Whatman Gmbh

Parker-hannifin Corporation

Paul E Rebe

Kenneth A Perrotta

John J Ronan

Provided is a microbial test unit for detecting microbes in a compressed gas. The microbial test unit includes a decompression region and a sampling region in fluid communication with the decompression region and separated from the decompression region by a plate. The decompression region and the sampling region define a flow path. An inlet communicates with the decompression region such that compressed gas entering the decompressing region is incident on the plate for effectuating decompression of the gas prior to the gas passing into the sampling region. The microbial test unit may be used in conjunction with a growth medium substrate to form a microbial test system. The microbial test unit provides the ability to test compressed gas directly input to the unit due to positive pressure from the compressed gas pushing the microbes onto the microbial growth substrate.

Compressed gas microbial test unit

An oil-water separation method to separate oil-contaminated water into clean, filtered water for use. The method comprises filtering prefiltered, coalesced oil-water in an oleophobic depth-type filter.

Method of oil-water separation

An oil-water separator system and method to separate contaminated oil and water into clean water and free coalesced oil for collection and removal. The system includes a process tank for the oil and water, a pump to pump the oil and water through first and second stage oil-coalescing filters and through a full depth, fibrous filter under back pressure to provide filtered clean water of selected purity; typically, less than 20 ppm. The coalesced and filtered oil-water is returned and recycled to the process tank wherein a free coalescing oil layer forms on the surface, which free coalesced oil is removed by a belt skimmer for collection and removal.

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Bow, NH, United States of America

Paul E Rebe