Case study of an ultrafiltration plant treating bleach plant effluent from a pulp and paper mill
Bleach plant effluent is treated in the ultrafiltration plant at Stora Enso Nymblla pulp and paper mill. The plant is the largest of its kind in the world, with a total membrane area of 4800 m(2) (2900 m(2) on the softwood line and 1900 m(2) on the hardwood line) and a processing capacity of 400 m(3) bleach plant effluent per hour. The ultrafiltration plant has been in operation since 1995. The op