Abstract: Provided herein are methods of using chlorate compositions to decrease the viscosity of polyacrylamide containing fluids, such as, for instance, petroleum well treatment fluids (e.g., fracturing fluids). Also provided herein are methods of treating polymer plugging in hydrocarbon bearing subterranean formations using chlorate compositions. Also provided herein are well treatment fluids comprising polyacrylamide and chlorate.

Abstract: Provided herein are methods and systems for applying chlorine dioxide comprising contacting a target surface with a curtain of a liquid chlorine dioxide treatment solution. The disclosed methods and systems provide improved delivery of chlorine dioxide to target surfaces and have the advantages of providing improved treatment efficacy, improved safety, and reduced chemical usage. The methods and systems can be used for treatment of a variety of surfaces in need of decontamination, including but not limited to food products.

Abstract: According to one aspect of the invention, a method of converting an oxy halide salt into a halide dioxide in a reaction zone under certain conditions is provided. More specifically, the method includes generating chlorine dioxide from a stable composition comprising an oxy halide salt by introducing said composition to a reducing agent and minimum temperature within the reaction zone. According to another aspect of the invention, a composition for a stable chlorine dioxide precursor comprising an oxy halide salt is provided.

Abstract: The invention provides methods of oxidizing, sanitizing, disinfecting, and/or sterilizing a target. The method includes: ejecting a gas stream of a gaseous mixture comprising 50 to 30,000 ppmv chlorine dioxide from a gas source at a velocity of 25 to 900 ft/sec; and contacting the gas stream with the target. A device for oxidizing, sanitizing, disinfecting, and/or sterilizing a target is also provided. The device includes: a chlorine dioxide inlet configured for intake of a gaseous mixture comprising 50 to 30,000 ppmv chlorine dioxide; and a gas source configured to eject a gas stream of the gaseous mixture at a velocity of 50 to 900 ft/sec.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications, in particular gas and crude oil drilling, pumping and production, in order to reduce or eliminate contamination and allow the water that is treated to be reused, in particular, to be reused for hydraulic fracturing.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications and gas and crude oil drilling, pumping and production to reduce or eliminate contamination. In one embodiment, a method includes: an aqueous volume having an initial oxidant demand, an oxygen-containing oxidant and at least one chlorine oxide at substoichiometric amounts in an amount sufficient to eliminate the oxidant demand. The system includes: an aqueous treatment system comprising a containment system; at least one apparatus for introducing an oxygen-containing oxidant; and at least one apparatus for introducing at least one chlorine oxide into said containment system at controlled, substoichiometric quantities.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications, in particular gas and crude oil drilling, pumping and production, in order to reduce or eliminate contamination and allow the water that is treated to be reused, in particular, to be reused for hydraulic fracturing.

Abstract: The present disclosure provides a bulk treatment for introduction into a hydrocarbon bearing formation, the bulk treatment comprising a volume of a treatment fluid comprising chlorine dioxide, wherein the volume is such that when the treatment fluid is introduced into a wellbore that penetrates the hydrocarbon bearing formation, the fluid is expected to extend into the formation to a radius that goes beyond the near wellbore region. Such a bulk treatment can act to draw out hydrocarbons from a hydrocarbon-bearing formation, thereby enhancing recovery of oil and/or gas. Also provided herein are mixtures comprising chlorine dioxide, water, an organic non-polar solvent, and optionally one or more additional components (e.g., an acid or chelating agent and/or a surfactant or cosolvent). The mixtures are useful for enhancing recovery of oil and/or gas and for removing residues that contain hydrocarbons. Apparatus for making the mixtures, and methods of making and using the mixtures, e.g.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications and gas and crude oil drilling, pumping and production to reduce or eliminate contamination. In one embodiment, a method includes: an aqueous volume having an initial oxidant demand, an oxygen-containing oxidant and at least one chlorine oxide at substoichiometric amounts in an amount sufficient to eliminate the oxidant demand. The system includes: an aqueous treatment system comprising a containment system; at least one apparatus for introducing an oxygen-containing oxidant; and at least one apparatus for introducing at least one chlorine oxide into said containment system at controlled, sub stoichiometric quantities.

