From Aqueous Material Patents (Class 210/691)
  • Publication number: 20030222025
    Abstract: Methods, systems and devices for environmental remediation utilizing a foamed glass article. A foamed glass article is provided, which can come into contact with a viscous fluid, such as, for example oil or another petroleum based viscous product. The foamed glass article absorbs the viscous fluid in order to prevent further environmental contamination thereof by said viscous fluid. The foamed glass article can be formed in the shape of a block, a disk or a number of other shapes, such as spherical or pyramidal shapes.
    Type: Application
    Filed: June 4, 2002
    Publication date: December 4, 2003
    Inventor: John Paul Archuleta
  • Patent number: 6656363
    Abstract: The invention concerns a method for eliminating organophosphorus compounds contained in a gas or liquid whereby said gas or liquid is contacted with alumina and/or titanium oxide. According to one aspect of the present invention, a process is provided for disposing of a trivalent and/or pentavalent organophosphorus compound which comprises at least one carbon atom and is contained in a liquid. The process comprises contacting the liquid with titanium oxide and/or alumina, the alumina having a specific surface of at least 70 m2/g and a total pore volume of at least 0.3 cm3/g. The alumina and/or titanium dioxide can be doped with alkaline metals, alkaline-earth metals and/or rare earths. The organophosphorus compound can include phosphines, phosphinites, phosphites, phosphonites, phosphinates and phosphonates.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: December 2, 2003
    Assignee: Rhodia Chimie
    Inventors: Christophe Nedez, Dominique Laucher
  • Patent number: 6656587
    Abstract: Buoyant, sphere-like materials on the order of about 10 to about 300 microns and surrounded, at least in part, by (1) a variable blend of a ferromagnetic and paramagnetic material and (2) an absorbing or adsorbing material are effective vehicles for isolating targeted materials. By virtue of its relatively low density, the composite material is capable of remaining sufficiently suspended in solution for a suitable amount of time. In addition, the blend of ferromagnetic and paramagnetic materials allows for the isolation of a composite material from an environment such as a solution, yet discourages substantial self-attachment of the composite materials in solution, when subject to a magnetic field. Accordingly, multiple embodiments of composite materials having these and other properties are disclosed, as well as methods for making and using the same.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: December 2, 2003
    Assignee: Phillips Plastics Corporation
    Inventors: James R. Johnson, Majid Entezarian
  • Patent number: 6652750
    Abstract: A bilge water filter for filtering bilge water discharged being drained from the bilge of a vessel includes a casing having first and second ends and at least one sidewall extending between the first and second ends, an inlet extending through the first end of the casing, and an outlet extending through the second end of the casing. The bilge water filter also includes a filter media disposed in the casing, between the inlet and the outlet, the filter media being adapted to absorb contaminants present in the bilge water while allowing substantially contaminant-free bilge water to be discharged from the outlet of the bilge water filter. The bilge water filter is adapted to be externally mounted to the outer surface of the hull of a vessel (i.e., to the outer surface of the hull) for draining bilge water from the vessel, capturing contaminants inside the filter and discharging contaminant-free bilge water from the outlet of the filter.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: November 25, 2003
    Inventors: Samuel Pica, Gary Libertell
  • Patent number: 6648937
    Abstract: A ventilation assembly (10) for venting fluid impregnated fumes and separating the fluid for collection is disclosed. The ventilation assembly (10) broadly includes a curb (12), a curb cap (14), a fan (16), and a disposable grease collection cannister (18) removably coupled to the fan (16). The fan (16) generates an airstream and separates any grease entrained in the airstream from the airstream. The separated grease is collected in the cannister (18). The entire cannister (18) can be quickly and cleanly removed, disposed of, and replaced. The cannister (18) broadly includes an open top receptacle (52) for receiving the grease, an absorbent core (54) in the receptacle (52) for absorbing and storing the grease, a funnel (56) for directing the grease into the core (54), and a lid (58) for covering the open top and removably coupling the cannister (18) to the fan (16) for removal therefrom without contacting the receptacle (52).
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: November 18, 2003
    Assignee: Emerson Electric Co.
