Waterleau New Energy, BE (Demonstration plant)
Plant description: Waterleau is an environmental services company in the fields of water, air and waste treatment as well as in new energy recovery. Waterleau New Energy is their biogas plant in Ieper. The biogas plant is co-digestion of 45% manure and 55% biological waste streams. It’s located in Western Flanders, a region characterised by intensive pig husbandry, and therefore has to cope with a manure surplus and stringent local fertilizing legislation.
Innovation: Waterleau New Energy hopes to investigate in the framework of SYSTEMIC if and ammonium stripping to make ammonium sulphate would be a better marketable product than the ammonia water they are producing now in their evaporator. Waterleau is also open for practical experience with membrane separation (reverse osmosis), especially aspects of fouling and which input streams could cause blocking of the membranes. Furthermore, they want to see if there are drying technologies available for drying the NPK concentrate from the evaporator.
Products & Benefits: The dried digestate is composted in Flanders and further exported to France. The concentrated liquid fraction is exported also outside Belgium as fertilizer and ammonium water is used as exhaust gas treatment.