A Study of Oil/Water Separation in Corrugated Plate Separators

[+] Author and Article Information
R. A. Jaisinghani

Filtration Research, Corporate Research Dept., Nelson Industries, Inc., Stoughton, WI 53589

G. S. Sprenger

Corporate Research Dept., Nelson Industries, Inc., Stoughton, WI 53589

J. Eng. Ind 101(4), 441-448 (Nov 01, 1979) (8 pages) doi:10.1115/1.3439534 History: Received April 10, 1979; Online July 15, 2010


Simplified trajectory calculations and small scale experiments suggest that the mechanisms of oil separation in corrugated plates are similar to those of other plate separators and that the radius of curvature is not an important design parameter. Bouyancy force and flow fields control oil drop rise, while drop-interface coalescence should be important when plates are completely oil covered. Results suggest that interdrop coalescence, due to the periodically constricted and expanding flow, is not an important mechanism. Large scale (3–6 gpm) tests show that with light influent oil, corrugated plate separators perform better than simpler baffled vessels. With viscous, low interfacial tension oils, a simpler baffled separator performs better than the corrugated stack separator. This is probably due to viscous oil blockage in the plates and formation of a “foamy” oil-water mixture of high specific gravity.

Copyright © 1979 by ASME
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