    Inventors: Tung Kim Nguyen, Richard Evers
  • Patent number: 6638710
    Abstract: An adsorbent for reducing the concentration of fibrinogen and/or fibrin in blood or blood plasma comprises a matrix and synthetic lateral chains that are covalently bonded to the matrix. The lateral synthetic chains are comprised of at least two amino groups in which the N2 atoms are at least 2.6 Å apart within at least one lateral synthetic chain. The matrix exhibits porous, unaggregated, spherical particles in a range of particle sizes from 50 to 250 &mgr;m, which possess an exclusionary threshold of at least 107 Daltons, and they exhibit no peptides or aromatic groups of any kind. The at least two amino groups are preferably separated from one another by 4 to 6 carbon atoms. An adsorber for the purpose of reducing the concentration of fibrinogen and/or fibrin in blood or blood plasma may be produced from the adsorbent.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: October 28, 2003
    Assignee: Fresenius HemoCare GmbH
    Inventors: Hans-Peter Leinenbach, Veit Otto, Martin Hepper
  • Patent number: 6630315
    Abstract: This invention provides a process for producing major histocompatibility antigen class II protein (hereinafter referred to as “MHC class II” for short) which occurs on the surfaces of antigen-presenting cells and the like, and MHC class II-bound materials in which MHC class II, &agr; and/or &bgr; subunit of MHC class II, or a part thereof is bound to a carrier such as beads, fibers and hollow fibers via covalent bond, as well as a module for removing superantigen using the same. This invention also provides a method for detecting or quantifying superantigens using MHC class II or a part thereof having an affinity to the superantigens, as well as an assay kit therefor.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: October 7, 2003
    Assignee: Toray Industries, Inc.
    Inventors: Keishi Miwa, Mayumi Fukuyama, Takehiko Uchiyama
  • Patent number: 6627084
    Abstract: The current invention describes organoclay compositions and methods of using them for removing impurities from contaminated liquids. The compositions are formed by contacting an attapulgite, sepiolite, or zeolite clay mineral with an alkylamine base. The method of use involves contacting the organoclay composition with a contaminated liquid, such as oil in water, allowing the organoclay to absorb the contaminants. The organoclay can be in the form of a granular solid for inline filter applications, or it can be a finely divided powder for other applications.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: September 30, 2003
    Assignee: Polymer Ventures, Inc.
    Inventors: Christopher B. Murphy, Jonathan M. Fabri, Robert P. Mahoney
  • Patent number: 6623645
    Abstract: Superabsorbent polymers (SAPs) are used for the containment and treatment of wastewaters. SAPs are mixed with a wastewater in amounts sufficient to absorb substantially all of the wastewater and prevent it from leaving a defined containment area. The water can then be evaporated from the SAP to produce a substantially dry polymer composition containing the SAP and the wastewater contaminants. The dry polymer composition is discarded or, when appropriate, used as a fertilizer for plants. Surprisingly, the SAP reduces the odor associated with ammonia containing wastewaters by binding to the ammonia and reducing the ammonia gas present in the airspace around the wastewater. The evaporation process may be conducted in the presence of a heat exchanger to produce cool, fresh air that is used to cool facilities, particularly animal rearing and production facilities.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: September 23, 2003
    Assignee: Dewater Solutions, Inc.
    Inventors: Gary W. Roach, Elbert Glen Price
  • Publication number: 20030168410
    Abstract: System for enhanced removal of hydrocarbons from a fluid stream, especially one comprised predominantly of water, from a producing oil and gas well, from flowbacks from remediation treatments such as acid jobs, or from wastewater produced as a product of transmission pipeline operations. The fluid stream is flowed and/or pumped through a sequence of processing equipment, including a gas flotation unit in combination with a cellulose based filter media unit downstream of the flotation unit.
    Type: Application
    Filed: March 5, 2002
    Publication date: September 11, 2003
    Inventors: Michael R. Robicheaux, Jeffrey A. Grist, Thomas L. Wilkerson
  • Patent number: 6616827
    Abstract: The present invention provides a filtration method of copper electrolyte that can remove minute electrolytic by-products and dirt and may improve filtration efficiency by improving a conventional filtration method, the so-called precoating method. In a filtration method of copper electrolyte for removing electrolytic by-products and dirt which affect copper electrolysis, by passing copper electrolyte through a filter element precoated with a filtering aid, in the present invention, a precoated layer of a filtering aid is formed on a filter element in advance. Activated carbon preliminary treatment solution containing powdery activated carbon is passed through the filter element formed with the precoated layer, and is also circulated until no powdery activated carbon leaks from an outlet of the filter element, thus forming a powdery activated carbon layer on the precoated layer. Subsequently, the copper electrolyte is passed through for filtration.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: September 9, 2003
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kazuyoshi Nabekura, Yutaka Hirasawa, Naotomi Takahashi
  • Patent number: 6602421
    Abstract: A method for purifying contaminated water involves passing contaminated water through a porous bed of steel slag. The steel slag can be used to remove various contaminants or reduce the concentration of such contaminants, such as heavy metals (for example, hexavalent chromium), chlorinated organic compounds, and certain inorganic anions. The method preferably involves placing an underground barrier of a porous bed of steel slag in a flow path of contaminated groundwater then allowing contaminated groundwater to pass through the barrier to purify the contaminated groundwater. The slag particles may be used as produced with no further grinding necessary, although the slag may be passed through a sieve or sieves to obtain a set of slag particles having a median diameter of about ⅛ inch to 1 inch, and preferably between about ¼ inch to ⅜ inch. Due to the inherent permeability of slag, no additive need be mixed with the slag.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: August 5, 2003
    Inventor: James S. Smith
  • Publication number: 20030135038
    Abstract: Magnetic particles with an outer glass surface being essentially poreless or having pores of a diameter of less then 10 nm as well as ferromagnetic particles with a glass surface are preferentially useful for the isolation of biological material from samples. They provide a quick and reliable purification.
