Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1992-10-15
1993-08-17
Silverman, Stanley S.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210712, 210727, 210731, 210734, 210725, 210930, 134 38, 427331, 95196, 95197, C02F 156
Patent
active
052365980
ABSTRACT:
A novel method of treating circulating water containing over-sprayed, water-borne paint, such as in a paint spray booth operation, comprises adjusting the alkalinity of the paint spray booth water to between about 20 and 600 ppm, on a calcium carbonate basis, by adding a designated alkalinity source thereto, adding a cationic potato starch to the water, contacting the over-sprayed, water-borne paint with the alkalinity-adjusted paint spray booth water after addition of the cationic potato starch, adding an effective amount of a polymer floccing agent to the paint spray booth water, and removing resulting sludge from the paint spray booth water.
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patent: 4935149 (1990-06-01), Morse
Hunter Wood E.
Morse Lewis D.
Calgon Corporation
Caruso C. M.
McCarthy Neil M.
Mitchell W. C.
Silverman Stanley S.
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