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Class 204/515 - Inorganic siliceous or calcareous material prepared, separated, or treated (e.g., clay, earth, concrete, asbestos, glass, etc.)


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Process involving preparation, separation, or treatment
No. of patents: 106
Last issue date: 05/03/2011


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NumberTitleIssue Date
7935236Electro-osmotic pulse (EOP) treatment method
A system and method for de-watering porous material, e.g., concrete. In select embodiments, durable, dimensionally stable anodes (DDAs), preferably configured as arrays on a strip, are impressed into the concrete and a pulsed signal is provided by a DC power supply ...
05/03/2011
7763155Electro-osmotic pulse (EOP) system for de-watering around manmade structures and method of use therefor
An Electro-Osmotic Pulse (EOP) system is used to dewater structure, both natural and manmade. Preferably, the system employs durable, dimensionally stable anodes affixed to structure in a configuration designed to maximize electrical contact with the structure and m...
07/27/2010
7303916Sustained totipotent culture of selected monocot genera
A method is provided for generating sustained totipotent tissue cultures of a plant of the Class Monocotyledonae, and for micropropagating such plant in vitro, wherein immature inflorescence are cultivated to produce totipotent tissue which is suitable for sustained...
12/04/2007
7290959Electrode heating with remediation agent
A remediation method and system is disclosed. A plurality of conductors is installed into the subsurface to introduce electrical current to produce heat in the subsurface. One or more agents are released into the subsurface to cause or accelerate the decomposition o...
11/06/2007
7244360Water treatment process
The present invention provides a physical water treatment (PWT) method and apparatus to treat liquid coolants. Electrodes (22, 24) are provided in a coolant stream (21), and an alternating voltage is applied across the electrodes (22, 24) to pro...
07/17/2007
7179356Biomimetic pathways for assembling inorganic thin films and oriented mesoscopic silicate patterns through guided growth
A process directed to preparing surfactant-polycrystalline inorganic nanostructured materials having designed microscopic patterns. The process includes forming a polycrystalline inorganic substrate having a flat surface and placing in contact with the flat surface ...
02/20/2007
7150583Electro kinetic geosynthetic structure
An EKG structure comprising geosynthetic material associated with at least one conducting element wherein the structure comprises at least one core element substantially enclosed by at least one sheath, one or both comprising the geosynthetic material; the use there...
12/19/2006
7135102Method and system for dewatering particulate materials
A system and method for dewatering particulate materials employs an improved dewatering probe generally including a single non-conducting pipe having a plurality of holes or slots, an anode mounted on the pipe adjacent one end of the pipe, and a cathode mounted on t...
11/14/2006
7135131Proton conductive membrane and production method thereof
A proton conductive membrane according to the invention includes layered clay mineral powder which is a cation exchanger or an anion exchanger, and a crosslinking structure including an —O—SO2—O— group which crosslinks particles of the layered cla...
11/14/2006
7083565Solid-bowl centrifuge having a disk stack on the drum cover
The present invention is a solid-bowl screw centrifuge that includes a centrifugal drum. The drum has a drum casing and a screw with a screw body that is surrounded by a screw blade. The screw blade forms at least one screw spiral with a conveying path for transport...
08/01/2006
6984306Method for removing inorganic compounds from a section of soil
The invention relates to a method for removing inorganic compounds from a section of soil. By regulating an electric voltage applied between two or more electrodes (1, 2) disposed in the section of soil (3) to values equal or below the electrokinetic p...
01/10/2006
6919005Configuration and electro-osmotic pulse (EOP) treatment for degrading porous material
A configuration and treatment for degrading porous material, e.g., concrete, brick, or other masonry material, via rapid, efficient electro-osmosis. One application carries dehydration to an extent that it weakens a structure for demolition by significantly dehydrat...
07/19/2005
6916411Method for electrically controlled demolition of concrete
A method to demolish concrete that comprises electrically connecting rebar disposed within the concrete to a power supply, electrically connecting a counter electrode within electro-osmotic communication of the concrete to a power supply, and externally providing el...
07/12/2005
6866761Method for dehydrating a porous material
A method for dehydrating a porous material using electro-osmosis, includes applying a pattern of D.C. voltage pulses to an anode system embedded in the porous material, wherein the anode system is electrically interactive with a cathode structure embedded in earth, ...
03/15/2005
6596142Electro-thermal dynamic stripping process
A process is provided for vaporizing volatile contaminants present in soil and removing the contaminant vapors. The process involves heating the soil by passing current between electrodes buried in the soil and simultaneously injecting water through the e...
07/22/2003
6576116Hybrid joule heating/electro-osmosis process for extracting contaminants from soil layers
Joule (ohmic) heating and electro-osmosis are combined in a hybrid process for removal of both water-soluble contaminants and non-aqueous phase liquids from contaminated, low-permeability soil formations that are saturated. Central to this hybrid process ...
06/10/2003
6565724System and method for electrochemical stabilization of soil and the strengthened soil structure resulting from the above method
A plurality of rows of wells are drilled in the soil of the area to be stabilized, and then pairs of electrodes, i.e., an aluminum anode and a copper-graphite cathode connected to a source of a bipolar pulse current, are inserted into each well in such a ...
05/20/2003
6547940Biomimetic pathways for assembling inorganic thin films and oriented mesoscopic silicate patterns through guided growth
A process directed to preparing surfactant-polycrystalline inorganic nanostructured materials having designed microscopic patterns. The process includes forming a polycrystalline inorganic substrate having a flat surface and placing in contact with the fl...
04/15/2003
6521810Contaminant treatment method
The present invention provides a method for treating contaminated media. The method comprises introducing remediating ions consisting essentially of ferrous ions, and being peroxide-free, in the contaminated media; applying a potential difference across t...
