Mercury removal from aqueous solutions by palm leaves adsorbent
Mercury is a carcinogenic and teratogenic compound that tends to accumulate in water solutions. In this research, the removal of mercury from an aqueous solution was evaluated by using palm leaves. Experiments were performed to study the adsorption efficiency, the effect of the adsorbent amount, the...
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| Format: | Article |
| Language: | English |
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Kurdistan University of Medical Sciences
2017-05-01
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| Series: | Journal of Advances in Environmental Health Research |
| Subjects: | |
| Online Access: | http://jaehr.muk.ac.ir/article_51939_2d7e03a2f584ac5bfcc22d7341c1561b.pdf |
| _version_ | 1819148845696679936 |
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| author | Mitra Mohammadi Khadije Shamsi Abdollah Dargahi Pegah Sekhavat |
| author_facet | Mitra Mohammadi Khadije Shamsi Abdollah Dargahi Pegah Sekhavat |
| author_sort | Mitra Mohammadi |
| collection | DOAJ |
| description | Mercury is a carcinogenic and teratogenic compound that tends to accumulate in water solutions. In this research, the removal of mercury from an aqueous solution was evaluated by using palm leaves. Experiments were performed to study the adsorption efficiency, the effect of the adsorbent amount, the balance time, the adsorbate concentration, and the pH on mercury removal. The experimental apparatus used was a batch stirred reactor (volume: 1m3). The study was conducted under almost isothermal conditions. The test results showed that the optimum adsorbate concentration was 2 g/l, the balance time was three hours, the optimum adsorbent concentration was 15 mg/l, and the pH was 6. The maximum efficiency obtained was 99.24%. The chemical compounds with the highest presence in the palm leaves were LoI (93.76%), and SiO2 (4.1%), whereas the compound with the lowest presence was Na2O (0.08%). The mercury removal efficiency increased with an increase in the adsorbent dose and the contact time, and reduced with an increase in the initial mercury concentration. The Freundlich model, using the variables provided in the study, predicted the change in the adsorption kinetics. |
| first_indexed | 2024-12-22T13:52:11Z |
| format | Article |
| id | doaj.art-93fe867aa8ee4f1f925cf4442855dbbb |
| institution | Directory Open Access Journal |
| issn | 2345-3990 2345-3990 |
| language | English |
| last_indexed | 2024-12-22T13:52:11Z |
| publishDate | 2017-05-01 |
| publisher | Kurdistan University of Medical Sciences |
| record_format | Article |
| series | Journal of Advances in Environmental Health Research |
| spelling | doaj.art-93fe867aa8ee4f1f925cf4442855dbbb2022-12-21T18:23:39ZengKurdistan University of Medical SciencesJournal of Advances in Environmental Health Research2345-39902345-39902017-05-015210110710.22102/jaehr.2017.89835.102651939Mercury removal from aqueous solutions by palm leaves adsorbentMitra Mohammadi0Khadije Shamsi1Abdollah Dargahi2Pegah Sekhavat3Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, IranDepartment of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, IranDepartment of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, IranDepartment of Environmental Health Engineering, School of Public Health, Kurdistan University of Medical Sciences, Kurdistan, IranMercury is a carcinogenic and teratogenic compound that tends to accumulate in water solutions. In this research, the removal of mercury from an aqueous solution was evaluated by using palm leaves. Experiments were performed to study the adsorption efficiency, the effect of the adsorbent amount, the balance time, the adsorbate concentration, and the pH on mercury removal. The experimental apparatus used was a batch stirred reactor (volume: 1m3). The study was conducted under almost isothermal conditions. The test results showed that the optimum adsorbate concentration was 2 g/l, the balance time was three hours, the optimum adsorbent concentration was 15 mg/l, and the pH was 6. The maximum efficiency obtained was 99.24%. The chemical compounds with the highest presence in the palm leaves were LoI (93.76%), and SiO2 (4.1%), whereas the compound with the lowest presence was Na2O (0.08%). The mercury removal efficiency increased with an increase in the adsorbent dose and the contact time, and reduced with an increase in the initial mercury concentration. The Freundlich model, using the variables provided in the study, predicted the change in the adsorption kinetics.http://jaehr.muk.ac.ir/article_51939_2d7e03a2f584ac5bfcc22d7341c1561b.pdfpalm leavesadsorptionmercuryisotherm |
| spellingShingle | Mitra Mohammadi Khadije Shamsi Abdollah Dargahi Pegah Sekhavat Mercury removal from aqueous solutions by palm leaves adsorbent Journal of Advances in Environmental Health Research palm leaves adsorption mercury isotherm |
| title | Mercury removal from aqueous solutions by palm leaves adsorbent |
| title_full | Mercury removal from aqueous solutions by palm leaves adsorbent |
| title_fullStr | Mercury removal from aqueous solutions by palm leaves adsorbent |
| title_full_unstemmed | Mercury removal from aqueous solutions by palm leaves adsorbent |
| title_short | Mercury removal from aqueous solutions by palm leaves adsorbent |
| title_sort | mercury removal from aqueous solutions by palm leaves adsorbent |
| topic | palm leaves adsorption mercury isotherm |
| url | http://jaehr.muk.ac.ir/article_51939_2d7e03a2f584ac5bfcc22d7341c1561b.pdf |
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