Table 20
Intake water treatment in mineral extraction industries,
by type of treatment, industry group and region, 2007
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| Screening | Filtration | Chlorination and disinfection | Corrosion and slime control | Alkalinity control | Hardness | Coagulation and flocculation | Other treatments | |
|---|---|---|---|---|---|---|---|---|
| millions of cubic metres | ||||||||
| Industry group | ||||||||
| Coal mines | x | 0.2 A | 3.3 C | 0.0 | 0.0 | x | x | x |
| Metal mines | x | 20.7 C | 8.4 A | x | x | x | x | x |
| Non-metal mines 1 | 27.0 C | 2.5 E | 7.6 C | x | x | 0.5 A | 0.3 C | x |
| Total | 45.7 B | 23.3 C | 19.4 B | 45.4 A | 5.5 E | x | x | 4.6 A |
| Region | ||||||||
| Atlantic 2 | 0.0 | x | x | x | x | 0.0 | x | x |
| Quebec | x | x | x | x | F | x | x | x |
| Ontario | 26.3 D | x | 1.1 C | x | x | x | 0.4 D | x |
| Prairies 3 | x | 6.8 D | 8.8 B | 13.6 B | x | 0.5 A | 1.1 A | x |
| British Columbia and territories 4 | 1.7 E | 1.0 D | 3.8 B | x | 0.0 | x | 0.0 | x |
| Canada | 45.7 B | 23.3 C | 19.4 B | 45.4 A | 5.5 E | x | x | 4.6 A |
Excluding sand, gravel, clay, and ceramic and
refractory minerals mining and quarrying (North American Industry Classification
System, code 21232).
Atlantic provinces include: Newfoundland and
Labrador, Prince Edward Island, Nova Scotia and New Brunswick.
Prairie provinces include: Manitoba, Saskatchewan
and Alberta.
British Columbia and territories include: British
Columbia, Yukon, Northwest Territories and Nunavut.
Note(s):
Figures may not add up to totals due to rounding.
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