Worldwide wastewater treatment observatory · 
Belgium
Aguas SB Observatory · public data to understand water
WWTP LIEGE SCLESSIN
Belgium · official identifier BERW6206301
150,000h-e design capacity (2022) · 12th of 397
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier BERW6206301 · reported size 150,000 h-e design capacity · received load 94,059 h-e · reported treatment: PS · data year 2022. 12th of 397 records with reported size in the inventory of Belgium; 1.4 % of the sum of those 397 records in h-e (sum of records, not national capacity); nearest inventoried plant at 2.7 km · 18 within 10 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 | yes |
| Phosphorus removal | yes |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 50.6164, 5.5437 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: Belgium
Regulatory framework of Belgium · Directive (EU) 2024/3019: reported-capacity band 150,000 p.e. or more; 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: 94,059 p.e. of reported load; equivalent average load 93,985 p.e. with the reference profile of Belgium (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 (33,767 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Embourg | 4.3 km | 24,300 | 12,385 | primary and secondary |
| Liege (Grosses Battes) | 4.4 km | 53,137 | 10,373 | primary and secondary |
| Chawresse | 7.6 km | 1,890 | 132 | primary and secondary |
| Lantin | 8.6 km | 31,500 | 27,751 | primary and secondary |
| La Brouck | 8.8 km | 13,600 | 4,468 | 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 LIEGE SCLESSIN report?
Reported size: 150,000 h-e design capacity. Received load: 94,059 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 LIEGE SCLESSIN?
Aguas SB simulator reference scenario for 94,059 p.e. of reported load: 4,002,281 kWh per year (42.6 kWh per p.e. of average load), with aeration as 46 % 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.