02/18/2003
6486376Electrochemical system and method for rendering contaminated electrically conductive material nonhazardous
An electrokinetic method is disclosed for treating an electrically conductive material including hazardous contaminants, e.g. spent pot liner (SPL), to render such material non-hazardous....
11/26/2002
6413399Soil heating with a rotating electromagnetic field
A soil remediation system heats contaminated soil by generating a rotating sub-surface electromagnetic field. The system includes three electrodes disposed 120 degrees apart on a remediation circle. These electrodes are excited by AC voltages with 120 deg...
07/02/2002
6372109Method for dehydrating a porous material
A method for dehydrating a porous material using electro-osmosis, includes applying a pattern of D.C. voltage pulses to an anode system embedded in the porous material, wherein the anode system is electrically interactive with a cathode structure embedded...
04/16/2002
6270643Method of effecting fluid flow in porous materials
A method of effecting fluid movement in porous materials (e.g. metal reinforced concrete or porous geological media) by means of electroosmosis. The method comprises applying a sequence of voltage pulses between spaced apart electrodes (4, 5) having a reg...
08/07/2001
6258236Process for the electrochemical treatment of concrete
A process for the electrochemical realkalization of reinforced concrete comprises passing a direct electric current between an anode associated with a layer of alkaline electrolyte applied to an external surface of the concrete and a cathode which is loca...
07/10/2001
6255551Method and system for treating contaminated media
A process treats contaminated media and comprises detecting a non-uniform contaminated media property selected from electrical conductivity or electroosmotic permeability; and selectively applying an electric field to the contaminated media to effect the ...
07/03/2001
6254752Process for electrochemical treatment of concrete
An electrochemical process for the removal of chloride ions from reinforced concrete includes passing a direct current between (i) an anode in electrical contact with the adherent coating containing a water retaining adhesive material, and an aqueous elec...
07/03/2001
6228248Biomimetic pathways for assembling inorganic thin films and oriented mesoscopic silicate patterns through guided growth
A process directed to preparing surfactant-polycrystalline inorganic nanostructured materials having designed microscopic patterns. The process includes forming a polycrystalline inorganic substrate having a flat surface and placing in contact with the fl...
05/08/2001
6228247Electric field method and apparatus for decontaminating soil
Disclosed is an electrokinetic soil decontamination system that uses special electrode wall configurations, treatment wall configurations, and a combination electrode/treatment wall. A special emplacement method for all the flowable wall materials is used...
05/08/2001
6221224Fluid management system for electrokinetic remediation
A system for managing fluids used during electroremediation of contaminants in a porous medium, such as soil is disclosed. The system monitors the fluid gain and loss from the electrode wells and maintains optimal fluid levels in the wells on an individua...
04/24/2001
6214189Method for electro-kinetically decontaminating soil contained in a radioactive waste drum, and apparatus therefor
A method and an apparatus for electrokinetically decontaminating the soil contained in a radioactive waste drum are disclosed. The radioactively contaminated soil is put into drums, and the drums are carried to a temporary storage or to a disposal site. I...
04/10/2001
6214202Situ treatment of contaminated groundwater
A system for treating dissolved halogenated organic compounds in groundwater that relies upon electrolytically-generated hydrogen to chemically reduce the halogenated compounds in the presence of a suitable catalyst. A direct current is placed across at l...
04/10/2001
6203682Well designs for electrokinetic remediation
The invention provides an apparatus for electrokinetic transport through soil, comprising an electrode and a containment surrounding the electrode, the containment comprising a layer of a porous material and a rigid porous member disposed between the elec...
03/20/2001
6197187Treatment for contaminated media
A method for treating a contaminated media. The method comprises disposing electrodes at the contaminated media, injecting a salt-containing solution into contaminated media, applying an electric voltage between electrodes imposed peripherally to the regi...
03/06/2001
6193867Management of soil conditions and electroosmotic flow in electrokinetic remediation
Methods for controlling electroosmotic flow through a porous medium by applying an electric field between a plurality of electrodes positioned in a porous medium, supplying an acid solution to at least one of the electrodes and/or the soil, and supplying ...
02/27/2001
6190526In-situ remediation of contaminated soils
A process for the in situ remediation of soil comprising introducing at least one co-metabolite for treating contaminants in a contaminated soil region into the contaminated soil region wherein the source of the at least one co-metabolite is at least one ...
02/20/2001
6126802Method and device for regulating and optimizing transport of humidity by means of electroosmosis
In a method for regulating and optimizing transport of liquid in a porous structure by means of electroosmosis, a pulse pattern applied to one or more electrode pairs which are used during the electroosmosis is regulated by detecting a potential differenc...
10/03/2000
6117295Method for dehydrating a porous material
A method for dehydrating a porous material using electro-osmosis, includes applying a pattern of D.C. voltage pulses to an anode system embedded in the porous material, wherein the anode system is electrically interactive with a cathode structure embedded...
09/12/2000
6096185Method and apparatus for recovery of water and slurry abrasives used for chemical and mechanical planarization
Abrasive components and water are recovered from an aqueous chemical mechanical slurry used for planarization of semiconductor materials. The slurry effluent is preferably brought to a neutral pH, and cooled to a temperature between about 0° C. and about...
08/01/2000
6086739Electrokinetic remediation prefield test methods
Methods for determining the parameters critical in designing an electrokinetic soil remediation process including electrode well spacing, operating current/voltage, electroosmotic flow rate, electrode well wall design, and amount of buffering or neutraliz...
07/11/2000
6056868Rare earth doping of porous silicon
The present invention discloses the doping of rare earth elements into porous silicon, resulting in enhancement of luminescence. The doping is an electro-chemical process using constant voltage bias across the two electrodes in which the anode is porous s...
05/02/2000
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