Of Iron Or Manganese Material Patents (Class 210/722)
  • Patent number: 11319232
    Abstract: Disclosed is a method for preparing a solid material including manganese, the method including the following steps: a. bringing into contact an aqueous effluent including manganese, for example at least 5 mg/L, typically at least 5 to 50 mg/L, and preferably 7 to 25 mg/L of manganese, with an oxidizing agent, manganese, preferably at a temperature between 10° C. and 50° C., and obtaining an oxidized aqueous solution; b. adding a base to the oxidized aqueous solution obtained at the end of step a) until a pH of between 8 and 12, preferably greater than 9, and preferably from 9 to 10.5, and obtaining a solution including a precipitate; c. filtration of the solution obtained at the end of step b); and d. obtaining a solid material including manganese, and especially manganese (IV) and/or Mn (III).
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: May 3, 2022
    Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventor: Claude Grison
  • Patent number: 10919788
    Abstract: Embodiments of this invention provide an integrated system for clean energy generation and storage and RO desalination. The integrated system includes a first subsystem that stores hydraulic energy. The integrated system further includes a second subsystem that desalinates water. The integration system also includes a penstock that facilitates flow of the water between the first subsystem and the second subsystem. The integrated subsystem may also incorporate solar and/or wind power generation plants as a power source for the integrated system.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: February 16, 2021
    Assignee: Oceanus Power & Water, LLC
    Inventors: Neal Aronson, Sandra Walker, Jose Alberto Garcia Guerrero, Joan Leal Jeldrez, Mark Allen
  • Patent number: 10047974
    Abstract: An automatically flushing water heater maintenance system may be provided, the system including a water heater and a water heater controller. The water heater may include an inlet, an outlet, and a flush outlet having a first control valve in flow communication therewith. The first control valve may be configured to control a flow of water and sediment through the flush outlet out of the water heater. The water heater controller may be configured to communicate with the first control valve by transmitting a first control signal to the first control valve, the first control signal configured to cause the first control valve to open or close as part of an automatic flushing process. As a result of the flushing, the useful life of the water heater may be extended, and/or water heater leakage alleviated. Insurance discounts may be provided based upon using the automatic water heater flushing functionality.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: August 14, 2018
    Assignee: STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANY
    Inventors: Jeffrey A. Riblet, Melinda T. Magerkurth
  • Patent number: 9580312
    Abstract: The invention relates to a continuous method for producing acetylenes and syngas by partially oxidizing hydrocarbons with oxygen. A first feed stream (1) containing one or more hydrocarbons and a second feed stream (2) containing oxygen are —mixed in a ratio of the mass flows of the second feed stream (2) to the first feed stream (1) corresponding to an oxygen number of less than or equal to 0.31, said streams being heated separately from each other, —and fed to a combustion chamber (FR) via a burner block (BR), the partial oxidation of the hydrocarbons being carried out in said combustion chamber, —thereby obtaining a first cracked gas stream Ig. The invention is characterized in that —the first cracked gas stream Ig is precooled to a temperature ranging from 100 to 1000° C.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: February 28, 2017
    Assignee: BASF SE
    Inventors: Maximilian Vicari, Christian Weichert, Dirk Grossschmidt, Michael Russ, Kai Rainer Ehrhardt, Horst Neuhauser, Michael L. Hayes
  • Patent number: 9181115
    Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: November 10, 2015
    Assignee: PENTAIR RESIDENTIAL FILTRATION, LLC
    Inventors: Andrew Tischendorf, Michael P. Lindfors, Kyle Paull
  • Patent number: 9056789
    Abstract: The present invention provides a method of producing a granular product, the method comprising providing waste stone wool product of which at least 90% is in coherent form having minimum dimension at least 50 mm and which has a content of at least 10% water, by weight of the waste stone wool product; producing a base material from the stone wool by reducing the coherent stone wool to particulate form such that at least 80% by weight of the base material is in the form of particles having size not more than 40 mm, and has water content not more than 50 wt % based on the particulate base material; forming the particulate base material into granules, wherein at least 80% by weight of the granules have size not more than 40 mm, and subjecting the granules to sintering at a temperature in the range 900 to 1050° C. to form a granular product wherein at least 80% by weight of the granular product is in the form of granules having size not more than 40 mm, and during the operation of the method no binder is added.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: June 16, 2015
    Assignee: ROCKWELL INTERNATIONAL A/S
    Inventor: Jean Marie Wilhelmus Cuypers
  • Patent number: 8894865
    Abstract: This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: November 25, 2014
