Pall Corporation

Dana E Gingrich

Donald H White, Jr

John D Miller

P Glenn Barkley

John P Miller

The present invention provides a method of treating wastewater containing particulate matter and free oil, which method comprises removing free oil from the wastewater, passing the wastewater through a first filtration medium having an effective pore rating of about 200 .mu.m or less, subjecting the wastewater to dynamic filtration utilizing a second filtration medium having an effective pore rating of about 5 .mu.m or less, and contacting the wastewater with an adsorbent bed to form a purified water stream. The present invention also provides an apparatus which can be used to carry out the present inventive method.

Fluid treatment process

A method of treating wastewater by passing wastewater into a dynamic microfiltration assembly to form a first concentrate stream and a filtrate stream and then passing the filtrate steam into an ultrafiltration assembly to form a second concentrate stream and a purified water stream.

Fluid treatment process using dynamic microfiltration and ultrafiltration

A process and apparatus for treating contaminated water involving passing water containing contaminants as a stream through a filter to remove the contaminants and form a purified water stream, directing the purified water stream to an effluent discharge outlet and accumulating a portion of the purified water in a reservoir under pressure, preferably through action of a trapped air pocket in the reservoir, and regenerating the filter by using the purified water in the reservoir to back-flush the filter.

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Homer, NY, United States of America

Dana E Gingrich