Hammargards arv Kungsbacka Wastewater Treatment Plant, Kungsbacka, Sweden

Hammargards arv Kungsbacka is a wastewater treatment plant located in Kungsbacka, Halland County, Sweden. The plant serves a population of approximately 49,500, placing it in the medium-to-large agglomeration category under EU classification. As a Swedish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations between 10,000 and 150,000 population equivalent. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Kattegat, a part of the North Sea. This coastal discharge area supports diverse marine life and is an important ecological zone. The plant's location within 50 km of the coast means its effluent quality is critical for protecting the sensitive marine environment.

The plant's treated effluent flows into the local water system, which drains into the Kattegat, a sea area between Sweden and Denmark that connects to the North Sea. The Kattegat supports diverse marine ecosystems, including fish spawning grounds and migratory bird habitats. As a coastal-influenced facility, the plant's nutrient removal performance is important for preventing eutrophication in the sensitive marine environment.