Langenegg Wastewater Treatment Plant, Müselbach, Vorarlberg

The Langenegg wastewater treatment plant is located in Müselbach, a locality in the municipality of Langenegg, Vorarlberg, Austria. This facility serves a population of 2,588 and is part of the region's municipal wastewater infrastructure. The plant employs advanced treatment processes, meeting high standards for effluent quality. With a designed capacity of 3,175 cubic meters per day and an average discharge volume of 246.58 cubic meters per day, the plant operates well below its capacity. As an Austrian facility, it complies with the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The treated effluent is discharged into local watercourses that drain into the Rhine River basin, ultimately reaching the North Sea. The plant plays a key role in protecting the region's aquatic ecosystems and maintaining water quality in the sensitive Alpine foreland environment.

The plant discharges into small streams that feed the Bregenzer Ach river, a tributary of Lake Constance (Bodensee). Lake Constance is a major drinking water reservoir for the region and supports diverse aquatic life. The advanced treatment ensures minimal nutrient loading, protecting the lake from eutrophication and preserving its ecological balance.