Incorporation of 2,4,6-trinitrotoluene (TNT) transforming bacteria into explosive formulations

Nyanhongo, G S; Aichernig, N; Ortner, M; Steiner, Walter; Guebitz, G M (2009). Incorporation of 2,4,6-trinitrotoluene (TNT) transforming bacteria into explosive formulations. Journal of hazardous materials, 165(1-3), pp. 285-90. Amsterdam: Elsevier 10.1016/j.jhazmat.2008.09.107

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Pseudomonas putida GG04 and Bacillus SF have been successfully incorporated into an explosive formulation to enhance biotransformation of TNT residues and/or explosives which fail to detonate due to technical faults. The incorporation of the microorganisms into the explosive did not affect the quality of the explosive (5 years storage) in terms of detonation velocity while complete biotransformation of TNT moieties upon transfer in liquid media was observed after 5 days. The incorporated microorganisms reduced TNT sequentially leading to the formation of hydroxylaminodinitrotoluenes (HADNT), 4-amino-2,6-dinitrotoluenes; 2-amino-4,6-dinitrotoluenes, different azoxy compounds; 2,6-diaminonitrotoluenes (2,4-DAMNT) and 2,4-diaminonitrotoluenes (2,6-DAMNT). However, the accumulation of AMDNT and DAMNT (major dead-end metabolites) was effectively prevented by incorporating guaiacol and catechol during the biotransformation process.

Item Type:

Journal Article (Original Article)

ISSN:

0304-3894

Publisher:

Elsevier

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:10

Last Modified:

04 May 2014 23:22

Publisher DOI:

10.1016/j.jhazmat.2008.09.107

PubMed ID:

19013713

Web of Science ID:

000266121700038

URI:

https://boris.unibe.ch/id/eprint/30973 (FactScience: 195353)

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