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Photocatalytic treatment of colored wastewater from medical laboratories: Photocatalytic oxidation of hematoxylin

Paper ID Volume ID Publish Year Pages File Format Full-Text
28572 44081 2006 8 PDF Available
Title
Photocatalytic treatment of colored wastewater from medical laboratories: Photocatalytic oxidation of hematoxylin
Abstract

The decolorization and organic content reduction of a synthetic Harris’ Hematoxylin (SHH) solution, which is widely used in biochemical and biomedical laboratories, by the use of heterogeneous and homogeneous photocatalytic methods under artificial irradiation has been studied. In the case of heterogeneous photocatalysis the effect of two different commercial TiO2 products with oxidants such as H2O2 on the decolorisation and the organic content reduction (COD) of the wastewater was examined. Reuse experiments had shown that TiO2 P-25 retains its activity nine times concerning the decolorization of the solution and four times concerning the COD reduction. The Photo-Fenton process activated by using UV-A or visible light appears to be more efficient for this type of wastewater in comparison to the TiO2/oxidant system. The apparent initial photonic efficiency (ζ) of decolorization, as well as mineralization under various experimental conditions has been calculated.

Keywords
Hematoxylin; Hematein; Biomedical wastewater; Photocatalysis; TiO2; Photo-Fenton
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Photocatalytic treatment of colored wastewater from medical laboratories: Photocatalytic oxidation of hematoxylin
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 184, Issues 1–2, 15 November 2006, Pages 18–25
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
Online Support
Any Questions? feel free to contact us