Estonian Cell

Estonian Cell

High rate anaerobic effluent treatment for AS Estonian Cell Pulp mill in Kunda, Estonia

AS Estonian Cell is the main pulp mill in Estonia. Due to investment in a brand new pulp dryer the owners decided at the same time to invest in a new anaerobic effluent treatment plant for the COD-rich effluent prior to the existing activated sludge waste water treatment plant. The produced biogas replaces fossil natural gas as the main energy source for the dryer. The new high loaded anaerobic plant has a capacity of 8 000 m3/day and a load of 100 ton COD/day. Purac was contracted in the beginning of 2013 to design and supply the new plant.