Product Description

ANAMMOX: Sustainable nitrogen removal

The ANAMMOX process is a very cost-effective and sustainable way of removing ammonium from effluents and ammonia from waste gas. Compared to conventional nitrification/denitrification savings on operational costs can reach up to 60%, while CO2 emission is reduced.

The ANAMMOX conversion is an elegant shortcut in the natural nitrogen cycle. Anammox bacteria convert ammonium (NH4+) and nitrite (NO2–) into nitrogen gas. Paques developed the process for commercial purposes in cooperation with Delft University of Technology and the University of Nijmegen. Since the first full-scale plant started up in 2002, many other ANAMMOX plants were implemented worldwide.


  • Proven technology, > 18 years operational experience
  • > 65 ANAMMOX references worldwide
  • Small footprint
  • Robust system, handling high loading variations
  • Saving on operational costs up to 60%
  • Savings on excess sludge production
  • Easy process control in one single continuously operated reactor unit
  • No addition of organic carbono source (methanol) required.

The ANAMMOX process explained:

For more information, please visit our website at:

Contact us:
North America
Burlington (MA), USA
t + 1 781 362 4636


ANAMMOX – The Netherlands
Sidestream reject water & MAD biosolids
200 kg N/day

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