Chemical Patents (Class 405/263)
  • Patent number: 10837153
    Abstract: Various examples are provided for in situ growth of subsurface structures using bioinspired mineralization. In one example, among others, a method for growth of a subsurface structure includes introducing a first aqueous mineral salt reactant and a second aqueous mineral salt reactant comprising a polymeric additive into a soil substrate. The first and second aqueous mineral salt reactants can combine to form a polymer-induced liquid-precursor (PILP) phase that initiates in situ mineralization in the soil substrate. Solidifying the mineralization can form a subsurface structure in the soil substrate. Multiple applications of aqueous mineral salt reactants can be introduced to adjust the thickness of the mineralization or for layers of coatings.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: November 17, 2020
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Scott Joseph Wasman, Douglas Rodriguez, Laurie A. Gower
  • Patent number: 10647617
    Abstract: An aqueous solution of carbonic anhydrase and calcium chloride is contacted with a cementitious surface defining at least one opening or fissure in the presence of ambient carbon dioxide to thereby cause the calcium chloride and carbon dioxide to react, whereby calcium carbonate precipitate from the solution and seals the opening or fissure.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 12, 2020
    Assignee: Worcester Polytechnic Institute
    Inventors: Nima Rahbar, Suzanne Frances Scarlata, Jessica Anne Rosewitz
  • Patent number: 10618842
    Abstract: The invention relates to a process for producing a composition suitable as accelerator for the curing of cement, by contacting the components aa) at least one component selected from the series of hydraulic binders and/or latent hydraulic binders, and bb) at least one dispersant suitable for the dispersing of inorganic particles in water, and cc) water, the weight ratio of components aa) to cc) being between 1.5:1 and 1:70, wherein the rate ratio of components aa) to bb) is between 20:1 and 1:2. In addition, the use of the composition obtained as hardening acceleration for chemical mixtures in construction is disclosed.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 14, 2020
    Assignee: BASF SE
    Inventors: Torben Gaedt, Christoph Hesse
  • Patent number: 10563233
    Abstract: The present invention provides methods for mineral precipitation and/or cementation of permeable or fractured non-porous materials using isolated urease.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: February 18, 2020
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Edward Kavazanjian, Nasser Hamdan
  • Patent number: 10519372
    Abstract: The present invention provides a soil erosion prevention agent which is excellent in the freeze-thaw stability while maintaining the soil erosion prevention effect. When a toluene-insoluble matter of the water-borne resin emulsion is 60 mass % or more and a content of the water-soluble polymer in the soil erosion prevention agent is 1 to 7 mass %, preferably 3 to 5 mass %, the soil erosion prevention agent excellent in the freeze-thaw stability is provided and suitable for greening and a spraying material. The water-borne resin emulsion is preferably a resin containing a structural unit derived from vinyl acetate, or an ethylene-vinyl acetate copolymer emulsion.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: December 31, 2019
    Assignee: DENKA COMPANY LIMITED
    Inventors: Koichi Fukuda, Hironori Konishi, Kazuhiro Kote
  • Patent number: 10458184
    Abstract: The invention relates to a ground processing tool and a method for creating a borehole in the ground, wherein ground material is removed by the ground processing tool and blended with a fluid in the created borehole to form a suspension, which is suctioned away via at least one opening in the at least one mixing blade and via the conducting channel in the central shaft.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 29, 2019
    Assignee: BAUER Maschinen GmbH
    Inventors: Stefan Michael Finkenzeller, Juergen Klippenstein, Manfred Schweiger, Thomas Bauer
  • Patent number: 10344440
    Abstract: Methods including providing a hydrajetting tool comprising a housing having a top end and a bottom end and having a plurality of jetting nozzles disposed thereon, the top end of the housing fluidly coupled to a tool string; providing at least one sub-soil-surface cavity adjacent to or in unstable soil, the unstable soil having a plurality of channels therein; introducing the hydrajetting tool into the at least one sub-soil-surface cavity; injecting a cement slurry through at least one of the jetting nozzles and into the sub-soil-surface cavity; permeating the cement slurry into the plurality of channels in the unstable soil; filling the at least one sub-soil-surface cavity with the cement slurry; and curing the cement slurry, thereby forming a stable soil and a cement pillar in the at least one sub-soil-surface cavity.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: July 9, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jim Basuki Surjaatmadja
  • Patent number: 10066355
    Abstract: A device for obtaining C.G.S injection control chart for seismic retrofitting and controlling quality includes a pump unit which injects a grout into the ground in predetermined quantities per unit time at an injection pressure that is a predetermined static pressure; a sensor unit which measures a discharge pressure which is a pressure at which the grout injected into the ground through the pump unit is discharged from the pump unit; and a monitoring unit which calculates injection control charts for each depth on the basis of injection quantities per unit time of the grout being supplied by the pump unit, and the discharge pressure measured by the sensor unit.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: September 4, 2018
    Assignees: XENON GROUND TECHNOLOGY CORP., DENVER KOREA E&C CO., LTD.
