Press Section Water Applications

Press water usually contains felt hairs and other things not wanted in the paper machine system and they must be removed before the water can be reused. The system shown in the flow diagram has a WWS filtering the press water to remove the objectionable solids and allows the clean purge water to be recycled. The solids can be disposed of as trash. This system can be expanded to handle other water not used for pulp dilution, such as pump scale water and heat exchanger water. A 100 micron or 150 mesh screen is normally used.