Lasbek Wastewater Treatment Plant, Barkhorst, Schleswig-Holstein

Lasbek wastewater treatment plant is located in Barkhorst, a locality within the municipality of Lasbek in the district of Stormarn, Schleswig-Holstein, Germany. The plant served a population equivalent of 1,865 and had a designed capacity of 2,000 cubic meters per day. It is currently closed. The plant provided secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent between 2,000 and 10,000. The directive mandates secondary treatment for all discharges from such communities to protect receiving waters. The treated effluent was discharged into local watercourses that eventually drain into the Elbe River and then into the North Sea. The plant's operation contributed to maintaining water quality in the region's sensitive aquatic ecosystems, which support diverse flora and fauna.

The plant's discharge likely entered small streams in the Stormarn district, which flow into the Trave River or the Elbe River, ultimately reaching the North Sea. The North Sea is an ecologically sensitive marine environment supporting fisheries and migratory bird populations. The secondary treatment provided by the plant helped reduce organic pollutants and protect downstream water quality.