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Evaluation of‏ ‏electro coagulation‏ ‏process‏ ‏for the removal of‏ ‏sulfate‏ ‏and sulfite ‎‏ ‏Ions‏ ‏from aqueous

AUTHORS

avatar Mohammad Soltanian 1 , avatar Hosna Janjani 1 , * , avatar Sepideh Soltanian 2 , avatar Mostafa Janjani 1

1 Department of Environmental ‎Health Engineering, School of ‎Public Health, Kermanshah ‎University of Medical Sciences‎, Iran

2 Msc of chemistry,School of Public ‎Health, Kermanshah University of ‎Medical Sciences‎, Iran

How to Cite: Soltanian M , Janjani H , Soltanian S , Janjani M . Evaluation of‏ ‏electro coagulation‏ ‏process‏ ‏for the removal of‏ ‏sulfate‏ ‏and sulfite ‎‏ ‏Ions‏ ‏from aqueous. J Clin Res Paramed Sci. 2016;4(4):e82073.

ARTICLE INFORMATION

Journal of Clinical Research in Paramedical Sciences: 4 (4); e82073
Published Online: January 07, 2016
Article Type: Research Article
Received: June 09, 2015
Accepted: November 12, 2015
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Abstract

Background: Sulfate is one of the major ions in natural waters and wastewaters. The presence of sulfite is important in terms of that is converted into sulfate and sulfide in environment. Because of the high solubility and stability of these ions and consequently their health problems, removal of them from aqueous solutions is a sophisticated issue. This study was conducted aiming to evaluating the impact of electro coagulation process in the removal of highly concentrated sulfate and sulfite ions from aqueous.
Methods: This experimental study
was carried out on laboratory scale using a glass tank with the volume of 500 ml and 2 aluminum electrodes. Then, the synthesized samples containing concentrations of 500 and 1,000 and 1,500 ppm sulfate and sulfite were transferred to a reservoir and the removal of ions in the retention time intervals of, 30, 60 and 90 min and voltages of 10, 20 and 30 volts were examined.
Results: The most sulfite removal rate was 80 percent and voltage 30 and retention time of 90 minutes with concentration of 1000 mg/l.  And the most sulfate removal rate was 72 percent and voltage10 and retention time of 90 min with concentration of 1500 mg/l.
Conclusions: The results show that the electrocoagulation technology can also be used in high concentrations by adjusting the suitable retention time, initial concentration and voltage.

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© 2016, Journal of Clinical Research in Paramedical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
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