    Type: Application
    Filed: July 23, 2002
    Publication date: July 17, 2003
    Applicant: Roche Diagnostics GmbH.
    Inventors: Jorg Kleiber, Thomas Walter, Herbert Harttig, Christoph Lensniak, Martin Mennig, Michael Riedling, Helmut Schmidt
  • Patent number: 6586201
    Abstract: A method of chromatographic isolation for non-glyceride components (squalenes, carotenes, vitamin E, sterols and/or the like) from a non-glyceride components-comprising compound by the steps of a. introducing the non-glyceride components-comprising compound onto a selective adsorbent to allow an adsorption of the non-glyceride components, and subsequently b. desorbing the non-glyceride components from the adsorbent, wherein the adsorption and/or desorption of the non-glyceride components is carried out under a supercritical fluid environment.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: July 1, 2003
    Inventors: Choo Yuen May, Ma Ah Ngan, Yusof Basiron
  • Patent number: 6579460
    Abstract: A process and a composite for removing toxic cations and anions from blood or dialysate is disclosed. The process involves contacting blood or dialysate with a shaped ion exchange composite to remove ammonium and phosphate ions. The composite is a mixture of an anion exchange composition such as zirconia and a microporous cation exchange composition formed into a shaped article and optionally containing a binder such as hydrous zirconium oxide. The microporous cation exchangers are represented by the following empirical formula.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: June 17, 2003
    Assignee: UOP LLC
    Inventors: Richard R. Willis, David S. Bem, Daniel L. Ellig
  • Publication number: 20030085174
    Abstract: The invention relates to a sustainable process for treating contaminated fluids that utilizes a cellulose-based medium to adsorb contaminants in contaminated fluids and vapors. First, the cellulose-based material is tightly packed into a column. Contaminated fluid is then passed through the column to provide intimate contact between the contaminated fluid and the cellulose-based material. As the contaminated fluid flows through the column, the cellulose-based material adsorbs the contaminants (both organic and inorganic contaminants) due to the adsorptive properties of the cellulose-based material. The column is operated until the attenuation capacity of the cellulose-based material within the column is reached (i.e., when contaminants are found in the effluent). The cellulose-based material is then removed and composted and a new cellulose-based material is packed into the column. Composting is used to reduce the volume of the spent cellulose-based material and degrade and concentrate the contaminants.
    Type: Application
    Filed: April 19, 2001
    Publication date: May 8, 2003
    Inventors: Mark E. Zappi, J. Alex Thomasson, Eugene P. Columbus, Timothy N. Burcham, Abdolhamid Borazjani
  • Patent number: 6540921
    Abstract: Process for the on-site purification of an aqueous hydrogen peroxide solution, in which the solution is made to pass through a resin bed capable, at least partially, of adsorbing or absorbing the impurities present in the solution. The hydrogen peroxide solution is injected into the resin bed and passes through the latter at an approximately linear velocity preferably of between 10 m/h and 50 m/h and more preferably between 10 m/h and 20 m/h, while the resin bed is kept substantially compacted for at least 50% of the time during which the solution is being purified by coming into contact with the said resin.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: April 1, 2003
    Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Christine Devos, Didier Demay, Hervé Dulphy
  • Patent number: 6533941
    Abstract: A flow through drain filter for removing trash, sediment, liquid hydrocarbons, and metal ions comprised of at least four concentric screens having a deionizing filter material disposed between an exit screen and a second middle inner screen and hydrophobic and liquid hydrocarbon absorbent material disposed between first and second middle screens and a sediment capture space between the first middle screen and a trash exclusion intake screen.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: March 18, 2003
    Inventor: George R. Butler
  • Publication number: 20030047514
    Abstract: Hydrophobic polymer particles (e.g., granules or fragments) employed as filter media, e.g., for filtering runoff water, include an antimicrobial compound on exterior surfaces and can reduce proliferation of microbial organisms as well as sorb chemical contaminants from the water. By employing this dual decontamination action, filter systems employing such particles can improve the quality of runoff water (or other contaminated water streams) and reduce the risk presented by potentially harmful organisms.