    Assignee: Berkshire Hathaway Energy Company
    Inventors: John L. Featherstone, George Furmanski
  • Patent number: 8889010
    Abstract: A method for treating low barium frac water includes contacting a frac water stream with a radium selective complexing resin to produce a low radium stream, passing the low radium stream through a thermal brine concentrator to produce a concentrated brine; and passing the concentrated brine through a thermal crystallizer to yield road salt.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: November 18, 2014
    Assignee: General Electric Company
    Inventors: James Manio Silva, Hope Matis, William Leonard Kostedt, IV
  • Patent number: 8851293
    Abstract: A mined ore processing apparatus to process mined ores, such as oil sands ore, into granular material is disclosed. An ore processor bed receives the ore to be processed. The ore processor bed has a frame supporting several rotating elements each separately driven to provide independent rotation rate and direction from the other. The ore processing bed is operable as a sizing device to decimate mined ore supply into granular material and separating it from rocks and other large lump mineral materials found in situ. The ore processing bed may be oriented to provide an upward inclination, which, when combined with alternating rotating element rotation directions, provides a crushing action to the ore material to crush larger rock. Alternately, a rock crusher is also provided to disintegrate oversized materials.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: October 7, 2014
    Assignee: Suncor Energy, Inc.
    Inventors: Brad Bjornson, Doug Cox, Paul MacDougall, Garth Booker
  • Patent number: 8790516
    Abstract: The invention relates to a method for removing arsenic as scorodite from solutions that contain iron and arsenic. In accordance with the method, arsenic is first precipitated as ferric arsenate and subsequently processed hydrothermally into crystalline scorodite.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: July 29, 2014
    Assignee: Outotec Oyj
    Inventors: Mikko Ruonala, Jaakko Leppinen, Ville Miettinen
  • Publication number: 20140144845
    Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 29, 2014
    Applicant: Pentair Residential Filtration, LLC
    Inventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
  • Patent number: 8728325
    Abstract: Advanced oxidation process namely ozonation and Fenton's (hydrogen peroxide/Fe:2+) were utilized to degrade kinetic hydrate inhibitor (KHI). The oxidized solution after scavenging oxygen can be successfully disposed to the injection well. This facilitates use of KHI more frequently and in higher concentrations for future projects oil & gas operations. It also offers an alternative that competes efficiently with thermodynamic hydrate inhibitor (THI) or complements THI.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 20, 2014
    Assignee: ConocoPhillips Company
    Inventors: Altaf Hussain, Isik Riza Turkmen, Joel Minier Matar, Samir Gharfeh, Samer Adham
  • Publication number: 20140054233
    Abstract: This invention relates to a method for selective removal of silica and silicon containing compounds from solutions that include silica and silicon containing compounds, including geothermal brines.
    Type: Application
    Filed: October 24, 2013
    Publication date: February 27, 2014
    Applicant: Simbol Inc.
    Inventor: Stephen Harrison
  • Patent number: 8623217
    Abstract: Embodiments of the invention provide a method and system for providing a regeneration stage in a water treatment system. The method can include entering a first air bleed state to allow pressurized, deoxygenated air to exit the water treatment system, entering a second air bleed state to equalize a first air pressure of remaining deoxygenated air inside the water treatment system with a second air pressure outside the water treatment system, entering a backwash state to expel remaining deoxygenated air and particulates from inside the water treatment system, and entering an air draw state to allow oxygenated air to enter the water treatment system.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: January 7, 2014
    Assignee: Pentair Residential Filtration, LLC
    Inventors: Andrew Tischendorf, Michael M. Lindfors, Kyle Paull
  • Publication number: 20130319951
    Abstract: Sulfate anions and divalent metal ions in water are removed by treating sulfate-containing water, at a pH of 11-12.5, with aluminum chloride and calcium chloride, optionally together with lime, to form solid ettringite and similar crystalline species. Sulfate is removed as part of the ettringite or ettringite-like materials, but calcium content can be reduced at the same time even though calcium chloride is used as an additive to the treated water. Lime may be used also as a supplemental source of calcium and to help raise the pH. Iron may also be removed by oxidation in a variation of the process. In well treatment, divalent metal ions in flowback fluids can reduce the amount of calcium otherwise necessary to form the solid materials, thus further facilitating recycling of the fluid.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Inventors: Kevin Smith, Jeffrey Snider, Jimmy Poindexter
  • Patent number: 8597521
    Abstract: This invention relates to a method for selective removal of silica and silicon containing compounds from solutions that include silica and silicon containing compounds, including geothermal brines.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 3, 2013
    Assignee: Simbol Inc.
