Extraction of heavy metals from contaminated soils using EDTA and HCl
Journal of Engineering
View Archive Info| Field | Value | |
| Title |
Extraction of heavy metals from contaminated soils using EDTA and HCl
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| Creator |
Gzar, Hatem Asel
Gatea, Israa Mohammed |
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| Description |
The present study examines the extraction of lead (Pb), cadmium (Cd) and nickel (Ni) from a contaminated soil by washing process. Ethylenediaminetetraacetic acid disodium salt (Na2EDTA) and hydrochloric acid (HCl) solution were used as extractants. Soil washing is one of the most suitable in-situ/ ex-situ remediation method in removing heavy metals. Soil was artificially contaminated with 500 mg/kg (Pb , Cd and Ni ). A set of batch experiments were carried out at different conditions of extractant concentration , contact time, pH and agitation speed. The results showed that the maximum removal efficiencies of (Cd, Pb and Ni ) were (97, 88 and 24 ) % respectively using ( 0.1 M) Na2EDTA. While the maximum removal efficiencies using (1M) HCl were (98, 94 and 55)% respectively. The experimental data of batch extraction were applied in four kinetic models; first order, parabolic diffusion, two constant and Elovich model. The parabolic diffusion was the most fitted to the experimental data. |
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| Publisher |
College of Engineering | University of Baghdad
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| Date |
2015-01-01
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| Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
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| Format |
application/vnd.openxmlformats-officedocument.wordprocessingml.document
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| Identifier |
http://joe.uobaghdad.edu.iq/index.php/main/article/view/475
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| Source |
مجلة الهندسة; مجلد 21 عدد 1 (2015): Journal of Engineering (Eng. J.); 45-61
Journal of Engineering; Vol 21 No 1 (2015): Journal of Engineering (Eng. J.); 45-61 2520-3339 1726-4073 |
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| Language |
eng
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| Relation |
http://joe.uobaghdad.edu.iq/index.php/main/article/view/475/409
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| Rights |
Copyright (c) 2015 Eng. J.
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