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Class 210/668 - By chemically modifying or inhibiting dispersed constituent


Subclass of Class 210 - Liquid purification or separation
Definition: Process in which the additional treatment includes rendering
No. of patents: 259
Last issue date: 04/17/2012


1              
NumberTitleIssue Date
8158005Functional composites formed from colloidal polymer particles with photocatalytic metal oxide (MO) nanoparticles
Microcomposites comprising titanium dioxide (TiO2) nanoparticles embedded within cross-linked, thermally responsive microgels of poly(N-isopropylacrylamide) are disclosed. Interpenetrating linear chains of poly(acrylic acid) functionalize the nanoparticles for dispe...
04/17/2012
7981298Process for removal of contaminants from industrial streams
A method and system for removing from an aqueous system which is contaminated therewith: (1) mercury present as colloids, ions and/or organically bound compounds, and (2) hydrocarbons solubilized, dispersed, and/or emulsified in the said system. Pursuant to the inve...
07/19/2011
7892436Compositions and methods for removing arsenic in water
Compositions and methods and for contaminants from water are provided. The compositions comprise ferric hydroxide and ferric oxyhydride coated substrates for use in removing the contaminant from the water. Contacting water bearing the contaminant with the substrates...
02/22/2011
7875185Removal of residual sulfur compounds from a caustic stream
A process for the removal of residual sulfur compounds from a liquid caustic stream is disclosed. One embodiment of my invention adsorbs disulfides from a caustic stream using an activated carbon adsorbent while another combines both oxidation and adsorption in sing...
01/25/2011
7473370Water disinfection method using simultaneous multiple disinfectants
A water disinfection system using simultaneous multiple disinfectants includes a completely stirred tank reactor (CSTR) and a contact basin or clearwell acting as a plug flow reactor (PFR). The CSTR receives ammoniated water and free chlorine, and generates multiple...
01/06/2009
7459087Water treatment
A method of treating water to remove fluoride ions from the water, thereby to reduce the dissolved fluoride content of the water, is provided. The method includes, in a contacting step, contacting water containing dissolved fluoride ions with alumina, to cause the f...
12/02/2008
7393454Elimination of metal ions from aqueous effluents
Method for the elimination of metal ions from aqueous media, such as zinc, lead, chrome, copper, iron, aluminium, manganese, cadmium, cerium or silver and mixtures of the metals present in a trace or ultratrace state in aqueous effluents, by adsorption on a solid ch...
07/01/2008
7381334Method for inhibiting microbial growth in liquid nutrients
A method for making a web having a metal-ion sequestering agent and treating a liquid using the web. The method of making the web includes electrostatically providing at least one metal-ion sequestering agent and/or antimicrobial agent. The web can be used to tread ...
06/03/2008
7361279Removing metals from solution using metal binding compounds and sorbents therefor
Removing metals from metal containing acidic solutions, such as contaminated waters and industrial wastewaters, is described. An amphipathic, heterocyclic, metal-coordinating compound (an extraordinaiy ligand) and a sorbent are added to a solution, such that the add...
04/22/2008
7361280Catalytic activated carbon for removal of chloramines from water
This application discloses a method for enhanced removal of chloramines from a chloramines-containing fluid media by contacting said media with a catalytic activated carbon characterized by having present in the graphene structure of the carbon from 0.01 to 10 wt % ...
04/22/2008
7361632Water soluble glass as corrosion protector in dishwashing machines
A zinc-containing, water-soluble glass composition comprising from 41 to 54 mole % of P2O5, 10 to 30 mole % of alkali oxides, up to 5 mole % of SO3 and up to 25 mole % of ZnO. ...
04/22/2008
7339671Apparatus and method for monitoring biological cell culture
An apparatus and method for real-time and on-line monitoring the cell growth and concentration in a dynamic cell culture environment, with techniques that suppressing noise from ambient light, non-uniform scattering distribution, bubble and interface reflection effe...
03/04/2008
7335246Contaminant adsorption and oxidation via the fenton reaction
Contaminated fluids are treated by adsorbing contaminant onto a sorbent to concentrate the contaminant and then oxidizing the contaminant via the Fenton and related reactions. Iron is attached to the sorbent or can be added in solution with an oxidant. Both systems,...
02/26/2008
7329355Method for absorption of hydrocarbons and low-polarity chemicals
The present invention relates to methods of recovering hydrocarbons or low polarity organic chemicals from hard surfaces, water and water surfaces, in their vapor state and from porous substrates. The hydrocarbons or low-polarity organic chemicals may be included in...
02/12/2008
7320758Method for control of microorganisms in metalworking fluid
A method for disinfecting microorganisms in metalworking fluids without leaving behind unacceptable amount of chemicals in the treated fluids. The method comprises passing the fluid in a recirculating cooling system through a filter, which contains a demand disinfec...
01/22/2008
7314569Treatment of arsenic-contaminated water using akaganeite adsorption
The present invention comprises a method and composition using akaganeite, an iron oxide, as an ion adsorption medium for the removal of arsenic from water and affixing it onto carrier media so that it can be used in filtration systems. ...
01/01/2008
7314553Pool filter cleaning device
A pool filter cleaning device comprising a containment chamber having a upper end, a lower end, and a circumferential sidewall. The sidewall has a water deflecting portion adjacent the upper end and the containment chamber is adapted to receive a dirty pool filter. ...
01/01/2008
7309429Granular filtration device for water
The invention is a granular media filter for in-line liquid applications that allows media as fine as 44 micron to be used to increase the removal of contaminants from the liquid with adequate flows consisting of a specific arrangement. A flow distributor has a non-...
