With more than 15 years of experience in sustainable fish farm engineering, VIQON Water Solutions serves as link between aquaculture initiatives and the realization of projects, and has unique expertise in integrated denitrification based on fish faeces in Recirculating Aquaculture Systems (RAS).

Engineering is always based on proven practice. New developments that have a positive effect on sustainability, investment level or production costs are tested first, before implemented. VIQON gives support during the realization process, ranging from finding the right suppliers/contacts to project and process management.

Denitrification and water usage reduction

VIQON was founded in 2010 and has since then realized projects in Europe, North America, Africa and the Middle East. It has developed a unique denitrification system that enables fish farmers to reduce water usage with more than 90%, a feature which gives farmers the opportunity to develop aquaculture projects in regions with limited water supply.

Being one of the few companies worldwide specialized in manure based denitrification on a commercial scale, VIQON has also developed a denitrification technique called DENOX. The DENOX system is a continuous water treatment technique based on active sludge. For this technique VIQON developed a new type of filter (membrane flow filter) to separate sludge from the cleaned water without using polymers or flocculants. The cleaned effluent from the DENOX system can be reused in the fish farm, reducing water usage with more than 90%.


  • Systems & equipment
  • Service and training
  • Engineering
  • Hatchery & production

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