Bromate reduction by denitrifying bacteria

Article Abstract:

Experimental studies confirm that mixed bacterial populations reduce the bromate to Br in an anaerobically incubated medium. Pseudomonas spp. is the major bacteria of the population and reduction rate due to strains of Pseudomonas fluorescens is significantly lower than that due to mixed bacterial population. Bromate-reducing bacteria exhibit a preference toward the electron acceptor nitrate and presence of NO(sub 3)(super -) prevents the bromate reduction. Complete conversion of bromate to Br- suggests the absence of accumulation of intermediates.

Research, Drinking water, Contamination, Pseudomonas fluorescens

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Microbially mediated biodegradation of hexahydro-1,3,5-trinitro-1,3,5- triazine by extracellular electron shuttling compounds

Article Abstract:

The potential for humic substances to stimulate the reduction of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is studied. A novel approach for the remediation of RDX-contaminated environments using microbially mediated electron shuttling is described and the findings suggest that extracellular electron shuttle-mediated RDX transformation is not organism specific but rather is catalyzed by multiple Fe(III)- and humic-reducing species.

Illinois, Cyclic crudes and intermediates, Cyclic Crude and Intermediate Manufacturing, Cyclohexane, Environmental aspects, Oxidation-reduction reaction, Oxidation-reduction reactions, Chemical properties

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