Worldwide wastewater treatment observatory · Austria

Aguas SB Observatory · public data to understand water

WWTP Graz-Gössendorf

Austria · official identifier ATTP_6-M3489301R0

500,000h-e design capacity (2022) · 6th of 634

European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier ATTP_6-M3489301R0 · reported size 500,000 h-e design capacity · received load 488,484 h-e · reported treatment: PST · data year 2022. 6th of 634 records with reported size in the inventory of Austria; 1.9 % of the sum of those 634 records in h-e (sum of records, not national capacity); nearest inventoried plant at 10.0 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

500,000h-e design capacity

488,484h-e received load (2022)

98 %reported load/capacity ratio (not hydraulic utilisation)

6th of 634by reported size among the 634 records with a size in the inventory · 1.9 % 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	46.9964, 15.4720 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

2007 · Expansion of Graz’s wastewater treatment plant in Gössendorf was completed, bringing design capacity to 500,000 population equivalent. City of Graz

Other published data

Mean annual volume treated reported in the 2022 cycle	25,895,724 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 L03; 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

13,501,760reference kWh per year for this load

27.8kWh per h-e (average load) per year

2,025,264€ per year at 0.15 €/kWh

63 %share of energy used for aeration

what this estimate is · Inputs: 488,484 p.e. of reported load; equivalent average load 485,228 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

35.7estimated hm³ of treated water per year

tertiary treatment reporteda starting point for reclamation

what this estimate is · Volume estimated from the reported load (97,697 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
Dobl-Muttendorf	10.0 km	10,000	8,433	primary, secondary and tertiary
Heiligenkreuz Am Waasen	10.3 km	7,000	3,748	primary, secondary and tertiary
Lieboch	10.3 km	12,000	10,029	primary, secondary and tertiary
Zwaring-Pöls	11.5 km	2,000	1,435	primary, secondary and tertiary
Hitzendorf	13.2 km	14,000	9,158	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 Graz-Gössendorf report?

Reported size: 500,000 h-e design capacity. Received load: 488,484 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 Graz-Gössendorf?

Aguas SB simulator reference scenario for 488,484 p.e. of reported load: 13,501,760 kWh per year (27.8 kWh per p.e. of average load), with aeration as 63 % 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.