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6692628 |
Process to remove ferric iron impurities from an acidic aqueous solution used in the electro-winning of copper
A process for the removal of primarily iron impurities from acidic aqueous electrolytic solutions used in the electro-winning of copper is described. Strong base Type 1 ion exchange resin is used...
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6685781 |
Fractionation method for sucrose-containing solutions
A method for separating sucrose and a second dissolved component from a sucrose-containing solution, preferably a beet-derived sucrose-containing solution, wherein the solution is subjected to a...
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6660172 |
Precoat filtration media and methods of making and using
The invention is directed to a precoat or body feed composition comprising a microbiological interception enhanced filter aid. Preferably, the microbiological interception enhanced filter aid...
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6660165 |
Method for regenerating inorganic porous particles, method for purifying water, and continuous water purification device
The present invention is to provide a method for regenerating inorganic porous particles, a method for purifying water and a continuous water purification device, which can be easily applied as a...
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6649065 |
Bromine biocide removal
A system and method are provided which removes bromine biocide used in effluent process streams without the use of chemicals or complex mechanical systems. In particular, the system and method of...
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6620324 |
Methods for purifying a solvent
An improved inclusive method for purifying a polar solvent such as water includes the re-suspension of finely divided layered materials within which contaminants have been captured, wherein the...
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6541273 |
Multiple sorbent cartridges for solid phase extraction
Methods and apparatus are disclosed which are useful for detecting the presence of various pesticides, including aryl pyrazoles such as fipronil. Pesticide residues are extracted from a variety of...
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6482326 |
Method of filtering used cooking oil
A filter for removing undesired materials from a fluid, such as used cooking oil, for example, includes a filter envelope including first and second panels. The first panel has a permeability which...
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6475390 |
Process for the purification of nutrients from food process streams
A separation process is described for separation of a nutrient from divalent ions of an aqueous solution. The aqueous solution is contacted with an ion exchange resin that includes monovalent ions...
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6464877 |
Water treating method
The present invention relates to a water treatment process comprising adding ozone to raw water and filtering the raw water using an ozone-resistant membrane, wherein a concentration of ozone...
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6458277 |
Method and apparatus for cleaning products containing heavy metals
The invention uses the electro-kinetic principle for a method for the cleaning of materials contaminated with heavy metals, whereby use is made of an apparatus comprising two charge-selective...
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6447685 |
Method for separating multi-phase mixtures of solvents having small differences in density
The invention relates to an apparatus for separating water-containing solvent mixtures having two or more phases, using one or two gravitational separators ( 4, 16 ) and to the use of this...
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6440308 |
Method for treating a photographic processing bath
The present invention relates to a composite material in which an active organic compound is dispersed, as well as to an effluent treatment process, especially a photographic effluent treatment...
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6426007 |
Removal of soluble metals in waste water from aqueous cleaning and etching processes
This invention provides a method for treating waste water containing organic bases such as tetramethyl ammonium hydroxide and dissolved metals such as Mo, W, Cu and Ni which are generated from mask...
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6398965 |
Water treatment system and process
A water treatment system and process for removing weakly ionized and/or organic materials from the water by intra-system pH adjustment. An exemplary embodiment of the system includes an inlet...
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6383540 |
Method of processing whey for demineralization purposes
A method of treating whey for demineralization purposes, the method comprising a stage of separating out salts by transfer through electrodialysis or nanofiltration membranes, wherein, upstream...
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6379555 |
Wastewater treatment process using an admixed paste of activated carbon and magnesium hydroxide
Wastewater treatment processes and preferred systems for practice of the processes, the invention particularly intends the removal of particulates and dissolved materials contaminating the effluent...
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6372143 |
Purification of produced water from coal seam natural gas wells using ion exchange and reverse osmosis
A method and apparatus are provided for treating produced water to lower the total dissolved solids of the water for safe discharge to the environment. The produced water is passed through a weak...
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6358420 |
Blood collection method employing an air venting blood sample tube
Systems and methods for collecting blood substantially free of residual air and undesired matter also assure that accurate crossmatching and typing of cellular blood components can be done prior to...
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6345528 |
High-temperature characterization of polymers with HPLC system having multiple mobile-phase reservoirs
Rapid characterization and screening of polymer samples to determine average molecular weight, molecular weight distribution and other properties is disclosed. Rapid flow characterization systems...
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6328894 |
Processes of purifying a dispersion and making inkjet inks
A process to purify and classify a dispersion containing stabilized particles having counterions and ions as well as free species is disclosed. The solution may comprise an aqueous media, a solvent...
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6214125 |
Fractionation method for sucrose-containing solutions
A method for separating sucrose and a second dissolved component from a sucrose-containing solution, preferably a beet-derived sucrose-containing solution, wherein the solution is subjected to a...
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6200480 |
Method of purifying photoacid generators for use in photoresist compositions
The present invention is directed to a process of removing trace acidic impurities from an impure solution of photoacid generating compounds in a solvent, comprising contacting an impure solution...
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6193891 |
Methods for the selective separation of organic components from biological fluids
The present invention pertains to improved methods for the selective separation of organic components from biological fluids. More particularly, the present invention pertains to methods for the...
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6177513 |
Method for evaluating artificial receptors
A method for evaluating an artificial receptor includes subjecting a functional monomer and a crosslinker in the presence of a template substance in a vessel into polymerization, thereby forming a...
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6174733 |
Detection of pathogens using a column device with a sample containing a control
Methods are disclosed for detecting the presence of at least two predetermined known materials in a test sample. At least one of the predetermined known materials is a control material. The test...
