Solidification, Vitrification, Or Cementation Patents (Class 588/252)
  • Patent number: 9412477
    Abstract: Methods for filling a container with hazardous waste are disclosed. One method includes moving the container to a position where a filling head adds solid hazardous waste to the container, coupling a lid to the container to close the container while the container is at the position, and moving the closed container away from the position. Another method includes aerating dry cementitious material in the container with a mixer, adding hazardous waste to the container, mixing the cementitious material and the hazardous waste with the mixer, and controlling the speed of the mixer.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 9, 2016
    Assignee: ENERGYSOLUTIONS, LLC
    Inventors: Gordon Crawford, David Skeath, Gary Buss
  • Patent number: 9410386
    Abstract: A process is disclosed which converts intractable, semi-solid drill cuttings into a free-flowing granular, soil-like SDC material, which, after appropriate compaction, can be beneficially used for a variety of engineering construction applications, thereby removing the need for disposal with its associated costs and environmental impact, and as a result improving the overall economics for gas well development, together with improving corporate sustainability and reducing liability.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: August 9, 2016
    Assignee: MARYLAND ENVIRONMENTAL RESTORATION GROUP, INC.
    Inventors: Raymond T. Hemmings, Bruce J. Cornelius
  • Patent number: 9162925
    Abstract: A process for treating a tailings stream comprises (a) contacting (1) a gelling agent and (2) an activator with said tailings stream to produce a gel; (b) entrapping solids including sand and clay, and other solid particles with the gel; and (c) allowing the gel to strengthen and solidify to produce a trafficable deposit; wherein the tailings stream comprises water and solids, which solids comprise sand, clay and other solids particles, and wherein 5% by volume to 100% by volume of the solids have a particle size less than 0.05 mm, based on the total volume of the solids. The process may further comprises spreading the gel produced in step (a) or the trafficable deposit produced in step (c) over a surface. The present invention is particularly useful to treat tailings streams produced in processes to extract bitumen from oil sands ores.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: October 20, 2015
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventor: Robert Harvey Moffett
  • Patent number: 9072926
    Abstract: The invention provides a process for stabilizing waste by landfilling, including mixing the waste with ash after burning oil shale, whereby safely stabilizing inorganic or organic waste by embedding it in a hardened matter exhibiting a high compression strength.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: July 7, 2015
    Assignee: Environmental Services Company Ltd.
    Inventors: Gilad Golub, Julio Subovich
  • Patent number: 9005098
    Abstract: Containers and methods for disposing unused pharmaceutical product are disclosed. Each container (100, 200, 300) may include a container body (104, 204, 304) with an internal chamber (116, 216, 316) for storing pharmaceutical product, along with a cover (124, 224, 324) for selectively limiting access to the chamber (116, 216, 316). An encapsulation component (128, 228, 328) may be selectively disposable within the chamber (116, 216, 316), and may be operable to encapsulate the pharmaceutical product within the container (100, 200, 300). For instance, the encapsulation component (128, 228, 328) may melt and/or flow into contact with the pharmaceutical product and thereafter solidify to encapsulate the pharmaceutical product. The encapsulation component (128, 228, 328) may melt and thereafter solidify between the cover (124, 224, 324) and shell (104, 204, 304) to limit removal of the cover (124, 224, 324) from the shell (104, 204, 304).
