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7641802 |
Wastewater treatment method and wastewater treatment equipment
In a micronanobubble reaction vessel 3 of wastewater treatment equipment, wastewater containing organic matter is treated with micronanobubbles. Thereafter, the wastewater is introduced into an...
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7618545 |
Method for treating ship ballast water
A method for treating ship ballast water in which organisms viable in the ship ballast water are exterminated by adding to the ship ballast water hydrogen peroxide or a compound producing hydrogen...
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7585460 |
Method for inhibiting the biological acidification of water in contact with materials containing sulfur
The invention relates to a method for inhibiting the biological acidification of water which is in contact with materials containing sulfur in reduced form or with elemental sulfur, susceptible to...
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7553422 |
Method and device for purifying water of nuclear installations
A method of purifying water in a nuclear installation includes an ion exchange mechanism in which the water is purified with an ion exchanger. Before being guided over the ion exchanger, the water...
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7537706 |
Microporous diffusion apparatus
Apparatus for active in situ multi-element gas sparging for bioremediation or physico-chemical degration for removal of contaminants in a soil formation containing a subsurface groundwater aquifer...
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7507345 |
Soy proteins and/or soy derivatives with zero-valent iron compositions and use for environmental remediation
Preparation of dispersions of zero-valance nanoscale iron particles and one of soy protein, soy milk, or other soy derivative. The dispersions can be used to treat contaminated soil or water.
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7481938 |
Metal compound removal
The present invention relates to a process for separating at least one metal compound and/or a component thereof from a mixture, said process comprising contacting the said mixture with a...
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7476333 |
Composition and method for reducing chemical oxygen demand in water
A method and composition for reducing chemical oxygen demand is presented. The composition includes a persulfate donor and a transition metal catalyst in contact with the persulfate donor. When the...
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7473372 |
Oxidation of organic compounds
An improved method for treating organic compounds present in soil, groundwater and other environments is disclosed. The method involves the use of a peroxygen compound and a chelated transition metal.
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7465411 |
Catalyst-mediated in-situ generation of dioxirane
A composition capable of expedited in-situ generation of dioxirane and a method of preparing the composition are presented. The composition includes a transition metal catalyst, peracid donor, and...
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7465376 |
Method and device for treating liquids
The invention provides for the removal of impurities from treatment fluid including a base liquid and a variety of impurities contained in the base liquid by conveying the treatment fluid to at...
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7459086 |
Method for treating water containing iron, manganese and arsenic
A method for treating water to produce potable water is described herein. The inventive method enables the efficient removal of iron, manganese, and arsenic without the addition of powerful...
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7431849 |
Encapsulated reactant and process
An encapsulated reactant(s) having at least one encapsulant and at least one reactant. An outermost encapsulant is substantially nonreacting, impermeable and nondissolving with water. The...
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7419606 |
Selenium removal process
A process for removing selenium from an aqueous stream using a supported sulfur material, and optionally the addition of an activating agent for enhanced removal of selenite, is disclosed.
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7413664 |
Selenium removal process
A process for removing selenium from an aqueous stream using a supported sulfur material, to convert selenocyanate to selenite, followed by removal of the selenite from the aqueous stream.
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7399414 |
Wet oxidation with the aid of a porous catalytic contactor
A process for oxidation of oxidizable materials which are dissolved or suspended in a liquid phase. A contactor in the form of a porous membrane is used. The contactor is designed such that an...
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7329359 |
Application of catalysts for destruction of organic compounds in liquid media
A method of destroying an organic compound in liquid media comprising: contacting said liquid media with a catalyst of formula: nN/Ce 1−x Zr c B b B′ b′ B″ b″ O 2−δ wherein n is a...
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7326330 |
Method and apparatus for scale and biofilm control
Method and apparatus for electrolytically controlling the formation of scale and biofilm in water purification and other systems. An anode is deposited on or disposed on or adjacent to a surface,...
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7300593 |
Process for purifying a lipophilic fluid
A process for purifying dry cleaning solvents from a mixture containing used dry cleaning solvents and contaminants, such as laundry soils, fabric treating agents.
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7300594 |
Process for purifying a lipophilic fluid by modifying the contaminants
A process for purifying a lipophilic fluid employing a functionalized fabric treating agent. The functionalized fabric treating agent is capable of delivering fabric treating benefits in a...
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7291270 |
Process for removal of impurities from an oxidizer purge stream
A process is disclosed that relates to the removal of impurities and the recovery of a mother liquor and wash filtrate from an oxidizer purge stream produced in the synthesis of carboxylic acid,...
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7273556 |
Method for treating water containing manganese
The invention concerns a method for treating water for human consumption, so as to eliminate manganese and possibly other metals comprising steps which consist in: causing said water to pass at...
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7264747 |
Coated microbubbles for treating an aquifer or soil formations
A microporous diffuser includes a first elongated member including at least one sidewall having a plurality of microscopic openings. The sidewall defines an interior hollow portion of the member....
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7261822 |
Method and apparatus for activating water
A process of activating water by leading water to pass through energy concentrated fields which are generated in particles, being composed of a single elementary material selected from a group of...
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7247240 |
Method for treating waste water
The invention provides a method for treating waste water wherein organic and inorganic substances in waste water can be treated at high levels regardless of the concentration, and a unit itself can...
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7238290 |
Catalytic oxidation of peroxy salts
Transition metal ions have the ability to increase the oxidation performance of the inorganic peroxy salts at room temperature by possibly lowering their activation energy or by producing more...
