Liquid purification or separation – Processes – Utilizing electrical or wave energy directly applied to...
Patent
1991-07-01
1993-07-20
Dawson, Robert A.
Liquid purification or separation
Processes
Utilizing electrical or wave energy directly applied to...
34 1P, 34 1T, 210180, 210770, 210774, F26B 3347
Patent
active
052290107
ABSTRACT:
An apparatus and method for the efficient removal of hazardous and nonhazardous volatile and semi-volatile organic materials from contaminated materials includes an evaporation/vacuum heating chamber that communicates with a microwave generator, a vacuum pressure system, a contaminated material in-feed system, and a residue removal system. The evaporation/vacuum heating chamber is fed with successive batches or a continuous supply of contaminated material and subjects the contaminated material to microwave energy and vacuum pressure to draw off volatile and semi-volatile material from the contaminated material as vapor and reduce the contaminated material to a dry residue. The vapors are drawn from the chamber by the vacuum pressure system and are condensed and collected. The dried material residue is removed from the chamber by the residue removal system and is also collected for later disposal or reuse. The apparatus operates continuously or in a batch mode, with contaminated materials being fed into the apparatus simultaneously with the distilled vapor and dried residue being removed from the chamber.
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Dawson Robert A.
Kim Sun Uk
Progressive Recovery, Inc.
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