Abstract: The invention provides methods of oxidizing, sanitizing, disinfecting, and/or sterilizing a target. The method includes: ejecting a gas stream of a gaseous mixture comprising 50 to 30,000 ppmv chlorine dioxide from a gas source at a velocity of 25 to 900 ft/sec; and contacting the gas stream with the target. A device for oxidizing, sanitizing, disinfecting, and/or sterilizing a target is also provided. The device includes: a chlorine dioxide inlet configured for intake of a gaseous mixture comprising 50 to 30,000 ppmv chlorine dioxide; and a gas source configured to eject a gas stream of the gaseous mixture at a velocity of 50 to 900 ft/sec.

Abstract: Provided herein are methods of inactivating a mosquito larva, the methods comprising exposing the larva to an aqueous chlorine dioxide treatment solution for a minimum contact time, wherein the aqueous chlorine dioxide treatment solution comprises a residual chlorine dioxide concentration at the conclusion of the minimum contact time. Also provided herein are methods of treating a body of water containing a mosquito larva. The methods are effective to inactivate the larva, thereby preventing growth of mosquito populations and the related spread of mosquito-borne disease.

Abstract: Provided herein are methods of drawing out oils and/or fats (e.g., hydrocarbons) from a solid material (such as, e.g., metal or rock, e.g., a hydrocarbon bearing geologic formation). The methods comprise fumigating the solid material with a gas containing chlorine dioxide, thereby drawing out oil and/or fat from the solid material. The methods can be used, e.g., to clean solid materials used in industry and to enhance the recovery of crude oil and/or natural gas from petroleum wells.

Abstract: According to one aspect of the invention, a method of converting an oxy halide salt into a halide dioxide in a reaction zone under certain conditions is provided. More specifically, the method includes generating chlorine dioxide from a stable composition comprising an oxy halide salt by introducing said composition to a reducing agent and minimum temperature within the reaction zone. According to another aspect of the invention, a composition for a stable chlorine dioxide precursor comprising an oxy halide salt is provided.

Abstract: Provided herein are methods of inactivating a mosquito larva, the methods comprising exposing the larva to an aqueous chlorine dioxide treatment solution for a minimum contact time, wherein the aqueous chlorine dioxide treatment solution comprises a residual chlorine dioxide concentration at the conclusion of the minimum contact time. Also provided herein are methods of treating a body of water containing a mosquito larva. The methods are effective to inactivate the larva, thereby preventing growth of mosquito populations and the related spread of mosquito-borne disease.

Abstract: According to one aspect of the invention, a method of converting an oxy halide salt into a halide dioxide in a reaction zone under certain conditions is provided. More specifically, the method includes generating chlorine dioxide from a stable composition comprising an oxy halide salt by introducing said composition to a reducing agent and minimum temperature within the reaction zone. According to another aspect of the invention, a composition for a stable chlorine dioxide precursor comprising an oxy halide salt is provided.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications and gas and crude oil drilling, pumping and production to reduce or eliminate contamination. In one embodiment, a method includes: an aqueous volume having an initial oxidant demand, an oxygen-containing oxidant and at least one chlorine oxide at substoichiometric amounts in an amount sufficient to eliminate the oxidant demand. The system includes: an aqueous treatment system comprising a containment system; at least one apparatus for introducing an oxygen-containing oxidant; and at least one apparatus for introducing at least one chlorine oxide into said containment system at controlled, sub stoichiometric quantities.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications, in particular gas and crude oil drilling, pumping and production, in order to reduce or eliminate contamination and allow the water that is treated to be reused, in particular, to be reused for hydraulic fracturing.

Abstract: Embodiments of the invention relate generally to methods and systems for treating aqueous systems associated with industrial wastewater applications and gas and crude oil drilling, pumping and production to reduce or eliminate contamination. In one embodiment, a method includes: an aqueous volume having an initial oxidant demand, an oxygen-containing oxidant and at least one chlorine oxide at substoichiometric amounts in an amount sufficient to eliminate the oxidant demand. The system includes: an aqueous treatment system comprising a containment system; at least one apparatus for introducing an oxygen-containing oxidant; and at least one apparatus for introducing at least one chlorine oxide into said containment system at controlled, substoichiometric quantities.

Abstract: According to one aspect of the invention, a composition for a stable chlorine dioxide precursor comprising an oxy halide salt is provided.

Abstract: According to one aspect of the invention, a method of converting an oxy halide salt into a halide dioxide in a reaction zone under certain conditions is provided. More specifically, the method includes generating chlorine dioxide from a stable composition comprising an oxy halide salt by introducing said composition to a reducing agent and minimum temperature within the reaction zone.