Overview
UWWTP_POSTOJNA serves the town of Postojna, Slovenia, with a designed capacity of 1.00 unit and a population of 10,794. The plant operates under Slovenia's implementation of the EU Urban Waste Water Treatment Directive.
UWWTP_POSTOJNA is a municipal wastewater treatment plant located in Postojna, Slovenia, serving a population of approximately 10,794. The plant is situated in the karst region of southwestern Slovenia, an area known for its cave systems and sensitive groundwater resources. As a medium-sized agglomeration, the facility plays a key role in protecting local water quality. The plant operates under Slovenia's transposition of the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for agglomerations of this size, with more stringent tertiary treatment if the receiving waters are designated as sensitive areas. The plant's designed capacity of 1.00 unit suggests it is sized to handle the community's wastewater load. The treated effluent from UWWTP_POSTOJNA is discharged into the local karst aquifer system, which feeds the Ljubljanica River basin. This river eventually flows into the Sava River, a major tributary of the Danube, which ultimately reaches the Black Sea. The karst geology makes the region particularly vulnerable to groundwater contamination, underscoring the importance of effective wastewater treatment.
Environmental context
UWWTP_POSTOJNA discharges into the karst aquifer system of the Postojna region, which feeds the Ljubljanica River. The Ljubljanica flows into the Sava River, a major Danube tributary, and ultimately reaches the Black Sea. The karst environment is ecologically sensitive, with underground rivers and caves that support unique aquatic species. Effective treatment is critical to prevent nutrient and pathogen pollution in this fragile system.
Frequently asked questions
UWWTP_POSTOJNA is located in Postojna, Slovenia, at an address on A1 in the Kazarje area of Stara vas. The plant serves the town of Postojna and its surrounding communities.
UWWTP_POSTOJNA serves a population of approximately 10,794 people, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent from UWWTP_POSTOJNA is discharged into the local karst aquifer system, which feeds the Ljubljanica River. This river flows into the Sava River, a major Danube tributary, and eventually reaches the Black Sea.
UWWTP_POSTOJNA operates under Slovenia's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (10,000-15,000 PE), the directive requires secondary treatment, with tertiary treatment if the receiving waters are sensitive areas.
In Slovenia, wastewater treatment plants serving populations around 10,000 typically provide secondary treatment as a minimum, in line with the EU Urban Waste Water Treatment Directive. Some plants may also include nutrient removal if discharging into sensitive areas like the karst aquifer.
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