Several factors suspected of contributing to N-nitrosodimethylamine (NDMA)
formation were tested for significance with respect to formation in activated sludge.
NDMA is of concern in situations where water is limited and treated wastewater is being
used to recharge aquifers for drinking water. The significant factors in NDMA formation
were determined to be nitrite and chlorine concentrations and the presence of
dithiocarbamates, such as thiram, ziram and ferbam that contain a dimethylamine
structure. The addition of nitrite did not promote NDMA formation without the presence
of an organic precursor. NDMA yields varied with different batches of activated sludge;
however, the same trends were observed. This variability indicated that the
water quality itself and/or biological activity may contribute to the extent of NDMA
formation from precursor compounds. Includes 18 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 280 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 11 |
| Published : | 06/15/2003 |