    Inventors: Doo Sub Sim, Ji Hyun Park
  • Patent number: 9790418
    Abstract: This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a wellbore and make contact with well cements placed during primary cementing or previous remedial cementing operations.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: October 17, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Simon Gareth James, Michel Michaux, Clara Carelli, Sylvaine Le Roy-Delage
  • Patent number: 9695567
    Abstract: Methods and systems for monitoring and controlling a grouting operation are described. In one aspect, the method includes: performing the grouting operation by injecting grout into a borehole and cyclically: monitoring the borehole pressure until the borehole pressure equals a first pressure threshold; in response to determining that the borehole pressure equals the first pressure threshold, halting the injection of grout into the borehole; monitoring the borehole pressure until the borehole pressure decreases to a second pressure threshold, the second pressure threshold being lower than the first pressure threshold; in response to determining that the borehole pressure equals the second pressure threshold, restarting injection of grout into the borehole, until a terminating condition is satisfied and, as a result, terminating the grouting operation.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: July 4, 2017
    Assignee: Mayland Metallic Materials Ltd.
    Inventors: Xiaofeng Li, Shuihan Li
  • Patent number: 9518208
    Abstract: The gelling agent for water shut-off in oil and gas wells is a composition that forms a gel to reduce or eliminate the flow of water in a gas or oil well. The composition is formed by mixing polyvinyl alcohol, a polyvinyl alcohol copolymer, or mixtures thereof with an amino-aldehyde oligomer, such as urea formaldehyde or melamine formaldehyde, with or without a cross-linker. The polymer composition can be used to minimize or completely shut off excess water production with insignificant reduction in hydrocarbon productivity.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: December 13, 2016
    Inventor: Shawqui M. Lahalih
  • Patent number: 9441150
    Abstract: Treatment fluids comprising an aqueous fluid and a low-leakoff particulate, wherein the low-leakoff particulate comprises a low molecular weight modified polysaccharide that has been crosslinked with a crosslinking agent wherein the low molecular weight modified polysaccharide contains one or more of the following monosaccharide units: galactose, mannose, glucoside glucose, xylose, arabinose, fructose, glucuronic acid, or pyranosyl sulfate.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: September 13, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul D. Lord, Jimmie D. Weaver, Ivan M. Suleiman
  • Patent number: 9315964
    Abstract: A method for evacuating transfer air contained in a binding agent from a mixture of pressurized air and binding agent uses an apparatus comprising means for producing pressurized air, a binding agent container, a supply pipe for the mixture of pressurized air and binding agent, and an apparatus for mixing the binding agent into the earth mass.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: April 19, 2016
    Assignee: ALLU GROUP OY
    Inventor: Markku Jonninen
  • Patent number: 9200422
    Abstract: Method and arrangement for supporting a structure. Beneath the structure there is arranged a cohesion structure, which transfers the structure load through shaft adhesion to surrounding ground. The cohesion structure includes an expansion element having a wall of flexible material, inside which there is injected along an injecting pipe unreacted polymer, which reacts in the expansion element. The expansion element with the reacted polymer therein constitutes the cohesion pillar. The polymer is water absorbing material and the wall of the expansion element is of water-permeable material, whereby the cohesion pillar is arranged to absorb water from the surrounding ground so as to improve the adhesion between the expansion element and the surrounding ground.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 1, 2015
    Assignee: Uretek Worldwide OY
    Inventors: Sami Hakkinen, Tuomas Lievonen, Antti Perala
  • Patent number: 9102859
    Abstract: A brine membrane method for controlling dust on a saline lakebed is disclosed comprising the steps of creating or locating an existing wetting basin, depositing precipitated salts in the basin, and depositing a brine over the salts to form a brine membrane.