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: April 14, 2015
    Assignee: Mallinckrodt LLC
    Inventor: Robert J. Ziemba
  • Patent number: 8951182
    Abstract: A method for vitrification of waste to reduce the formation of persistent secondary phases comprising separating at least one glass frit constituent from an initial glass frit to form a modified glass frit. The waste, modified glass frit, and the at least one glass frit constituent are mixed together with the modified glass frit and the at least one glass frit constituent being added as separate components. The resulting mixture is vitrified.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: February 10, 2015
    Assignee: EnergySolutions, LLC
    Inventors: Akito Yamazaki, Yoshihiro Endo, Katsuyuki Shirato, Kunihiko Nakano, Ian L. Pegg, Hao Gan, Keith Matlack, Innocent Joseph, Bradley W. Bowan, II
  • Patent number: 8911341
    Abstract: Containment systems and methods safely and permanently encapsulate a sharp portion of a sharp medical instrument (e.g. a hypodermic needle). The containment system includes a cap or other container having a rim defining an open end configured to receive the sharp portion therein and an ingress port configured to permit injection of a liquid hardenable solution into the container to encapsulate the sharp portion. The method of use includes inserting the sharp metal instrument into the container, and injecting a liquid hardenable solution into the container through the ingress port to encapsulate the sharp portion of the medical instrument. The hardenable solution then hardens, encapsulating the sharp portion of the medical instrument. The liquid hardenable solution is injected by a base or base unit configured to receive the container and to inject the solution through the ingress port.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: December 16, 2014
    Inventors: Robert W. Brunson, Jeremy Sorensen
  • Publication number: 20140364675
    Abstract: Methods and products for hardening/solidifying waste paint for disposal, which are ideal for use with water-based paints, acrylic paints, latex paints and oil-based paints using a single product which is both safe to use and safe for landfill disposal. In one illustrative embodiment, the product may comprise coconut coir, manufactured in a loose granulated grade, a compressed pellet grade, or a suitable mixture thereof which allows a user to choose the correct grades desired for as specific application to solidify waste paint materials safe for landfill disposal. Methods of use may include selecting the appropriate grade for a particular usage, solidifying waste paint and disposing of the waste paint absorbed into the selected coconut coir product.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 11, 2014
    Inventors: Robert Toby Wilson, Tommy S. Cheng
  • Patent number: 8905909
    Abstract: A system for filling a container with hazardous waste includes a primary confinement chamber that houses a lid handling mechanism and a filling head. The lid handling mechanism may be used to remove and/or recouple the lid to the container as part of the process of filling the container in such a way to ensure the exterior of the container is not contaminated by the hazardous waste. The filling head may be configured to add the hazardous waste to the container, mix the contents of the container, and/or vent air from the container.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: December 9, 2014
    Assignee: EnergySolutions, LLC
    Inventors: Gordon Crawford, David Skeath, Gary Buss
  • Publication number: 20140343343
    Abstract: An assembly and method for processing human waste includes providing a supporting base having an opening within which a waste reservoir is affixed. The assembly may be installed on or below a rim of a toilet bowl. Solidification and pathogen killing materials are provided. The materials are deposited in the reservoir either prior to or upon accumulation of waste in the reservoir. The reservoir with the solidified waste is then sealed and transported to a collection facility.
    Type: Application
    Filed: August 5, 2014
    Publication date: November 20, 2014
    Inventors: James T. Mullowney, JR., Theresa L. O'Keefe
  • Patent number: 8821363
    Abstract: The invention includes a system for solidification of liquid medical waste for use in connection with a vessel configured to receive an aqueous liquid to be solidified. The system includes an absorbent composition including a plurality of surface cross-linked superabsorbent particles and a plurality of second particles. Additionally, a soluble packet may be included so that the absorbent composition is released upon dissolution of the packet. The invention also includes a liquid solidification system for reducing gel block and a method of solidifying liquid medical waste.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: September 2, 2014
    Inventor: Quint Barefoot
  • Patent number: 8758212
