Worldwide wastewater treatment observatory · 
Belgium
Aguas SB Observatory · public data to understand water
WWTP Merchtem
Belgium · official identifier BE_F_TP_220
16,200h-e design capacity (2022) · 147th of 397 (tied with 4 others)
European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier BE_F_TP_220 · reported size 16,200 h-e design capacity · received load 9,300 h-e · reported treatment: PST · data year 2022. 147th of 397 records with reported size in the inventory of Belgium (tied with 4 others); 0.15 % of the sum of those 397 records in h-e (sum of records, not national capacity); nearest inventoried plant at 4.3 km · 2 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 + tertiary (more stringent) (as reported to the EEA: PST) · reported levels |
|---|---|
| Nitrogen removal | yes |
| Phosphorus removal | yes |
| UV disinfection | not reported |
| Status | active |
| Reported coordinates | 50.9504, 4.2504 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 10,000 to 149,999 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: 9,300 p.e. of reported load; equivalent average load 9,294 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 (3,339 m³/day of reference), not measured or available for reclamation.
NEARBY PLANTS
Nearby wastewater treatment plants
| Plant | Distance | Capacity (h-e) | Load 2022 | Treatment |
|---|---|---|---|---|
| Asse - Bollebeek | 4.3 km | 7,200 | 3,600 | primary, secondary and tertiary |
| Londerzeel | 8.0 km | 9,450 | 9,700 | primary, secondary and tertiary |
| Humbeek | 10.1 km | 3,060 | 2,000 | primary, secondary and tertiary |
| Dendermonde | 11.4 km | 72,000 | 52,300 | primary, secondary and tertiary |
| Sint-Amands | 11.5 km | 9,000 | 7,900 | primary, secondary and tertiary |
Distances are between reported coordinates; proximity does not establish a hydraulic connection.
QUESTIONS
Frequently asked questions about this plant
What capacity does WWTP Merchtem report?
Reported size: 16,200 h-e design capacity. Received load: 9,300 h-e. Units are retained without conversion.
What treatment is reported?
Treatment PST. Nitrogen, phosphorus and UV are shown only when explicitly reported.
How much energy would a reference plant use with the load of Merchtem?
Aguas SB simulator reference scenario for 9,300 p.e. of reported load: 528,305 kWh per year (56.8 kWh per p.e. of average load), with aeration as 39 % 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.