Abstract:
The application describes synergistic microbicidal compositions comprising: 2,2-dibromomalonamide and an oxidizing biocide selected from the group consisting of: monochloramine, bromochlorodimethylhydantoin, hypobromite ion or hypobromous acid, hydrogen peroxide, dichloroisocyanurate, trichloroisocyanurate and chlorine dioxide and a method for controlling microorganism growth in an aqueous or water-containing system.
Abstract:
Provided is a high-throughput method for determining the biocidal efficacy of biocidal agents against anaerobic organisms. The method includes the steps of: providing one or more anaerobe samples in a first set of multiple receptacles accessible to multi-channel pipettes; providing one or more biocidal samples at known concentration(s) in a second set of multiple receptacles accessible to multi-channel pipettes; forming mixtures of the one or more biocidal samples and the anaerobe samples via a multi-channel pipette; incubating the mixtures so as to allow reaction between the biocidal samples and the anaerobe samples; determining each of the one or more biocidal samples' killing (biocidal) effectiveness against the anaerobes at selected time interval(s), wherein each step, except for the step of providing one or more biocidal samples, is conducted under anaerobic conditions.
Abstract:
Provided are biocidal compositions comprising: tris (hydroxymethyl) nitromethane; and a brominated nitroalkanol compound of formula I: wherein R1, R2, and R3 are as defined herein. The compositions are useful for controlling microorganisms in aqueous or water-containing systems.
Abstract:
Compounds and methods are provided for controlling microorganisms in water systems having a pH of 5 or greater. The compounds are of the formula I: wherein X, R and R1 are as defined herein.
Abstract:
Provided are biocidal compositions comprising glutaraldehyde and a compound selected from the group consisting of 1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane; tris(hydroxymethyl)-nitromethane; and a hexahydrotriazine compound. The compositions are useful for controlling microorganisms in aqueous or water-containing systems.
Abstract:
The present invention provides methods and formulations for reducing or inhibiting increase in the concentration of microbes in a water-based fluid. The methods and formulations of the present invention use an oxazolidine compound and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine. The methods and formulations of the present invention can be useful in treating water contaminated with aerobic or anaerobic bacteria in oilfield, natural gas field, and other industrial applications.
Abstract:
The application describes synergistic microbicidal compositions comprising: 2,2-dibromomalonamide and an oxidizing biocide selected from the group consisting of: monochloramine, bromochlorodimethylhydantoin, hypobromite ion or hypobromous acid, hydrogen peroxide, dichloroisocyanurate, trichloroisocyanurate and chlorine dioxide and a method for controlling microorganism growth in an aqueous or water-containing system.
Abstract:
The present invention provides methods and formulations for reducing or inhibiting increase in the concentration of microbes in a water-based fluid. The methods and formulations of the present invention use an oxazolidine compound and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine. The methods and formulations of the present invention can be useful in treating water contaminated with aerobic or anaerobic bacteria in oilfield and other industrial applications.
Abstract:
A biocidal composition comprising 2,2-dibromomalonamide and a surface active biocide, and its use for the control of microorganisms in aqueous and water-containing systems.
Abstract:
The present invention provides methods and formulations for reducing or inhibiting increase in the concentration of microbes in a water-based fluid. The methods and formulations of the present invention use glutaraldehyde and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine, in a ratio of hydroxymethyl-substituted phosphorus compound to glutaraldehyde in the range of about 2:1 to about 7:1, or about 3.5:1 to about 7.5:1. The methods and formulations of the present invention can be useful in treating water contaminated with aerobic or anaerobic bacteria in oilfield and other industrial applications.