Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Deodorizing
Patent
1997-07-31
1999-11-23
Warden, Sr., Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Deodorizing
422 4, 422123, 422306, 422900, 210104, 423210, 423477, 424661, 424665, A61L 914
Patent
active
059894970
ABSTRACT:
A process and apparatus are provided for deodorizing malodorous solids, liquids, and/or gases by contacting them with a mist of an aqueous deodorizing solution consisting of an alkali metal or alkaline earth metal chlorite, buffering agent(s), water, and optionally an alkali metal or alkaline earth metal chlorate and/or an alkali metal alkaline earth metal chloride. The preferred alkali metal is sodium. The deodorizing solution contains available chlorine dioxide and has a pH of about 8.5-9.5. In the process a concentrated solution of the deodorizing solution is diluted and mixed with water and misted into or onto the substance(s) to be deodorized, for example, the sewer gases from a sewage lift station. The apparatus consists of a rotameter which measures the amount of the concentrated deodorizing solution introduced into an eductor for dilution in a passing water stream which is then transported to spray nozzles for misting the malodorous substance(s). Preferably, a timer or monitor is incorporated so that the apparatus can be operated intermittently or continuously and the amounts of the oxidizing agents supplied can be varied.
REFERENCES:
patent: 3337455 (1967-08-01), Wilson et al.
patent: 3355019 (1967-11-01), Mitchell
patent: 3641821 (1972-02-01), Neuberger et al.
patent: 3696029 (1972-10-01), Walker
patent: 3804253 (1974-04-01), Wellman et al.
patent: 3923955 (1975-12-01), Fattinger
patent: 3975284 (1976-08-01), Lambert
patent: 4250144 (1981-02-01), Ratigan
patent: 4731193 (1988-03-01), Mason et al.
patent: 4776409 (1988-10-01), Manchak, Jr.
patent: 4823826 (1989-04-01), Sacco
patent: 4844874 (1989-07-01), deVries
patent: 4889654 (1989-12-01), Mason et al.
patent: 5006326 (1991-04-01), Mayurnik et al.
patent: 5039423 (1991-08-01), Kelley
patent: 5200171 (1993-04-01), Ratcliff
patent: 5232584 (1993-08-01), Wang et al.
patent: 5294307 (1994-03-01), Jackson
patent: 5348734 (1994-09-01), Ratcliff
patent: 5389384 (1995-02-01), Jooste
patent: 5407656 (1995-04-01), Roozdar
patent: 5447551 (1995-09-01), Huestis et al.
patent: 5496730 (1996-03-01), Teramachi
patent: 5547584 (1996-08-01), Capehart
patent: 5738840 (1998-04-01), Richter
S.L. Sarkar et al., "Concrete Deterioration Depth Profile Determination in Lift Station", Proc. Int. Conf. Cem. Microsc. 1996, 18th, 255-271 (Eng.)--Chemical Abstracts 125:17340h.
Katz, et al., "Disinfection of effluent by combinations of equal doses of chlorine and chlorine dioxide added simultaneously over varying contact times", Water Res. 28, 10 pp. 2133-2138 (1994)--Pollution Abs. 214474 95-03471.
Dernat, M. et al., "Water Management in Coastal Areas", Water. Sci. Technol. 25, 12, pp. 145-154 (1992)--Pollution Abs. 190916 93-03865.
Anonymous, "Treatment of industrial effluents", Effluent and Water Treatment Journal pp. 15-19 (Aug. 1979) Dialog-Pollution Abs. 069310 80-06264.
Yakovlev S.V., "The current state and perspective development and improvement of sewage in the USSR", Vodosnabzhenie I Sanitarnaia Tekhnika 3 pp. 5-7 (1979)--Pollution Abs. 066459 80-03409.
Rauh, J.S., "Disinfection and oxidation of wastes by chlorine dioxide", Journal of Environmental Sciences, 22, 2. pp. 42-45 (Mar.-Apr. 1979)--Pollution Abs. 064909 80-01856.
Kawata K., et al., "The search for effective wastewater disinfectants", Water Sewage Works, Ref. No. R-107-R-113 (1979)--Pollution Abs. 964881 80-01828.
Sussman, S. et al., "Chlorine dioxide is an attractive treatment", Water Sewage Works, Ref. No. R-120-R-121 (1979)--Pollution Abs. 064720 80-01667.
Serper, "Odor Control Systems for Solid Waste Facilities: Review and Selection", Solid Wastes Management Refuse Removal Journal 21, 5, pp. 22-24, 28, 31 (1978)--see p. 1, lines 18-22.
Tollefsrud, "Hypochlorite Kills Lift Station Odor", Water Sewage Works 126, 1, p. 78 (1979)--see p. 1, lines 26-29.
Tomar et al., "Water, Air, Soil Pollution" 81 3-4, 385-399 (1995)--Chemical Abstracts 123:122054Z.
Kelley, Esq. Margaret B.
Moazzam Fariborz
Warden, Sr. Robert J.
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