    Type: Application
    Filed: September 13, 2001
    Publication date: March 13, 2003
    Inventor: Rodolfo B. Manzone
  • Patent number: 6528622
    Abstract: A preparative method of isolating a preselected whey protein or group of whey proteins from a solution is provided. The method comprises the following steps: (a) contacting a whey protein solution with the preselected ion exchanger for a time and at a temperature sufficient to enable the preselected whey protein to be adsorbed; wherein the whey protein solution has (1) a protein content in the range of about 5% to about 20% by weight, (2) a pH of a preselected level, which is the level at which the preselected whey protein or group of whey proteins selectively binds to the preselected ion exchanger, and (3) a reduced ionic strength; and (b) recovering either or both of the following: (1) the whey protein component adsorbed in step (a), and (2) the breakthrough whey protein component not adsorbed in step (a).
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: March 4, 2003
    Assignees: Massey University, New Zealand Dairy Board
    Inventors: John Stephen Ayers, David Francis Elgar, Mark Pritchard
  • Publication number: 20030036175
    Abstract: A process for the depletion or removal of endotoxins from preparations containing active ingredients designated for therapeutical use which are obtained from natural sources by genetic engineering and/or biotechnology by treatment with chromatographic material wherein
    Type: Application
    Filed: September 26, 2002
    Publication date: February 20, 2003
    Applicant: Qiagen GmbH, of Max-Volmer-Strasse
    Inventors: Metin Colpan, Peter Moritz, Joachim Schorr
  • Publication number: 20030024884
    Abstract: The invention relates to the field of ecology, in particular to the struggle against pollution of the environment with oil, petroleum products, cyclic and aromatic hydrocarbons, other chemical pollutants, i.e. to purification of a water area, waste waters, industrial machinery, polluted soil and grounds etc., and also to the field of objects used to satisfy the vital requirements of humans and to medicine.
    Type: Application
    Filed: May 3, 2001
    Publication date: February 6, 2003
    Inventor: Viktor Ivanovich Petrik
  • Publication number: 20030015473
    Abstract: The current invention describes organoclay compositions and methods of using them for removing impurities from contaminated liquids. The compositions are formed by contacting an attapulgite, sepiolite, or zeolite clay mineral with an alkylamine base. The method of use involves contacting the organoclay composition with a contaminated liquid, such as oil in water, allowing the organoclay to absorb the contaminants. The organoclay can be in the form of a granular solid for inline filter applications, or it can be a finely divided powder for other applications.
    Type: Application
    Filed: April 24, 2001
    Publication date: January 23, 2003
    Inventors: Christopher B. Murphy, Jonathan M. Fabri, Robert P. Mahoney
  • Patent number: 6506307
    Abstract: A process is described for sorbing hydrophobic liquids using a plurality of dried, washed fibers originating from a tropical plant material having naturally hydrophobic fibers. The dried, washed fibers have been washed sufficiently to extract a substantial portion of natural liquids therefrom, thereby improving their hydrophobic absorptive properties. The dried, washed fibers are applied in communication with a body containing the hydrophobic liquid whereupon they sorb the hydrophobic liquid from the body.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 14, 2003
    Assignee: Fybx Enviromental, Inc.