    Abstract: A sulfur-sand limestone mortar and methods of preparing the sulfur-sand limestone mortar and disposing of elemental sulfur, are disclosed. In embodiments, the sulfur-sand limestone mortar includes elemental sulfur, limestone powder, and sand. Modifiers, such as plasticizers, are not required and are not used in embodiments of the sulfur-sand limestone mortar. In embodiments of the method to prepare the sulfur-sand limestone mortar, each of the elemental sulfur, limestone powder, and sand are heated to at least 140 C, then combined, and then allowed to solidify.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: June 24, 2014
    Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
    Inventors: Mohammed Al-Mehthel, Mohammed Maslehuddin, Saleh Al-Idi, Mohammed Rizwan Ali, Mohammed Salihu Barry
  • Patent number: 8741058
    Abstract: By-product materials are processed to mitigate undesirable effects. In some embodiments, industrial waste by-products are recycled using calcium polysulfide and used in building materials. In certain implementations, toxins are rendered non-viable as human pathogens by reaction with calcium polysulfide to create non-soluble sulfide crystals locked in the material as hydration is completed. The sulfides are not soluble in water and are locked into position within the resulting hydrate material, which mitigates escape of or changes of state in the toxins.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: June 3, 2014
    Inventors: James Theodore Easton, James A. Papp
  • Publication number: 20140073830
    Abstract: The present invention provides compositions and methods for converting hazardous waste glass into safe and usable material. In particular, the present invention provides compositions and methods for producing ceramic products from toxic-metal-containing waste glass, thereby safely encapsulating the metals and other hazardous components within the ceramic products.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 13, 2014
    Applicant: The Catholic University of America
    Inventors: Hao Gan, Malabika Chaudhuri, Biprodas Dutta, Ian L. Pegg
  • Patent number: 8663585
    Abstract: A system, method, and composition for generating a composition made from a combination of fly ash, FGD purge water, a fixation agent such as lime, and/or synthetic gypsum which, when mixed in the right proportions, results in a material that is easily handled and sets up over time in a relatively impermeable manner that significantly reduces the leaching of contaminants that would otherwise be readily available for release into the environment.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 4, 2014
    Assignee: Mississippi Lime Company
    Inventor: Thomas E. Siedhoff
  • Patent number: 8575415
    Abstract: The present invention provides processes to immobilize high alkaline radioactive and/or hazardous waste in a silicate-based glass, the waste containing one or more of radionuclides, hazardous elements, hazardous compounds, and/or other compounds. The invention also provides silicate-based glass compositions for use in immobilizing radioactive and/or hazardous waste.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: November 5, 2013
    Assignee: Geomatrix Solutions, Inc.
    Inventors: Anatoly Chekhmir, Arthur Gribetz
  • Patent number: 8512216
    Abstract: A method for filling a container with hazardous waste includes moving the container to a first location where a filling head adds the hazardous waste to the container, vents air from the container, and mixes the hazardous waste in the container. A lid is coupled to the container while it is at the first location.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: August 20, 2013
    Assignee: Energysolutions, LLC
    Inventors: Gordon Crawford, David Skeath, Gary Buss
  • Patent number: 8506467
    Abstract: A process is provided for treating produced water recovered from an oil recovery process. An oil-water mixture is collected from an oil bearing formation. The oil-water mixture is directed to a separator that separates the oil-water mixture to yield produced water and an oil product. The produced water includes water, dissolved organics and dissolved inorganic solids. The produced water is directed to a crystallizer. In the crystallizer, the produced water is concentrated by heating the produced water. Concentrating the produced water causes the organic and inorganic solids to precipitate from the produced water and form solid crystals, including salt crystals. Further, concentrating the produced water in the crystallizer produces an organic melt including the solid crystals. Thereafter, the method or process entails cooling the organic melt such that the organic melt solidifies into an organic solid structure, and wherein substantially no free water is present in the organic solid structure.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: August 13, 2013
    Assignees: Veolia Water Solutions & Technologies North America, Inc., Statoil Canada Ltd.
