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5651893 |
Disinfection of dialysis machine
High level disinfection of a home hemodialysis machine is achieved without the use of disinfection chemicals. The machine has a water treatment module, an extracorporeal circuit and a dialysate...
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5647984 |
Extracorporeal fluid treatment systems selectively operable in a treatment mode or a disinfecting mode
An extracorporeal fluid treatment apparatus which is selectively operable in a disinfecting mode or a treatment mode includes an inlet line, a pre-treatment portion, an input pump, a heater, an...
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5647973 |
Reverse osmosis filtration system with concentrate recycling controlled by upstream conductivity
A filtration system comprising a reverse osmosis unit having an inlet thereto, a permeate outlet and a concentrate outlet wherein a first conduit extends from a source upstream of the reverse...
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5645734 |
Dialysate separation method
A method for maintaining separation of old and new dialysate in a dialysate preparation tank is disclosed. The new dialysate is stored in the tank at a first temperature and withdrawn from the...
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5641405 |
Method and apparatus for purified pulse peritoneal dialysis using a single pump
The present invention provides an improved peritoneal dialysis method and system. The system comprises a single catheter that is placed in the patient, a source of dialysate, and a diatyzer in...
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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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5607592 |
Process and device for the separation of substances dissolved in the washing water used in processing bath of a photographic film
The present invention concerns a process and a device for the separation of substances dissolved in the washing waters used in a processing bath for a photographic film. The photographic film,...
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5607593 |
Installation for making water potable with submerged filtering membranes
A water-treatment installation, notably with a view to making water potable, includes a reactor demarcating at least one treatment chamber, the reactor comprising a conveying assembly to convey the...
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5591344 |
Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof
A dialysis machine is disclosed that incorporates a water treatment module, a dialysate preparation module having a dialysate circuit, and an extracorporeal circuit including a dialyzer and...
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5582721 |
Apparatus for separating a liquid mixture
An apparatus for separating a liquid by pervaporation, which comprises at least one pervaporation membrane module unit for purifying a liquid to be treated, a supply line connected to said...
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5569384 |
Process for recovering the overspray of aqueous coating agents during spray application in spray booths
A process is described for recovering the overspray of aqueous coating agents during spray application in spray booths in which aqueous circulating liquid is circulated for the purpose of...
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5562828 |
Method and apparatus for recovering acid and metal salts from pricklining liquors
Spent acid contaminated with metal salts in a hot solution removed from a metal pickling bath is directed to one side of an anionic membrane to separate acid ions from the metal salt solution by...
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5556539 |
Apparatus for separating a liquid mixture by pervaporation
An apparatus for separating a liquid by pervaporation, which comprises at least one pervaporation membrane module unit for purifying a liquid to be treated, a supply line connected to said...
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5552055 |
Photofinishing effluent purifying process and apparatus
The invention provides a process and apparatus for on-site purification of photofinishing effluent produced by mini-lab photofinishing apparatus and the like. The process includes passing the...
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5547579 |
Process and apparatus for purification of contaminated acids
Acids contaminated with multi-valent metal salts are purified by a process which involves treatment in an acid sorption unit (ASU) and a nanofiltration unit (NFU). The feed solution can first be...
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5529685 |
Dialysis system for returning blood in the system after the completion of dialysis
The dialysis apparatus in accordance with the present invention is provided with main piping connecting a blood inlet and a blood outlet, and having disposed therealong a blood pump, a dialyzer,...
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5520815 |
Process for removal of lead and oil contaminants from machining coolant solutions
The process for removal of contaminants from coolants involves using an inorganic hydrophilic membrane, such as a ceramic membrane with varying pore sizes, to remove lead particulates, including...
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5520816 |
Zero waste effluent desalination system
The present invention is directed to a water desalination system that can be used in a home or commercial entity which uses a reverse osmosis or nanofilter membrane element in a unique flow...
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5514282 |
Food processing wastewater treatment and recovery process
A system and related method for the treatment of dairy and other food processing plant wastewaters provides recoverable by-products from two separate stages and a final water effluent clean enough...
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5512178 |
Water treatment method and apparatus therefor
In a water treatment method and an apparatus therefor, a high purification step comprising a precision filter and an ion-exchange resin is added to a treatment system having ozone supply units,...
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5490921 |
Two water purifying, recirculating and heating apparatus
A water purifying and heating apparatus having a pump supplying water to a purifying filter connected by conduit to a boiler and capable of being used with domestic electric power supply. The load...
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5490925 |
Assembly for the on-line flushing and filling of an extracorporeal blood circulation system of dialysis machines
A dialysis machine assembly having an internal flushing and filling facility for a blood flow circuit of the assembly is disclosed. The dialysis machine assembly includes dialyzer having a membrane...
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5480665 |
Apparatus and method for removing compounds from a solution
Method and apparatus for the treatment of fluids, particularly wine, to remove unwanted substances. The wine is treated in a reverse osmosis (R.O.) treatment unit, generating a retentate and a raw...
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5456842 |
Method for recycling cleaning fluid
A method and apparatus for recycling water based workpart cleaning fluid of the type used to wash workparts (B) free of soils, such as emulsified and non-emulsified cutting oils and lubricants,...
