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Title

Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate

Year: 1392
COI: JR_IAHS-1-1_007
Language: EnglishView: 328
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Authors

Gh Mostafaii - Social Determinants of Health Research Center and Environment Health Department, Public Health Faculty, Kashan University of Medical Sciences, Kashan, Iran
N Roozitalab - Social Determinants of Health Research Center and Environment Health Department, Public Health Faculty, Kashan University of Medical Sciences, Kashan, Iran
D Rabbani - Social Determinants of Health Research Center and Environment Health Department, Public Health Faculty, Kashan University of Medical Sciences, Kashan, Iran
Gh Moosavi - Social Determinants of Health Research Center and Environment Health Department, Public Health Faculty, Kashan University of Medical Sciences, Kashan, Iran

Abstract:

Aims Municipal landfill leachate contains high concentrations of heavy metals, organics,ammonia. The efficeincy of electrochemically removal of heavy metals from landfill leachatewas 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 madeof glass. There were eight anodes and cathodes electrodes. The electrodes were placedvertically parallel to each other and they were connected to a digital DC power supply. The pHand conductivity were adjusted to a desirable value using NaOH or H2SO4, and NaCl. All theruns were performed at constant temperature of 25°C. In each run, 1.5liter of the leachatewas placed into the electrolytic cell. Samples were extracted every 10min and then filteredthrough a mixed cellulose acetate membrane (0.42μm). The amount of Lead, Zinc and Nickelremoval 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 heavymetals 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 removeheavy metal from landfill leachate.

Keywords:

Electrochemical Techniques, Metals, Heavy, Waste Disposal Facilities, Electrodes, Water Pollutants, Chemical

Paper COI Code

This Paper COI Code is JR_IAHS-1-1_007. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/405626/

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Mostafaii, Gh and Roozitalab, N and Rabbani, D and Moosavi, Gh,1392,Application of Electrochemical Process in Removal of Heavy Metals from Landfill Leachate,,,,,https://civilica.com/doc/405626

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Type of center: علوم پزشکی
Paper count: 1,375
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