Division BAT 25 In order to reduce emissions to water from surface run-off water, BAT is to use a combination of the techniques given below.
United Kingdom
| Descriptions of the techniques are given in Section 1.4.2. | ||
| Technique | Applicability | |
|---|---|---|
| a | Mechanical separation of coarse materials by screens and sieves as preliminary treatment | Generally applicable |
| b | Oil-water separationf1 | Generally applicable |
| c | Removal of solids by sedimentation in retention basins or settlement tanks | There may be restrictions to the applicability of sedimentation due to space requirements |
Table 6
BAT-associated emission levels (BAT-AELs) for TSS for the direct discharge of surface run-off water to a receiving water body
| Parameter | Unit | BAT-AELs(average of samples obtained during one year) |
|---|---|---|
| TSS | mg/l | 10–40 |
The associated monitoring is in BAT 14.
Annotations
Footnotes
- f1
-
Descriptions of the techniques are given in Section 1.4.2.