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Open AccessArticle

Decontamination of Uranium-Polluted Groundwater by Chemically-Enhanced, Sawdust-Activated Carbon

1
Nuclear Materials Authority, P.O. Box 530, El Maadi, Cairo 11936, Egypt
2
Egyptian Atomic Energy Authority, Cairo 11787, Egypt
3
Chemistry Department, Faculty of Science, Al-Azhar University, Cairo 11651, Egypt
*
Author to whom correspondence should be addressed.
Colloids Interfaces 2017, 1(1), 2; https://doi.org/10.3390/colloids1010002
Received: 21 September 2017 / Revised: 11 October 2017 / Accepted: 11 October 2017 / Published: 14 October 2017
The preparation of highly efficient and low-cost activated carbon from sawdust was achieved for the treatment of uranium-contaminated groundwater. The adsorption properties of the synthesized activated carbon, as well as their ability to be reused, were assessed. The obtained results demonstrated that sawdust activated carbon (SDAC) and its amine form (SDACA) had high affinity towards uranium ions at pH values of 4.5 and 5 for SDAC and SDACA, respectively. The experimental results showed that the maximum adsorption capacity of uranium was 57.34 and 76.7 mg/g for SDAC and SDACA, respectively. A maximum removal efficiency of 89.72% by SDAC and 99.55% by SDACA were obtained at a solid/liquid ratio of 8 mg/mL. The removal mechanism of uranium by SDAC and SDACA was suggested due to interaction with the amine and carboxylic groups. The validation of the method was verified through uranium separation from synthetic as well as from groundwater collected from water wells in the Wadi Naseib area, Southwestern Sinai, Egypt. View Full-Text
Keywords: sawdust; activated carbon; uranium; groundwater; adsorption sawdust; activated carbon; uranium; groundwater; adsorption
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MDPI and ACS Style

El-Magied, M.O.A.; Mohammaden, T.F.; El-Aassy, I.K.; Gad, H.M.H.; Hassan, A.M.; Mahmoud, M.A. Decontamination of Uranium-Polluted Groundwater by Chemically-Enhanced, Sawdust-Activated Carbon. Colloids Interfaces 2017, 1, 2.

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