Biological treatment of TNT-contaminated soil. 1. anaerobic cometabolic reduction and interaction of TNT and metabolites with soil components

Article Abstract:

Increased 2,4,6-trinitrotoluene (TNT) concentrations hastens the cometabolic reduction of TNT to 2,4,6-triaminotoluene by an undefined anaerobic consortium. Decreased TNT concentrations and feeding rates of glucose, however, were found to hamper the cometabolic reduction of TNT to 2,4,6-triaminotoluene. Results from abiotic adsorption experiments and microbial reduction of TNT reveal that reduction products of TNT, particularly hydroxulaminodinitrotoluenes and 2,4,6-triaminotoluene, bind irreversibly to soil components.

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Biological treatment of TNT-contaminated soil. 2. biologically induced immobilization of the contaminants and full-scale application

Article Abstract:

The biological treatment of 2,4,6-trinitrotoluene-contaminated soil (TNT) is successfully done on a slurry reactor. The anaerobic bacteria has completely reduced the nitro groups of TNT and aminodinitrotoluenes and allowed the complete and irreversible binding of the reduced products to the soil. The anaerobic treatment in the soil slurry has also reduced dinitrotoluene and hexahydro-1,3,5-trinitro-1,3,5-triazine.

Anaerobic bacteria

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