    Inventors: Keith R Minnich, David E. Gamache, John Kus
  • Patent number: 8460555
    Abstract: This invention reveals to the public the centralized sump oil and acid oil treatment process and system. The process consist of (1) the filter; (2) entry to reaction kettle, the sodium carbonate solution added at the time of air floatation till PH value keeps about 6.0-8.0; and emulsion splitter and flocculating agent added for further reaction; (3) suspension of air floatation and static settlement; (4) the international crude oil is collected after the detergent oil at the upper level of the reaction kettle is dehydrated under normal and reduced pressure; the wastewater is drained after filtering by the natural oil removal tank and the oil-water filter; the sludge is solidified by the cement and the quick lime and aluminium oxide are used as the coagulant aid for solidifying the sludge.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: June 11, 2013
    Inventor: Gang Yuan
  • Patent number: 8430803
    Abstract: The present invention discloses a method for solidifying and stabilizing waste acid including steps of condensing waste acid containing phosphoric acid to reduce the volume; mixing the condensed waste acid with waste acid containing fluoroboric acid to solidify and stabilize the mixed waste acid. The pH of the mixed acid is adjusted by adding barium hydroxide as a neutralizer. The efficiency of solidifying waste acid can be improved by partially granulating and by adding solidifying agent indirectly. The method of the present invention can prevent intensely exothermic reaction caused by adding solidifying agents. Furthermore, the method of the present invention is controlled in a temperature of 30 to 45° C. to improve the polymerization of the mixed waste acid so that the efficiency of solidification thereof can be also improved.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 30, 2013
    Assignee: Atomic Energy Council—Institute of Nuclear Energy Research
    Inventors: Ching-Tsuen Huang, Ching-Tu Chang
  • Patent number: 8404920
    Abstract: Disclosed are methods for treating hazardous materials, such as those which result from an unwanted spill or leak, which comprise one or more of the steps or effects of: neutralizing the dispersed material; solidifying the dispersed material; immobilizing the material; and/or reducing the evolution of harmful or unwanted gaseous forms from the spillage, preferably using a binding agent which comprises a polyacrylate-polyacrylamide cross-linked copolymer.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: March 26, 2013
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Ian Shankland
  • Patent number: 8389439
    Abstract: Compositions and methods for producing a manufactured product, a method for making a liquid absorbent, and processes for disposal of flammable liquids with a flue gas desulfurization by-product. The compositions for the manufactured products combine a binder and the by-product. The composition contains a greater percentage by weight of the by-product than the binder. The methods for producing manufactured products include dewatering the gypsum-depleted waste stream to reduce a water content, and forming the manufactured product. The method for making a liquid absorbent includes dewatering, granulating, drying, heating, and packaging a granulated gypsum-depleted composition as the liquid absorbent. The processes for disposal of flammable liquids include distributing a by-product into contact with flammable liquid, absorbing the liquid, transporting, and igniting the flammable liquid. The artificial soils are a combination of by-product and animal waste.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 5, 2013
    Assignee: Utter Technology, LLC
    Inventor: Terry D. Utter
  • Patent number: 8334421
    Abstract: A method of rendering hazardous materials less dangerous comprising trapping the hazardous material in nanopores of a nanoporous composite material, reacting the trapped hazardous material to render it less volatile/soluble, sealing the trapped hazardous material, and vitrifying the nanoporous material containing the less volatile/soluble hazardous material.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: December 18, 2012
    Assignee: Sandia Corporation
    Inventors: Huizhen Gao, Yifeng Wang, Mark A. Rodriguez, Denise N. Bencoe
  • Patent number: 8246916
    Abstract: Disclosed herein is provided an evaporator/calciner in which hazardous materials, such as radioactive liquids, are converted into chemically stable, solid forms by evaporating, drying and calcination within a single vessel, that can then be sealed and used for long term storage.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: August 21, 2012
    Assignee: Atomic Energy of Canada Limited
    Inventors: Kenneth James Franklin, Andrew Donald Kettner, Bruce Wayne Hildebrandt, Howard Charles Jessup, Jr.
  • Patent number: 8119087
    Abstract: Provided is a method of stabilizing and solidifying elemental mercury using sulfur and paraffin. The method includes reacting elemental mercury with sulfur to prepare a mercury sulfide compound, adding a mixture of the mercury sulfide compound and the remaining sulfur after the reaction to high-temperature liquid paraffin to melt the remaining sulfur, and cooling the sulfur to solidify the mercury sulfide compound. According to the method of stabilizing and solidifying elemental mercury using sulfur and paraffin, a surface of a solidified product is covered with a thin paraffin layer to prevent exposure to the outside.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: February 21, 2012
    Assignee: Industry Academic Cooperation Foundation, Yonsei University
    Inventors: Tai Gyu Lee, Kyung Su Song, Yujin Eom
  • Patent number: 8114004
    Abstract: A Method and Device for solidification of waste liquids and fluids is disclosed, which is particularly well suited to processing radioactive waste fluids. Set forth is a receiving unit or subassembly for housing solidification agent, and one or more manifold units or subassemblies positioned within the receiving unit for providing waste fluid. The subassemblies operate in relation to each other to provide, position and mix solidification agent or polymer with waste fluid so that a dirt-like polymerized waste product is produced and positioned in the container for removal or later safe shipment or storage. Mathematical relationships, in preferred embodiments or aspects are utilized in determining number and sizing of manifold openings, and pressure of waste to be provided, to meet the requirements of waste fluids to be transported through these openings into the receiving unit.
