Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 153, Issue 1-2, Pages 582-587Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2007.09.002
Keywords
photo-Fenton; photo-oxidation; chlorinated compounds
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In the present work, the photochemical oxidation of 2-chlorophenol aqueous solutions in a batch recycle photochemical reactor using ultraviolet irradiation and hydrogen peroxide was studied. Specifically, the effect of hydrogen peroxide initial concentration (0-10316 mg L-1) and 2-chlorophenol initial concentration (150-3000 mg L-1) was examined. The process was attended via total organic carbon (TOC), 2-chlorophenol, chloride ion, acetic acid, formic acid and pH measurements. The conversion of 2-chlorophenol observed was always much higher than the corresponding total organic carbon removal, whereas the increase in hydrogen peroxide amount in the solution led to higher values of 2-chlorophenol conversion and total organic carbon removal. Finally, the photo-Fenton reaction was applied to the oxidation of 2-chlorophenol, leading to a higher degree of mineralization of the parent compound. (c) 2007 Elsevier B.V. All rights reserved.
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