    Type: Grant
    Filed: July 14, 2013
    Date of Patent: August 11, 2015
    Inventor: David P. Groeneveld
  • Patent number: 9033618
    Abstract: Methods for preventing, reducing, or eliminating construction heave, expansion, distresses, and damage primarily caused by the formation of ettringite are disclosed including introducing fluoride ion releasing agent/salt(s), such as sodium fluoride, calcium fluoride, and potassium fluoride, to expansive soil layers or concrete structural elements and allowing the fluoride ion releasing agent/salt(s) at ambient temperature to react with formed ettringite and to prevent the formation of ettringite of the expansive soil layers or concrete structural elements. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: May 19, 2015
    Assignee: American AccuTech Ltd. Co.
    Inventors: Yun Deng, Lianxiang Du
  • Patent number: 9022698
    Abstract: A method of chemically and physically treating unconsolidated soils, over burden, fill and certain waste materials (the “ground”), or partly consolidated materials that can be excavated and broken up by normal earth moving and soil mixing equipment. This treatment results in the reduction of permeability in the ground, and as a result permits the prevention or control of contaminant migration from a site containing ground wastes of various types, thereby isolating these wastes.
    Type: Grant
    Filed: April 27, 2008
    Date of Patent: May 5, 2015
    Assignee: Terra Seal, LLC
    Inventors: John M. Bird, George W. Putman
  • Patent number: 8974152
    Abstract: A polymer grouting method for constructing a vertical supporting system, includes following steps of: (1) structuring an integrated polymer water-blocking panel; (2) constructing a polymer coping of a polymer vertical supporting system; (3) constructing polymer anchors on the integrated polymer water-blocking panel; (4) processing constructing connection of the polymer anchors; and (5) excavating vertically by layer in turn, wherein step (3) and step (4) is repeated until a construction of the polymer vertical supporting system reaches a projected depth, and then the construction of the polymer vertical supporting system is completed. The polymer vertical supporting system constructed according to the present invention has advantages, such as convenience, lightness, high tenacity, economy, and lasting long. The slots of foundation pits, side slopes, municipal pipelines, etc. can be excavated vertically fast by adopting the present invention.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: March 10, 2015
    Assignee: SAFEKEY Engineering Technology(Zhengzhou), Ltd.
    Inventors: Fuming Wang, Mingsheng Shi, Bei Zhang, Chengchao Guo, Yanhui Pan
  • Publication number: 20150056021
    Abstract: A method for treatment of saline-alkali land is provided, comprising at least one self-circulating process, the self-circulating process comprising: step 1, converting saline-alkali water deposited in the saline-alkali land into acidic water by an electrolysis system, whereby the salt content of the acidic water is lower than that of the saline-alkali water; and step 2, leaching the saline-alkali land with leaching water comprising the acidic water. A device for treatment of saline-alkali land according to the above-described method is also provided, comprising: an electrolysis system for converting saline-alkali water deposited in the saline-alkali land into acidic water, whereby the salt content of the acidic water is lower than that of the saline-alkali water; and a leaching system for leaching the saline-alkali land with leaching water comprising the acidic water.
