Abstract: Provided herein are methods of reducing microbial concentrations in water with a peracid disinfectant. The method can include the steps of measuring the quality of the water in real-time and dosing the water with a first dose of a peracid disinfectant; measuring the peracid disinfectant demand; and adding one or more subsequent doses of the peracid disinfectant. The subsequent peracid disinfectant dose can be controlled by a processor-based controller based on peracid disinfectant demand.

Abstract: Provided herein are methods and compositions for treatment of a subterranean wellbore that has become clogged with sludge deposits comprising a synthetic polymer and an oil tar.

Abstract: The present invention is directed to a method for the treatment of an environmental medium contaminated with arsenic, comprising treating such medium with an effective amount of persulfate and zero valent iron.

Abstract: The invention relates to anti-microbial compositons useful against a wide range of microoganisms undesirable on a wide variety of materials, including food, food contact and non-food contact surfaces, and surfaces in industrial, recreational, health care, and other institutional environments. More particularly, the anit-microbial compositions comprise peracetic acid in combination with a)citric acid or a salt and b) salicyclic acid or a slat in aqueous solution.

Abstract: A method of sterilizing a material, said method comprising the steps of: (a) introducing a solution comprising peroxyacetic acid into a hot gaseous stream to produce a peroxyacetic acid vapor; and (b) contacting such peroxyacetic acid vapor with the material to be sterilized.

Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.

Abstract: The present invention is directed to a method of oxidizing an organic compound present in soil, groundwater, process water or wastewater comprising contacting such organic compound with a persulfate and ferrous lactate.

Abstract: The invention relates to anti-microbial compositions useful against a wide range of microorganisms undesirable on a wide variety of materials, including food, food contact and non-food contact surfaces, and surfaces in industrial, recreational, health care, and other institutional environments. More particularly, the anti-microbial compositions comprise peracetic acid in combination with a) citric acid or a salt and b) salicylic acid or a salt in aqueous solution.

Abstract: A method of sterilizing a material, said method comprising the steps of: (a) introducing a solution comprising peroxyacetic acid into a hot gaseous stream to produce a peroxyacetic acid vapor; and (b) contacting such peroxyacetic acid vapor with the material to be sterilized.

Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.

Abstract: The present invention relates to a method of remediating an environmental medium which is contaminated with a halogenated organic contaminant and/or a heavy metal comprising treating such medium with an effective amount of zero valent iron particles and hydrolyzed feather meal.

Abstract: A method for removing nitrogen oxides in stationary source combustion flue gas streams includes introducing a reagent or a mixture comprising carbamide peroxide and water as a reducing agent.

Abstract: Aqueous well treatment fluid compositions with biocidal activity are disclosed comprising a polymer for modifying fluid viscosity in the aqueous fluid, an organic monocarboxylic peracid being present in an anti-microbial amount of about 1 ppm to about 1000 ppm, and a controlled amount of hydrogen peroxide also being present. Peracetic acid is the preferred peracid. The viscosity-modifying polymer in the aqueous well treatment fluid composition may serve to reduce friction in the fluid or increase fluid viscosity. A method of using such compositions is also disclosed.

Abstract: Aqueous well treatment fluid compositions with biocidal activity are disclosed comprising a polymer for modifying fluid viscosity in the aqueous fluid, an organic monocarboxylic peracid being present in an anti-microbial amount of about 1 ppm to about 1000 ppm, and a controlled amount of hydrogen peroxide also being present. Peracetic acid is the preferred peracid. The viscosity-modifying polymer in the aqueous well treatment fluid composition may serve to reduce friction in the fluid or increase fluid viscosity. A method of using such compositions is also disclosed.

Abstract: The present invention is directed to a method for the treatment of an environmental medium contaminated with arsenic, comprising treating such medium with an effective amount of persulfate and zero valent iron.

Abstract: Aqueous well treatment fluid compositions with biocidal activity are disclosed comprising a polymer for modifying fluid viscosity in the aqueous fluid, an organic monocarboxylic peracid being present in an anti-microbial amount of about 1 ppm to about 1000 ppm, and a controlled amount of hydrogen peroxide also being present. Peracetic acid is the preferred peracid. The viscosity-modifying polymer in the aqueous well treatment fluid composition may serve to reduce friction in the fluid or increase fluid viscosity. A method of using such compositions is also disclosed.

Abstract: A method of sterilizing a material, said method comprising the steps of: (a) introducing a solution comprising peroxyacetic acid into a hot gaseous stream to produce a peroxyacetic acid vapor; and (b) contacting such peroxyacetic acid vapor with the material to be sterilized.

Abstract: Combustion flue gas containing NOX and SOX is treated to remove NOX in a multistep system in which NOX is reduced in the flue gas stream via selective catalytic reduction or selective non-catalytic reduction with ammonia or an ammonia-forming compound, followed treatment with hydrogen peroxide to remove residual ammonia and, optionally, treatment with an alkali reagent to reduce residual NOX in the flue gas stream. The NOX-depleted flue gas stream may also be subjected to a desulfurization treatment for removal of SOX.

Abstract: A method of sterilizing a material, said method comprising the steps of: a) providing a sterilizing composition comprising (i) peracetic acid and (ii) a stabilizer selected from the group consisting of citric acid, isocitric acid, aconitic acid and propane-1,2,3-tricarboxylic acid; b) introducing such sterilizing composition into a hot gaseous stream to produce a peracetic acid vapor; and c) contacting such peracetic acid vapor with the material to be sterilized. The use of such an organic acid stabilizer results in an unexpected reduction in the amount of residue deposited on the heating surface employed to vaporize the sterilizing composition.