    Inventors: Dimitrios George Hondroulis, Katherine Tracy Bergquist-Kingham, Neville William Kingham
  • Patent number: 6506308
    Abstract: Provided are methods for substantially removing organic substances from an aqueous solution, wherein the aqueous solution is contacted with a synthetic hydrated calcium silicate. Components that can be removed from aqueous solution include bacterial, plant, algal and fungal components. Exemplary components include endotoxins. The aqueous solution comprises, for example, water, a chemically buffered solution, a pharmaceutical solution, a solution comprising a nutritional supplement, a culture medium, or a growth medium. Other examples include pharmaceutical compendial water and non-compendial water. In one embodiment of the method, the pH of the aqueous solution is maintained at a selected pH to promote the separation, for example, about pH 5.5 to 9.5, or, e.g., about pH 5.5 to 7.5.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: January 14, 2003
    Assignee: Advanced Minerals Corporation
    Inventor: John Mark Rolf
  • Patent number: 6503760
    Abstract: Methods for capturing analytes associated with surface-bound ligands are disclosed. The methods involve eluting analytes from surface-bound ligands with a first liquid to generate free analytes, and capturing the free analytes with a solid capturing material within the first liquid to generate a first liquid containing captured analytes. The first liquid may be a flowing liquid or a non-flowing liquid, and the surface to which the surface-bound ligand is attached may be a sensing surface, such as a biosensor, or a non-sensing surface. The captured analytes may be further consolidated at a location removed from the surface-bound ligand, eluted from the solid capturing material with a second liquid, and used for subsequent analysis or procedures.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: January 7, 2003
    Assignee: Biacore AB
    Inventors: Magnus Malmqvist, Östen Jansson
  • Publication number: 20020195393
    Abstract: A sorbent and filter media material produced from a mass of delustered hydrophobic and lipophilic fibers. In one embodiment the fibers are mixed together to form a cohesive wad of fibers. The wad has a substantial volume of internal interstices available to absorb a liquid hydrocarbon or an organic liquid, and the surfaces of the fibers also adsorb that liquid. The combination of adsorption and absorption enables the sorbent to sorb up to twenty times it own weight of hydrocarbon or organic liquid. Preferably a majority of the fibers are of a relatively shorter length, while a minority of the fibers are of a relatively longer length. The longer fibers help bind the wad together into a cohesive mass that has a substantial volume of internal interstices. After a short time during which the hydrocarbon is sorbed, the wadded mass can be collected, pressed to recover the hydrocarbon, and recycled.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 26, 2002
    Inventors: Jerry M. Brownstein, Kathy R. Brownstein, Brent A. Hepner
  • Publication number: 20020190003
    Abstract: A process for removing phenols from an aqueous solution is provided, which comprises the steps of contacting a mixture comprising the solution and a metal oxide, forming a phenol metal oxide complex, and removing the complex from the mixture.
    Type: Application
    Filed: May 24, 2002
    Publication date: December 19, 2002
    Inventor: Bonnie R. Hames
  • Publication number: 20020160088
    Abstract: A crystal substance formed by precipitating as fibrous aggregates by making a metal aliphatic carboxylate dissolve completely in pure water, stirring, and gradually cooling the resulting solution. A method of preparing the fibrous crystal aggregates. A material for recovering flowing oil and method of recovering flowing oil by using the fibrous crystal aggregates. A material for solidifying liquid hydrocarbon, waste tempura oil and edible oil and method of solidifying liquid hydrocarbon, waste tempura oil and edible oil by using the fibrous crystal aggregates. A method of preparing the solidifying material.
    Type: Application
    Filed: March 11, 2002
    Publication date: October 31, 2002
    Inventors: Hiroshi Sakaguchi, Yoshishige Kida, Seizi Iseki
  • Publication number: 20020153324
    Abstract: A water pollution remediation system includes a plurality of decontamination modules that are self supporting and interconnectable for sequentially removing a plurality of different contaminants. The modules are designed to be independently transportable to a ship for decontaminating bilge water, in particular, after a fire when a foaming fire suppressant composition has been introduced into the bilge water. The modules may be placed on the deck of the ship, connected together and powered by the ship's hydraulic, electric and bilge pumping systems to provide comprehensive decontamination.
