Bleaching and dyeing; fluid treatment and chemical modification – Fluid treatment – Manipulation of liquid
Patent
1989-09-25
1990-11-13
Coe, Philip R.
Bleaching and dyeing; fluid treatment and chemical modification
Fluid treatment
Manipulation of liquid
D06F 4308
Patent
active
049699261
ABSTRACT:
Both an apparatus and method for water washing garments and removing radioactive contaminates therefrom without the generation of liquid effluents is disclosed herein. The apparatus comprises a washing machine unit having a wash water inlet, a rinse water inlet and an outlet conduit, and a hydraulically closed wash water system. The was water system in turn includes a reservoir of filtered and demineralized water connected to the wash water inlet, a particulate filter unit connected to the outlet conduit for removing particulate impurities from the wash water discharged through the conduit, and a water polisher connected between the particulate filtration unit and the reservoir for supplying the reservoir with filtered and demineralized and chemically purified water. To conserve surfactants and suspension agents added to the wash water in the washing machine unit, the wash water system further includes a diverter conduit connected between the filtration unit and the wash water inlet of the washing machine unit. The apparatus further has a hydraulically closed rinse water system which likewise includes a particulate filtration unit, as well as a water polisher. The apparatus avoids the generation of radioactive liquid effluents by trapping substantially all of the radioactive nucleides in disposable, cartridge-type filter elements that are used in the filtration unit of the wash water system. Moreover, the use of polished water in both the wash and rinse water systems renders the resulting water wash more effective.
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Bonneau Arthur M.
Briggs William E.
Godfrey Larry E.
Jarvis, Sr. Thomas A.
Kirchner Matthew A.
Coe Philip R.
Westinghouse Electric Corp.
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