    Inventor: Stephen Harrison
  • Publication number: 20130284678
    Abstract: An apparatus and methods for measuring the concentration of an additive are disclosed. The apparatus comprises a treatment stream (1) and a dosing stream (2). An additive is added to the dosing stream using a metering device (3). In some embodiments, the dosing stream is mixed after adding the additive using a first mixing device (4). Downstream from the metering device and the mixing device, the concentration of the additive in the dosing stream is measured using a monitor flow cell (5). In some embodiments, the dosing stream and treatment stream are combined (6) and mixed using a second mixing device (7). The concentration of the additive in the treatment stream can be calculated as a function of the volumetric flow rate ratio of the dosing stream to the treatment stream and the measured concentration of the additive in the dosing stream.
    Type: Application
    Filed: December 14, 2011
    Publication date: October 31, 2013
    Applicant: FERRATE TREATMENT TECHNOLOGIES, LLC
    Inventors: Luke J. Daly, Craig S. Alig
  • Publication number: 20130213896
    Abstract: Disclosed are methods for treating and coating a ferrous metal substrate, such as cold rolled steel, hot rolled steel, and electrogalvanized steel. These methods include contacting the ferrous metal substrate with an aqueous pretreatment composition comprising: (a) a Group IIIB and/or IVB metal compound; (b) phosphate ions; and (c) water. Also disclosed are off-shift methods of removing iron from the pretreatment bath.
    Type: Application
    Filed: March 6, 2013
    Publication date: August 22, 2013
    Applicant: PPG Industries Ohio, Inc.
    Inventor: PPG Industries Ohio, Inc.
  • Patent number: 8512571
    Abstract: The present invention is a method and system for treating iron-contaminated water (e.g., mine drainage) using an innovative treatment approach identified herein as the Activated Iron Solids (AIS) Process. The AIS process is capable of oxidizing and removing iron as iron oxides from iron-contaminated waters (such as, mining-related discharge, groundwater, surface water and industrial waste streams) producing a clean effluent. The AIS process is performed in a single or multiple tank system in which high concentrations of AIS are suspended through mechanical mixing to maintain a catalytic surface chemistry environment that increases iron removal thousands times faster than would naturally occur and hundreds times faster than existing arts (e.g., aerobic pond passive treatment). The AIS process can utilize inexpensive alkaline material (such as, pulverized limestone) where initial mine drainage alkalinity (mg/L as CaCO3) to ferrous iron (mg/L) ratio is less than approximately 1.7.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: August 20, 2013
    Inventor: Jonathan M. Dietz
  • Patent number: 8465701
    Abstract: Provided is a catalyst material comprising aggregates of nanoneedles of mainly R-type manganese dioxide and having a mesoporous structure. With this, water can be oxidatively decomposed under visible light at room temperature to produce oxygen gas, proton and electron. Also provided is a catalyst material comprising aggregates of nanoparticles of mainly hydrogenated manganese dioxide. With this, acetic acid or an inorganic substance can be synthesized from carbon dioxide gas.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: June 18, 2013
    Assignee: Kyoto University
    Inventor: Hideki Koyanaka
  • Publication number: 20130140243
    Abstract: A method of purifying raw water comprises the steps of supplying the raw water to a generally vertical, open-ended inlet cylinder (23) in a reservoir (20), exposing the water in the inlet cylinder (23) to air for accomplishing oxidizing of matter, such as iron, manganese, and hydrogen sulphide in the water and/or agitation of the water, allowing the oxidized matter to fall down by gravity to the bottom of the reservoir (20), allowing the purified water to flow upwards past the inlet cylinder (23) and through a distribution disc (24) in the reservoir (20), and removing the purified water from the upper part of the reservoir (20).
