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- Wednesday, May 17, 2006
- Solid olive waste in environmental cleanup: Oil recovery and carbon production for water purification
- Published at:Not Found
Journal of Environmental Management 84 (2007) 83–92
Amer El-Hamouza, Hikmat S. Hilalb*, Nashaat Nassara, Zahi Mardawia
aDepartment of Chemical Engineering, An-Najah National University, P.O. Box 7, Nablus, Palestine
bDepartment of Chemistry, An-Najah National University, P.O. Box 7, Nablus, Palestine
Received 3 September 2005; received in revised form 12 May 2006; accepted 17 May 2006
Available online 10 July 2006
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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