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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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6645383 |
Process and apparatus for blending product liquid from different TFC membranes
A process and apparatus for membrane treatment of a feed liquid to form a product liquid includes feeding a feed liquid, typically an aqueous solution such as tap water, to a primary membrane. The...
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6632356 |
Separation membrane end cap
A separation end cap adapted for connecting adjacent separation elements is provided. The end cap may be located at the distal ends of a separation element and is adapted for connection with a...
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6616847 |
Method for producing crystals from solutions
The invention relates to a method for producing crystals from thermally sensitive solids. According to this method, the solid is dissolved in at least one solvent and the solution is concentrated...
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6607668 |
Water purifier
Water purifier using membranes, ion exchange resins and electricity to remove ionic, organic and suspended impurities from water to produce high quality, pure water. Supply water is pre-treated by...
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6602418 |
Solution dewatering with concomitant ion removal
One of the biggest needs in the separations and waste handling and reduction area is a method for dewatering ion-containing solutions. Unexpectedly, it has been found that phosphazene polymers can...
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6602419 |
Process for the recovery of iodine from aqueous solutions containing iodinated organic compounds
A process for the recovery of iodine from mother liquors or wastes containing iodinated organic compounds, by mineralisation of organic iodine and subsequent transformation of the formed iodide...
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6592763 |
Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unit
A novel method for purifying, by means of an essentially closed circuit water purification system, an aqueous flow from a processing unit includes the steps of: (a) supplying to a bioreactor, and...
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6582605 |
Method of treating industrial waste waters
A method of treating industrial wastewaters is provided. Specifically, the wastewater includes one or more organic contaminant materials and is pre-treated prior to filtering by the following steps...
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6582385 |
Hemofiltration system including ultrafiltrate purification and re-infusion system
A hemofiltration system is provided in which ultrafiltrate is purified by reverse osmosis for reinfusion. Non-sterile infusate concentrate is dialyzed into the purified ultrafiltrate and combined...
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6582606 |
Microfiltration using activated carbon
A microfiltration process of a fermentation-derived product comprising adding activated carbon to a solution of the fermentation-derived product prior to or during the microfiltration process at a...
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6572902 |
Process for producing improved alkaline drinking water and the product produced thereby
A process for producing improved alkaline water includes filtering potable source water to remove selected particles and then purifying the filtered water. Selected alkaline minerals are added to...
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6565758 |
Systems and methods for dispensing, collecting and processing wash fluid
A system for dispensing, collecting, and processing wash fluid includes a first movable support frame including a first tank that stores clean wash fluid, a first pump that pressurizes the clean...
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6540487 |
Pressure exchanger with an anti-cavitation pressure relief system in the end covers
A pressure exchanger for simultaneously reducing the pressure of a high pressure liquid and pressurizing a low pressure liquid. The pressure exchanger has a housing having a body portion; with end...
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6537456 |
Method and apparatus for high efficiency reverse osmosis operation
A process for treatment of water via membrane separation to remove hardness and non-hydroxide alkalinity by simultaneous removal in a weak acid cation exchange resin. The process includes...
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6533938 |
Polymer enhanced diafiltration: filtration using PGA
A method is describe for removing metal ions of interest from aqueous solutions containing low concentrations of the metal ions of interest. The method involves the use of a microbially produced...
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6524483 |
Method of retrofitting an existing RO system to zero waste
Diverse existing non-zero waste reverse osmosis systems are retrofittable by unskilled labor to become zero waste by a method using integrally-packaged subassemblies ( 1, 2, 3 ) placed in-line in...
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6521130 |
Process for producing composite semipermeable membrane
When forming a separating functional layer containing crosslinked polyamide, by carrying this out in the presence of 1) carboxylic acid ester with a total of 8 or more carbons, or 2) carboxylic...
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6521124 |
Reverse osmosis liquid filter system with ultraviolet filtration
The present invention provides a multi-element filtering system assuring serial filtration of a liquid through multiple filter cartridges while enabling flushing without requiring removal of the...
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6508937 |
Fresh water generator and fresh water generating method
An active carbon cartridge is provided in the preceding stage to a fresh water generating cartridge. A water feed valve is connected to a raw water inlet of the active carbon cartridge. A bypass...
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6509454 |
Free solution ligand interaction molecular separation method
The present invention is directed to novel methods for enhancing the ability to separate a species of interest from other different species present in a free solution mixture thereof which takes...
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6508936 |
Process for desalination of saline water, especially water, having increased product yield and quality
A desalination process is disclosed which combining two or more substantially different water treatment processes in a unique manner to desalinate saline water, especially sea water, to produce a...
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6506304 |
Method for the regeneration of supercritical extractant
A method for recovering supercritical extractant, such as supercritical CO 2 , from a mixture containing the supercritical extractant and a solute is disclosed, which includes contacting the...
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6506306 |
Method and an apparatus for treating wastewater from a chemical-mechanical polishing process used in chip fabrication
Wastewater from a chemical-mechanical polishing process (CMP) used in semiconductor chip fabrication has hitherto been, and is still being, discharged into the public sewage system after chemical...
