Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate
Aims Municipal landfill leachate contains high concentrations of heavy metals, organics, ammonia. The efficeincy of electrochemically removal of heavy metals from landfill leachate was studied. Materials & Methods The leachate was obtained from Kahrizak landfill in south of Tehran. The exper...
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| Format: | Article |
| Language: | English |
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Kashan University of Medical Sciences
2016-08-01
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| Series: | International Archives of Health Sciences |
| Subjects: | |
| Online Access: | http://iahs.kaums.ac.ir/browse.php?a_id=26&sid=1&slc_lang=en |
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| author | Mostafaii Gh.1 PhD, Roozitalab N.1 MSc, Rabbani D.1 PhD, Moosavi Gh.* MSc, Iranshahi L.1 MSc |
| author_facet | Mostafaii Gh.1 PhD, Roozitalab N.1 MSc, Rabbani D.1 PhD, Moosavi Gh.* MSc, Iranshahi L.1 MSc |
| author_sort | Mostafaii Gh.1 PhD, |
| collection | DOAJ |
| description | Aims Municipal landfill leachate contains high concentrations of heavy metals, organics,
ammonia. The efficeincy of electrochemically removal of heavy metals from landfill leachate
was studied.
Materials & Methods The leachate was obtained from Kahrizak landfill in south of Tehran.
The experiments were carried out by batch process. The 2liter batch reactor was made
of glass. There were eight anodes and cathodes electrodes. The electrodes were placed
vertically parallel to each other and they were connected to a digital DC power supply. The pH
and conductivity were adjusted to a desirable value using NaOH or H2SO4, and NaCl. All the
runs were performed at constant temperature of 25°C. In each run, 1.5liter of the leachate
was placed into the electrolytic cell. Samples were extracted every 10min and then filtered
through a mixed cellulose acetate membrane (0.42μm). The amount of Lead, Zinc and Nickel
removal was measured at pH=7 and in current density of 0.5, 0.75, and 1A.
Findings When current density and time reaction increased, removal efficiency of heavy
metals such as Lead, Zinc and Nickel increased. At initial pH=7, density 1A and reaction time=
60min, Lead, Nickel and Zinc were removed up to 86, 93 and 95%, respectively.
Conclusion Electrochemical process can be proposed as a suitable technique to remove
heavy metal from landfill leachate. |
| first_indexed | 2024-03-11T20:39:59Z |
| format | Article |
| id | doaj.art-17f7b8caa64f41baae6172b762c670fc |
| institution | Directory Open Access Journal |
| issn | 2383-2568 |
| language | English |
| last_indexed | 2024-03-11T20:39:59Z |
| publishDate | 2016-08-01 |
| publisher | Kashan University of Medical Sciences |
| record_format | Article |
| series | International Archives of Health Sciences |
| spelling | doaj.art-17f7b8caa64f41baae6172b762c670fc2023-10-02T02:40:23ZengKashan University of Medical SciencesInternational Archives of Health Sciences2383-25682016-08-01113135Application of Electrochemical Process in Removal of Heavy Metals from Landfill LeachateMostafaii Gh.1 PhD,0Roozitalab N.1 MSc,1Rabbani D.1 PhD,2Moosavi Gh.* MSc,3Iranshahi L.1 MSc41“Social Determinants of Health Research Center” and “Environment Health Department, Public Health Faculty”, Kashan University of Medical Sciences, Kashan, Iran1“Social Determinants of Health Research Center” and “Environment Health Department, Public Health Faculty”, Kashan University of Medical Sciences, Kashan, Iran1“Social Determinants of Health Research Center” and “Environment Health Department, Public Health Faculty”, Kashan University of Medical Sciences, Kashan, Iran*“Social Determinants of Health Research Center” and “Environment Health Department, Public Health Faculty”, Kashan University of Medical Sciences, Kashan, Iran1“Social Determinants of Health Research Center” and “Environment Health Department, Public Health Faculty”, Kashan University of Medical Sciences, Kashan, IranAims Municipal landfill leachate contains high concentrations of heavy metals, organics, ammonia. The efficeincy of electrochemically removal of heavy metals from landfill leachate was studied. Materials & Methods The leachate was obtained from Kahrizak landfill in south of Tehran. The experiments were carried out by batch process. The 2liter batch reactor was made of glass. There were eight anodes and cathodes electrodes. The electrodes were placed vertically parallel to each other and they were connected to a digital DC power supply. The pH and conductivity were adjusted to a desirable value using NaOH or H2SO4, and NaCl. All the runs were performed at constant temperature of 25°C. In each run, 1.5liter of the leachate was placed into the electrolytic cell. Samples were extracted every 10min and then filtered through a mixed cellulose acetate membrane (0.42μm). The amount of Lead, Zinc and Nickel removal was measured at pH=7 and in current density of 0.5, 0.75, and 1A. Findings When current density and time reaction increased, removal efficiency of heavy metals such as Lead, Zinc and Nickel increased. At initial pH=7, density 1A and reaction time= 60min, Lead, Nickel and Zinc were removed up to 86, 93 and 95%, respectively. Conclusion Electrochemical process can be proposed as a suitable technique to remove heavy metal from landfill leachate.http://iahs.kaums.ac.ir/browse.php?a_id=26&sid=1&slc_lang=enElectrochemical Techniques; MetalsHeavy; Waste Disposal Facilities; . Electrodes; Water PollutantsChemical |
| spellingShingle | Mostafaii Gh.1 PhD, Roozitalab N.1 MSc, Rabbani D.1 PhD, Moosavi Gh.* MSc, Iranshahi L.1 MSc Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate International Archives of Health Sciences Electrochemical Techniques; Metals Heavy; Waste Disposal Facilities; . Electrodes; Water Pollutants Chemical |
| title | Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate |
| title_full | Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate |
| title_fullStr | Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate |
| title_full_unstemmed | Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate |
| title_short | Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate |
| title_sort | application of electrochemical process in removal of heavy metals from landfill leachate |
| topic | Electrochemical Techniques; Metals Heavy; Waste Disposal Facilities; . Electrodes; Water Pollutants Chemical |
| url | http://iahs.kaums.ac.ir/browse.php?a_id=26&sid=1&slc_lang=en |
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