Development of a More Efficient Transition Metal-based Chemical Oxidant Than the Fenton's Reagent for the Degradation of Chloroaromatics in Water

$17.50 plus tax (Refund Policy)

Buy Article:

Abstract:

The Fenton's Reagent (Fe(II)/H2O2) and the Fenton-like Advanced Oxidation Technologies (Fe(III)/H2O2, Fe(II)/H2O2/UV, Fe(III)/H2O2/UV) have been widely applied for the treatment of industrial wastewater and drinking water polluted with recalcitrant organic compounds such as chlorinated phenols, BTEX (benzene, toluene, ethyl benzene, xylene) and dyes. Nevertheless, Fenton's Reagent still faces several and important limitations. The major constraints lie upon its limited efficiency in a narrow range of pH values (2-6) and its requirement for large amounts of iron (stoichiometric, with respect to hydrogen peroxide). The latter suggests that iron is not acting as a catalyst of the system. Motivated by the need to overcome those limitations, this study introduces an alternative transition metal-catalyzed oxidizing system that demonstrates higher efficiencies than the Fenton's Reagent at all the conditions tested for the degradation of a model chloroaromatic contaminant such as 2,4-dichlorophenol (2,4-DCP). The proposed new oxidant system includes the use of peroxymonosulfate (HSO5-, PMS), instead of H2O2, as the oxidant that provides the radicals that are needed for the destruction of the organic contaminants. Cobalt(II) plays the role of the catalyst that respectively iron(II) plays in the Fenton's Reagent.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864702784164659

Publication date: January 1, 2002

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more