    Type: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Inventors: Zhijiang GUO, Yang YU, Hongwei CHEN, Gong JIN, Jiangping TU, Xiuli WANG
  • Publication number: 20150016895
    Abstract: A method of soil stabilization includes mixing a geopolymer material with an alkaline activator and adding 5 to 30 percent by weight of the mixture to a soil.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Applicants: UNIVERSITI MALAYSIA PERLIS, KING ABDUL AZIZ CITY SCIENCE & TECHNOLOGY (KACST)
    Inventors: MOHD MUSTAFA AL BAKRI ABDULLAH, MUHAMMAD FAHEEM MOHD TAHIR, KAMARUDIN HUSSIN, SHARIFAH ZALIHA SYED ZUBER, ALIDA ABDULLAH, MUHD IZZAT AHMAD, CHE MOHD RUZAIDI GHAZALI, FAUZIAH AHMAD, MOHAMMED BINHUSSAIN
  • Patent number: 8931978
    Abstract: A cutting/mixing tool for thin diaphragm walls is mounted at the end of at least one drilling rod (47) moved by a slidable assembly (42, 62) along a tower (41), carried by an operating drilling machine (40). The tool (45) has a body (10), which bears in its central part two digging/mixing wheels (20a, 20b) provided on the periphery with cutters (82) and set alongside one another at a minimum distance (d) and coaxial about an axis (x) substantially perpendicular to the direction of digging (z). The wheels (20a, 20b) project from slits (81) of the body (10), which contains at least partially means (1-4, 50-52) for transmission of motion to the wheels, the devices being positioned externally with respect to the wheels.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: January 13, 2015
    Assignee: Soilmec S.p.A.
    Inventors: Alessandro Ditillo, Marco Casadel, Ezio Biserna
  • Patent number: 8915678
    Abstract: A multicomponent composition for filling and/or grouting cracks, flaws, and cavities in structures or earth and stone formations, including: i) water; ii) cement; iii) an aqueous plastic dispersion; and iv) at least one monomer, which can be radically polymerized, or a polyisocyanate. A material is thus obtained as a sealant having both a swelling capacity and expandability.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 23, 2014
    Assignee: Sika Technology AG
    Inventors: Nabil Boulkertous, Magnus Kloster, Klaus Peter Meyer
  • Publication number: 20140369767
    Abstract: A method for controlling dust on a saline lakebed is disclosed comprising the steps of commencing the flooding of a wetting basin, testing to determine if there is a sufficient level of salts which when flooded will produce a brackish solution, testing the temperature of the lakebed substrate and curtailing further flooding of the lakebed depending on the substrate temperature.
    Type: Application
    Filed: June 15, 2013
    Publication date: December 18, 2014
    Inventor: David P. Groeneveld
  • Publication number: 20140348594
    Abstract: A method of preventing burning of flammable materials near a wildfire has the steps of a. providing gluten; b. providing water; c. mixing the gluten and the water to produce a gluten-water mixture; d. providing a sprayer; e. placing the gluten-water mixture in the sprayer; and f. spraying the flammable materials with an even coat of the gluten-water mixture in sufficient quantity to coat the materials and prevent burning. Gypsum and/or glycerin can be added to the gluten-water mixture. The mixture also can be applied to dusty soil to control dust and erosion.
    Type: Application
    Filed: August 16, 2012
    Publication date: November 27, 2014
    Inventor: Dan Dwight Sinclair
  • Patent number: 8882396
    Abstract: There is described a method of consolidating foundation soils and/or building sites in general, which comprises injections of expanding chemical products which are projected and carried out by means of monitoring the effects which are progressively measured in the soil in the course of treatment by means of sequential tomographies of the electrical resistivity. Those consolidating injections will be carried out until the percentage variation of the electrical resistivity ??(%), measured in quasi-real time in the soil being treated and always with respect to the initial condition before the injection will not constitute sequential gradients (Nth) which differ from the preceding one (N?1) for variations contained in the range ±5%.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: November 11, 2014
    Assignee: Geosec S.R.L.
    Inventor: Marco Occhi
  • Publication number: 20140321925
    Abstract: Stabilizing smectite shale may include treating a smectite shale in a subsurface formation with a dewatering fluid so as to yield a stabilized smectite shale, the dewatering fluid comprising an aqueous base fluid and a dewatering additive. In some instances, at least a portion of a highwall in a highwall mine may be formed at a highwall mine site comprising stabilized smectite shale.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 30, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Charles R. Landis, Thomas S. Cortner, Eric B. Frantz
  • Publication number: 20140301792
    Abstract: A method for controlling dust on a saline dry lakebed or similar environment enriched with sodium carbonate and sodium sulfate is disclosed comprising, the Interim Solution method that achieves resistance to windborne dust release. The Interim Solution is a dilute aqueous solution containing a divalent cation chloride salt and anionic polyacrylamide that can be applied to dust-emission prone lakebed surfaces by spraying or other means that achieves a relatively even application. The chemical reaction that occurs upon contact of the Interim Solution with the salts of the lakebed soil creates stable compounds that are interconnected by the long-chain molecules of the polyacrylamide that binds the molecules derived by the chemical reaction into a surface skin that protects against wind erosion. A salt byproduct, sodium chloride, remains soluble in the near surface soil will tend to seal the surface against evaporation.
