Worldwide wastewater treatment observatory · Austria

Aguas SB Observatory · public data to understand water

WWTP Gratkorn

Austria · official identifier ATTP_6-M3631054R0

533,000h-e design capacity (2022) · 5th of 634

European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier ATTP_6-M3631054R0 · reported size 533,000 h-e design capacity · received load 25,000 h-e · reported treatment: PST · data year 2022. 5th of 634 records with reported size in the inventory of Austria; 2.1 % of the sum of those 634 records in h-e (sum of records, not national capacity); nearest inventoried plant at 6.0 km · 1 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

533,000h-e design capacity

25,000h-e received load (2022)

5 %reported load/capacity ratio (not hydraulic utilisation)

5th of 634by reported size among the 634 records with a size in the inventory · 2.1 % of the sum of those records (sum of records, not national capacity) · the largest plants in the country · how it is calculated

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	47.1238, 15.3416 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

FUENTES PÚBLICAS

What public sources report

Documented milestones

2010-06-28 · Commissioning of the third anaerobic reactor at the Gratkorn wastewater treatment plant began. University of Leoben

Other published data

Mean annual volume treated reported in the 2022 cycle	1,825,000 m³/year (2022) · source

Facts taken from public documents, with their date and link; an authorisation, a project or a planned capacity do not prove operation or quantities actually treated. Aguas SB editorial layer, lot L02; it does not change the official data.

REGULATORY REFERENCES

Referencia normativa: Austria

Regulatory framework of Austria · 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

1,056,616reference kWh per year for this load

42.5kWh per h-e (average load) per year

158,492€ per year at 0.15 €/kWh

54 %share of energy used for aeration

what this estimate is · Inputs: 25,000 p.e. of reported load; equivalent average load 24,833 p.e. with the reference profile of Austria (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

1.8estimated hm³ of treated water per year

tertiary treatment reporteda starting point for reclamation

what this estimate is · Volume estimated from the reported load (5,000 m³/day of reference), not measured or available for reclamation.

LOCATION

Austria: this plant on the map

this plant on the map · regional directory.

NEARBY PLANTS

Nearby wastewater treatment plants

Plant	Distance	Capacity (h-e)	Load 2022	Treatment
Deutschfeistritz-Kleinstübin	6.0 km	4,500	3,913	primary, secondary and tertiary
Hitzendorf	11.1 km	14,000	9,158	primary, secondary and tertiary
Semriach	11.8 km	3,000	1,627	primary, secondary and tertiary
Übelbach	12.0 km	2,600	2,331	primary, secondary and tertiary
St.Radegund	13.1 km	2,500	1,594	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 Gratkorn report?

Reported size: 533,000 h-e design capacity. Received load: 25,000 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 Gratkorn?

Aguas SB simulator reference scenario for 25,000 p.e. of reported load: 1,056,616 kWh per year (42.5 kWh per p.e. of average load), with aeration as 54 % 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.