Liquid purification or separation – Processes – Chemical treatment
Patent
1989-09-18
1990-05-29
Hruskoci, Peter
Liquid purification or separation
Processes
Chemical treatment
210755, 210756, 210758, 210764, 435262, C02F 176
Patent
active
049293656
ABSTRACT:
The present invention provides a method for the removal of biofilms composed of microorganisms from submerged surfaces in an aqueous medium comprising contacting said biofilm with an aqueous stabilized chlorine dioxide and at least one nutrient source, wherein said nutrient source is provided in an amount effective to result in the generation of one or more acidic compounds by said biofilm, and the aqueous stabilized chlorine dioxide is provided in an amount sufficient, when activated by said one or more acidic compounds generated by said microorganisms, to kill a sufficient number of microorganisms in the biofilm to result in the biofilm's removal. Optionally a second biocide may be provided with or after the nutrient source to kill any microorganisms released from the biofilm during its removal and thereby inhibit the reformation of the biofilm.
REFERENCES:
patent: 3082146 (1963-03-01), Wentworth et al.
patent: 3164552 (1965-01-01), Wolfson
patent: 3178465 (1965-04-01), Huba et al.
patent: 3226210 (1965-12-01), Baptist et al.
patent: 3585147 (1971-06-01), Gordon
patent: 4419248 (1983-12-01), Costerton
patent: 4499077 (1985-02-01), Stockel et al.
Annual Review of Microbiology, 43,435-64, 1987, J. W. Costerton et al., "Bacterial Biofilms in Nature and Disease".
Oil & Gas Journal, Mar. 8, 1982, pp. 253-264, I. Ruseska et al., "Biocide Testing Against Corrosion-Causing Oil-Field Bacteria Helps Control Plugging".
Clark James B.
Langley Deborah E.
Hruskoci Peter
Phillips Petroleum Co.
Shideler Krisanne
Woodrow Hal Brent
LandOfFree
Biofilm control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Biofilm control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biofilm control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-519257