UWWTP_MATENA Wastewater Treatment Plant, Brest, Slovenia

UWWTP_MATENA is a municipal wastewater treatment plant located in Brest, a settlement in the Municipality of Ig, Slovenia. The plant serves a small population of 113 people and is designed with a capacity of 500 cubic meters per day, currently discharging 17.65 cubic meters per day of treated effluent. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Slovenia, as an EU member state, implements this directive, ensuring that small-scale plants like UWWTP_MATENA meet effluent quality standards for organic matter and suspended solids. The treated wastewater is discharged into the local water system, which ultimately drains into the Ljubljanica River basin and then into the Sava River, a major tributary of the Danube. This contributes to the ecological health of the Danube River Basin, supporting diverse aquatic life and downstream ecosystems.

The plant's discharge enters the local hydrology of the Ljubljanica River basin, which flows into the Sava River and eventually the Danube River. This watershed supports diverse aquatic habitats and is important for migratory fish species. The secondary treatment provided helps protect water quality in this ecologically sensitive region.