Heat exchangers sludge-sludge digester

Heat exchangers for energy recovery in a sludge digester installation

Three heat exchangers recover th heat from digested sludge to pre-heat incoming raw sludge. Temperature of raw sludge is increased in two steps from 23°C to 71°C. Digested sludge temperature is cooled down from 71°C to 49°C.

More information on our Lackeby heat exchangers.