    Type: Application
    Filed: April 4, 2013
    Publication date: October 9, 2014
    Inventor: Groeneveld P. David
  • Publication number: 20140294515
    Abstract: The present invention relates to a method for producing polymers that are suitable for absorbing and storing aqueous liquids, and to polymers that can be obtained by this method. This invention further related to the use of such polymers. The method comprises the following steps: i. crosslinking free-radical polymerization of a monomer composition M comprising a) at least one monomer A having an ethylenic double bond and at least one neutralizable acid group or a group hydrolyzable to a neutralizable acid group, b) optionally one or more comonomers B which are different than the monomers A and have one ethylenic double bond, and c) 0.05 to 10% by weight, based on the total amount of monomers A and B, of at least one crosslinker C, in the presence of at least one polysaccharide-comprising substance S, in an aqueous liquid, where the weight ratio of the monomer composition M to the substance S is in the range from 9:1 to 1:9; and ii.
    Type: Application
    Filed: October 26, 2012
    Publication date: October 2, 2014
    Applicant: BASF SE
    Inventors: Michael Diamantoglou, Christoph Hartmann
  • Publication number: 20140270984
    Abstract: A method for increasing moisture retention in a soil includes applying an effective amount of an effective humectant composition to the soil. The effective humectant composition is identified by determining the average moisture content of the soil for the humectant compositions applied at a minimum humectant concentration level, a maximum humectant concentration level, and at a first concentration level between the minimum and the maximum humectant concentration level. An average slope curve is generated by plotting the determined average moisture content of the soil for each applied humectant concentration levels from the minimum humectant concentration level to the maximum humectant concentration level. An effective humectant composition is determined when the generated average slope curve provides an increasing average moisture content along the entirety of a length of the generated average slope curve and when the generated average slope curve has a p value of 0.05 or less.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: BASF SE
    Inventors: John P. Erickson, Yeonsuk Roh, Daniel Niedzwiecki
  • Publication number: 20140213663
    Abstract: The objective to be solved by the present invention is to provide a novel ice crystallization inhibitor which is industrially useful, which can be efficiently and stably produced in a safe process suitable for a food production without difficulty and which has excellent functions and properties. Also, the objective of the present invention is to provide an antibody which specifically reacts with the ice crystallization inhibitor, and a composition, a food, a biological sample protectant and a cosmetic which contain the ice crystallization inhibitor. Furthermore, the objective of the present invention is to provide a peptide which gives an indication of a protein having an ice crystallization inhibitory activity. The ice crystallization inhibitor according to the present invention is characterized in comprising a seed protein derived from a plant belonging to genus Vigna in Leguminosae, an allied species thereof or an improved species thereof.
    Type: Application
    Filed: March 2, 2012
    Publication date: July 31, 2014
    Inventors: Hidehisa Kawahara, Hideaki Kegasa, Naoki Arai
  • Patent number: 8757935
    Abstract: Equipment serves to form consolidated soil columns having a non-circular cross-section, and includes a mast (2, 8), a rotary (3) which is rotatable and translatable along an axis parallel to the mast, a series of hollow rods (4) temporarily unlockable from the rotary (3), and a device to vary the rotational rate of the rotary in one or more prefixed angular ranges. A rotor (21) is directly secured to one of the rods of the string and operatively coupled to a device (20) generating control signals to vary the rotational speed of the rotary in response to the rotor angular position. A through clamp (10) is mounted to the rotatable mandrel of the rotary and is provided with locking members which can be activated to clamp a rod and make it integral to the rotary, and which can be deactivated to release the rod so as to allow the rotary to move relative to the rod.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: June 24, 2014
    Assignee: Soilmec S.p.A.
