Water authority “De Dommel” asked Wetlantec to come up with a design for the final polishing of the effluent of their waste water treatment plant in Hapert. This installation would have to remove the final traces of nutrients, like carbon hydrates and Ammonium from the treated water.

Wetlantec constructed a specific wetland for this purpose, that has been in operation since 2001.

This shows that biological effluent polishing can be very cost effective and efficient.