Industrie Anzeiger: How a start-up keeps cooling towers clean without chemicals

Kühlwasserbehandlung ohne Chemie

12. September 2025

To prevent the growth of bacteria and algae in cooling towers, industry typically relies on harmful biocides. The Heidelberg-based start-up blue activity is taking a different approach: using microorganisms and biopolymers, it replaces environmentally harmful substances while simultaneously improving efficiency and operational safety. The young company is supported by PFIF.

Read more

blue activity Gründer Michael Simon und Lars Havighorst

17. March 2026

StartingUp: blue activity secures €8.5 million for biocide-free cooling water treatment

blue activity - Mikrobiologie statt Gefahrstoffe

26. May 2025

blechnet: Cooling water treatment using microbiology instead of hazardous chemicals

blue activity Handelsblatt

30. January 2025

Handelsblatt: Sustainable revolution in cooling water treatment