Liquid purification or separation – Processes – Utilizing electrical or wave energy directly applied to...
Patent
1990-11-01
1992-07-14
Silverman, Stanley S.
Liquid purification or separation
Processes
Utilizing electrical or wave energy directly applied to...
210763, 210758, C02F 130, C02F 136
Patent
active
051300311
ABSTRACT:
A process for efficiently removing halogenated organic compounds from contaminated aqueous liquids is described which comprises contacting the contaminated liquid with a photocatalyst while simultaneously exposing the contaminated liquid to both acoustic energy and light energy to efficiently decompose the halogenated organic compounds.
REFERENCES:
patent: 2717874 (1955-09-01), Verain
patent: 3672823 (1972-06-01), Boucher
patent: 4008136 (1977-02-01), Williams
patent: 4013552 (1977-03-01), Kreuter
patent: 4076617 (1978-02-01), Bybel et al.
patent: 4477357 (1984-10-01), Sittenfield
patent: 4751005 (1988-06-01), Mitsui et al.
patent: 4764278 (1988-08-01), Chou et al.
patent: 4849114 (1989-07-01), Zeff et al.
patent: 4857204 (1989-08-01), Joklik
patent: 4861484 (1989-08-01), Lichtin et al.
patent: 4863608 (1989-09-01), Kawai et al.
patent: 4892712 (1990-01-01), Robertson et al.
patent: 4906387 (1990-03-01), Pisani
patent: 4990260 (1991-02-01), Pisani
patent: 5026484 (1991-06-01), Juvan
Barbeni, Massimo, et al., "Photodegradation of 4-Chlorophenol Catalyzed by Titanium Dioxide Particles", Nouveau journal De Chimie, vol. 8, 1984, pp. 547-550.
D'Oliveira, Jean-Christophe, et al., "Photodegradation of 2- and 3-Chlorophenol in TiO.sub.2 Aqueous Suspensions", Environ. Sci. Technol., vol. 24, No. 7, 1990, pp. 990-996.
Ollis, David F., "Contaminant Degradation in Water", Environ. Sci. Technol., vol. 19, No. 6, 1985, pp. 480-484.
Sierka, Raymond A., et al., "Catalytic Effects of Ultraviolet Light and/or Ultrasound on the Ozone Oxidation of Humic Acid and Trihalomethane Precursors", Ozone Science & Engineering, vol. 7, 1985, pp. 47-62.
Zepp, Richard G., "Factors Affecting the Photochemical Treatment of Hazardous Waste", Environ. Sci. Technol., vol. 22, No. 3, 1988, pp. 256-257.
Nessler Cynthia L.
Silverman Stanley S.
SRI - International
Taylor John P.
LandOfFree
Method of treating aqueous liquids using light energy, ultrasoni does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of treating aqueous liquids using light energy, ultrasoni, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of treating aqueous liquids using light energy, ultrasoni will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-332944