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公开(公告)号：US11530137B2
公开(公告)日：2022-12-20
申请号：US16650954
申请日：2018-10-01
IPC分类号： C01G49/00 , C02F1/72 , C02F1/76 , C02F101/10
摘要： 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.
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公开(公告)号：US20210188669A1
公开(公告)日：2021-06-24
申请号：US17267244
申请日：2019-08-20
摘要： 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.
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公开(公告)号：US11559782B2
公开(公告)日：2023-01-24
申请号：US16650949
申请日：2018-10-01
发明人： Donald A. Luke , Timothy M. Luke
摘要： 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.
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公开(公告)号：US20220315457A1
公开(公告)日：2022-10-06
申请号：US17838361
申请日：2022-06-13
发明人： Carlos Borras , Donald A. Luke
摘要： 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.
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公开(公告)号：US20220073383A1
公开(公告)日：2022-03-10
申请号：US17530907
申请日：2021-11-19
发明人： Carlos Borras , Donald A. Luke
IPC分类号： C02F1/461 , C02F1/467 , C02F1/52 , C02F1/58 , C02F1/66 , C25B1/50 , C25B9/65 , C02F1/00 , C25B1/00 , C25B1/20
摘要： 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.
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公开(公告)号：US11267733B2
公开(公告)日：2022-03-08
申请号：US16650945
申请日：2018-10-01
发明人： Donald A. Luke , Ruben D. Durand-Diaz , Brent Canham , David Velazquez Torres , Timothy M. Luke
IPC分类号： C02F1/76 , C01G49/02 , C02F1/28 , C02F1/66 , C02F101/10
摘要： 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.
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公开(公告)号：US11225420B2
公开(公告)日：2022-01-18
申请号：US17249343
申请日：2021-02-26
发明人： Carlos Borras , Donald A. Luke
IPC分类号： C02F1/461 , C02F1/467 , C02F1/52 , C02F1/58 , C02F1/66 , C25B1/50 , C25B9/65 , C02F1/00 , C25B1/00 , C25B1/20 , C02F101/10 , C02F101/16 , C02F101/20
摘要： 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.
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公开(公告)号：US11220443B2
公开(公告)日：2022-01-11
申请号：US17249345
申请日：2021-02-26
发明人： Carlos Borras , Donald A. Luke
IPC分类号： C02F1/461 , C02F1/467 , C02F1/52 , C02F1/58 , C02F1/66 , C25B1/50 , C25B9/65 , C02F1/00 , C25B1/00 , C25B1/20 , C02F101/10 , C02F101/16 , C02F101/20
摘要： 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.
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公开(公告)号：US20200290012A1
公开(公告)日：2020-09-17
申请号：US16650949
申请日：2018-10-01
发明人： Donald A. Luke , Timothy M. Luke
摘要： 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.
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公开(公告)号：US20210340044A1
公开(公告)日：2021-11-04
申请号：US17267254
申请日：2019-08-21
摘要： 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.
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