Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact with electrical or electromagnetic...
Patent
1991-01-22
1994-07-05
Alexander, Lyle A.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using direct contact with electrical or electromagnetic...
422 21, A61L 200
Patent
active
053265300
ABSTRACT:
An energy-efficient method for killing noxious biological organisms (bacteria, insects, etc.) in contaminated materials ranging from liquid, semi-liquid, and solid foods pharmaceuticals and hospital wastes comprises passing the contaminated material through an exposure chamber; screening, comminution, addition of fluid or foam, limited heating, or other pretreatment steps may be required. As it flows through the exposure chamber the contaminated material is subjected to a nonuniform, high-intensity electric field; in that chamber, excessive current flows, including arcing and current "streamers", are suppressed by limiting the current density. The amplitude of the applied current density and the electric field in the exposure chamber are controlled, in accordance with the conductivity and/or dielectric constant of the contaminated material, so that the electric field intensity is of the order of 3,000 volts/centimeter or more.
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Alexander Lyle A.
IIT Research Institute
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