reusable AC. The technique used here enabled oil recovery together with the production of a clean solid, suitable for making AC. This process also has the advantage of low production cost. |
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Keywords: | Active carbon Olive solid waste Adsorption Chromate |
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