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7572377 |
Extracorporeal blood filter system
A blood filter system used for the sequential filtering of blood while actively removing air bubbles and debris comprising a filter housing with unique conical, or cylindrical shape, a flared inlet...
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7566402 |
Semi-permeable membrane for use in osmosis, and method and plant for providing elevated pressure by osmosis to create power
The present invention concerns a semi-permeable membrane for use in osmosis consisting of one thin layer of a non-porous material (the diffusion skin), and one or more layers of a porous material...
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7449093 |
Device and method for preparative electrophoresis
Method and appliance for carrying out membrane electrophoresis using microfiltration or ultrafiltration membranes, wherein the electroosmotic flow which develops in the membrane pores is reduced or...
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7407585 |
Water purification system and methods, and module for the system
The invention relates to a method and a system for purifying water whereby:
the water to be purified is pressurized ( 13 ); a pressurized flow of said water is directed onto at least one...
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7351873 |
Continuous process to separate colour bodies and/or asphalthenic contaminants from a hydrocarbon mixture
A continuous process to separate color bodies and/or asphalthenic contaminants from a hydrocarbon mixture by passing part of the hydrocarbon mixture through a membrane over which membrane a...
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7306735 |
Process for the removal of contaminants from water
The present invention provides a method of removing contaminants from water which includes the steps of first providing a water feed exposed to at least one hydrocarbon or chemical process. This...
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7189325 |
Method and device for desalting water
The invention pertains to a method and a device for desalting water by reverse osmosis, particularly for desalting seawater, in which saltwater is introduced under a first pressure into a...
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6986802 |
Selective separation of fluid compounds utilizing a membrane separation process
Apparatus and processes are disclosed for economical separation of fluid mixtures utilizing perm-selective membranes. Broadly, apparatus of the invention comprises a plurality of membrane modules...
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6926833 |
Tangential-flow filtration system
The present invention includes a system and method for transferring a selected solute species from a fluid mixture to a fluid media. The system of the present invention includes a convergent...
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6926832 |
Method of using water soluble polymers in a membrane biological reactor
A method of conditioning mixed liquor in a membrane biological reactor comprising adding to the mixed liquor an effective coagulating and flocculating amount of one or more water soluble cationic,...
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6780322 |
Hemofiltration system
A multipurpose hemofiltration system ( 10 ) and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system ( 10 ) continuously monitors the flow...
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6632371 |
Method for controlling the proportion of fluid passing through a filter
An apparatus and a method for dividing a fluid into desired proportions by means of a filtering device. The method comprises the steps of: (a) providing a filtration device, the filtration device...
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6607669 |
Method and apparatus for enhancing filtration yields in tangential flow filtration
A system is provided for proceeding with filtration of liquids in a manner having enhanced control characteristics. Yields are enhanced. The system and method can be used to maintain a...
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6598457 |
Method and apparatus for measuring the amount of entrained gases in a liquid sample
A method and an apparatus are provided for measuring the amount of entrained gases in a liquid sample. A conduit defining a volume is provided. The conduit has an inlet at a lower end thereof and...
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6497821 |
Method and apparatus for filtering suspensions of medical and biological fluids or the like
A method and apparatus for filtering suspensions of medical and biological fluids, one aspect of which is separating a suspension comprising at least two types of particles which are differently...
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6495046 |
Filtration apparatus and methods
The method relates to bringing about a mixed state of at least two fluids in a second part ( 34 ) of a line, which have flowed through a first part ( 32 ) of this line. This is attained in that a...
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6440310 |
Method and apparatus for microfiltration
A method and apparatus for microfiltration useful in softening water as well as in removing other dissolved constituents where the method comprises passing water that contains a precipitate through...
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6436290 |
Method and apparatus for separating mixtures of organic and aqueous liquid phases
The invention disclosed relates to a method and apparatus for separating a mixture containing an aqueous liquid and an immiscible organic phase using microporous hollow fibers. Such mixtures are...
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6375847 |
Method for operating a cross-flow filtration installation
The method relates to the operation of a cross-flow filtration installation for a product. This installation includes a filtration module ( 6 ), a pipeline ( 3 ) for the inflow of the product, a...
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6350382 |
Enhancing filtration yields in tangential flow filtration
A system is provided for proceeding with filtration of liquids in a manner having enhanced control characteristics. Yields are enhanced. The system and method can be used to maintain a...
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6296769 |
Multi-chambered supercritical fluid extraction cartridge and processes using it
A multiple chamber sample holding cartridge is used with a supercritical fluid extractor that causes membranes dividing the cartridge into chambers to rupture upon the pressurization of the sample...
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6245538 |
Process for recovering carboxylic acids from a fermentation broth
Carboxylic acids are recovered from a fermentation broth by adjusting the pH of a fermentation broth comprised of a carboxylic acid to at least about 6.0 and then heating the pH-adjusted broth to a...
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6214231 |
System for operation of multiple membrane filtration assemblies
Limitation of the number of cassettes in an assembly currently used for the production of permeate is obviated by grouping plural cassettes into racks one or more of which may be isolated while...
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6146535 |
Organic recovery method using hollow fiber microfilters
There is disclosed a system for separating oil and other immiscible organic materials from a liquid body or from a mixture with an aqueous medium. The system includes the use of a plurality of...
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6117327 |
Deashing and demetallization of used oil using a membrane process
A method suitable for treating used oil to remove ash and metal contaminants therefrom with minimum oxidation of the oil, the metal including at least one of the components of iron, lead, copper,...
