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7618538 |
Procedure for elimination of boron from sea-water by reverse osmosis membranes
The present invention relates to a procedure for elimination of boron from sea-water by reverse osmosis membranes characterized in that it comprises:
adding to sea-water a composition...
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7494605 |
Process for triggering, storing, and distributing an oxygen scavenger, and a stored oxygen scavenger
A method includes triggering an oxygen scavenger; and storing the scavenger in a container configured such that the oxygen scavenger exhibits no substantial oxygen scavenging activity while inside...
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7488372 |
Process for inhibiting deposition of solids from a gaseous stream
The present invention relates to a process for degassing an aqueous solution containing a hydroformylation product and separating a volatile metal species from gaseous stream to inhibit or prevent...
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7481937 |
Methods and systems for treating wastewater using ozone activated flotation
Various methods and systems are provided below for the treatment of wastewater. According to various embodiments, treatment of wastewater is accomplished using the oxidative power of ozone gas and...
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7438877 |
Fast, high capacity hydrogen sulfide scavengers
Selective, irreversible removal of hydrogen sulfide (H 2 S) and other sulfhydryl compounds from a gas stream, such as sour natural gas and sour hydrocarbon liquids is achieved with a scavenging...
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7384563 |
Method for purifying water with ozone and ultrasonic energy
A method and apparatus for using a combination of sonication and ozone to decontaminate pressurized water. The process includes pumping polluted water from a source, such as a creek, river, pond or...
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7374734 |
Absorbing agent and method for eliminating acid gases from fluids
The disclosure relates to an absorbent for removing acid gases from fluids. The absorbent contains at least one tertiary amine, an amine which is selected from hydroxyethylpiperazine,...
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7335308 |
Method for treatment of liquids, in particular, for purification of contaminated water
The invention relates to a method and an installation for treating liquids, especially for purifying contaminated water. Said method consists of the following steps: the raw water is pre-purified...
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7273561 |
Method for determining the chemical dosage required to reduce sulfides in wastewater to acceptable levels
An apparatus and method of determining chemical dosage required to reduce sulfides in wastewater includes providing a headspace apart from the wastewater. The temperature of the wastewater and the...
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7273554 |
Crossflow-filtration method for beverages
The invention relates to a crossflow-filtration method for beverages, in particular beer, which comprises the following steps: a) the feed liquid is introduced into a filter module by means of a...
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7255796 |
Method of preventing hydrogen sulfide odor generation in an aqueous medium
The present invention relates to a fast acting chemical treatment for preventing the generation of hydrogen sulfide odor by the microbial metabolic activities of sulfate reducing bacteria....
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7252771 |
Method and device for decontaminating waters which are loaded with organic halogen compounds (halogenated hydrocarbons)
The invention relates to a process and a device for decontaminating waters, especially groundwaters, which are heavily and complexly polluted with organic halogen compounds (HHC), in which process...
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7208117 |
Automated process for inhibiting corrosion in an inactive boiler containing an aqueous system
This invention relates to an automated process to inhibit corrosion of the metal surface of an inactive boiler containing water.
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7160527 |
Method for treating amonia-containing effluent water
Disclosed are a method and an apparatus for treating an effluent containing ammonia in which method and apparatus N 2 O concentration in the gas at the outlet of a catalyst tower does not rise to a...
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7160430 |
Electrochemical treatment of ammonia in waste-water
In a sewage treatment plant, dissolved ammonium is extracted from the waste-water stream, and is transferred to a body of secondary water. The secondary water is passed through an electrolysis...
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7140433 |
Diamine terminated primary amine-aldehyde sulfur converting compositions and methods for making and using same
A new class of sulfur scavenging or converting compositions is disclosed comprising diamine terminated, amine-aldehyde adducts, where the adducts are substantially bimolecular amine-aldehyde...
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7132579 |
Method of chlorine purification and process for producing 1,2-dichloroethane
A method for chlorine purification in which crude chlorine containing nitrogen and/or oxygen is purified to separate the nitrogen and oxygen from the chloride, characterized in that the crude...
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7112284 |
Oxygen scavenger and the method for oxygen reduction treatment
Oxygen scavenger which can exhibit excellent oxygen reduction effect in a wide variety of conditions is provided as an alternative volatile oxygen scavenger to hydrazine. The oxygen scavenger...
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6991733 |
Process for removing organics from ultrapure water
In order to reduce a total organic carbon (TOC) in ultrapure water to a level less than 1 ppb, several cycles of ozone contact/UV irradiation treatments are carried out in sequence. Preferably, the...
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6911153 |
Method and apparatus for treating fluid mixtures with ultrasonic energy
A method and apparatus for treating mixtures with ultrasonic energy. In one embodiment, the mixture can include a selected constituent and the method can include directing a continuous flow of the...
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6866750 |
Device for desalination of water and methods of use
The present invention provides a device and method for desalinating saltwater which utilizes a heatable vessel wherein is placed a sufficient quantity of a salt which will absorb water of...
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6821442 |
Method and apparatus for control of aquatic vertebrate and invertebrate invasive species
A method of killing aquatic species in water includes containing the water with the aquatic species therein within a conduit; pressurizing the water; and transferring gas to the water to thereby...
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6800257 |
Process for preparing trichloracetic acid and apparatus for use in such process
A process for preparing trichloroacetic acid comprises the step of bringing functional water capable of partial oxidizing tetrachloroethylene under irradiation with light or aerated functional...
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6776958 |
Method and device for treating a heavily loaded liquid effluent in particular with nitrogen and with phosphorus
A device for treating a liquid effluent such as pig slurry containing significant quantities of nitrogen and phosphorus, the device including a mixing reactor for contacting the liquid effluent...
