Toxic Effects of Modified Fenton Reactions on Xanthobacter flavus FB71

Author:

Büyüksönmez Fatïh1,Hess Thomas F.1,Crawford Ronald L.1,Watts Richard J.2

Affiliation:

1. Center for Hazardous Waste Remediation Research, University of Idaho, Moscow, Idaho 83844,1 and

2. Department of Civil and Environmental Engineering, Washington State University, Pullman, Washington 991642

Abstract

ABSTRACT The toxic effects of modified Fenton reactions on Xanthobacter flavus FB71, measured as microbial survival rates, were determined as part of an investigation of simultaneous abiotic and biotic oxidations of xenobiotic chemicals. A central composite, rotatable experimental design was developed to study the survival rates of X. flavus under various concentrations of hydrogen peroxide and iron(II) and at different initial cell populations. A model based on the experimental results, relating microorganism survival to the variables of peroxide, iron, and cellular concentrations was formulated and fit the data reasonably well, with a coefficient of determination of 0.76. The results of this study indicate that the use of simultaneous abiotic and biotic processes for the treatment of xenobiotic compounds may be possible.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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