Biolog Wastewater Treatment Plant, Ligota, Poland - Closed Secondary Facility

Biolog is a former wastewater treatment plant located in Ligota, a village in the gmina of Kobyla Góra, powiat ostrzeszowski, in the Wielkopolskie voivodeship of Poland. The plant was designed to serve the local population with a capacity of 4,080 cubic meters per day, operating at a secondary treatment level before its closure. As a secondary treatment facility, Biolog would have employed biological processes to reduce organic matter and suspended solids, meeting the standards set by Polish regulations and the EU Urban Waste Water Treatment Directive (91/271/EEC). For small agglomerations like Ligota, secondary treatment is typically required to protect receiving waters from pollution. The plant's discharge likely flowed into local watercourses that drain into the Oder River basin, which ultimately reaches the Baltic Sea. The closure of the plant suggests that wastewater management has been consolidated or upgraded elsewhere, reducing local discharge impacts.

The plant is situated inland in the Wielkopolskie region, within the Oder River basin. The Oder River flows northward into the Szczecin Lagoon and then the Baltic Sea. The local watershed supports diverse aquatic life and agricultural activities. The closure of the plant reduces nutrient and pollutant loads to the receiving waters, benefiting downstream ecosystems.