    Type: Application
    Filed: May 4, 2011
    Publication date: June 6, 2013
    Inventor: Bert Gustafsson
  • Patent number: 8430164
    Abstract: The invention relates to a method for producing steam comprising the successive steps of: providing feedwater containing carbonate and/or sulfate ions; adding a crystallizing reagent able to react with carbonate and/or sulfate ions to the feedwater, in order to produce carbonate and/or sulfate crystals; filtering the feedwater with a ceramic membrane to produce a permeate stream; supplying the permeate stream to a boiler; and generating steam in the boiler. The invention also relates to an installation adapted for implementing said method, as well as to a process for extracting hydrocarbons from a subterranean formation using the abovementioned method for producing steam.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: April 30, 2013
    Assignee: Total S.A.
    Inventor: Annie Audibert-Hayet
  • Publication number: 20130068697
    Abstract: This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
    Type: Application
    Filed: November 14, 2012
    Publication date: March 21, 2013
    Applicant: Midamerican Energy Holdings Company
    Inventor: Midamerican Energy Holdings Company
  • Patent number: 8361327
    Abstract: The present invention relates to an agricultural water-recycling system comprising an iron (Fe)-ionizing module and a method of recycling agricultural water using the same, and more particularly to an agricultural water-recycling system comprising an iron (Fe)-ionizing module and a method of recycling agricultural water using the same, in which phosphorus (P) contained in effluent from a sewage treatment plant is removed by using the iron (Fe)-ionizing module comprising an iron (Fe)-ionizing electrode consisting of an iron plate serving as a cathode and a titanium plate serving as an anode and an electrode-washing device. According to the present invention, an effluent treatment process of a sewage treatment plant and an electrode washing process needed for iron ionization can be simultaneously performed, the iron ionization is controlled depending on the concentration of phosphorus contained in the effluent, thereby improving effluent treatment efficiency.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 29, 2013
    Assignees: Korea Rural Community Corporation, Blue Environment N Tech Co., Ltd., Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Kwang Ya Lee, Hae Do Kim, Jong Hwa Son, Min Hong, Kyung Sook Choi
  • Publication number: 20130001173
    Abstract: The wastewater treatment method is to obtain demanganized wastewater, through a step wherein an acid or an alkali is added to sulfuric acid acidified wastewater to adjust pH to not less than 4.0 and not more than 6.0, whereby the sulfuric acid acidified wastewater is separated into a dealuminized solution and an aluminum precipitate; a step wherein a slurrying solution is added to the aluminum precipitate to form a slurry, then an alkali is added to adjust pH to not less than 9.0 and not more than 9.5, whereby an pH-adjusted aluminum precipitate slurry is formed; a step wherein an alkali is added to the dealuminized solution to adjust pH to not less than 8.0 and not more than 9.0; and others.
    Type: Application
    Filed: January 6, 2011
    Publication date: January 3, 2013
    Applicant: Sumitomo Mental Mining Co., Ltd.
    Inventors: Hiroshi Kobayashi, Tatsuya Higaki, Hirofumi Shoji, Norihisa Toki, Keiji Kudo, Hiroyuki Mitsui, Osamu Nakai
  • Patent number: 8313653
    Abstract: This invention relates generally to processes for extracting iron and/or calcium from geothermal brines.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: November 20, 2012
    Assignee: Midamerican Energy Holdings Company
    Inventors: John L. Featherstone, George Furmanski
  • Patent number: 8282835
    Abstract: The invention provides a method of efficiently removing selenium from water. The method involves: adding an oxidant to the liquid, adjusting the liquid's pH to below 7.5, adding ferric salt in an amount such that less than a quarter of selenium in the liquid precipitates and adding a poly dithiocarbamate material to the liquid in an amount such that the amount of poly dithiocarbamate material (in ppm) is greater than the amount of ferric salt (in ppm). This method removes far more selenium than previous methods, and does it using a smaller amount of expensive chemicals. Moreover this method makes it far more likely to achieve cost effective compliance with the ever-increasing environmental standards for selenium in water.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: October 9, 2012
    Assignee: Nalco Company
    Inventors: Daniel E. Schwarz, Jitendra T. Shah
  • Patent number: 8211314
