AP-­-11 Pulp and Paper Whitewater Heating ©ProSonixLLC2014 AP-11 0110 Application: Whitewater Heating White water is a fine particle slurry used throughout the papermaking process. Its name derives from fine fiber particles in the water that give it a milky white appearance. White water drains from the paper stock into pit below the paper machine and is used for a variety of uses in the papermaking process. The primary use of whitewater in the paper mill is stock dilution at the wet end of the paper machine. Accurate temperature control of the stock is critical to achieve optimum machine speeds, high quality paper, and lowest operating costs. The optimum operating temperature of the stock is typically 115-140°F. Consistent stock temper

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