Overview
Ratten wastewater treatment plant in St. Kathrein am Hauenstein, Steiermark, Austria, serves about 1,930 people with advanced treatment. It discharges 862 m³/day and has a designed capacity of 4,000 m³/day.
Ratten wastewater treatment plant is located in St. Kathrein am Hauenstein, a municipality in the Bezirk Weiz district of Steiermark, Austria. The plant serves a population of approximately 1,930 people, placing it in the small agglomeration category under Austrian and EU regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for sensitive areas. With a designed capacity of 4,000 m³/day and an average discharge volume of 862 m³/day, the facility operates well within its capacity, ensuring effective treatment of municipal wastewater. The treated effluent is discharged into local watercourses that ultimately drain into the Danube River basin, contributing to the protection of the Black Sea ecosystem. The plant's advanced treatment helps reduce nutrient loads, supporting water quality in downstream rivers and lakes.
Environmental context
The plant discharges into small streams that feed into the Raab River, a tributary of the Danube. The Danube flows into the Black Sea, making the plant part of a large international watershed. The region's water bodies support diverse aquatic life, including fish species such as brown trout and grayling. Advanced treatment at this plant helps minimize eutrophication risks in downstream waters.
Frequently asked questions
The Ratten wastewater treatment plant is located in St. Kathrein am Hauenstein, in the Bezirk Weiz district of Steiermark, Austria.
The plant serves approximately 1,930 people, classifying it as a small agglomeration under EU wastewater treatment directives.
The treated effluent is discharged into local streams that flow into the Raab River, a tributary of the Danube, ultimately reaching the Black Sea.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, meeting stringent requirements for sensitive areas under the EU Urban Waste Water Treatment Directive.
The plant has a designed capacity of 4,000 m³/day, with an average discharge volume of 862 m³/day, indicating it operates well below its maximum capacity.
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