Skip to main content

Removal of Benzene from Wastewater by Enzyme-Catalyzed Oxidative Polymerization using Soybean Peroxidase Combined with a Modified Fenton Reaction

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

A two-step process for the removal of benzene from wastewater, pretreatment by modified Fenton reaction coupled with peroxidase-catalyzed polymerization of the resulting phenolic compounds, is presented. In the first step, the effect of pH, hydrogen peroxide and ferrous iron concentrations and reaction time for the Fenton reaction were studied to maximize the conversion of benzene to phenolic compounds without causing significant mineralization. Under optimum Fenton reaction conditions, conversion of benzene generated a mixture containing phenol, benzenediols, biphenyl and benzoquinone. In the second step, polymerization of the phenolic compounds was achieved by soybean peroxidase (SBP) in the presence of hydrogen peroxide. Factors of interest for the three-hour enzymatic step were pH, enzyme and hydrogen peroxide concentrations. Biphenyl and benzoquinone were outside the scope of enzymatic treatment. However, SBP was successful in removing the rest of the phenolic products under optimum conditions. Alum was used for color removal from the reaction mixture.

Keywords: benzene; enzymatic treatment; hazardous waste; limited Fenton reaction; phenolic compounds; soybean peroxidase; wastewater

Document Type: Research Article

DOI: https://doi.org/10.2175/193864710798193860

Publication date: 2010-01-01

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 These proceedings are not peer reviewed.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
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect 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