Division The BAT-associated consumption levels for water
United Kingdom
See Table 1 (for bovine hides) and Table 2 (for sheepskins).
Table 1
BAT-associated consumption levels for water for the processing of bovine hides
| Monthly average values. Processing of calfskins and vegetable tanning may require a higher water | ||
| Process stages | Water consumption per tonne of raw hidef1(m3/t) | |
|---|---|---|
| Unsalted hides | Salted hides | |
| Raw to wet blue/white | 10 to 15 | 13 to 18 |
| Post-tanning processes and finishing | 6 to 10 | 6 to 10 |
| Total consumption. | 16 to 25 | 19 to 28 |
Table 2
BAT-associated consumption levels for water for the processing of sheepskins
| Monthly average values. Wool-on sheepskins may require a higher water consumption. | |
| Process stages | Specific water consumptionf2 |
|---|---|
| litres per skin | |
| Raw to pickle | 65 to 80 |
| Pickle to wet blue | 30 to 55 |
| Post-tanning processes and finishing | 15 to 45 |
| Total | 110 to 180 |
Annotations
Footnotes
- f1
-
Monthly average values. Processing of calfskins and vegetable tanning may require a higher water
- f2
-
Monthly average values. Wool-on sheepskins may require a higher water consumption.