    Type: Grant
    Filed: December 30, 2006
    Date of Patent: February 14, 2012
    Inventors: Dennis A. Brunsell, Larry E. Beets
  • Patent number: 8115044
    Abstract: The present invention provides processes to immobilize high alkaline radioactive and/or hazardous waste in a silicate-based glass, the waste containing one or more of radionuclides, hazardous elements, hazardous compounds, and/or other compounds. The invention also provides silicate-based glass compositions for use in immobilizing radioactive and/or hazardous waste.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: February 14, 2012
    Assignee: GeoMatrix Solutions, Inc.
    Inventors: Anatoly Chekhmir, Arthur Gribetz
  • Publication number: 20110301399
    Abstract: A method for disposing of liquid aqueous laboratory waste is described, which involves solidifying the liquid waste with a suitable isovolumic, space-filling superabsorbent polymer within a disposable impermeable film-type container held in an open top, reusable rigid outer container such as a laboratory beaker, and closing and removing the disposable container containing the solidified waste from the rigid outer container. The waste held in the film-type container can be finally disposed of through incineration or deposit in a suitable landfill.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 8, 2011
    Inventor: Daniel Perlman
  • Publication number: 20110230699
    Abstract: A method and process for recycling municipal and chemical wastes to obtain reusable materials or products for manufacturing of new goods. The present invention processes reusable chemicals for energy and reusable raw materials for manufacturing and reselling of products. Through the separation of municipal wastes, the user is able to further distinguish the distinct properties of the involved materials by its raw components and useful, potentially reusable chemical components. By the method of reprocessing raw materials, the present invention yields newly made products that are reusable and available for resale out of old scraps of chemical or municipal waste. Recycled products include and are not excluded to toys, kitchen appliances, military weaponry, missiles, fireworks, and vehicles.
    Type: Application
    Filed: September 15, 2010
    Publication date: September 22, 2011
    Inventor: Nichelle REESE
  • Patent number: 7994379
    Abstract: A radioactive containment composition may be created for containing radionuclides from a radioactive material by mixing a clay mineral with water. This mixture may form an aqueous clay suspension. The mixture can be refined by filtering to remove coarse material. The aqueous clay suspension may be applied to a radioactive material, allowing the radionuclides to be exchanged with cations in the aqueous clay suspension. The resulting aqueous slurry, a silver-based solution may be added to produce a suspension. The suspension may be collected, heated and analyzed.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: August 9, 2011
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Stephen C. Elmore, Mark P. S. Krekeler, Danielle Stoll, Cynthia M. Tselepis
  • Publication number: 20110144409
    Abstract: Disposal of medications presents a multifaceted problem where medications disposed of via sewage systems can eventually affect water supplies. Meanwhile disposal via normal solid waste systems faces a similar problem and have the added dilemma of potential diversion of drugs of abuse. Combining those medications with an absorbent mixture containing bentonite clay with other absorptive materials allows those medications to be disposed of in a form that limits exposure to a water supply while simultaneously hedging diversion.
    Type: Application
    Filed: January 20, 2009
    Publication date: June 16, 2011
    Inventor: Justin Kory Neal
  • Patent number: 7825288
    Abstract: The present invention provides processes to immobilize radioactive and/or hazardous waste in a borosilicate glass, the waste containing one or more of radionuclides, hazardous elements, hazardous compounds, and/or other compounds. The invention also provides borosilicate glass compositions for use in immobilizing radioactive and/or hazardous waste.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 2, 2010
    Assignee: GeoMatrix Solutions, Inc.
