Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance
Patent
1991-04-26
1993-03-02
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using disinfecting or sterilizing substance
423477, 423DIG18, 588205, 241 17, 241 22, 241DIG38, A01N 5900
Patent
active
051907259
ABSTRACT:
An infectious waste, a solid chlorite salt, a solid acid and a preheated aqueous solvent are mixed in a treatment volume. At least a portion of the chlorite salt and acid is dissolved in the preheated aqueous solvent incident to mixing and is reacted to form a treatment solution containing a chlorine dioxide disinfectant and a byproduct acid salt. The infectious waste is contacted with the chlorine dioxide in the treatment solution which attacks and destroys the infectious constituents of the waste, thereby decontaminating the waste. Upon dewatering, the decontaminated waste is suitable for landfilling. Process control is exercised by controlling the temperature of the aqueous solvent. A solvent temperature is selected which optimizes both the chlorine dioxide concentration in the treatment solution and the reactivity of the chlorine dioxide with the infectious constituents. Continuous monitoring of the chlorine dioxide concentration in the treatment solution enables adjustment of the solvent preheat temperature to optimal values in accordance with the dynamics of the treatment system.
REFERENCES:
patent: 2791324 (1957-05-01), Knoop et al.
patent: 3279511 (1966-10-01), Griffin
patent: 4084747 (1978-04-01), Alliger
patent: 4256256 (1981-03-01), Meyers
patent: 4504442 (1985-03-01), Rosenblatt et al.
patent: 4533691 (1985-08-01), Khalil et al.
patent: 4578185 (1986-03-01), Wilson et al.
patent: 4614267 (1986-09-01), Larkin
patent: 4671882 (1987-06-01), Douglas et al.
patent: 4731193 (1988-03-01), Mason et al.
patent: 4776455 (1988-10-01), Anderson et al.
patent: 4809915 (1989-03-01), Koffsky et al.
patent: 4861514 (1989-08-01), Hutchings
patent: 4889654 (1989-12-01), Mason et al.
patent: 4917238 (1990-04-01), Schumacher
patent: 4925645 (1990-05-01), Mason
patent: 4945992 (1990-08-01), Sacco
Block, Seymour S., Disinfection, Sterilization, and Preservation, 1983, pp. 755-759, 797, and 822-825, 542-544.
Whitten, Kenneth W. and Gailey, Kenneth D., General Chemistry, 2nd Ed., "Chemical Kinetics", (1984) pp. 478-490.
Frain John P.
Meijer Robert S.
Collins Laura E.
Warden Robert J.
Winfield Industries
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