Overview
ARA Liedertswil is a secondary treatment plant serving 135 people in Liedertswil, Basel-Landschaft, Switzerland. It discharges 61.28 m³/day of treated wastewater into the local watershed.
ARA Liedertswil is a municipal wastewater treatment plant located in Liedertswil, a small village in the Basel-Landschaft canton of Switzerland. The plant serves a population of 135, reflecting its role in a rural, low-density community within the Waldenburg district. The plant provides secondary treatment, which is the standard biological treatment stage required under Swiss water protection legislation. Swiss regulations, aligned with the EU Urban Waste Water Treatment Directive, mandate secondary treatment for agglomerations of this size. The plant has a designed capacity of 317 m³/day, with an average daily discharge of 61.28 m³/day, indicating operational headroom. Treated effluent from ARA Liedertswil is discharged into local watercourses that drain into the Ergolz River, a tributary of the Rhine. The Rhine ultimately flows into the North Sea. The plant helps protect the sensitive aquatic ecosystems of the Rhine basin, which support diverse fish populations and serve as an important migratory corridor.
Environmental context
The plant discharges into small streams that feed the Ergolz River, part of the Rhine basin. The Rhine is a major European waterway supporting diverse aquatic life and providing drinking water for millions. The plant's secondary treatment reduces organic pollutants and nutrients, helping to maintain water quality in this ecologically sensitive region.
Frequently asked questions
ARA Liedertswil is located in Liedertswil, a village in the Bezirk Waldenburg of Basel-Landschaft canton, Switzerland.
The plant serves a population of 135, making it a small-scale facility for a rural community.
The plant discharges treated effluent into local streams that flow into the Ergolz River, a tributary of the Rhine River, which ultimately reaches the North Sea.
ARA Liedertswil provides secondary treatment, which is the standard biological treatment required under Swiss water protection laws for small agglomerations.
Switzerland's water protection legislation, aligned with the EU Urban Waste Water Treatment Directive, requires secondary treatment for agglomerations of this size. The plant complies with these standards to protect the Rhine basin.
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