Mechanism and kinetic study for the degradation of lindane by photo-Fenton process

Because application of classical treatment methods cannot allow an easily Lindane (gamma 1α,2α,3β,4α,5α,6β-hexachlorocyclohexane) degradation, development of more powerful water treatment techniques, like advanced oxidation processes (AOPs), was necessary. The degradation of lindane (γ-HCH) has been...

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Bibliographic Details
Published in:Journal of industrial and engineering chemistry (Seoul, Korea) 2013, 19(1), , pp.305-309
Main Authors: Nitoi, Ines, Oncescu, Tatiana, Oancea, Petruta
Format: Article
Language:English
Subjects:
Advanced oxidation processes
Carbon
Degradation
Hexanes
Irradiation
Kinetic model
Lindane
Mineralization
Pathways
Photo-Fenton
Reaction kinetics
Water treatment
화학공학
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Summary:Because application of classical treatment methods cannot allow an easily Lindane (gamma 1α,2α,3β,4α,5α,6β-hexachlorocyclohexane) degradation, development of more powerful water treatment techniques, like advanced oxidation processes (AOPs), was necessary. The degradation of lindane (γ-HCH) has been studied using the photo-Fenton reaction. The degradation kinetics under irradiation was optimized in respect to H2O2 concentration and Fe2+ concentration at a constant lindane concentration. The degradation rate follows pseudo-first order kinetics with respect to lindane and organic clorine mineralization. Application of photo-Fenton system also assures total organic carbon removal with 95% efficiency at 2h irradiation. The possible pathways of lindane photodegradation is also proposed.
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2012.08.016