Worldwide wastewater treatment observatory · Bulgaria

Aguas SB Observatory · public data to understand water

WWTP UWWTP Varna

Bulgaria · official identifier BGWT10135_00_01

450,000h-e design capacity (2022) · 3rd of 124

European Environment Agency — Waterbase-UWWTD, data call 2023 (versión final pública) · official identifier BGWT10135_00_01 · reported size 450,000 h-e design capacity · received load 260,280 h-e · reported treatment: PST · data year 2022. 3rd of 124 records with reported size in the inventory of Bulgaria; 5.2 % of the sum of those 124 records in h-e (sum of records, not national capacity); nearest inventoried plant at 6.2 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

450,000h-e design capacity

260,280h-e received load (2022)

58 %reported load/capacity ratio (not hydraulic utilisation)

3rd of 124by reported size among the 124 records with a size in the inventory · 5.2 % 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	43.2178, 27.7935 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

2015-06-19 · Varna inaugurated the final works in its wastewater treatment plant reconstruction and upgrade project. City of Varna

Other published data

Mean annual volume treated reported in the 2022 cycle	31,177,727 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: Bulgaria

Regulatory framework of Bulgaria · 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

7,488,279reference kWh per year for this load

38.4kWh per h-e (average load) per year

1,123,242€ per year at 0.15 €/kWh

48 %share of energy used for aeration

what this estimate is · Inputs: 260,280 p.e. of reported load; equivalent average load 195,210 p.e. with the reference profile of Bulgaria (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

28.5estimated hm³ of treated water per year

tertiary treatment reporteda starting point for reclamation

what this estimate is · Volume estimated from the reported load (78,084 m³/day of reference), not measured or available for reclamation.

LOCATION

Bulgaria: 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
Uwwtp Beloslav	6.2 km	14,967	4,249	primary, secondary and tertiary
Kanalizacia Varna	9.6 km	72,122	28,450	primary, secondary and tertiary
Uwwtp Devnya	16.2 km	23,300	33,734	primary, secondary and tertiary
Uwwtp K.K.Zlatni Piasaci	22.9 km	72,122	23,396	primary, secondary and tertiary
Uwwtp Dolni Chiflik	25.0 km	6,476	18,146	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 UWWTP Varna report?

Reported size: 450,000 h-e design capacity. Received load: 260,280 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 UWWTP Varna?

Aguas SB simulator reference scenario for 260,280 p.e. of reported load: 7,488,279 kWh per year (38.4 kWh per p.e. of average load), with aeration as 48 % 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.