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6149809 |
Water treatment system with backwashable precise prefilter unit
A water treatment system with a backwashable precise prefilter unit includes a backwashable prefilter column installation and a five-channel ball valve. The five-channel ball valve connects the...
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6129845 |
Catalyst-containing photo-oxidation device, and water treatment system of a semiconductor device fabrication line employing said device
A photo-oxidation device of a water treatment system photo-oxidizes organic material, in particular, aromatic organic material, in the water to facilitate its removal from the water. The...
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6113798 |
Process for the purification of hydrogen peroxide
Process for purification of aqueous solutions of hydrogen peroxide comprising the steps of adding one or more macroligands to said solution to form a mixture and forcing the mixture through an...
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6113792 |
Method for removing contaminants from water using membrane filtration in combination with particle adsorption to reduce fouling
Heated iron oxide particles are combined with membrane filtration to remove contaminants from water. The use of the heated particles reduces fouling of the membrane typically encountered when...
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6106773 |
Pathogen inactivating compositions for disinfecting biological fluids
The present invention is directed to pathogen inactivating compositions that can be used to disinfect various biological fluids, such as blood, blood fractions, and the like. The compositions are...
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6106728 |
Slurry recycling system and method for CMP apparatus
A slurry recycling system for a CMP apparatus includes a flow path through which a slurry used in the CMP apparatus flows. A first filter is disposed in the flow path for filtering out foreign...
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6083402 |
Stormwater drain filter
A Stormwater Drain Filter for removing sediment and liquid hydrocarbons comprised of a tank having a central outlet which flows into a sewer inlet and is surrounded by a floating boom which is...
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6080317 |
Process and apparatus for the purification of waste water
A process and apparatus for the purification of waste water includes a nano-filteration stage (19) which returns a stream of retained substance (20) in a cycle (15, 16, 17, 18) in order to effect a...
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6080313 |
Point-of-use water purification system with a cascade ion exchange option
A modular water treatment and purification system, suitable for home use, is connected to a water supply and contains a closed fluid treatment circuit extending to a water outlet. The closed fluid...
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6056892 |
Method for purifying liquid crystal
A process for purifying an anti-ferroelectric liquid crystal or a ferrielectric liquid crystal, which comprises the following steps 1 to 4, step 1: preparing a liquid crystal solution of an...
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6057377 |
Molecular receptors in metal oxide sol-gel materials prepared via molecular imprinting
A method is provided for molecularly imprinting the surface of a sol-gel material, by forming a solution comprised of a sol-gel material, a solvent, an imprinting molecule, and a functionalizing...
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6051140 |
Water decontaminating system and method
A portable point of use water decontaminating unit adapted to receive a flow of water from a faucet or other water source and pass the water through a filtering and decontaminating system to...
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6048458 |
Apparatus and method for waste recycling and conversion
Municipal solid waste is classified as to density as well as size in a perforated inclined trommel through which a gas stream is flowed inwardly through the perforations and downwardly to entrain...
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6036864 |
Process for reducing water consumption during wet processing of textiles
An economical process for reducing water consumption and, therefore, water discharge during the dyeing of textile goods is disclosed. Processing baths during dyeing, which can be reused directly or...
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6033700 |
Demineralization of milk and milk-derived products by electrodeionization
A liquid milk product, including a milk and a whey, but other than sweet whey, is demineralized by an electrodeionization process by passing the product to be demineralized through a resin bed of...
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6030535 |
Method of and apparatus for producing potable water and salt
Original seawater is supplied to a pre-treatment equipment, and a flocculated material produced by exerting a magnetic force and injecting ozone is removed by filtration. The seawater pretreated by...
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6027649 |
Process for purifying water using fine floc and microfiltration in a single tank reactor
A system of purifying water to remove at least one of natural organic matter, color, turbidity, bacteria, cysts and oocysts, viruses, arsenic compounds and insoluble impurities. The system...
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6001258 |
Method for removing organic constituents from an aqueous stream
In order to remove organic constituents from an aqueous stream, the aqueous stream is combined with an adsorbent consisting of small particles to produce a dispersion in order to bind the...
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5968229 |
Purification of metal containing solutions
A process for the purification of solutions containing metals comprising neutralization of the solution, reduction of Fe(III) present, and elimination of ingoing dissolved zinc, whereby the ingoing...
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5965029 |
System and method for treating an oil gas well stream
The invention pertains to a system and process for removing contaminants from an oil and gas well bore stream. The system comprises a vessel adapted to receive the stream from the well bore. The...
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5958232 |
Reverse osmosis drinking water treatment system with backwashable precise prefilter unit
A reverse osmosis drinking water treatment system with a backwashable precise prefilter unit includes a super precise filter, a pressure pump and its automatic control system, a reverse osmosis...
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5951869 |
Method for treating fluids
A fluid treating method for treating fluid to reduce the concentration of undesirable nitrogen compounds and/or metal constituents contained therein is disclosed. The method utilizes a bed of metal...
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5932105 |
Method of polyester manufacturing using crossflow membrane filtration
An improved process for the manufacture of polyester resin from the esterification of an aromatic acid with a glycol followed by polycondensation in the presence of a metal oxide catalyst in which...
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5879555 |
Electrochemical treatment of materials
This is a method of treatment of materials with the use of a sacrificial metal and reducible ions which comprises steps of a) contacting the material to be treated with the surface of the said...
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