Andrzejewski, Przemyslav, Kasprzyk-Hordern, Barbara and Nawrocki, Jacek (2008) N-nitrosodimethylamine (NDMA) formation during ozonation of dimethylamine-containing waters. Water Research, 42 (4-5). pp. 863-870. ISSN 00431354Metadata only available from this repository.
Ozonation of aqueous solutions of dimethylamine (DMA) leads to the formation of nitrosodimethylamine (NDMA). The yield of reaction is low (below 0.4% in relation to DMA) and increases with increasing pH. Contact time, ozone/DMA ratio and radical scavengers are other variables controlling the yield of reaction. Data from the literature and observed ozonation by-products suggest that nitrosation of DMA might be responsible for nitrosamine generation. NDMA can be recognized as a by-product of ozonation of DMA in water, which is formed in a specific, but reasonable, range of ozone/DMA ratios.
The reaction may have potential importance for water treatment technology assuming reasonable micrograms per liter of DMA concentrations in raw waters.
|Subjects:||Q Science > Q Science (General)|
Q Science > QD Chemistry
|Schools:||School of Applied Sciences|
School of Applied Sciences > Materials and Catalysis Research Centre
|Depositing User:||Sara Taylor|
|Date Deposited:||30 Jun 2008 10:27|
|Last Modified:||11 Feb 2009 14:44|
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