Next Article in Journal
The Use of Polymer and Surfactants for the Microencapsulation and Emulsion Stabilization
Previous Article in Journal
Surface Tension Measurements with the Drop Profile Analysis Tensiometry—Consideration of the Surfactant Mass Balance in a Single Drop
Article Menu

Export Article

Open AccessArticle
Colloids Interfaces 2017, 1(1), 2; https://doi.org/10.3390/colloids1010002

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.
Received: 21 September 2017 / Revised: 11 October 2017 / Accepted: 11 October 2017 / Published: 14 October 2017
Full-Text   |   PDF [5332 KB, uploaded 13 December 2017]   |  

Abstract

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
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

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.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Colloids Interfaces EISSN 2504-5377 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top