    Inventors: Anatoly Chekhmir, Arthur Gribetz
  • Publication number: 20100179369
    Abstract: Industrial process for the treatment of RSW without selecting, that after being milled are added with sanitizing solutions, binders and hardeners which chemically immobilize them avoid the production of percolating liquids, leaching of heavy metals and generation of greenhouse gases. The resulting material—a grey, warm and malleable paste—forges, allowing diverse uses; it can be directly buried in the ground without special protections; can be used as construction material for urban furniture or architectural structures; or can be anchored in the ocean, building habitats of ocean ecosystems, if it is properly packaged in waterproof material.
    Type: Application
    Filed: September 19, 2007
    Publication date: July 15, 2010
    Inventor: Jose Alberto Ochoa Disselkoen
  • Publication number: 20100168498
    Abstract: Apparatus, process and article for treating an aqueous solution containing a chemical contaminant. The process includes contacting an aqueous solution containing a chemical contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of chemical contaminants. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, cerium oxalate and/or a cerium salt. The aggregate composition can include more than 10.01% by weight of the insoluble rare earth-containing compound, and in a particular embodiment consists essentially of one or more cerium oxides, and optionally a binder and/or flow aid. Although intended for a variety of fluid treatment applications, such applications specifically include removing or detoxifying chemical contaminants in water.
    Type: Application
    Filed: March 10, 2010
    Publication date: July 1, 2010
    Applicant: MOLYCORP MINERALS, LLC
    Inventors: John L. Burba, III, Richard D. Witham
  • Patent number: 7744761
    Abstract: Desalination methods that include carbonate compound precipitation are provided. In certain embodiments, feed water is subjected to carbonate compound precipitation conditions prior to desalination. In certain embodiments, desalination waste brine is subjected to carbonate compound precipitation conditions. In yet other embodiments, both feed water and waste brine are subjected to carbonate compound precipitation conditions. Aspects of embodiments of the invention include carbon dioxide sequestration. Embodiments of the invention further employ a precipitate product of the carbonate compound precipitation conditions as a building material, e.g., a cement. Also provided are systems configured for use in methods of the invention.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: June 29, 2010
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Kasra Farsad, Miguel Fernandez
  • Patent number: 7735274
    Abstract: Hydraulic cement compositions that include a carbonate compound composition, e.g., a salt-water derived carbonate compound composition containing crystalline and/or amorphous carbonate compounds, are provided. Also provided are methods of making and using the hydraulic cements, as well as settable compositions, such as concretes and mortars, prepared therefrom. The cements and compositions produced therefrom find use in a variety of applications, including use in a variety of building materials and building applications.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: June 15, 2010
    Assignee: Calera Corporation
    Inventors: Brent R. Constantz, Cecily Ryan, Laurence Clodic
  • Patent number: 7692058
    Abstract: Mercury is removed from contaminated waste by firstly applying a sulfur reagent to the waste. Mercury in the waste is then permitted to migrate to the reagent and is stabilized in a mercury sulfide compound. The stable compound may then be removed from the waste which itself remains in situ following mercury removal therefrom.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: April 6, 2010
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Mark Fuhrmann, John Heiser, Paul Kalb
  • Publication number: 20100076244
    Abstract: A method for the exclusive and singular treatment of all pharmaceuticals and drugs in any form that have passed their effective date, or are no longer of use to the individual, by mixing the pharmaceuticals and drugs with a granular solidification agent and water to form a non hazardous slurry which will solidify the liquefied pharmaceuticals and drugs into a non hazardous, environmentally friendly mixture safe for disposal into normal solid trash receptacles and landfills, and no longer a potential legal risk from ingestion after depositing into trash system. In this treatment the additional potential health risk and legal liability is eliminated from drugs and pharmaceuticals going into toilets and drains to sanitary sewers or septic tanks, and becoming liquid and untreatable at municipal wastewater treatment plants or septic fields, thereby returning to fresh water resources causing a risk to the general public health.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 25, 2010
