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Degradation of tetracycline by photo-Fenton process—Solar irradiation and matrix effects

Paper ID Volume ID Publish Year Pages File Format Full-Text
29324 44154 2007 7 PDF Available
Title
Degradation of tetracycline by photo-Fenton process—Solar irradiation and matrix effects
Abstract

The degradation of the antibiotic tetracycline (TC) by the photo-Fenton process was evaluated under black-light and solar irradiation. The influences of iron source (Fe(NO3)3 or ferrioxalate), hydrogen peroxide and matrix (pure water, surface water and a sewage treatment plant effluent—STP) were evaluated. Under black-light irradiation, TC degradation was favored in the presence of Fe(NO3)3, achieving total degradation after 1 min irradiation, while under solar light the use of ferrioxalate favors the degradation. Nevertheless, no significant difference in total organic carbon removal was observed between these two iron sources, achieving a residual concentration of around 5 mg L−1 under black-light and 2 mg L−1 under solar light irradiation. No decrease of the degradation efficiency relative to pure water was observed when TC was irradiated in a sample of surface water, under either black-light or solar irradiation. However, lower efficiency was obtained under black-light when TC was present in a sample of STP effluent, indicating the interference of the constituents of this sample on the overall efficiency of the process. On the other hand, under solar irradiation in the presence of ferrioxalate, no influence of the matrix was observed, even in the sample of STP effluent, achieving total degradation of TC in 1.5 min.

Keywords
Advanced oxidation process; Sewage treatment plant; Antibiotic; Ferrioxalate
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Degradation of tetracycline by photo-Fenton process—Solar irradiation and matrix effects
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 187, Issue 1, 5 March 2007, Pages 33–39
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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