Patents by Inventor Donald A. Luke
Donald A. Luke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11795084Abstract: Various embodiments relate to denitrification of water using bacteria. A method of denitrification of water includes deoxygenated water including a water-soluble form of nitrogen. The method includes exposing the deoxygenated water to denitrifying bacteria to convert the water-soluble form of nitrogen in the water to nitrogen gas that is removed and to form a denitrified water. The method also includes reoxygenating the denitrified water. Denitrifying bacterial substrates and methods of making the same are also provided.Type: GrantFiled: August 21, 2019Date of Patent: October 24, 2023Assignee: NuQuatic, LLCInventors: Donald A. Luke, Ryan Eugene Dickinson, Janie Michelle Hinson
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Patent number: 11559782Abstract: Various embodiments of the present invention relate to reactive media including calcium. A reactive media includes a vitrified calcium silicate comprising reactive calcium. Various embodiments of the reactive media described herein are useful for removal of anionic impurities such as phosphate from water.Type: GrantFiled: October 1, 2018Date of Patent: January 24, 2023Assignee: Phosphorus Free Water Solutions, LLCInventors: Donald A. Luke, Timothy M. Luke
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Patent number: 11530137Abstract: Various embodiments relate to an acidic ferrate composition and methods of making ferrate. A method of forming ferrate includes treating an iron source with an oxidizer in an aqueous solution having a pH of less than 7 under conditions sufficient to form ferrate.Type: GrantFiled: October 1, 2018Date of Patent: December 20, 2022Assignee: Phosphorus Free Water Solutions, LLCInventors: Donald A. Luke, Ruben D. Durand-Diaz, Brent Canham, David Velazquez Torres
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Publication number: 20220315457Abstract: A method of treating an aqueous composition includes immersing a galvanic cell in the aqueous composition to form a treated aqueous composition. The galvanic cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof. The galvanic cell includes a cathode having a different composition than the anode, the cathode including Cu, Ni, Fe, or a combination thereof.Type: ApplicationFiled: June 13, 2022Publication date: October 6, 2022Inventors: Carlos Borras, Donald A. Luke
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Patent number: 11401181Abstract: A method of treating an aqueous composition includes immersing a galvanic cell in the aqueous composition to form a treated aqueous composition. The galvanic cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof. The galvanic cell includes a cathode having a different composition than the anode, the cathode including Cu, Ni, Fe, or a combination thereof.Type: GrantFiled: June 7, 2021Date of Patent: August 2, 2022Assignee: Phosphorus Free Water Solutions, LLCInventors: Carlos Borras, Donald A. Luke
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Publication number: 20220106208Abstract: Various embodiments relate to an electrochemical cell for removal of materials from water and methods of using the same. A method of removing phosphorus from water includes immersing an electrochemical cell in water including phosphorus to form treated water including a salt that includes the phosphorus. The electrochemical cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof, a cathode including Cu, Ni, Fe, or a combination thereof. The method includes separating the salt including the phosphorus from the treated water, to form separated water having a lower phosphorus concentration than the water including phosphorus.Type: ApplicationFiled: December 17, 2021Publication date: April 7, 2022Inventors: Carlos Borras, Donald A. Luke
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Publication number: 20220081330Abstract: Various embodiments relate to an electrochemical cell for removal of materials from water and methods of using the same. A method of removing phosphorus from water includes immersing an electrochemical cell in water including phosphorus to form treated water including a salt that includes the phosphorus. The electrochemical cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof, a cathode including Cu, Ni, Fe, or a combination thereof. The method includes separating the salt including the phosphorus from the treated water, to form separated water having a lower phosphorus concentration than the water including phosphorus.Type: ApplicationFiled: November 23, 2021Publication date: March 17, 2022Inventors: Carlos Borras, Donald A. Luke