    Inventor: Frances Irene Parrott
  • Publication number: 20100056841
    Abstract: Methods of disposing of sorbent bodies comprising at least one toxic element which is substantially prevented from leaching into the surrounding environment are disclosed. The at least one toxic element which is prevented from leaching into the surrounding environment may include, for example, mercury, selenium, or both. The methods of disposing of said sorbent bodies may include, for example, depositing the sorbent bodies in a landfill. Landfill-disposable sorbent bodies which are configured to substantially prevent leaching into the surrounding environment of at least one toxic element are also disclosed.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 4, 2010
    Applicant: CORNING INCORPORATED
    Inventors: Kishor Purushottam Gadkaree, Anbo Liu, Shaole Wu
  • Patent number: 7666370
    Abstract: The present disclosure relates to a process for recycling a sodium salt by decomposition of a sodium nitride liquid waste, comprising a neutralization step in which a nitric acid liquid waste or an off-gas having nitric acid dissolved therein which is produced through a wet reprocessing process comprising a dissolution step for dissolving a spent nuclear fuel in nitric acid is neutralized by adding or contacting the nitrate liquid waste or the off-gas to or with at least one sodium salt selected from the group consisting of sodium hydroxide, sodium hydrogencarbonate and sodium carbonate, thereby yielding a sodium nitrate liquid waste; a sodium nitrate-decomposition step in which the sodium nitrate liquid waste is reductively decomposed with a reducing agent, thereby decomposing sodium nitrate into a nitrogen gas and the sodium salt; and a recycle step for recycling the sodium salt into the neutralization step or wet reprocessing process.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: February 23, 2010
    Assignee: Japan Nuclear Fuel Limited
    Inventors: Yoshinobu Takaoku, Yukio Sumida, Noriyasu Moriya
  • Patent number: 7663014
    Abstract: A radioactive containment composition may be created for containing radionuclides from a radioactive material by mixing a clay mineral with water. This mixture may form an aqueous clay suspension. The mixture can be refined by filtering to remove coarse material. The aqueous clay suspension may be applied to a radioactive material, allowing the radionuclides to be exchanged with cations in the aqueous clay suspension. The resulting aqueous slurry, a silver-based solution may be added to produce a suspension. The suspension may be collected, heated and analyzed.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: February 16, 2010
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Mark P. S. Krekeler, Stephen C. Elmore, Cynthia M. Tselepis, Danielle Stoll
  • Publication number: 20090306452
    Abstract: The invention relates a sorbent and method of using the sorbent, more specifically to an inert sorbent and a method for treating an environmentally contaminated zone with the inert sorbent.
    Type: Application
    Filed: May 19, 2009
    Publication date: December 10, 2009
    Inventor: Frederick C. Payne
  • Patent number: 7589248
    Abstract: Mercury is removed from contaminated waste by firstly applying a sulfur reagent to the waste. Mercury in the waste is then permitted to migrate to the reagent and is stabilized in a mercury sulfide compound. The stable compound may then be removed from the waste which itself remains in situ following mercury removal therefrom.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 15, 2009
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Mark Fuhrmann, John Heiser, Paul Kalb
  • Patent number: 7550645
    Abstract: The present invention provides processes to immobilize radioactive and/or hazardous waste in a borosilicate glass, the waste containing one or more of radionuclides, hazardous elements, hazardous compounds, and/or other compounds. The invention also provides borosilicate glass compositions for use in immobilizing radioactive and/or hazardous waste.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: June 23, 2009
    Assignee: Geomatrix Solutions, Inc.
