Worldwide wastewater treatment observatory · 
Sweden
Aguas SB Observatory · public data to understand water
WWTP Mariefreds Avloppsreningsverk
Sweden · official identifier SE0486-050-005
9,500h-e design capacity (2022) · 206th of 434 (tied with 5 others)
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier SE0486-050-005 · reported size 9,500 h-e design capacity · received load 6,100 h-e · reported treatment: PS · data year 2022. 206th of 434 records with reported size in the inventory of Sweden (tied with 5 others); 0.07 % of the sum of those 434 records in h-e (sum of records, not national capacity); nearest inventoried plant at 15.2 km. Reported data with their source; estimates are not measurements of the plant.
Aguas SB does not manage this wastewater treatment plant.
WHAT THE DATA REPORT
Reported data official data · 2022
| Treatment | primary + secondary (as reported to the EEA: PS) · reported levels |
|---|---|
| Nitrogen removal | not reported |
| Phosphorus removal | yes |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 59.2775, 17.2575 precision reported by the source: level 2 what it means |
| Source and year | European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · dataset record |
REGULATORY REFERENCES
Referencia normativa: Sweden
Regulatory framework of Sweden · Directive (EU) 2024/3019: reported-capacity band 1,000 to 9,999 p.e.; obligations are set by agglomeration load, not by the capacity of this plant. Individual applicability is not determined in this profile.
SCENARIO
Reference energy scenario for this load estimate · simulator engine
what this estimate is · Inputs: 6,100 p.e. of reported load; equivalent average load 6,097 p.e. with the reference profile of Sweden (hypothesis with reported load and reference profile; not a measurement). Open this scenario in the simulator · how it is calculated and what it is not.
Reference scenario computed on the server from the reported load and the country profile; an estimate, not a measurement. The simulator recomputes it when opened.
WATER THAT COULD RETURN
Reuse potential
what this estimate is · Volume estimated from the reported load (1,446 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Strangnas Avloppsreningsverk | 15.2 km | 35,000 | 27,800 | primary and secondary |
| Gnesta Avloppsreningsverk | 26.7 km | 7,500 | 4,400 | primary and secondary |
| Balsta Avloppsreningsverk | 32.1 km | 30,000 | 17,359 | primary and secondary |
| Ekebyhov, Avloppsanlaggning | 32.8 km | 25,000 | 27,600 | primary and secondary |
| Malmkopings Avloppsreningsverk | 34.1 km | 5,000 | 6,073 | primary and secondary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP Mariefreds Avloppsreningsverk report?
Reported size: 9,500 h-e design capacity. Received load: 6,100 h-e. Units are retained without conversion.
What treatment is reported?
Treatment PS. Nitrogen, phosphorus and UV are shown only when explicitly reported.
How much energy would a reference plant use with the load of Mariefreds Avloppsreningsverk?
Aguas SB simulator reference scenario for 6,100 p.e. of reported load: 295,786 kWh per year (48.5 kWh per p.e. of average load), with aeration as 45 % of consumption. Estimate with the country reference profile; not a measurement of the plant.
SOURCE AND CORRECTIONS
Source
reported data · European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · data 2022 · edition 2023 · source licence: CC BY 4.0 · JSON for this plant · suggest a correction · catalogue 2026-11-06. Reported data, not a current inspection; no compliance judgements.