    Abstract: The present disclosure describes using the naturally present dissolved chemicals as precipitants from local water sources to form an adsorbent and a process of purifying the water using natural resources. The adsorbent may be processed at the right pH and temperature to purify and remove heavy metals from waste water. Once the heavy metals are removed the concentration of the heavy metals are estimated in the reusable water. The local authority acceptable level heavy metal containing reusable water is reclaimed for non-human consumption. This disclosure enables to conserve water and provide a cheap and an effective method to decontaminate industrial waste water.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: July 3, 2012
    Assignee: King Abdulaziz City for Science and Technology “KACST”
    Inventor: Saad A Al-Jlil
  • Publication number: 20120118831
    Abstract: The present invention provides reagents that may be useful for treating wastes such as impure aqueous materials including wastewater to remove a significant proportion of the heavy metals that may be contained therein. The reagents include a calcium aluminosilicate (CAS) source and may include one or more of the following elements as an oxide: calcium oxide, aluminum oxide, silicon oxide, iron oxide, magnesium oxide, sodium oxide, potassium oxide, and sulfate. Further, the reagent comprises lime either as CaO or Ca(OH)2. In addition, the invention provides methods for treating wastes such as impure aqueous materials to remove a significant proportion of the heavy metals contained therein.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 17, 2012
    Inventors: Raymond T. Hemmings, Bruce J. Cornelius
  • Patent number: 8147702
    Abstract: The present disclosure describes using the naturally present dissolved chemicals as precipitants from local water sources to form an adsorbent. The adsorbent may be collected and used at the right pH and temperature to purify and remove heavy metals from waste water. Once the heavy metals are removed the concentration of the heavy metals are estimated in the reusable water. The local authority acceptable level heavy metal containing reusable water is reclaimed for non-human consumption. This disclosure enables to conserve water and provide a cheap and an effective method to decontaminate industrial waste water.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: April 3, 2012
    Assignee: King Abdulaziz City for Science and Technology (KACST)
    Inventor: Saad A Al-Jlil
  • Publication number: 20120031850
    Abstract: Sulfate anions and divalent metal ions, such as magnesium, strontium and barium, in water are removed by treating the water with polyaluminum chloride, usually together with lime, to form ettringite and similar crystalline species which are readily removable by settling, filtration and the like. Iron is also removed by oxidation in a variation of the process. The process is particularly useful for treating aqueous solutions used in well treatment, where flowback fluids can provide some of the divalent metal ions necessary to form the ettringite-like materials, thus reducing the amount of lime otherwise necessary and further facilitating recycling of the fluid.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 9, 2012
    Inventors: Kevin Smith, Jeffrey Snider, Jimmy Poindexter
  • Patent number: 8034158
    Abstract: There are provided a method of manufacturing an Fe/Ni-containing material having a low content of sulfur (S) from an Fe/Ni/SO4-containing liquid waste, a ferronickel mass using the Fe/Ni-containing material, and a method of manufacturing the ferronickel mass. The method of manufacturing an Fe/Ni-containing material from an Fe/Ni-containing liquid waste includes: removing SO4 from an Fe/Ni/SO4-containing liquid waste by adding an SO4 neutralizing agent to the liquid waste so that pH of the liquid waste can be maintained to a pH level of 0.5 to 2.5; precipitating Fe and Ni in the form of hydroxide [(Ni,Fe)(OH)] by adding NaOH to the SO4-free solution; washing the precipitate with water; and manufacturing an Ni/Fe-containing material by filtering and drying the washed Ni/Fe-containing sludge.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: October 11, 2011
    Assignee: Research Institute of Industrial Science & Technology
    Inventor: Jae Young Lee
  • Publication number: 20110220571
    Abstract: The present disclosure describes using the naturally present dissolved chemicals as precipitants from local water sources to form an adsorbent. The adsorbent may be collected and used at the right pH and temperature to purify and remove heavy metals from waste water. Once the heavy metals are removed the concentration of the heavy metals are estimated in the reusable water. The local authority acceptable level heavy metal containing reusable water is reclaimed for non-human consumption. This disclosure enables to conserve water and provide a cheap and an effective method to decontaminate industrial waste water.
