Table 20
Intake water treatment in mineral extraction industries,
by type of treatment, industry group and region, 2011
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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 | 0.3 A | 0.1 A | x | 0.0 | 0.3 A | 0.0 A | x |
Metal mines | 33.9 B | 10.6 A | 6.0 D | x | x | 0.1 D | 0.3 E | 6.2 A |
Non-metal mines 1 | x | 2.5 A | 3.2 A | x | x | 0.8 B | 0.3 A | x |
Total | 59.0 A | 13.5 A | 9.2 C | 11.2 A | 0.3 D | 1.1 B | 0.7 C | 6.7 A |
Region | ||||||||
Atlantic 2 | x | x | 0.1 D | 0.0 | 0.0 | x | x | x |
Quebec | x | x | x | x | F | 0.1 E | 0.0 | x |
Ontario | 20.0 B | 0.5 D | x | x | x | x | x | 0.0 |
Prairies 3 | 15.1 A | 2.6 A | 3.3 A | x | x | 0.7 A | x | 1.1 C |
British Columbia and territories 4 | x | x | 3.2 E | 0.0 | 0.0 | x | 0.0 | x |
Canada | 59.0 A | 13.5 A | 9.2 C | 11.2 A | 0.3 D | 1.1 B | 0.7 C | 6.7 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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