AwardedCHEGoods
Lieferung von Eisen Lösung zur Fällung von Phosphor auf ARA
- Published
- Published 17 November 2025
- Deadline
- Closed 9 January 2026
Overview
The City of Winterthur's wastewater treatment plant (ARA) has awarded a contract to Aregger Chemie AG for the supply of iron solution used in phosphorus precipitation, with a contract value of 1,609,220 CHF. The procurement covers approximately 160 tonnes of molar iron needed for chemical treatment to reduce phosphate levels in wastewater processed from over 140,000 residents and commercial users across multiple municipalities.
Key details
- Country
- CHE
- Status
- Awarded
- Category
- Goods
- Procedure
- Open
- Published
- 17 November 2025
- Deadline
- Closed
Chemical products
Award outcome
- Awarded value
- CHF 1,609,220
- Award date
- 23 June 2026
- Contract period
- 1 May 2026 → 30 April 2028
- DE_Aregger Chemie AG
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Notice history
Every published notice in this contracting process, newest first.
Contract Award Notice
25 June 2026
Contract Notice
17 November 2025
Contracting authority
Stadt Winterthur, Departement Technische Betriebe Stadtwerk Winterthur, Finanzen und Dienste
Procuring entityWinterthur, CHE
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