12/18/2007
7303683Microorganism-removing filter medium having high isoelectric material and low melt index binder
A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo...
12/04/2007
7300585Method of treatment of effluent stream
A method for treating an effluent stream containing material which it is desired to remove from the effluent stream comprises treating the effluent stream with a solution of an acid and a first polymer to reduce the pH of the thus-treated stream to a range of about ...
11/27/2007
7300589Process for removing arsenic from aqueous streams
Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing ...
11/27/2007
7282153Method for removal of arsenic from water
A method for removing arsenic from water by contacting water with a strong base anion exchange resin comprising at least one metal ion or metal-containing ion whose arsenate salt has a Ksp no greater than 10−5, provided that the metal is not ...
10/16/2007
7273556Method for treating water containing manganese
The invention concerns a method for treating water for human consumption, so as to eliminate manganese and possibly other metals comprising steps which consist in: causing said water to pass at least over a bed of filtering material (3) consisting at least pa...
09/25/2007
7273558Method and device for reducing scale formation and/or corrosion in systems which conduct liquids
The invention relates to a method and a device for reducing scale formation and/or corrosion in systems which conduct liquids or are in contact with liquids. According to the invention, this is achieved without reducing the quantity of hardness constituents containe...
09/25/2007
7270796Ammonium/ammonia removal from a stream
In one embodiment, an ammonium removal method can comprise: removing a multivalent cation from a stream comprising ammonium to form a treated stream; converting the ammonium in the stream to ammonia by increasing the pH of the stream; and separating the ammonia from...
09/18/2007
7267235Greywater recycling apparatus
The invention provides a unitary device for converting an open-top container into a greywater recycling apparatus comprising a vessel lid having a submersible float switch-operated pump depending therefrom by extension means sized to enable the positioning of the pu...
09/11/2007
7264726Nanocrystal-containing filtration media
The invention relates to filtration media having nanocrystals of metal oxides, encapsulated in or impregnated into a binder matrix, which binds together particles of activated carbon. The filtration media can be compressed into a filtration block, has low pressure d...
09/04/2007
7258798Potable water treatment plant and method of maintaining same
A package plant for treating raw water to yield potable water. The package plant includes an inlet for raw water, followed by an ozonator for disinfecting the water. Next is provided an up flow roughing filter including a chemically active layer, on top. A slow sand...
08/21/2007
7247242Arsenic removal from water
Methods for removing arsenic from water by addition of inexpensive and commonly available magnesium oxide, magnesium hydroxide, calcium oxide, or calcium hydroxide to the water. The hydroxide has a strong chemical affinity for arsenic and rapidly adsorbs arsenic, ev...
07/24/2007
7247240Method for treating waste water
The invention provides a method for treating waste water wherein organic and inorganic substances in waste water can be treated at high levels regardless of the concentration, and a unit itself can be made compact. The method of the invention is a method for treatin...
07/24/2007
7229560Sack-based processes for recovering oil floating on water
One or more water- and oil-porous containers or sacks are made of a pair of mesh sheets affixed together and stiffened around their perimeter. The sacks can be partially filled with a multitude of tubular bodies made of an oil-entrapping polymer, which have their lo...
06/12/2007
7229552Water purification apparatus and system
The invention relates to a two-stage design for a water purification system, with water to be purified first passing through a first stage containing particulate filtration media, and a second stage containing a porous filtration block. The particulate filtration me...
06/12/2007
7202679Contactor having conductive particles in a hole as a contact electrode
A contactor is provided which contactor comprises an insulating substrate, a concave portion formed in the insulating substrate and extending in a perpendicular direction from a surface thereof, and elastic conductive particles disposed in the concave portion. A par...
04/10/2007
7201856Water treatment compositions
Compositions, methods and kits for purifying and clarifying and/or nutrifying contaminated drinking water and which comprise a primary coagulant material, a microbiocidal disinfectant and an oxidant system. Highly preferred compositions also contain one or more of a...
04/10/2007
7194869Turbine exhaust water recovery system
The exhaust gas of a turbine engine can include water vapor. Aspects of the invention relate to various systems for recovering water from the exhaust gas of a gas turbine engine. In one system, a portion of the exhaust gas can be routed to an absorption chiller. In ...
03/27/2007
7195923Ratiometric determination of glycated protein
The present invention provides methods for determining a ratio of an amount of a glycated form of a protein to a total amount of the protein in a sample containing the glycated protein, the glycosylated protein, or the glycoprotein. The method incorporates lateral f...
03/27/2007
7186344Membrane based fluid treatment systems
A process for removing soluble and insoluble inorganic, organic, and microbiological contaminants from a fluid stream employing a pretreatment module, a post-treatment module, a recycle stream module or any combination thereof, and a membrane module, is provided. Th...
03/06/2007
7179581Resist composition and patterning process
Resist compositions comprising nitrogen heterocyclic compounds having a pyrrole or nitrogen-bearing 5-membered ring structure and a polar functional group have an excellent resolution and an excellent focus margin and are useful in microfabrication using electron be...
02/20/2007
7169297pH adjuster-based system for treating liquids
The invention features a system for treating liquid including a liquid treatment device comprising adsorbent media for removing a substance from liquid and a pH adjuster device located upstream of the liquid treatment device relative to a direction of flow of the li...
01/30/2007
7169304Porous polymer water filter and methods of use in refrigeration
The filtration device of the present invention relies on materials and methodologies that achieve the formation of a structural matrix that may later accommodate the addition of other adsorbent materials as opposed to merely binding adsorbent materials together thro...
01/30/2007
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