Research Article | OPEN ACCESS
Utilization of Iraqi Rice Husk in the Removal of Heavy Metals from Wastewater
Mohammed Nsaif Abbas and Firas Saeed Abbas
Environmental Engineering Department, College of Engineering, The University of Mustansiriyah, Baghdad, Iraq
Research Journal of Environmental and Earth Sciences 2013 7:370-380
Received: April 20, 2013 | Accepted: May 03, 2013 | Published: July 20, 2013
Abstract
This study deals with the potential of Iraqi Rice Husk (IRH) for the removal of nine heavy metal pollutants which are $Al, As, Cd, Cr, Cu, Fe, Ni, Pb$ and $Zn$ ions from industrial wastewater using different design parameters by the adsorption process. Samples were taken of the IRH remaining after being used for the removal of the nine metal ions above from aqueous solutions using different methods. One of these methods was the preparation of a promoted type Y-zeolite catalyst which was compared with normally type Y-zeolite catalyst prepared from IRH alone and tested in the process of n-heptane isomerization under different temperatures. Another method involved the study of IRH as a rodenticide directly without any pre treatment. The results show that the promoted type Y-zeolite catalyst by $Cd^{+2}, Cr^{+6}, Cu^{+2}, Fe^{+3}, Ni^{+2}$ and $Zn{+2}$ ions gives a higher conversion and better selectivity of n-heptane isomerization than the normal type Y-zeolite catalyst and the IRH which had previously adsorbed $Al^{+3}, As^{+5}, Zn^{+2}$ and $Pb^{+2}$ from an aqueous solution and also showed good behavior as a rodenticide.
Keywords:
Adsorption, catalyst, heavy metal, residue, rice husk, wastewater, zeolite,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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