Disposal of DNOC
The NPRI (Environment Canada, 2003b) reported that amounts of up to 2 tonnes of DNOC and its salts were annually “transferred for disposal” by Nova Chemicals (Table 2). For all years before 2002, the methods of treatment were biological, such as biooxidation, and incineration or thermal. For the year 2002, disposal was to a landfill.
| Year | Transfers for Disposal (tonnes) |
Biological Treatment (tonnes) |
Incineration (tonnes) |
Landfill (tonnes) |
|---|---|---|---|---|
| 2002 | 1.49 | 1.49 | ||
| 2001 | 0.01 | 0.01 | ||
| 2000 | 0.25 | 0.03 | 0.22 | |
| 1999 | 0.02 | 0.02 | ||
| 1998 | 0.68 | 0.04 | 0.64 | |
| 1997 | 0.36 | 0.06 | 0.3 | |
| 1996 | 2.00 | 0.08 | 1.92 | |
| 1995 | 0.03 | 0.03 | ||
| 1994 | 0.04 | 0.04 |