Three pasteurisation systems made by Landia are helping Shropshire Energy to produce 2.5MW of renewable energy at its anaerobic digestion plant in Littleport, Cambridgeshire.
Designed as a freestanding unit that heat-treats organic waste so that the product can be used as an energy-efficient substrate, each 3 x 8cu m pasteuriser is fitted with an 11kW Landia chopper pump and a PODTR-I 7.5kW side-entry propeller mixer.
Organic waste received at 40°C is liquefied then heated to 70°C, before being pumped back out to a buffer tank and then separator. The finished digestate (8% dry solids) is PAS110-approved for use as a nutrient-rich fertiliser.
Surplus electricity is fed back to the national grid.