    Type: Application
    Filed: April 18, 2001
    Publication date: October 24, 2002
    Inventor: Gerard Lynch
  • Patent number: 6444611
    Abstract: A sorbent composition and process designed for removing oil or oily substances from the surface or upper layer of a body of a water. The sorbent composition consists of raw peanuts hulls crushed to a plurality of particles of predetermined dimensions. The composition further comprises crushed raw peanut kernels provided to create a hydrophobic/oleophilic protective film around those particles. Protective film is formed by treatment of the mixture in a rotary kiln at a predetermined temperature and a restricted air flow. An apparatus for removing oil or oily substances from a surface or upper layer of a body of a water comprises a flexible ballast feeding pipe containing the sorbent composition. The pipe is immersed on predetermined depth below an oil spill water surface area and contains a number of injection nozzles distributed along the pipe.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: September 3, 2002
    Inventor: Horatio Solis
  • Patent number: 6409924
    Abstract: System in fluid communication with an oil-contaminated water supply, such as a water leg portion of an offshore drilling or production platform sump tank, for conveying the separated water into contact with an organophilic clay in a vessel maintained at an operating pressure of at least 10 psig, such that the hydrocarbons and other organic material will be adsorbed onto the organophilic clay and will be conveyed back to the ocean water without contamination.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: June 25, 2002
    Assignee: AMCOL International Corporation
    Inventors: Michael R. Johnson, Jeffrey J. Smith
  • Patent number: 6407212
    Abstract: For separating non-conventional transmissible agents (NCTAs), i.e. causative agent(s), of transmissible spongiform encephalopathies (TSEs) from a solution of a protein susceptible to contamination with NCTAs, particularly from blood products, at least one adsorbent is suspended, for a time of at least 10 minutes. The absorbent is selected from kieselguhr, diatomaceous earth, silicic acid, clay minerals, metal hydroxide, metal oxihydrate, cellulose, perlite, bentonite, and water-insoluble synthetic polymers. The obtained suspension is agitated, and subsequently the adsorbent is separated from the protein solution.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: June 18, 2002
    Assignee: ZLB Bioplasma AG
    Inventors: Jean-Jacques Morgenthaler, Jacques-Andre Maring, Markus Rentsch
  • Patent number: 6398966
    Abstract: Apparatus in fluid communication with a water leg portion of a hydrocarbon-contaminated water, e.g., a water leg portion of an offshore drilling or production platform sump tank for conveying water, separated from oil, into contact with organophilic media canisters such that the hydrocarbons and other organic materials commingled with the sump tank water will be adsorbed onto the organophilic media and detected by the embedded probe in selected canisters. The canisters are provided in a plurality of stacks and are in fluid communication with a header disposed at the bottom of the vessel housing the various stacks of canisters. Solids that do not pass through the canisters are accumulated at the bottom of the vessel and easily drained through a drain port. The water will pass through the media and will be conveyed back to the ocean water without contamination.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: June 4, 2002
    Assignee: AMCOL International Corporation
    Inventors: Jeffrey J. Smith, Jerald W. Darlington, Jr., Michael R. Johnson, John Occhipinti, Elmo Robichaux, Michael A. Berger
  • Patent number: 6398964
    Abstract: A process for treating aqueous waste comprising a copper plating waste stream, a copper rinse stream containing organic carbon and solid particles, and a copper chemical mechanical planarization stream (CMP) containing solid particles is provided. This process includes electrowinning the copper plating waste stream to remove copper and create a blow down stream, filtering the rinse stream to remove solid particles, adding the blow down stream to the CMP stream, treating the blow down stream and the CMP stream with a flocculant or coagulant to form larger solid particles, removing the larger solid particles from the CMP stream and separating the resulting stream into a liquid containing copper, a concentrated regenerant, and a dilute regenerant, adding the concentrated regenerant to the waste stream before the electrowinning step, adding the dilute regenerant to the rinse stream before filtering to remove solid particles, and adding the liquid containing copper to the CMP stream during the treating step.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: June 4, 2002
    Assignee: Koch Microelectronic Service Company, Inc.
    Inventors: Daun Marie Brady, Michael Andrew Frisch, Deon Eugene Campbell, Thuy Nguyen, Dustin Kimbel James
  • Patent number: 6383394
    Abstract: The invention relates to a method for rendering waste sorbent material recyclable. The method includes collecting polymer-based sorbent materials containing one or more solvents, treating the waste material in a centrifugal treatment system for removing the solvents from the polymer-based sorbent materials whereby the sorbent materials have a residual solvent content that renders the materials non-hazardous for transportation to a remote recycling site. The treatment system includes a fume collection system and a centrifuge disposed in the fume collection system. The sorbent materials are charged into the centrifuge and the centrifuge is operated for extractive removal of solvents therefrom and collection of the extracted solvents. The sorbent materials are rendered non-hazardous by the centrifugal treatment system enabling the materials to be taken off site for use in making recycled parts.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: May 7, 2002
    Inventors: David L. Briggs, John K. Clement, Jr.
  • Patent number: 6365147
    Abstract: The present invention relates to methods for depleting endotoxin from biological solutions by exposure of solutions containing endotoxin to an immobilized metal affinity chromatography matrix composed of a metal ion such as iron (III) bounds to a resin, wherein the metal is capable of selectively binding endotoxin in the solution. These methods are useful for purifying, for example, biological products prepared using bacterial cells, or products in which bacterial contamination is problematic. In another embodiment, endotoxin in circulation in a body can be removed by exposing the blood to the aforementioned matrix, whereby endotoxin is removed before the blood is returned to the body.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: April 2, 2002
    Assignee: New Jersey Institute of Technology
    Inventors: Robert Gang Luo, Yun Kang
  • Publication number: 20020036168
    Abstract: A method for improving the efficiency and usable life in a cross flow membrane filter used to remove contaminants from bilgewater. The bilgewater is passed upstream of the cross filter membrane through a fluid-pervious filtration media which has been infused with an absorbtion composition comprising a homogeneous thermal reaction product of an oil component selected from the group consisting of glycerides, fatty acids, alkenes, and alkynes, and a methacrylate or acrylate polymer component. The contaminants are thereby immobilized at the media. The purified output from the infused filtration media is then provided as input for the cross flow membrane filter.