    Type: Application
    Filed: April 21, 2011
    Publication date: September 15, 2011
    Applicant: King Abdulaziz City for Organization Name Science and Technology "KACST"
    Inventor: Saad A. Al-Jlil
  • Publication number: 20110198297
    Abstract: A water filtration system (2) and method includes a conduit network (4) configured to transport a treatment stream of water. An air compressor (10) is in fluid communication with the conduit network (4) configured to inject compressed air into the treatment stream (2) oxidizing a first portion of the dissolved iron. At least one closed pressure contact vessel (6) is in fluid communication with the conduit network (4). At least one filter tank (14) is in fluid communication with the at least one closed pressure contact vessel (6) having a first filtering media (16) adapted to adjust the pH of the treatment stream for oxidation of a second portion of the dissolved iron. At least one polishing filter tank (18) is in fluid communication with the at least one filter tank (14) having a second filtering media (22) adapted to catalyze the oxidation of any residual dissolved iron.
    Type: Application
    Filed: September 29, 2009
    Publication date: August 18, 2011
    Inventor: Michael Ubri
  • Publication number: 20110163042
    Abstract: A removal method of manganese in which manganese is removed by precipitating manganese selectively from sulfuric acid waste water containing aluminum, magnesium and manganese with inhibiting the precipitation of magnesium. The removal method of manganese from waste water in which manganese is removed by precipitating manganese selectively from the sulfuric acid waste water containing aluminum, magnesium and manganese with inhibiting the precipitation of magnesium, characterized in that said waste water is subjected to the following steps (1) and (2). (1) First, aluminum in said waste water is removed. (2) Subsequently, neutralizing agent is added into the wastewater after removing aluminum, then pH of the waste water is adjusted at 8.0 to 9.0, and oxygen gas is blown.
    Type: Application
    Filed: February 23, 2010
    Publication date: July 7, 2011
    Applicant: SUMITOMO METAL MINING CO., LTD.
    Inventors: Hiroshi Kobayashi, Norihisa Toki, Hirofumi Shoji, Keiji Kudo, Tatsuya Higaki
  • Patent number: 7678281
    Abstract: A method of reclaiming a well completion brine solution containing metal impurities by introducing to the brine solution an organic chelant of the formula: and may be either a neutral compound, a corresponding salt, or a corresponding quaternary salt, wherein: D is F-A (Y3)u(Y4)v; R is independently selected from Cp or CpC(O); Cp is a C1-C36, preferably a C8-C36, hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; each A is independently selected from —N and —P; Y1 is independently selected from J, —[(F)-A(J)]w Y6 and R; J, R1, Y2, Y3, Y4, Y5 and Y6 are independently selected from the group consisting of —H, R, —(F)nCO2Z and —(CH2)nPO(OZ)2; each F is independently selected from a C1-C12 hydrocarbyl group, optionally substituted with one or more substituents selected from the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; Z is —H, a balanced organic counte
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: March 16, 2010
    Assignee: BJ Services Company
    Inventors: Paul H. Javora, Qi Qu
  • Patent number: 7674384
    Abstract: A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(R21)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N?C(R2)R3, EO—N?C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(R21)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1-C30 alkyl or aralkyl group or a derivative thereof and R20 and R21 are independently selected from —OH, —OR1 and R1.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: March 9, 2010
    Assignee: BJ Services Company
    Inventors: Paul H. Javora, Qi Qu
  • Publication number: 20100051555
    Abstract: An arsenic removal process where arsenic 3 is oxidized to arsenic 5 where the water is passed upflow through a bed of manganese dioxide (MnO2) at a sufficient flow rate such that the MnO2 bed is fluidized whereby precipitating or precipitated iron and/or manganese and/or any other suspended solids will pass through the bed. The suspended matter is then removed by passing the water through disposable or reusable filters. The oxidized arsenic is then removed by passing the water through applicable arsenic removal media.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Inventor: Frank S. Craft, SR.
