Tidaholms avloppsreningsverk - Wastewater Treatment Plant in Tidaholm, Sweden

Tidaholms avloppsreningsverk is the municipal wastewater treatment plant for Tidaholm, a town in Västra Götaland County, Sweden. The plant serves a population of approximately 9,582, classifying it as a medium-sized agglomeration under Swedish and EU regulations. Located inland, the facility plays a key role in managing local wastewater and protecting downstream water quality. As a Swedish plant, Tidaholms avloppsreningsverk operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are sensitive to eutrophication. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per year or similar unit), indicating a facility scaled to its service population. The treated effluent from the plant is discharged into a local watercourse that flows into the Göta älv river system, eventually reaching the Kattegat sea area. This discharge pathway means the plant's performance directly affects the ecological health of the river basin and the marine environment. Proper treatment helps prevent nutrient loading and protects aquatic habitats in the region.

The plant discharges into a local watercourse that is part of the Göta älv drainage basin, which flows into the Kattegat, a sea area between Sweden and Denmark. The Kattegat supports diverse marine life, including fish stocks and benthic communities. The plant's nutrient removal performance is critical to preventing eutrophication in this sensitive coastal zone, which is influenced by both Swedish and international water quality standards.