    Type: Application
    Filed: May 31, 2001
    Publication date: March 28, 2002
    Inventor: Hal Alper
  • Patent number: 6358422
    Abstract: Apparatus in fluid communication with a water leg portion of a hydrocarbon-contaminated water, e.g., a water leg portion of an offshore drilling or production platform sump tank for conveying water, separated from oil, into contact with organophilic media canisters such that the hydrocarbons and other organic materials commingled with the sump tank water will be adsorbed onto the organophilic media and detected by the embedded probe in selected canisters. The canisters are provided in a plurality of stacks and are in fluid communication with a header disposed at the bottom of the vessel housing the various stacks of canisters. Solids that do not pass through the canisters are accumulated at the bottom of the vessel and easily drained through a drain port. The water will pass through the media and will be conveyed back to the ocean water without contamination.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: March 19, 2002
    Assignee: AMCOL International Corporation
    Inventors: Jeffrey J. Smith, Jerald W. Darlington, Jr., Michael R. Johnson, John Occhipinti, Elmo Robichaux, Michael A. Berger
  • Publication number: 20020027106
    Abstract: Apparatus in fluid communication with a water leg portion of a hydrocarbon-contaminated water, e.g., a water leg portion of an offshore drilling or production platform sump tank for conveying water, separated from oil, into contact with organophilic media canisters such that the hydrocarbons and other organic materials commingled with the sump tank water will be adsorbed onto the organophilic media and detected by the embedded probe in selected canisters. The canisters are provided in a plurality of stacks and are in fluid communication with a header disposed at the bottom of the vessel housing the various stacks of canisters. Solids that do not pass through the canisters are accumulated at the bottom of the vessel and easily drained through a drain port. The water will pass through the media and will be conveyed back to the ocean water without contamination.
    Type: Application
    Filed: August 9, 2001
    Publication date: March 7, 2002
    Applicant: AMCOL International Corporation
    Inventors: Jeffrey J. Smith, Jerald W. Darlington, Michael R. Johnson, John Occhipinti, Elmo Robichaux, Michael A. Berger
  • Publication number: 20020012622
    Abstract: A method for removing residual VOC components from a fluid stream used in the sweetening of sour gas at gas processing plants. In a retrofit configuration, the method includes interposing a supplemental VOC removal station after a primary VOC removal station in an absorbent fluid stream. The absorbent fluid stream incorporates fluid into which sour gas components and VOC have been absorbed from a treated gas stream such as produced natural gas. The primary VOC removal station is configured to remove an initial portion of the absorbed VOC from the absorbent fluid stream. The supplemental VOC removal station is configured to liberate a portion of residual absorbed VOC remaining in the absorbent fluid stream downstream from the primary VOC removal station. Further, the supplemental VOC removal station is configured to avoid liberating absorbed sour gas components from the absorbent fluid stream.
    Type: Application
    Filed: April 21, 1999
    Publication date: January 31, 2002
    Inventor: MATTHEW T. FRONDORF
  • Patent number: 6326070
    Abstract: Sawdust particles are freed from their terpene content and thereafter coated with a Teflon wax. The Teflon coated sawdust is hydrophobic and consequently does not absorb water, while the ability to absorb oil is improved. The Teflon coated sawdust is useful in control of oil spills.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: December 4, 2001
    Assignee: Virkensdamm AB
    Inventor: Bo Södergren
  • Patent number: 6315907
    Abstract: An adsorbent for toxic shock syndrome toxin-1 (TSST-1) comprising a compound which has a log P value of at least 2.50 wherein P is a partition coefficient in an octanol-water system and which is immobilized on a water-insoluble carrier; a method for removing TSST-1 body fluids by adsorption which comprises bringing a body fluid containing TSST-1 into contact with the adsorbent; an adsorber for TSST-1 comprising an adsorbent packed in a container having an inlet and an outlet for a body fluid and a means for preventing the adsorbent from flowing out of the container; and use of the adsorbent. TSST-1 in body fluids can be efficiently removed by the adsorbent.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: November 13, 2001
    Assignee: Kaneka Corporation
    Inventors: Fumiyasu Hirai, Eiji Ogino, Hiroyuki Maruyama, Takayuki Sakogawa, Takashi Asahi, Nobutaka Tani
  • Publication number: 20010006160
    Abstract: The invention describes hydrophilically acting shaped objects, in particular semipermeable membranes for pyrogen retention, comprising a synthetic polymer component and an additive made from a copolymer made from vinylpyrrolidone and a vinylimidazole compound, and furthermore processes for manufacturing the shaped objects. The shaped objects of the invention exhibit such a high pyrogen retention capacity that the pyrogen concentrations present in the filtrates are in part below the detection limit of the gel clot LAL test.