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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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6746630 |
Oxygen scavengers independent of transition metal catalysts
The claims are drawn to a method of detecting seal breakage or incomplete seal formation in a package, said method comprising the steps of: (i) providing said package, prior to sealing, with a...
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6746614 |
Method for removing hydrogen peroxide from spent pickle liquor
The present invention provides a process for the removal of hydrogen peroxide from spent pickle liquor used in a steel strip pickling process. The process utilizes an enclosed decomposition tank...
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6733679 |
Method of treating an electroless plating waste
A method of treating an electroless plating waste is provided. The waste is contained and an ability of a reducing agent to reduce a metal of the waste is decreased, for example by adding a...
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6730214 |
System and apparatus for accelerating mass transfer of a gas into a liquid
System and apparatus to accelerate solution of gas into liquid. The system includes an aspirating injector to bring the gas into the pressurized system, a collider, a reactor, and an optional...
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6716360 |
Method and apparatus for treating waste streams
A method for treating a waste stream, the method including the steps of providing a waste stream that includes waste solids suspended in water, feeding the waste stream to the top of a hydraulic...
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6709602 |
Process for hydrothermal treatment of materials
A system and method for treating feedstocks containing solids, sludges or slurries that contain organics includes introducing the feedstock into a desorption chamber. In the desorption chamber, the...
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6673249 |
Efficiency water desalination/purification
Various methods and apparatus for maximizing the efficiency of hydrate-based desalination or other water purification in open-water or partially open-water installations are disclosed. In one...
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6669853 |
Composition for removing dissolved oxygen from a fluid
This invention relates to compositions, which are useful in removing dissolved oxygen from a fluid stream, preferably an aqueous stream. The compositions comprise blend of an oxime and a primary...
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6666973 |
Method for fixing fluorine and phosphorus in waste water containing fluorophosphoric acid-derived compound to remove them
A method is provided for fixing and eliminating fluorine and phosphorus in waste water wherein the waste water includes a fluorophosphate compound in which hydrochloric acid is added to the waste...
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6638428 |
Method of preventing formation of bubbles during filtration operations
Formation of bubbles is prevented during filtration operation by placing an oil on top of a solution-to-be filtered, where the oil is not admixable with the solution and has a lower specific...
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6616849 |
Method of and system for continuously processing liquid materials, and the product processed thereby
The present invention proposes a method of and system for continuously processing liquid material by which enzymes in the liquid material are inactivated and the liquid material is sterilized...
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6585899 |
Mobile waste treatment system
Disclosed are waste processing systems capable of being used on-board a transport such as a train, bus, airplane, boat, or other similar vehicles. The liquid waste is evaporated and condensed...
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6503403 |
Gas-liquid contact apparatus
An apparatus and method for enhancing dissolution of gases in liquids by ejecting the gas-liquid mixture through nozzles in a reaction vessel. The nozzles are pressurized, sized and directed to...
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6495048 |
Water and wastewater treatment system and process for contaminant removal
A system and process for removing contaminants from water and wastewater, where the water or wastewater is transformed into purified water that can be discharged to the environment. Wastewater is...
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6482360 |
Antifoam compositions including lecithin and uses thereof
A composition including lecithin which is useful for defoaming liquids, such as blood. In one aspect of the invention the composition includes inorganic particles. In another aspect of the...
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6464867 |
Apparatus for producing water containing dissolved ozone
An apparatus for producing water containing dissolved ozone which comprises (A) a piping for supplying ultrapure water through which ultrapure water is supplied, (B) a catalytic reaction portion...
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6444130 |
Process for rendering waste from electric furnace production of phosphorus non-hazardous
The invention is a process for treating waste slurry generated in the electric furnace production of phosphorus in which a superatmospheric reactor is operated at an elevated temperature to destroy...
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6391256 |
Dissolved oxygen removal method using activated carbon fiber and apparatus thereof
A dissolved oxygen removal method using an activated carbon fiber catalyst thereof which includes the steps of a reducing agent injection step for injecting a reducing agent into the water, a...
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6346206 |
Oxygen scavenger and boiler water treatment chemical
An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound with N—N bond in a ring thereof. An oxygen scavenger characterized in that the...
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6299782 |
Method and apparatus for treating liquid-containing material based on organic waste products
A continuous process for treating a liquid-containing organic waste material. Sufficient acid is added to the material to achieve a pH of 2 or less in the material. The material is subjected to a...
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6299781 |
Removal of hydrocarbon components from an aqueous waste stream
Water containing difficult-to-remove volatile hydrocarbon contaminants which may include MTBE, TBA and/or BTEX is treated under pressure by electrolysis and oxidative reduction in a contact area,...
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6294097 |
Method for treating waste water containing nitrate ions
There is disclosed a method for treating waste water containing nitrate ions by subjecting the waste water to decomposition and oxidation to eliminate a harmful gas, the method including the steps...
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6277175 |
Method and apparatus for removing trihalomethanes and dissolved oxygen from water
A method for removing THMs and dissolved oxygen from water, including supplying the water into an upper portion of an air stripping container, passing the water generally downward toward a lower...
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6251287 |
Apparatus and method for treating liquids
A system for treating a nitrate contaminated liquid to remove deleterious or undesirable nitrates therefrom wherein a supply of ionized nitrogen is entrained into a continuous stream of a nitrate...
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6221261 |
Process for treating sewage using hydro fluoro ether polymers
A process for treating sewage containing biological solids including the steps of mixing the sewage with oxygen-containing hydro fluoro ether polymers, retaining the sewage with the hydro fluoro...
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