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7157013 |
Filtration method
A method of filtering contaminants from a chemical process stream is disclosed. The method includes a step of passing the process stream over a filtration medium including a plurality of discrete...
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7022241 |
Gas-gas-water treatment system for groundwater and soil remediation
A sparging system for in-situ groundwater remediation for removal of contamination including dissolved chlorinated hydrocarbons and dissolved hydrocarbon petroleum products including the use in...
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6992042 |
Doped titanium oxides
Pyrogenically prepared titanium dioxide doped by means of an aerosol contains an oxide from the group zinc oxide, platinum oxide, magnesium oxide and/or aluminium oxide as the doping component. It...
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6991735 |
Free radical generator and method
An apparatus for generating free radical species can be used to sanitize water systems. The apparatus generates hydroxyl free radical species using substantially pure water, or using a liquid that...
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6977049 |
Treatment process for industrial waste stream
A process for treating an industrial waste stream containing a borane compound including contacting the industrial waste stream with a resin carrying an oxidation catalyst that is capable of...
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6962629 |
Method for moving contaminants from gases
Carbon dioxide is purified through the use of catalytic oxidation. Carbon dioxide is exposed to at least one catalyst, oxidizing at least a portion of the nonvolatile organic residues to form...
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6916428 |
Photo-chemical remediation of Cu-CMP waste
A photo-chemical remediation of Cu-CMP waste streams basically includes the following acts: adding photo-catalyst particles into waste streams containing copper ions and organic pollutants and...
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6908559 |
Process for treating a solid-liquid mixture
A process for treating a solid-liquid mixture by cavitation to decompose at least some contaminant associated with the solid particles, the contaminant either being absorbed into the pores of the...
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6905607 |
Method for utilizing rainwater collected at buildings
A system for making use of rainwater falling on houses and buildings, which comprises a means for removing a predetermined quantity of initial precipitation from the rainwater collected form the...
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6866788 |
Method and device for purifying aqueous effluents by catalytic oxidation
The invention concerns a method for purifying aqueous effluents, in particular polluted water, by catalytic oxidation using a three-phase reactor comprising two communicating chambers. The...
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6866781 |
Direct oxygen injection groundwater remediation method and system
A bioremediation method and system for destroying or reducing the level of contaminants in a contaminated subterranean body of water includes a plurality of spaced injection sites. The injection...
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6846468 |
Method for decomposing bromic acid by photocatalyst and apparatus therefor
The invention relates to a method for decomposing bromate ions contained in a liquid. The method includes the sequential steps of bringing the liquid into contact with a photocatalyst; and...
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6797182 |
Process for the purification of organometallic compounds or heteroatomic organic compounds with hydrogenated getter alloys
A process for the purification of organometallic compounds or heteroatomic organic compounds from oxygen, water and from the compounds deriving from the reaction of water and oxygen with the...
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6797183 |
Method of treating waste effluent
This invention provides a method of treating waste effluent, particularly photographic effluent, containing reduced species such as thiosulphate or sulphite, by oxidation with hydrogen peroxide or...
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6797184 |
Catalyst for treating waste water, method for preparing the same and process for treating waste water
A method is provided for oxidizing and/or decomposing organic and/or inorganic oxidizable substances in waste water by wet oxidation with a use of a catalyst, wherein the oxidizable substances are...
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6787034 |
Compositions for removing hydrocarbons and halogenated hydrocarbons from contaminated environments
The present invention provides a supported catalyst for in situ remediation of soil and/or groundwater contaminated with a halogenated hydrocarbon comprising an adsorbent impregnated with zero...
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6780328 |
Fluid purification devices and methods employing deionization followed by ionization followed by deionization
The invention provides the continuous, integrated methods and devices for substantially removing ionized and ionizable carbon compounds from an aqueous stream by first deionization step to produce...
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6780329 |
Treating an aquifer or soil formations
A microporous diffuser includes a first elongated member including at least one sidewall having a plurality of microscopic openings. The sidewall defines an interior hollow portion of the member....
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6774262 |
Method of novel noncatalytic organic synthesis
The invention provides a method of increasing the reaction rate of an organic synthesis reaction by utilizing supply of OH − from water in the absence of catalyst without adding a basic catalyst...
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6767472 |
Catalytic fixed bed reactor systems for the destruction of contaminants in water by hydrogen peroxide and ozone
A process for the treatment of an aqueous media having contaminants therein, including adding hydrogen peroxide to the aqueous media, exposing the aqueous media to a catalytic environment, removing...
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6755974 |
Continuous naphtha treatment method
The invention relates to a method for treating naphtha, such as catalytically cracked naphtha, in order to remove acidic impurities, such as mercaptans. In particular, the invention relates to a...
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6755979 |
Peroxide impurities removal
A propylene oxide/styrene monomer aqueous purge stream is contacted with a catalyst at conditions effective to decompose peroxides contained therein, and oxygen formed by the decomposition swept...
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6749756 |
Reaction and separation methods
A method of separating compounds that includes the steps of: tagging at least a first organic compound with a first tagging moiety to result in a first tagged compound; tagging at least a second...
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6696030 |
Method for reducing the chemical conversion of oxidizable or disproportionable compounds contacting carbonaceous chars
A method is provided for reducing the chemical conversion of oxidizable or disproportionable compounds contained in liquid or gaseous process media which contact carbonaceous chars. In this method...
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