    Inventors: Alessandro Ditillo, Maurizio Siepi
  • Publication number: 20140161540
    Abstract: The present invention relates to in-place soil stabilization. Specifically, the present invention relates a method and device for measuring the increase in subsurface earth pressure during the injection of a stabilizing agent into the soil. The rise in sensor pressure indicates an increase in soil strength and bearing capacity. Therefore, real-time monitoring of these pressures may serve as a guide during the injection process.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Applicant: Uretek USA, Inc.
    Inventors: Brent Barron, Michael Bock
  • Publication number: 20140141969
    Abstract: The present invention discloses a method for preparing and using an absorbent material for apolar compounds or mixtures of apolar compounds, such as organic solvents, mineral oil and derivatives thereof, lubricant oils, edible oils, inter alia. The absorbent material is composed of an fabric matrix of high porosity, low density and high mechanical resistance. This matrix is rendered water-proof, thus acquiring the property of absorbing apolar compounds or mixtures of apolar compounds.
    Type: Application
    Filed: May 29, 2013
    Publication date: May 22, 2014
    Inventors: Geraldo MAGELA DE LIMA, Jadson CLÁUDIO BELCHIOR, Daniele SANTOS CAVANELLAS GOMES, Fabrício VIEIRA DE ANDRADE, Geison VOGA PEREIRA, Márcio GUIMARÃES COELHO, Nathália Gabriela SILVA PINHEIRO, Flávia Cristina CAMILO MOURA, Maria Helena DE ARAUJO
  • Publication number: 20140140775
    Abstract: A composition for chemical soil improvement includes a uniform molecular structure synthetic fluid with a substantially uniform molecular structure, a pour point depressant, polyisobutylene, and synthetic fibers, and various combinations thereof, wherein the compotion creates an impermeable layer.
    Type: Application
    Filed: October 11, 2013
    Publication date: May 22, 2014
    Applicant: Midwest Industrial Supply, Inc.
    Inventors: Robert W. Vitale, Cheryl L. Detloff
  • Publication number: 20140140774
    Abstract: A composition for chemical soil improvement includes a synthetic fluid, a pour point depressant, polyisobutylene, and synthetic fibers, and various combinations thereof, used to create a locking mechanism for fine particles.
    Type: Application
    Filed: October 11, 2013
    Publication date: May 22, 2014
    Applicant: Midwest Industrial Supply, Inc.
    Inventors: Robert W. Vitale, Cheryl L. Detloff
  • Publication number: 20140126965
    Abstract: The process “Washing contaminated soils” solves the problem of cleansing and remediating soils and sediments and their fine fractions contaminated with toxic metals, using washing solution with chelating agents. The chelating agent forms water-soluble complexes with metals and thus facilitates metal removal from soils and sediments into the washing solution. In addition to toxic metals, the process according to the invention enables removal of organic pollutants from soils and sediments by using washing solution amended with surfactants, detergents or organic solvents in addition to chelating agents. The process according to the invention provides for simultaneous separation of the soil and sediment solid phase and used washing solution in a chamber filter press, and effective rinsing of the solid phase to remove all residual mobilized contaminants.
    Type: Application
    Filed: June 15, 2012
    Publication date: May 8, 2014
    Applicant: ENVIT, Environmental Technologies and Engineering Ltd.
    Inventor: Domen Lestan
  • Publication number: 20140116960
    Abstract: Various embodiments of contaminant removal systems, compositions, and methods are described herein. In one embodiment, a method for oxidizing a contaminant includes contacting the contaminant with a peroxygen compound and initializing, maintaining, or propagating degradation of the peroxygen compound with an oxygenated organic compound, thereby releasing oxidizing radicals. The method also includes oxidizing the contaminant with the released oxidizing radicals.