    Inventors: Anatoly Chekhmir, Arthur Gribetz
  • Patent number: 7517405
    Abstract: Disclosed herein is a composition for solidifying soil and industrial waste. The solidifying composition contains 16-24 wt % of straight asphalt, 0.06-0.10 wt % of an emulsifier for asphalt, 0.8-1.2 wt % of light oil, heavy oil or a mixture thereof, 0.01-0.03 wt % of calcium chloride, 0.8-1.2 wt % of lignin, 0.7-1.3 wt % of an acrylic emulsion-based asphalt modifier, 0.13-0.21 wt % of sodium hydroxide, 0.22-0.34 wt % of oleic acid, and the balance of water. A solidified material formed using this solidifying composition has increased density, strength and elasticity, improved durability and a short curing time. Furthermore, the solidifying composition enables soil and industrial waste to be recycled as a substitute for stone materials, such that it allows material sources to be readily secured in public or construction work fields, leading to a reduction in construction cost, and can also contribute to the preservation of the natural environment.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: April 14, 2009
    Assignee: Charista Global Corp
    Inventor: Kap-Sok Yi
  • Publication number: 20090093665
    Abstract: A method of solidifying toxic or hazardous liquid waste, including the steps of pumping an aqueous waste, e.g., from a drilling fluid holding area; through a shearing device; adding the layered phyllosilicate to said aqueous waste in an amount sufficient to solidify the aqueous waste sufficiently such that the solidified aqueous waste has no free liquid; shearing the pumped aqueous waste, containing said layered phyllosilicate, sufficiently to partially exfoliate the layered phyllosilicate into phyllosilicate platelets and tactoids while in contact with the aqueous waste; pumping the sheared aqueous waste and layered phyllosilicate to a solidification area; and allowing the sheared aqueous waste and partially exfoliated layered phyllosilicate sufficient time to solidify such that there are no free liquids remaining in the solidified waste.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 9, 2009
    Applicant: AMCOL International Corporation
    Inventors: Alan A. Ross, Dave Kotloski, Giovanni Occhipinti
  • Publication number: 20090062594
    Abstract: There is described a method of treating a waste having both liquid and solid fractions, the method consisting of adding to the waste a mineral absorbent in an amount from about 1.5 to 10 weight percent of the waste.
    Type: Application
    Filed: October 20, 2008
    Publication date: March 5, 2009
    Applicant: Newpark Canada Inc.
    Inventors: Bradley Cadieux, Aaron Trites
  • Publication number: 20090023973
    Abstract: A process for melting material to be treated includes placing material to be treated in a container that may include an insulating lining, heating the material to be treated and melting the material to be treated, preferably allowing the melted material to cool to form a vitrified and/or crystalline mass, and disposing of the mass. The mass is either disposed while contained in container or removed from container after cooling and disposed. Heat loss and melt-surface disruptions can be minimized with an engineered overburden material, which covers at least a portion of an exposed surface of the material to be treated.
    Type: Application
    Filed: January 27, 2006
    Publication date: January 22, 2009
    Inventors: Patrick S. Lowery, Leo E. Thompson, Craig Timmerman, Jack L. McElroy, Brett E. Campbell, James E. Hansen
  • Patent number: 7476194
    Abstract: A method of waste stabilization by mineralization of waste material in situ in a treatment container suitable or treatment, transit, storage and disposal. The waste material may be mixed with mineralizing additives and, optionally, reducing additives, in the treatment container or in a separate mixing vessel. The mixture is then subjected to heat in the treatment container to heat-activate mineralization of the mixture and form a stable, mineralized, monolithic solid. This stabilized mass may then be transported in the same treatment container for storage and disposal.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: January 13, 2009
    Assignee: Studsvik, Inc.
    Inventors: John Bradley Mason, Thomas W. Oliver
  • Publication number: 20090005629
    Abstract: A method for restraining a chemical discharge comprising (a) deploying a binding agent into a receptacle containing a hazardous material in a liquid state upon the occurrence of at least one predetermined event that increases the risk of accidentally discharging or leaking the hazardous material from the receptacle; and (b) contacting the hazardous material with the binding agent to form a composition comprising at least a portion of the hazardous material and the binding agent and having at least one property selected from a solid or semisolid state, a viscosity greater than the hazardous material s viscosity at ambient conditions, a vapor pressure lower than the hazardous material s vapor pressure at ambient conditions, and a surface tension greater that the hazardous material s surface tension.
    Type: Application
    Filed: June 4, 2008
    Publication date: January 1, 2009
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Rajiv R. Singh, Ian Shankland, Colleen D. Szuch