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Publication number: 20220073383Abstract: Various embodiments relate to methods and systems for removing phosphorus and/or nitrogen from water. A method of removing phosphorus and nitrogen from water includes passing starting material water including nitrogen and phosphorus through an elevated pH phosphorus removal stage. The method includes passing the water through an electrolytic nitrogen removal stage. The method includes passing the water through a galvanic phosphorus removal stage. The water produced by the method has a lower phosphorus concentration and a lower nitrogen concentration than the starting material water.Type: ApplicationFiled: November 19, 2021Publication date: March 10, 2022Inventors: Carlos Borras, Donald A. Luke
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Patent number: 11267733Abstract: A method of removing phosphorus from water includes contacting an oxidizer with water including phosphorus to form water including oxidized phosphorus. The method also includes contacting the water including the oxidized phosphorus with a reactive media to capture the oxidized phosphorus on the reactive media, in the reactive media, or a combination thereof, as a solid salt comprising the oxidized phosphorus.Type: GrantFiled: October 1, 2018Date of Patent: March 8, 2022Assignee: Phosphorus Free Water Solutions, LLCInventors: Donald A. Luke, Ruben D. Durand-Diaz, Brent Canham, David Velazquez Torres, Timothy M. Luke
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Patent number: 11225420Abstract: Various embodiments relate to an electrochemical cell for removal of materials from water and methods of using the same. A method of removing phosphorus from water includes immersing an electrochemical cell in water including phosphorus to form treated water including a salt that includes the phosphorus. The electrochemical cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof, a cathode including Cu, Ni, Fe, or a combination thereof. The method includes separating the salt including the phosphorus from the treated water, to form separated water having a lower phosphorus concentration than the water including phosphorus.Type: GrantFiled: February 26, 2021Date of Patent: January 18, 2022Assignee: Phosphorus Free Water Solutions, LLCInventors: Carlos Borras, Donald A. Luke
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Patent number: 11220443Abstract: Various embodiments relate to methods and systems for removing phosphorus and/or nitrogen from water. A method of removing phosphorus and nitrogen from water includes passing starting material water including nitrogen and phosphorus through an elevated pH phosphorus removal stage. The method includes passing the water through an electrolytic nitrogen removal stage. The method includes passing the water through a galvanic phosphorus removal stage. The water produced by the method has a lower phosphorus concentration and a lower nitrogen concentration than the starting material water.Type: GrantFiled: February 26, 2021Date of Patent: January 11, 2022Assignee: Phosphorus Free Water Solutions, LLCInventors: Carlos Borras, Donald A. Luke
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Publication number: 20210340044Abstract: Various embodiments relate to denitrification of water using bacteria. A method of denitrification of water includes deoxygenated water including a water-soluble form of nitrogen. The method includes exposing the deoxygenated water to denitrifying bacteria to convert the water-soluble form of nitrogen in the water to nitrogen gas that is removed and to form a denitrified water. The method also includes reoxygenating the denitrified water. Denitrifying bacterial substrates and methods of making the same are also provided.Type: ApplicationFiled: August 21, 2019Publication date: November 4, 2021Inventors: Donald A. Luke, Ryan Eugene Dickinson, Janie Michelle Hinson
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Publication number: 20210188666Abstract: Various embodiments relate to an electrochemical cell for removal of materials from water and methods of using the same. A method of removing phosphorus from water includes immersing an electrochemical cell in water including phosphorus to form treated water including a salt that includes the phosphorus. The electrochemical cell includes an anode including Mg, Al, Fe, Zn, or a combination thereof, a cathode including Cu, Ni, Fe, or a combination thereof. The method includes separating the salt including the phosphorus from the treated water, to form separated water having a lower phosphorus concentration than the water including phosphorus.Type: ApplicationFiled: February 26, 2021Publication date: June 24, 2021Inventors: Carlos Borras, Donald A. Luke
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Publication number: 20210188669Abstract: Various embodiments disclosed relate to removal of phosphorus from water using magnesium or calcium. A method of removing phosphorus from water including magnesium, calcium, or a combination thereof. The method includes forming a precipitate in the water including the phosphorus and the precipitation composition. The precipitate includes a salt that includes the phosphorus, and also includes magnesium, calcium, or a combination thereof. The method also includes removing the precipitate including the phosphorus from the water including the precipitate, to form water having a lower dissolved phosphorus concentration than the water including phosphorus that was combined with the precipitation composition. The method can include combining the water including phosphorus and a precipitation composition including a magnesium salt, a calcium salt, or a combination thereof.Type: ApplicationFiled: August 20, 2019Publication date: June 24, 2021Inventors: Donald A. Luke, Brent Canham, Tom Eugene Sawyer, Carlos Borras, Ruben D. Durand-Diaz
