Formation of nitrosamines under denitrification conditions. Final report
The formation of nitrosamines under denitrification conditions was evaluated as part of the Army's program on pollution abatement. Various amines (dimethyl-diethanol-, dipropyl- and dibutyl-) were evaluated in batch and/or continuous culture microbial systems under anaerobic conditions with high nitrate loads. With the exception of dimethylamine, tha amines do not form detectable concentrations of the corresponding nitrosamines in the alkaline denitrificatioin systems. N-nitrosodimethylamine (NDMA) is detected in part per billion concentrations in many of these systems. The formation of NDMA is apparently not biologically mediated in the batch systems, however, the reason for its formation in the continuous systems is not clear. The contribution of microbially produced catalysts and the role of the intracellular environment in the reactions is discussed.
- Research Organization:
- Army Natick Research and Development Command, MA (USA)
- OSTI ID:
- 5330044
- Report Number(s):
- AD-A-135541/1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
DENITRIFICATION
HEALTH HAZARDS
NITROSAMINES
SYNTHESIS
POLLUTION ABATEMENT
AMINES
ANAEROBIC CONDITIONS
CARCINOGENS
CATALYSTS
CHEMICAL REACTIONS
CULTURE MEDIA
ENZYMES
GAS CHROMATOGRAPHY
MASS SPECTROSCOPY
MICROORGANISMS
MUTAGENS
NITRATES
POLLUTION
CHROMATOGRAPHY
HAZARDS
NITROGEN COMPOUNDS
NITROSO COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SPECTROSCOPY
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
550200 - Biochemistry