StAndra Wastewater Treatment Plant, Apetlon, Burgenland, Austria

StAndra is a wastewater treatment plant located in Apetlon, a municipality in the Burgenland state of Austria. The plant serves a population of 1,739 and operates with advanced treatment processes, ensuring high-quality effluent. Its designed capacity is 2,400 cubic meters per day, with an average discharge volume of 358.94 cubic meters per day. As an advanced treatment facility, StAndra goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent Austrian and EU standards. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. For a small agglomeration of this size, the directive mandates appropriate treatment to protect receiving waters. The plant's effluent is discharged into the local watershed, which ultimately drains into the Neusiedler See basin. This shallow steppe lake is a unique ecosystem and a UNESCO-designated cultural landscape, supporting diverse birdlife and aquatic habitats. The advanced treatment helps preserve water quality in this ecologically sensitive region.

StAndra's treated effluent flows into the local drainage network within the Neusiedler See basin, a shallow endorheic lake on the Austrian-Hungarian border. This unique steppe lake ecosystem is highly sensitive to nutrient inputs, supporting extensive reed beds and migratory bird populations. The advanced treatment at StAndra helps prevent eutrophication and maintains the ecological balance of this important wetland area.