Degradation of Toluene by Liquid Ferrate(VI) and Solid Ferrate(VI) in Aqueous Phase
Publication: Journal of Environmental Engineering
Volume 144, Issue 9
Abstract
Ferrate(VI) () is one of the innovative oxidation processes that has a strong oxidizing power. In this study, degradation of toluene has been examined using liquid sodium ferrate(VI) and solid potassium ferrate(VI). The effects of pH, molar ratio, and temperature on toluene removal by both ferrates(VI) were investigated. The highest toluene removal efficiency was achieved at neutral pH condition () after a reaction period of 20 min. For the effect of molar ratio, the degradation efficiency increased as the molar ratio increased. The highest toluene degradation was achieved at molar ratio of 4.23:1 by both ferrates(VI). The optimal temperature was 45°C with value of and activation energy of for liquid ferrate(VI), and value of and activation energy of for solid ferrate(VI). The intermediate products such as heptanal, 3-methylbutanal, 2-methylhexane, 2-methylbutan-1-ol, 1-chlorobutane, 4-chlorobutane-1-ol, and 1-chloro-2-methylpropane were identified and the possible degradation pathways have been proposed.
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Acknowledgments
The authors gratefully acknowledge the financial support from the BK21 plus MADEC Human Resource Development Group.
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Published In
Journal of Environmental Engineering
Volume 144 • Issue 9 • September 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Dec 29, 2017
Accepted: Apr 4, 2018
Published online: Jul 11, 2018
Published in print: Sep 1, 2018
Discussion open until: Dec 11, 2018
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