    Type: Application
    Filed: June 17, 2012
    Publication date: May 1, 2014
    Applicant: WASHINGTON STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: Richard J. Watts, Mushtaque Ahmad
  • Publication number: 20140105692
    Abstract: A device for treating soil has a soil contact head having at least one discharge orifice therein, and a handle to which the soil contact head is attached. A discharge valve is with the at least one discharge orifice, and a controller is provided for controlling operation of the discharge valve. An actuation trigger is included for initiating an injection event, with the controller being responsive to the actuation trigger to operate the discharge valve in response to the actuation trigger initiating an injection event. The controller controls the duration during which the discharge valve is open during an injection event in response to a single actuation of the actuation trigger. A source of pressurized fluid is flowably connected to the discharge valve, wherein the discharge valve is operable to discharge pressurized fluid through the at least one discharge orifice during an injection event.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 17, 2014
    Inventors: Chris des Garennes, Peter van Drumpt
  • Publication number: 20140097381
    Abstract: Compositions and methods for oxidizing contaminants present in environmental media. The compositions include a mixture of persulfate salts and borate salts to activate the persulfate's oxidation of contaminants.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 10, 2014
    Applicant: REGENESIS BIOREMEDIATION PRODUCTS
    Inventors: BENJAMIN V. MORK, JOY M. GRAVITT
  • Patent number: 8690486
    Abstract: The present invention relates to in-place soil stabilization. Specifically, the present invention relates a method and device for measuring the increase in subsurface earth pressure during the injection of a stabilizing agent into the soil. The rise in sensor pressure indicates an increase in soil strength and bearing capacity. Therefore, real-time monitoring of these pressures may serve as a guide during the injection process.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: April 8, 2014
    Assignee: Uretek USA, Inc.
    Inventors: Brent Barron, Michael Bock
  • Publication number: 20140072373
    Abstract: A treatment slurry is emplaced in soil in columns formed by displacement of soil by a direct push rod, a vibrating beam, or otherwise. The treatment slurry is pumped into the impression created as the rod or vibrating beam is withdrawn from the subsurface, creating a vertical column in the subsurface with a cross-sectional shape of the rod or vibrating beam that is filled with the treatment slurry. The vertical columns are spaced at suitable distances to allow for diffusion of a treatment agent in the treatment slurry into the surrounding soils or sediments to treat the target contaminants in the subsurface soils or sediments.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 13, 2014
    Inventor: Robert D. Mutch
  • Publication number: 20140031196
    Abstract: To develop a Fenton reaction catalyst that can maintain divalent iron stably for a long period of time, can utilize trivalent iron or metallic iron, which is an inexpensive iron-supplying source, by converting into divalent iron, and is harmless to the human body and the environment, provided is a Fenton reaction catalyst, including, as an active component, a reaction product obtained by mixing a specific reducing organic substance (e.g., ascorbic acid, a polyphenol-containing plant component, or a plant dry distillation liquid component) with an iron-supplying source at a predetermined ratio in the presence of water. Also provided are a sterilization method, a pollutant degradation method, and a luminescence method based on chemiluminescence, which involve using the Fenton reaction catalyst.
    Type: Application
    Filed: April 6, 2012
    Publication date: January 30, 2014
    Inventors: Claudio Kendi Morikawa, Makoto Shinohara
  • Publication number: 20130338003
    Abstract: The disclosure concerns methods and compositions for prevention of soil erosion, soil contamination and increased seed germination for agricultural products. Certain methods relate to coating seeds to withstand drought conditions. Other methods relate to soil compositions containing a biopolymer to withstand drought conditions or to prevent erosion, to control dust or to prevent contaminated soil erosion.
    Type: Application
    Filed: December 5, 2011
    Publication date: December 19, 2013
    Applicant: United States As Represented By The Secretary Of The Army
    Inventors: Steven Larson, Gary Nijak, JR., Christopher Griggs, Jeffrey Talley
  • Publication number: 20130259582
    Abstract: A soil adherent pellet is detailed that includes a soluble calcium ion source, a magnesium ion source, or both present in an amount ranging from 15% to 99.9% by weight of a total dry weight of the pellet and a binder present in an amount ranging from 85% to 0.1% by weight of the total dry weight of the pellet. The pellet having a mean pellet domain size and a pellet surface. The soil adherent pellet is well suited for flocculating clay within the soil and delivery of an active ingredient with reduced runoff compared to prior art broadcast particles. A soil adherent pellet is also provided having a soluble calcium and/or magnesium ion source that is polycrystalline and carries therewith an active ingredient.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 3, 2013
    Applicant: The Andersons, Inc.