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Publication number: 20210179456Abstract: Various embodiments relate to methods and systems for removing phosphorus and/or nitrogen from water. A method of removing phosphorus and nitrogen from water includes passing starting material water including nitrogen and phosphorus through an elevated pH phosphorus removal stage. The method includes passing the water through an electrolytic nitrogen removal stage. The method includes passing the water through a galvanic phosphorus removal stage. The water produced by the method has a lower phosphorus concentration and a lower nitrogen concentration than the starting material water.Type: ApplicationFiled: February 26, 2021Publication date: June 17, 2021Inventors: Carlos Borras, Donald A. Luke
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Publication number: 20200290012Abstract: Various embodiments of the present invention relate to reactive media including calcium. A reactive media includes a vitrified calcium silicate comprising reactive calcium. Various embodiments of the reactive media described herein are useful for removal of anionic impurities such as phosphate from water.Type: ApplicationFiled: October 1, 2018Publication date: September 17, 2020Inventors: Donald A. Luke, Timothy M. Luke
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Publication number: 20200270145Abstract: Various embodiments relate to an acidic ferrate composition and methods of making ferrate. A method of forming ferrate includes treating an iron source with an oxidizer in an aqueous solution having a pH of less than 7 under conditions sufficient to form ferrate.Type: ApplicationFiled: October 1, 2018Publication date: August 27, 2020Inventors: Donald A. Luke, Ruben D. Durand-Diaz, Brent Canham, David Velazquez Torres
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Publication number: 20200247699Abstract: The present invention relates to removal of phosphorus from water. A method of removing phosphorus from water includes contacting an oxidizer with water including phosphorus to form water including oxidized phosphorus. The method also includes contacting the water including the oxidized phosphorus with a reactive media to capture the oxidized phosphorus on the reactive media, in the reactive media, or a combination thereof, as a solid salt comprising the oxidized phosphorus.Type: ApplicationFiled: October 1, 2018Publication date: August 6, 2020Inventors: Donald A. Luke, Ruben D. Durand-Diaz, Brent Canham, David Velazquez Torrez, Timothy M. Luke
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Patent number: 7491333Abstract: A process for the treatment of industrial waste water. The process includes the steps of admixing partially-treated waste water containing precipitated impurities with a flocculating agent in a flocculation basin, directing the admixed waste water to an elongated sedimentation basin, allowing flocculated solids in the waste water to settle to the bottom of the sedimentation basin, removing the settled solids from the bottom of the sedimentation basin and directing the treated water from the sedimentation basin. The process can further include the step of adjusting the pH of the waste water to precipitate impurities in the waste water prior to the addition of the flocculation agent. The elongated sedimentation basin can include a pair of sloped sides to consolidate the settled solids at the bottom of the basin. The settled solids can then be removed by suction. The basins can be formed from the excavation or impoundment of earth in an area adjacent to a waste water-generating facility.Type: GrantFiled: April 17, 2007Date of Patent: February 17, 2009Assignee: Cleanwater Technologies, LLCInventors: Donald A. Luke, Vaughn V. Astley
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Patent number: 6213416Abstract: A process for improving grinding of phosphate rock comprising providing phosphate-containing rock in a form which contains from 3 to 25 wt % water, transferring the phosphate-containing rock to a grinding apparatus during a transfer stage, and grinding the phosphate-containing rock in grinding apparatus, wherein the process comprises mixing with the phosphate-containing rock during or before the transfer stage particles of water-swellable, water-insoluble polymeric material, whereby the flowability of the rock into the grinding apparatus is improved.Type: GrantFiled: September 22, 1999Date of Patent: April 10, 2001Assignee: Ciba Specialty Chemicals Water Treatments Ltd.Inventor: Donald A. Luke