    Type: Application
    Filed: December 22, 2000
    Publication date: July 5, 2001
    Applicant: Membrana GmbH
    Inventors: Thorsten Niklas, Friedbert Wechs, Annekatrin Nothdurft
  • Patent number: 6235201
    Abstract: Apparatus in fluid communication with a water leg portion of a hydrocarbon-contaminated water, e.g., a water leg portion of an offshore drilling or production platform sump tank for conveying water, separated from oil, into contact with organophilic clay cannisters such that the hydrocarbons and other organic materials commingled with the sump tank water will be adsorbed onto the organophilic clay and detected by the embedded probe in selected cannisters. The water will pass through the clay and will be conveyed back to the ocean water without contamination. At some point in time, the organophilic clay will become “spent” and at a certain “spent level”, the saturated condition of the organoclay will be electronically detected by the embedded probe and alarm/control panel. The alarm indicates that the “spent” organophilic clay should be replaced with fresh clay or the spent clay regenerated.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: May 22, 2001
    Assignee: AMCOL International Corporation
    Inventors: Jeffrey J. Smith, Michael A. Berger, Jerald W. Darlington, Jr., Michael R. Johnson
  • Patent number: 6203705
    Abstract: A process for treating waste water containing copper and other particles from a chemical mechanical planarization (CMP) process is provided. This process includes adjusting the pH of the waste water to between about 3 and 4, adding a coagulant or flocculating polymer to the waste water to generate larger particles, filtering the waste water through a filtration unit to produce a permeate and solids, feeding the permeate through a carbon bed to remove total organic carbon, and feeding the carbon bed treated permeate through an ion exchange column to remove copper from the permeate. This process may further involve washing sludge collected in a concentration tank with the treated stream exiting the ion exchange column. Still further, another aspect of the present invention is a system for performing the process described above.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: March 20, 2001
    Assignee: Koch Microelectronic Service Company, Inc.
    Inventors: Dustin Kimbel James, Deon Eugene Campbell, Thuy Nguyen
  • Patent number: 6200783
    Abstract: A process for producing or separating trehalose and/or sugar alcohols from hydrogenated saccharide mixtures containing trehalose and sugar alcohols selected from the group consisting of sorbitol, maltitol, and maltotriitol, which comprises the steps of subjecting hydrogenated saccharide mixtures containing trehalose and the sugar alcohols to column chromatography using strong-acid cation exchange resins, and successively eluting and collecting a trehalose-rich fraction and a sugar alcohol-rich fraction in this order.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: March 13, 2001
    Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
    Inventors: Hiroto Chaen, Takashi Shibuya, Shigeharu Fukuda
  • Patent number: 6197199
    Abstract: The present invention relates to a method of using a protein-polysaccharide complex composition as an adsorbent and filtering aid for in the processing of fluids or solids to absorb or decompose a variety of separable components including halogenated organic compounds such as PCBs and dioxins.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: March 6, 2001
    Inventor: Blaise McArdle
  • Patent number: 6190922
    Abstract: This invention relates generally to a method for the extraction of organic liquid contaminates from a sample. This invention is directed to the ability of hydrophobic extraction material or ribbon tape made of a hydrophobic polymer to facilitate the extraction of liquid organic contaminates from an aqueous sample in contact with an organic non-polar solvent.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: February 20, 2001
    Assignee: Strategic Diagnostics Inc.
    Inventors: Dong Chen, M. David Shattuck
  • Patent number: 6168652
    Abstract: A process for purifying halosilanes consisting of contacting a mixture comprising a halosilane and a hydrocarbon with silica gel, thereby reducing the hydrocarbon content of the mixture. The present process is particularly useful for removing hydrocarbon contaminates from chlorosilanes, where the hydrocarbon contaminates have a boiling point similar to that of the chlorosilanes.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: January 2, 2001
    Assignee: Dow Corning Corporation
    Inventors: Michael Andrew McIntyre, Oliver K. Wilding