Removal of dissolved and colloidal silica
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United States of America Patent
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-
Jul 9, 2002
Grant Date -
N/A
app pub date -
Aug 25, 2000
filing date -
Aug 25, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Small amorphous silica particles are used to provide a relatively large surface area upon which silica will preferentially adsorb, thereby preventing or substantially reducing scaling caused by deposition of silica on evaporative cooling tower components, especially heat exchange surfaces. The silica spheres are contacted by the cooling tower water in a sidestream reactor, then separated using gravity separation, microfiltration, vacuum filtration, or other suitable separation technology. Cooling tower modifications for implementing the invention process have been designed.
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