Wastewater streams are often rich in nutrients such as nitrogen and phosphorus. Our nutrient recovery technologies unlock this potentially valuable nutrient source, which can be converted into ecologically friendly fertilisers and other uses.
NAS anammox technology
Many sectors produce highly polluted wastewater, with nitrogen being one of the main pollutants. Removing nitrogen can be very expensive.
NAS®, the innovative anammox technology developed by Colsen, is an energy-efficient wastewater treatment method based on anammox bacteria. This cost-saving technology is used for industrial and municipal wastewater treatment plants.
AMFER nitrogen recovery
In certain waste and wastewater flows, high quantities of nitrogen occur in the form of ammonium, such as in digestate or centrate produced by a digester, in manure processing flows or in industrial wastewater. In such cases, nitrogen recovery is more efficient and cheaper than nitrogen removal.
ANPHOS phosphate recovery
Phosphate is a crucial component of artificial fertilisers, but the main mining areas are being depleted, which makes phosphate recovery all the more important. That’s why we developed ANPHOS® technology.
Today, chemical addition in wastewater treatment is a convenient way to remove phosphate, but it also produces additional sludge, increasing operating costs. Capturing phosphate in a sub-stream by promoting struvite formation lowers those costs and creates a valuable product.