Pilot investment: Reject-water treatment system in Tartu wastewater treatment plant
Tartu Waterworks Company is the second biggest municipal wastewater treatment plant in Estonia and one of the many WWTPs in the Baltic Sea Region where anaerobic digestion of sludge is applied. There, a full-scale deammonification technology was developed and installed with regard to demonstrate in-situ start-up of deammonification without external seed.