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6506305 |
Methods of isolating urea, urea compositions and methods for producing the same
Urea is readily isolated and recovered from natural products. Urea can be brought into the permeate side by treating a urea-containing fraction extracted from natural products or sewage containing...
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6488856 |
Process for purifying a liquid hydrocarbon product
The invention relates to a process for purifying a liquid hydrocarbon product consisting of 5% by weight or less of high molecular weight contaminants having a molecular weight of at least 1000,...
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6478968 |
Method for filtering a three-phased reaction mixture
A method for filtering a three phase reaction mixture comprising a liquid phase, an undissolved solid catalytic phase and a gas phase includes tangentially filtering through a membrane filter at...
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6468431 |
Method and apparatus for boosting interstage pressure in a reverse osmosis system
An apparatus and method suitable for use in a reverse osmosis desalinization system having a first process chamber has a first reverse osmosis membrane therein, a first feed inlet, a first permeate...
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6464876 |
Process and apparatus for a mixture resolution
Disclosed is a process for the resolution of a mixture into at least one first fraction and one second fraction, the respective compositions of said fractions differing by at least one element. The...
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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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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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6464881 |
Inorganic nanofiltration membrane and its application in the sugar industry
The invention concerns an inorganic nanofiltration membrane with a detachment threshold between 100 and 200 daltons and comprising: a multichannel ceramic monolith support consisting of a mixture...
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6461514 |
High water recovery single stage membrane process
Disclosed is an economical single stage membrane process intended to provide very high overall water recoveries from natural sources or wastewater containing high concentrations of hardness and...
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6461512 |
Method of disinfecting a deionized water producing apparatus and method of producing deionized water
A deionized water producing apparatus includes a pretreatment apparatus having a reverse osmosis apparatus, and an electrodeionization apparatus having a diluting compartment filled with an ion...
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6451209 |
Method and a system for the treatment of water
According to a method and a system for purifying bathing water for a swimming pool ( 1 ), water is passed through a filter ( 2 ) for filtration of the water. A subflow ( 6 ) of the filtered water...
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6428705 |
Process and apparatus for high flow and low pressure impurity removal
A process for removing contaminants from large volumes of wastewater is disclosed. The process involves treating a wastewater stream containing the contaminant with a coagulant that reacts with the...
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6423223 |
Multi-element, reverse osmosis, liquid filter system with flushing and filtering circuits
The present invention provides a multi-element filtering system assuring serial filtration of a liquid through multiple filter cartridges while enabling flushing without requiring removal of the...
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6420185 |
Water contamination concentration apparatus and process
An apparatus and methods of utilizing a semi-permeable membrane to concentrate contaminants in a portion of an Ultra Pure Water stream to levels which are detectable by an on-line analyzer. This...
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6413425 |
Reverse osmosis composite membrane and reverse osmosis treatment method for water using the same
A reverse osmosis composite membrane comprises a sponge layer, and a separation layer formed on a surface of the sponge layer, wherein at least one substance selected from the group consisting of...
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RE37759 |
Coiled membrane filtration system
A method and apparatus for achieving reverse osmosis, microfiltration, nanofiltration and ultrafiltration, produces Dean vortices against a membrane surface which is advantageously in a form of a...
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6402956 |
Treatment system and treatment method employing spiral wound type membrane module
In a treatment system, a spiral wound type membrane module is provided on a preceding stage of a reverse osmosis membrane separation device for performing pretreatment with the spiral wound type...
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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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6395182 |
METHOD FOR PURIFYING WATER, IN PARTICULAR GROUND WATER, UNDER ANAEROBIC CONDITIONS, USING A MEMBRANE FILTRATION UNIT, A DEVICE FOR PURIFYING WATER, AS WELL AS DRINKING WATER OBTAINED BY USING SUCH A METHOD
The present invention relates to a method for purifying water, in particular ground water, under anaerobic conditions, using a membrane filtration unit, wherein the following steps are carried out:...
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6391205 |
Osmotic desalinization process
Desalinization of seawater is accomplished through the use of a forward osmosis process, which relies on a series of steps involving the opposition of various aqueous solutions across...
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6391206 |
Method for recovery of aqueous wash in phosphate chemical conversion and apparatus for metal surface treatment
This invention is related to a method for recovery of aqueous wash in a phosphate chemical conversion of a shaped metal product involving carrying out chemical conversion and subsequent cleaning...
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6387272 |
Process for utilizing liquid manure material
A process for utilizing the material of ammonium-containing effluent which contains further soluble constituents and, possible additional solids, comprising: a) optionally separating off the...
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6383392 |
Process for concentrating epigallocatechin gallate
The present invention is a process for concentrating aqueous epigallocatechin gallate (EGCG) solutions by feeding an aqueous EGCG solution to at least one membrane module under pressure to provide...
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6375849 |
Integrated environmental control system and humidification system
In an aircraft, tap water is filtered, vaporized and injected into a trim line of an environmental control system. Filtering is performed by a reverse osmosis filter. Hot, humidified air leaving...
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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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6358754 |
(Bio)chemical reagent solid phases, process for their production and their applications
Novel solid phase reaction supports are disclosed. The solid phase reaction supports include (a) a solid phase carrier having a multiplicity of NH 2 functional groups; (b) a coupling compound...
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