Wastewater treatment type
Classification structure
| Code | Title |
|---|---|
| 1 | Primary treatment |
| 2 | Secondary treatment |
| 3 | Secondary treatment with additional phosphorous removal |
| 4 | Tertiary treatment |
| 5 | No treatment |
- Date modified:
| Code | Title |
|---|---|
| 1 | Primary treatment |
| 2 | Secondary treatment |
| 3 | Secondary treatment with additional phosphorous removal |
| 4 | Tertiary treatment |
| 5 | No treatment |