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6103125 |
Zero waste effluent water desalination system
A water desalination and softening system that can be used in a home or commercial environment which recirculates water past a membrane filter element in a manner to self clean the membrane and to...
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6075073 |
Latices from emulsified hydrocarbon rubber solutions by membrane separation
Rubbery polymers in hydrocarbon solutions are emulsified in aqueous liquids and converted to latices by partitioning the emulsion through a membrane of selective permeability to the hydrocarbon...
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6045699 |
Method of filtering blood
This invention provides a method of filtering blood using a filtering material comprising glass fiber filter, capable of obtaining a desired amount of plasma or serum without hemolysis and leakage...
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5958243 |
Apparatus and method for membrane filtration with enhanced net flux
A membrane filtration system which uses pump speed controllers to control flow rate and pressure during both the filtration cycle and the backwash cycle. The pump speed controllers operate by...
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5879558 |
Water conserving reverse osmosis unit and method of operating it
A reverse osmosis water purification system in which the concentrate water which is normally produced by the process is not disposed of by routing it to a drain line or otherwise, but is redirected...
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5879557 |
Procedure for filtration of fluids using MF modules
A process is described for filtration of fluids, particularly of beverages like beer, utilizing microfiltration membrane modules operated in alternating filtering cycles and cleansing cycles, in...
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5876604 |
Method of gasifying or degasifying a liquid
A method of adding or removing a gas to or from a solution of the gas in a liquid involves transferring the gas between the liquid and another fluid through a membrane unit. The membrane unit...
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5814498 |
Process for the recovery of organic acids and ammonia from their salts
A process recovers organic acid and ammonia from their salts preferably obtained from microbial fermentation of a saccharide in a nutrient. The fermented materials is passed through a...
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5731164 |
method of checking the rate of removal of pyrogenic substances, in particular viruses, from organic material
This invention provides a process for checking the removal rate of pyrogenic substances, in particular viruses, from organic material. The material to be purified is passed through an ultrafilter...
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5639374 |
Water-conserving pressure-maintaining reverse osmosis system
A reverse osmosis water purification system in which the concentrate water normally produced by the process is not disposed of by routing it to a drain line or otherwise, but is redirected to the...
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5522995 |
Process for recovering organic acids from aqueous salt solutions
A crude aqueous mixture of basic salts of an organic acid, free organic acid, and impurities is mixed with carbon dioxide under pressure and applied to a membrane such as a reverse osmosis or other...
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5490937 |
Tangential flow filtration process and apparatus
Processes and apparati are provided for separating species of interest from a mixture containing them which comprises subjecting the mixture to tangential-flow filtration, wherein the filtration...
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5468847 |
Method of isolating and purifying a biomacromolecule
The invention provides a method of separating a biomacromolecule which comprises the steps of providing a separation system including a filter element which comprises a composite filtration medium,...
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5385672 |
Method for preparing membranes with adjustable separation performance
Methods for adjustable separation of solutes and solvents involve the combination of the use of a maximally swollen membrane and subsequent vacuum depressurization exerted on the permeate side of...
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5378369 |
Solvent extraction
The invention provides a method for the solvent-extraction of β-carotene from an aqueous algal biomass suspension, whereby a vegetable oil which is immiscible with water is mixed with an aqueous...
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5354474 |
Dynamic membrane separation process for improved selectivity
A membrane separation and purification process, and the associated apparatus, provides separation of one membrane-permeable component from another, where both are contained in a multiple-component...
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5342863 |
Ultrafiltration processes for the recovery of polymeric latices from whitewater
Polymer is recovered by ultrafiltration from a whitewater waste stream generated during the production of a polymer latex. The whitewater stream is circulated through an ultrafiltration system in...
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5266202 |
Reverse osmosis treatment process
This invention relates to a reverse osmosis treatment process, particularly a stable reverse osmosis treatment process which prevents a lowering in throughput capacity by carrying out treatment...
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5258122 |
Cross-flow filter device with pressure-balancing feature
This invention relates to cross-flow filtration and more particularly towards disposable, compact cross-flow filters and filtration methods incorporating a novel pressure-balancing arrangement...
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5245105 |
Separation of aluminum alkyls from olefins using polyphenylene oxide membrane
A process for separating a mixture of aluminum alkyl and alpha-olefin comprises contacting, under an elevated pressure of at least about 300 psig, an organic solvent stable, polyphenylene...
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5207916 |
Reverse osmosis system
A single, reverse osmosis membrane system having a double-pass, product-staged design using first and second banks of membranes in series, with excessive pressure supplied by the pump to the feed...
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5203969 |
Method of separating and recovering components of mixtures via pervaporization
A method of separating and recovering components of a mixture having a gap in the range of miscibility and having organic compounds and water in a pervaporization process with the aid of membranes....
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5190667 |
Separation of gases and solutes by augmented diffusion in counterflow
A method and systems for separating fluids of differing masses from a mixture by enhanced diffusion wherein the method and systems embody at least one cycle wherein the mixture of fluids of...
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5167823 |
Oscillatory liquid membrane support
The described apparatus is a multilayer liquid membrane support structure that can be used in devices for separating or purifying a desired chemical species. A inner layer is sandwiched between two...
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5160625 |
Method for flow field flow fractionation
An apparatus for flow field flow (FFF) fractionation comprises: a porous hollow fiber (1) which extends longitudinally between end-fittings (2, 3) of a tube (4), one end of said fiber (1) being...
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