ALTIKON Wastewater Treatment Plant, Altikon, Zürich, Switzerland

ALTIKON is a wastewater treatment plant located in Altikon, a municipality in the district of Winterthur, canton of Zürich, Switzerland. The plant serves a small population of 828 residents, reflecting its role in a rural community. It operates under Swiss water protection regulations, which align with the EU Urban Waste Water Treatment Directive for small agglomerations. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 1,383 cubic meters per day and an average discharge volume of 375.85 cubic meters per day, the plant operates well below its capacity, indicating sufficient headroom for current demand. Swiss regulations require secondary treatment for plants serving populations over 500, which ALTIKON meets. The treated effluent is discharged into a local watercourse that flows into the Thur River, a tributary of the Rhine. The Rhine ultimately drains into the North Sea. The plant plays a key role in protecting the local aquatic ecosystem, including the Thur River, which supports diverse fish populations and is an important corridor for migratory species.

ALTIKON's treated effluent enters a small watercourse that feeds into the Thur River, a major tributary of the Rhine. The Thur River flows through the canton of Zürich and eventually joins the Rhine near Schaffhausen. The Rhine then travels through Germany and the Netherlands before reaching the North Sea. The local watershed supports diverse aquatic life, including salmonid fish, and the plant's secondary treatment helps maintain water quality in this ecologically sensitive river system.