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5456827 |
Compressor system having a device for continuous cleaning of the auxiliary or working liquid
The auxiliary or working liquid is cleaned by being urged through a pervaporation membrane module (3), then the permeate stream from the membrane module is led through a condenser (4), where the...
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5454952 |
Method and apparatus for fractionation of sugar containing solution
A method of removing ash from sugar containing solutions comprises contacting the sugar containing solution against one side of an ultrafiltration membrane with a stripping fluid to strip away...
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5434381 |
Apparatus for filtering machining liquid of an electrical discharge machine
An apparatus for filtering machining liquid of an electrical discharge machine. The apparatus includes a plurality of cross flow filters placed in series with one another and with a pump drawing...
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5433843 |
Marine aquarium with a dialysis water purification system
A marine aquarium or a marine holding system has a tank connected to a closed loop circulation system. The closed loop communicates with an open loop through an osmotic and hydrostatic pressure...
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5431811 |
Artificial kidney with device for filtering dialysis liquid
A filtration device includes an ultrafilter having an inlet chamber, an outlet chamber, and an ultrafiltration membrane separating the inlet chamber from the outlet chamber. An inlet line flow...
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5409613 |
Recycling and recovery of aqueous cleaner solutions and treatment of associated rinse water
A process and apparatus are disclosed for separating an aqueous cleaner solution from contaminants that accumulate as the cleaner is used in washing manufactured objects, such as machine parts or...
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5403479 |
In situ cleaning system for fouled membranes
A method and cleaning system is disclosed for cleaning the outer surface of a fouled microfiltration (MF) or ultrafiltration (UF) semipermeable hollow fiber membrane after its initial stable...
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5403490 |
Process and apparatus for removing solutes from solutions
An improved process and system for treating a solution of a solute which can be concentrated by forcing a portion of the solvent through a semi-permeable membrane and converted to the solid phase...
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5401523 |
Production of sterile milk through dynamic microfiltration
A method for treating raw milk to produce treated milk having a lower bacterial content than the raw milk. The milk is homogenized and within about 5 minutes from the homogenization, subjected to...
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5395514 |
Ultrafiltration system and assembly
A portable ultrafiltration device is disclosed comprising a centrifugal pump, membrane filter and an eductor means, arranged at or before the inlet of the centrifugal pump in a recycle loop from...
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5393390 |
Treatment and recycling of overspray from the spray application of waterborne coatings
A process and apparatus for treating overspray from the spray application of waterborne coatings is provided, which includes at least an electrophoresis separation step (means) for recovering...
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5372722 |
Oil separator with integrated microfiltration device
A device is provided for separating oil and fat from a liquid mixture. The device includes a tank divided by a baffle plate into two separate compartments which leaves an opening between the...
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5368726 |
Apparatus for treating and regenerating spent caustic
The present invention relates to an apparatus for treating and regenerating a spent caustic solution at ambient temperatures which includes means for oxidizing the spent caustic stream with an...
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5368725 |
Apparatus for stop flow membrane probe analysis
Apparatus for stop flow membrane probe analysis which apparatus is especially suitable for on-line analysis, the apparatus necessarily including five parts. The first part is a reservoir for...
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5366635 |
Desalinization system and process
Desalinization apparatus and method for removing salt from sea water in which the separator is positioned at a location a substantial distance below the surface of a body of sea water. The head...
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5366630 |
Artificial kidney and a method of controlling it
The artificial kidney includes an exchanger having two compartments separated by a semipermeable membrane, the first compartment of which is connected to a circuit for conveying a flow of blood...
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5364534 |
Process and apparatus for treating waste liquids
Process for purifying and filtering fluids, especially water, containing suspended contaminants and using gravity separation means as well as membrane separation means, in a finishing stage,...
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5364525 |
Device for purifying water
A device for purifying water comprises a filter unit (10) containing an osmotic membrane and provided with an inlet (11), a filtrate outlet (12), a return conduit (14) for a recirculating large...
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5356374 |
Process for treating blood with polyimide carriers
The present invention relates to a process for treating blood. The process involves separating the blood into plasma and cellular components. The plasma component is passed through a column...
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5354466 |
Filtration system with improved backwashing capability
A filtration system is disclosed which operates with a single supply pump to achieve backwashing in an expeditious manner. The system includes a fluid supply source for a feed fluid to be filtered,...
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5344566 |
Deleading wastewater reduction process
This invention provides a fast and efficient method and process to remove lead from washwater streams that are part of the deleading process. By employing a two step process using epsom salts as a...
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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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5336413 |
Process and apparatus for the purification of water
Process and apparatus for the purification of water, oxygen/ozone-gas mixture is introduced under high pressure in the water to be purified, and the thus obtained oxygen/ozone-gas mixture enriched...
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5330654 |
Flavor concentrates and their production
A process for preparing a natural flavor concentrate comprising flavor chemicals derived from a fruit or vegetable juice distillate, wherein the distillate is subjected to reverse osmosis, is...
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5316682 |
Gas micronizer and purification system and related methods
Apparatus and methods for the controlled introduction of submicron-sized bubbles into a fluid stream. The gas-micronizer apparatus of the present invention operates in a manner that maximizes the...
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5285903 |
Method for recovering particulate and scavenging formaldehyde in a wood panel fabrication process
A thin film membrane filtration system recovers particulate from the waste water stream of a wood panel fabrication process to a desired concentration of approximately 30-50% solid by weight. The...
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