  • Patent number: 7641801
    Abstract: A method and system of removing or decreasing waste liquor manganese concentration to less than about 1 mg/L total manganese without the precipitation of significant amounts of magnesium. The method and system include steps for treating the waste liquor using three separate circuits in which in the first circuit, manganese is reduced, for example, from about 2 g/L to <500 mg/L using pH adjustment with a suitable neutralizing agent; and in the second circuit, the final target manganese level is achieved by oxidative precipitation using a suitable oxidizing agent. Part of the precipitated manganese product, e.g., MnO2, is recycled to the oxidative precipitation circuit as seed and the balance proceeds to a third circuit wherein the precipitated manganese product is re-dissolved, and then recycled to the first neutralization circuit. In the first neutralization circuit and the second oxidative precipitation circuit, the process conditions are selected to minimize the precipitation of magnesium, e.g., Mg(OH)2.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: January 5, 2010
    Assignee: Vale Inco Limited
    Inventors: Mohamed Buarzaiga, Eric Devuyst, Julian Edwards, Joe Paventi
  • Publication number: 20090255678
    Abstract: Systems and methods for treating aqueous fluids and their associated methods of use are disclosed. In one embodiment, a method comprises providing an untreated aqueous fluid with a first concentration of a contaminant. The method further comprises chemically treating the aqueous fluid to precipitate at least a portion of the contaminant. The method further comprises mechanically treating the aqueous fluid to remove at least some of the precipitated contaminant from the aqueous fluid, and to produce a treated water with a second concentration of the contaminant, wherein mechanically treating the aqueous fluid comprises flowing the aqueous fluid through a centrifuge. The method further comprises placing the treated water in a first well bore of the well treatment operation.
    Type: Application
    Filed: June 12, 2009
    Publication date: October 15, 2009
    Inventors: Randy Rosine, Johanna Haggstrom, Michael McCabe
  • Publication number: 20090242489
    Abstract: A process and apparatus for removing elements is described herein.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Applicant: Global Materials Technologies, Inc.
    Inventors: Terrence P. Kane, Raymond Joseph Lovett
  • Publication number: 20090184056
    Abstract: Oilfield completion, drilling, produced, flowback, and workover fluids containing iron are treated to remove the iron by passing them through a cavitation device together with an oxidizing agent and with the addition of lime. The cavitation device intimately mixes the oxidizing agent with the fluid while increasing the temperature of the fluid, thus promoting the oxidation reaction. Lime contributes to an increase in pH while promoting the formation of floc. Ferric hydrate and other solids or colloidal iron are removed in a filter capable of removing particles as small as 0.5 micron. The system may be enhanced by the addition of a bed of activated carbon capable of catalyzing the oxidation reaction.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 23, 2009
    Inventors: Kevin W. Smith, Harry D. Smith, JR.
  • Publication number: 20090084733
    Abstract: The present invention is a method and system for treating iron-contaminated water (e.g., mine drainage) using an innovative treatment approach identified herein as the Activated Iron Solids (AIS) Process. The AIS process is capable of oxidizing and removing iron as iron oxides from iron-contaminated waters (such as, mining-related discharge, groundwater, surface water and industrial waste streams) producing a clean effluent. The AIS process is performed in a single or multiple tank system in which high concentrations of AIS are suspended through mechanical mixing to maintain a catalytic surface chemistry environment that increases iron removal thousands times faster than would naturally occur and hundreds times faster than existing arts (e.g., aerobic pond passive treatment). The AIS process can utilize inexpensive alkaline material (such as, pulverized limestone) where initial mine drainage alkalinity (mg/L as CaCO3) to ferrous iron (mg/L) ratio is less than approximately 1.7.
    Type: Application
    Filed: September 12, 2008
    Publication date: April 2, 2009
    Inventor: Jonathan M. Dietz
  • Publication number: 20090020482
    Abstract: A method and a device for purifying water from contaminant trace species, especially arsenic, by co-precipitating trace species during oxidation and precipitation of iron compounds with subsequent separation. The co-precipitation is improved by contacting the water with an iron-containing material prior to oxidation to increase the iron content of the water. Arsenic and other trace species harmful to health may be removed from water effectively and in a simple manner, thus being able to comply with the more restrictive limits of arsenic in drinking water.
    Type: Application
    Filed: May 11, 2006
    Publication date: January 22, 2009
    Applicant: MICRODROP ACQUA ApS
    Inventor: Finn Lebech
  • Publication number: 20080314839
    Abstract: Iron composite particles for purifying soil or ground water, comprise ?-Fe and magnetite, and having a ratio of a diffraction intensity D110 of (110) plane of ?-Fe to a sum of a diffraction intensity D311 of (311) plane of magnetite and the diffraction intensity D110 (D110/(D311+D110)) of 0.30 to as measured from X-ray diffraction spectrum of the iron composite particles, an Al content of 0.10 to 1.50% by weight and an S content of 3500 to 7000 ppm; a process for producing the iron composite particles; a purifying agent containing the iron composite particles; a process for producing the purifying agent; and a method for purifying soil or ground water.
