Classification of treatment methods for small wastewater treatment plants (<50 pe)
The classification is primarily a statistical standard applied for classification of wastewater treatment plants with capacity less than 50 person equivalents (pe) according to treatment methods.
Treatment methods for small wastewater treatment plants (<50 pe) 2025-04
- Valid from
- 1.4.2025
- Valid to
- —
The classification is primarily a statistical standard applied for classification of wastewater treatment plants with capacity less than 50 person equivalents (pe) according to treatment methods.
Treatment methods for small wastewater treatment plants (<50 pe) 2025-04 - Treatment methods for small wastewater treatment plants (<50 pe) 2004
- ID
- 2518
- Owner section
- 425 - Division for energy, environmental and transport statistics
- Responsible
- Berge, Gisle
Codes
The correspondence links 14 codes from “Treatment methods for small wastewater treatment plants (<50 pe) 2025-04” to 14 codes from “Treatment methods for small wastewater treatment plants (<50 pe) 2004”.
| Treatment methods for small wastewater treatment plants (<50 pe) 2025-04 | Treatment methods for small wastewater treatment plants (<50 pe) 2004 | ||
|---|---|---|---|
| 1 | Direct discharges | 1 | Direct discharges |
| 10 | Biological toilet, no grey water filter | 5.1 | Biological toilet |
| 11 | Biological toilet, filter for grey water | 5.2 | Biological toilet, filter for grey water |
| 12 | Sealed tank for blackwater, no grey water filter | 4.2 | Sealed tank for blackwater |
| 13 | Sealed tank for blackwater, filter for grey water | 4.3 | Sealed tank for blackwater, filter for grey water |
| 14 | Sealed tank for all wastewater | 4.1 | Sealed tank for all wastewater |
| 15 | Other solution | 5.4 | Other |
| 2 | Sludge separator without afterfiltration | 2.1 | Sludge separator without afterfiltration |
| 3 | Sludge separator with sandfilter (added soil masses) | 2.3 | Sludge separator with sandfilter |
| 4 | Sludge separator with infiltration (present soil masses) | 2.2 | Sludge separator with infiltration |
| 5 | Sludge separator with constructed wetland | 5.3 | Constructed wetland |
| 6 | Mini wastewater treatment plant - biological | 3.1 | Mini wastewater treatment plant (biological) |
| 7 | Mini wastewater treatment plant - chemical | 3.2 | Mini wastewater treatment plant (chemical) |
| 8/9 | Mini wastewater treatment plant - chemical/biological | 3.3 | Mini wastewater treatment plant (chemical-biological) |