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Effective pharmaceutical wastewater degradation by Fenton oxidation with zero-valent iron

Paper ID Volume ID Publish Year Pages File Format Full-Text
46311 46437 2013 6 PDF Available
Title
Effective pharmaceutical wastewater degradation by Fenton oxidation with zero-valent iron
Abstract

The pre-treatment of a pharmaceutical wastewater (PWW) by Fenton oxidation with zero-valent iron (ZVI) and hydrogen peroxide was investigated to improve the degradation of the complex-mixture of organic compounds present in the wastewater. The influence of different crucial parameters such as the initial hydrogen peroxide concentration, the ZVI concentration and the capacity of the ZVI/H2O2 system to treat different organic loading have been evaluated. The optimal conditions for degradation led to TOC reductions of up to 80% in only 1 h of treatment. This degree of organic mineralization was reached by using moderate loadings of ZVI and hydrogen peroxide (ZVI/TOC weight and H2O2/TOC molar ratios of 12 and 3.2, respectively). Moreover, the use of waste-metallic iron shavings in terms of TOC removal compared to commercial ZVI powder may be a promising and cheaper development.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Excellent removal of complex organic pollutants present in wastewater generated from a drug manufacturing plant. ► Up to 80% TOC removal reached in 1 h treatment, using moderate loadings of ZVI and H2O2. ► Easy, economic and effective pre-treatment step.

Keywords
Fenton processes; Zero valent iron (ZVI); Pharmaceutical wastewater
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Effective pharmaceutical wastewater degradation by Fenton oxidation with zero-valent iron
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 136–137, 5 June 2013, Pages 64–69
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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