    Type: Application
    Filed: August 13, 2008
    Publication date: December 25, 2008
    Applicant: TODA KOGYO CORPORATION
    Inventors: Masayuki Uegami, Junichi Kawano, Koji Kakuya, Tomoko Okita, Kenji Okinaka
  • Patent number: 7459086
    Abstract: A method for treating water to produce potable water is described herein. The inventive method enables the efficient removal of iron, manganese, and arsenic without the addition of powerful oxidants and without requiring a complex procedure for preparing the filtering material. The described method treats the water by passing the water through at least one bed of filter material, where the filter material comprises an association of manganese dioxide grains and at least one iron-based divided material in the hydroxide, oxide, or metallic state. The association may comprise a mixture of the iron-based divided material and the manganese dioxide grains. Alternatively, the association may comprise a superposition of layers of the iron-based divided material and the manganese dioxide grains.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: December 2, 2008
    Assignee: OTV SA S.A.
    Inventor: Abdelkader Gaid
  • Publication number: 20080185345
    Abstract: There is a method of capturing, removing or collecting the particulate matter from a fluid containing a toxic liquid reaction and particulate matter produced from the reaction. The method includes partly or completely disposing a screen into the toxic fluid. Mixing the toxic fluid allowing the particulate matter to contact the screen. Moving the screen to capture the particulate matter on the screen. Removing the particulate matter from the screen by washing or scraping. There is also a cleaning apparatus to capture, remove or collect particulate matter from a toxic fluid. A cleaning apparatus contains at least a screen and a structure securing the screen. The cleaning apparatus can optionally include a scraping or washing means, a drive means, a flow inducer and a housing structure.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 7, 2008
    Inventor: Melvin C. Stanley
  • Publication number: 20080179256
    Abstract: Disclosed are systems and methods for removing oxidizable metals from a liquid without the use of chemicals. This aeration technology maximizes the surface area-to-volume ratio of oxygen in the gas used. A system may comprise a dissolved oxygen addition device configured to receive the liquid and comprising a substrate with pores. A compressed gas source is connected to the device and configured to inject compressed gas containing oxygen through the substrate and into the liquid. Sub-micron sized bubbles are created on the substrate when the gas passes through the pores and expands in the liquid. The bubbles are removed from the substrate by passing liquid media while they have buoyancy insufficient to overcome a surface tension between the substrate and the bubbles. The bubbles then diffuse into the liquid to oxidize soluble oxidizable metals in the liquid media to create oxidized insoluble metal particles.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 31, 2008
    Applicant: PURIFICS ENVIRONMENTAL TECHNOLOGIES, INC.
    Inventors: Brian E. Butters, Anthony L. Powell
  • Patent number: 7378022
    Abstract: A biological system for removing selenium from waste water comprises a first immobilized cell bioreactor (ICB) and a selenide removal module. The first ICB comprises a chamber having a substrate housed therein and situated to contact the waste water flowing therethrough during use. Anaerobic microorganisms are supported on the substrate, and comprise selenium respiring bacteria capable of reducing selenates and selenites to insoluble elemental selenium and/or sulfate reducing bacteria capable of reducing selenates and selenites to insoluble elemental selenium or to soluble selenides. The selenide removal module includes metallic or oxidized iron compounds capable of chemically reacting with selenide or sulfide compounds in the waste water to form iron selenide or iron sulfide precipitates.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: May 27, 2008
    Assignee: Honeywell International Inc.
    Inventors: Francis S. Lupton, William G. Sheridan
  • Publication number: 20080116142
    Abstract: The invention discloses a process to implement and maintain water bodies larger than 15,000 m3 for recreational use, such as lakes or artificial lagoons, with excellent color, transparency and cleanness properties at low cost, which comprises the following steps: a.—providing a structure able to contain a large water body larger than 15,000 m3; b.—feeding the structure of step (a) with inlet water having iron and manganese levels lower than 1.5 ppm and turbidity lower than 5 NTU; c.—measuring water pH, ideally it should be within a range lower than 7.8; d.—adding an oxidizing agent to the water contained in the structure of step (a), with which a 600 mV minimal ORP is controlled in water for a minimal period of 4 hours and in maximal cycles of 48 hours; e.—adding a flocculating agent in concentrations within 0.
    Type: Application
    Filed: June 25, 2007
    Publication date: May 22, 2008
    Inventor: Fernando Benjamin Fischmann Torres