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Sequential helio-photo-Fenton and sonication processes for the treatment of bisphenol A

Paper ID Volume ID Publish Year Pages File Format Full-Text
29079 44118 2008 7 PDF Available
Title
Sequential helio-photo-Fenton and sonication processes for the treatment of bisphenol A
Abstract

This paper demonstrates the coupling of ultrasound (300 kHz, 80 W) with Fe(II) to degrade the contaminant bisphenol A by a solar photo-assisted process carried out at natural pH ∼ 5. An experimental design that allowed runs in batch (ultrasound → Fe2+/UV and Fe2+/UV → ultrasound) or in simultaneous (ultrasound/Fe2+/UV) modes was developed. To gain a better understanding of the phenomena involved in the systems, ultrasound, ultrasound/Fe2+, Fe2+/UV, and Fe2+/UV/H2O2 (photo-Fenton) were also performed. After 4 h of treatment, 11%, 29%, and 70% of the initial total organic carbon had been removed by ultrasound, photo-Fenton, and ultrasound/Fe2+/UV, respectively. The synergistic effect can be explained by the complementarity of the two processes: ultrasound more effectively destroys the initial bisphenol A compound, whereas the photo-Fenton system is better able to eliminate the bisphenol A by-products. The influence of the type of saturating gas (oxygen or air) used was also investigated.

Keywords
Endocrine-disrupting chemical; Bisphenol A elimination; Sonochemical degradation; Photo-Fenton; Water treatment; Advanced oxidation
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Sequential helio-photo-Fenton and sonication processes for the treatment of bisphenol A
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 199, Issues 2–3, 25 September 2008, Pages 197–203
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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