    Inventors: Timothy D. Birthisel, Joseph Schalk, Joseph Schanski
  • Publication number: 20130183103
    Abstract: The invention relates to a base seal of a dump, in particular a residual salt dump, said seal comprising two layers disposed on top of one another. The upper layer has a mixture of gravel, sand and bentonite or powered clay with a permeability coefficient of k?10?9 m/s and the lower layer has a mixture of sand and bentonite or powered clay with a permeability coefficient of k?5*10?10 m/s.
    Type: Application
    Filed: May 17, 2011
    Publication date: July 18, 2013
    Applicant: K+S Aktiengesellschaft
    Inventors: Ines Feldberg, Hans-Joachim Kind, Matthias Kockx, Michael Lesch, Albrecht Palm, Martin Westphal
  • Patent number: 8459354
    Abstract: A method of sealing a leak of fluid from a container comprises introducing a solute to a body of fluid within the container. The solute is selected so as to be soluble in the fluid at the expected conditions prevailing inside the container, and insoluble when the pressure experienced by the fluid is reduced at the site of a leak.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: June 11, 2013
    Assignee: Heriot-Watt University
    Inventors: Mehran Sohrabi Sedeh, Mahmoud Jamiolahmady
  • Publication number: 20130051929
    Abstract: The invention relates to a method and an apparatus for injecting a material into soil. A material (3) which expands as a consequence of a chemical reaction is injected into the soil (2) through an injection bar (5). During injection, a quantity related to a feed volume flow of the injectable material (3) is monitored. When the quantity indicates that the feed volume flow has dropped below a determined limit value, a reaction regarding a procedure related to the injection follows.
    Type: Application
    Filed: February 7, 2011
    Publication date: February 28, 2013
    Applicant: URETEK WORLDWIDE OY
    Inventors: Sami Häkkinen, Tuomas Lievonen
  • Publication number: 20130017020
    Abstract: A cutting/mixing tool for thin diaphragm walls is mounted at the end of at least one drilling rod (47) moved by a slidable assembly (42, 62) along a tower (41), carried by an operating drilling machine (40). The tool (45) has a body (10), which bears in its central part two digging/mixing wheels (20a, 20b) provided on the periphery with cutters (82) and set alongside one another at a minimum distance (d) and coaxial about an axis (x) substantially perpendicular to the direction of digging (z). The wheels (20a, 20b) project from slits (81) of the body (10), which contains at least partially means (1-4, 50-52) for transmission of motion to the wheels, the devices being positioned externally with respect to the wheels.
    Type: Application
    Filed: November 15, 2010
    Publication date: January 17, 2013
    Applicant: Soilmec S.p.A.
    Inventors: Alessandro Ditillo, Marco Casadel, Ezio Biserna
  • Publication number: 20130011206
    Abstract: There is described a method of consolidating foundation soils and/or building sites in general, which comprises injections of expanding chemical products which are projected and carried out by means of monitoring the effects which are progressively measured in the soil in the course of treatment by means of sequential tomographies of the electrical resistivity. Those consolidating injections will be carried out until the percentage variation of the electrical resistivity ??(%), measured in quasi-real time in the soil being treated and always with respect to the initial condition before the injection will not constitute sequential gradients (Nth) which differ from the preceding one (N?1) for variations contained in the range ±5%.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 10, 2013
    Applicant: GEOSEC s.r.l.
    Inventor: Marco OCCHI
  • Publication number: 20130005569
    Abstract: A material for assisting in at least one of germination, protection, hydration, and thriving of seeds and the plants originating therefrom treats a seed with a tackifier or binder, such as corn syrup or the like, which secures a layer of hydrating polymer particles thereto. Nutrients, protectants, and the like may be absorbed in the polymer before or after coating of a seed thereby. Weighting materials, extenders, flowing agents, and the like may assist in the functioning or handling of the coated seeds.
    Type: Application
    Filed: August 30, 2012
    Publication date: January 3, 2013
    Inventors: Calder Hendrickson, Todd Naff