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Graphics Interchange Format  |  2000-05-25  |  10.2 KB  |  677x356  |  1-bit (2 colors)
   ocr: In the direct treezing method used to remove salt from overview ofthe seawater, the water itself acts as the refrigerant. In this process process, there are essentially four steps: pressurization and evaporation, freezing, separation, and discharge of the briny portion of the seawater. The process begins as Step 7 seawater enters a heat exchanger that cools the incoming water. This cooled seawater then enters the crystallizer, orep 2 or freezing tower, which is kept at a pressure of 3 to 4 mLIIL Hq, - equivalent to about 0.005 atmospheres - AS the water is 3 sprayed into the crystallizer, evap ...