Abstract
Hokuetsu Niigata Mill started up the new coated paper machine (PM 8) in July 1998. To reduce the purchase of market hardwood pulp for PM 8 and other upgraded machines, the increase of pulp production capacity and the modernization of the pulp plant were planned and carried out before PM 8 was started up.
This new pulp plant introduced ECF bleaching with D0-EP-DnD as a sequence. One of the most important thing was to reduce the use of water for this modernization.
This article describes some instances of water saving at the pulp plant in Niigata mill.
