Joseph D Gavin

US Patent:

59320915, Aug 3, 1999

Filed:

Jan 22, 1998

Appl. No.:

9/012016

Inventors:

Kevin Todd Tompkins - University Park MD
Jerome S. Stefanko - Washington DC
Brian L. Owsenek - Burtonsville MD
Lawrence W. Tomlinson - Pasadena MD
Joseph A. Gavin - Glen Burnie MD

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

B01D 6122
B01D 6120

US Classification:

210 97

Abstract:

The effluent outflow from a shipboard oil/water separator is further reduced in oil content by passage through ultrafiltration membranes arranged in series as an added downstream treatment prior to overboard discharge. Effluent from the oil/water separator is buffered by delivery through a feed pump and use of a recirculation pump through which such downstream ultrafiltration treatment is subject to conditional flow control as well as periodic backflush cleansing of the filter membranes.