公开(公告)号：US11952297B2

公开(公告)日：2024-04-09

申请号：US18177182

申请日：2023-03-02

申请人： Dexerials Corporation

发明人： Takanori Fujita ,  Ryu Shimada ,  Masahiko Ito ,  Masato Hasegawa

IPC分类号： C02F1/52 ,  B01D21/01 ,  B01J20/22 ,  B01J20/24 ,  B01J20/30 ,  C02F1/28 ,  C02F1/56 ,  C08B37/08 ,  A61K8/73 ,  A61K31/722 ,  C02F101/10 ,  C02F101/14 ,  C02F101/20 ,  C02F101/22

CPC分类号： C02F1/5263 ,  B01D21/01 ,  B01J20/22 ,  B01J20/24 ,  B01J20/3071 ,  C02F1/286 ,  C02F1/5272 ,  C02F1/56 ,  C08B37/003 ,  A61K8/736 ,  A61K31/722 ,  C02F2101/103 ,  C02F2101/14 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/22

摘要： Provided are an extract, which is a fractionated component 1 of a water extract of a plant powder, wherein the fractionated component 1 is a fractionated component having a fractionation molecular weight of 12,000 or greater, wherein an ethanol-undissolved component of the fractionated component 1 exhibits a peak attributable to carboxylic acid in a Fourier transform infrared spectroscopy (FT-IR) measurement and exhibits a peak attributable to cellulose in a gas chromatography mass spectrometry (GC-MS) measurement, and wherein an ethanol-dissolved component of the fractionated component 1 exhibits a peak attributable to carboxylic acid in the FT-IR measurement and exhibits a peak attributable to a plant protein in the GC-MS measurement, and a water-purifying agent containing the extract.

公开(公告)号：US11919792B2

公开(公告)日：2024-03-05

申请号：US14240701

申请日：2012-09-21

申请人： OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC.

发明人： Pierre Cote ,  Ahren Britton ,  Ram Prasad Melahalli Sathyanarayana ,  Rhonda Maria Hyslop ,  Donald Robert Clark

IPC分类号： C02F9/00 ,  C01B25/32 ,  C01B33/20 ,  C02F1/52 ,  C02F1/58 ,  C02F1/60 ,  C02F1/66 ,  C02F101/10 ,  C02F101/14

CPC分类号： C02F9/00 ,  C01B25/32 ,  C01B33/20 ,  C02F1/5236 ,  C02F1/58 ,  C02F1/583 ,  C02F1/60 ,  C02F2001/5218 ,  C02F1/66 ,  C02F2101/10 ,  C02F2101/14

摘要： A method for treating phosphate-containing wastewater, such as phosphogypsum pond water. The method includes the steps of: (a) adding a first cation to the wastewater to precipitate fluorosilicate from the wastewater; (b) adding a second cation to the wastewater to precipitate fluoride from the wastewater; (c) raising the pH of the wastewater to precipitate the second cation from the wastewater; (d) removing residual silica from the wastewater; and (e) precipitating phosphate from the wastewater. The precipitated fluorosilicate may be sodium fluorosilicate. The precipitated phosphate may be struvite.

公开(公告)号：US11478752B2

公开(公告)日：2022-10-25

申请号：US16844787

申请日：2020-04-09

申请人： Magna Imperio Systems Corp.

发明人： Xin Li ,  Ethan Demeter

IPC分类号： B01D61/46 ,  B01D61/58 ,  C02F1/469 ,  C02F101/10 ,  C02F101/12 ,  C02F101/14 ,  C02F101/20

摘要： Provided are electrodialysis systems comprising a plurality of electrodialysis devices, wherein each electrodialysis device of the plurality of electrodialysis devices has a product inlet stream, a product outlet stream, a brine inlet stream, and a brine outlet stream. The product inlet stream for a first electrodialysis device comprises the brine outlet stream of a second electrodialysis device. Further, a first portion of a feed stream is the brine inlet stream for the first electrodialysis device and a second portion of the feed stream is the brine inlet stream for the second electrodialysis device or a third electrodialysis device.

公开(公告)号：US11377369B2

公开(公告)日：2022-07-05

申请号：US16826145

申请日：2020-03-20

申请人： Mind Body (Asia) Limited

发明人： Shu Yuen Wong ,  Hong Ning Mak ,  Siyue Li ,  Zihao Chen ,  Meng Xu

IPC分类号： C02F1/28 ,  B01D69/02 ,  B01D71/34 ,  C02F1/44 ,  C02F101/10 ,  C02F101/14 ,  C02F101/16 ,  C02F101/20 ,  C02F101/22

摘要： The invention provides a water filtration system for removing heavy metals, residual chlorine, estrogens, bacteria and dust from tap water. The system includes a first adsorbent stage cartridge including approximately 40-65 wt. % of silver-impregnated activated carbon, approximately 1-10 wt. % of activated alumina, approximately 15-35 wt. % of ceramic balls, approximately 0.5-1 wt. % of chitosan and approximately 0.5-1 wt. % of kinetic degradation fluxion media. The second filtration stage cartridge includes an antifouling electrospun nanofiber membrane. A flow path is provided between the first adsorbent stage cartridge and the second filtration stage cartridge. The multiple stage water filtration system is capable of filtering water at a volume rate of at least approximately 2 liters per minute. In one embodiment, the nanofibers may be polyvinylidene fluoride doped with polyacrylonitrile and including bacteria-repellent methoxy polyethylene glycol side chains such that the nanofiber membrane has a water contact angle of approximately 55 degrees or less.

公开(公告)号：US10759682B2

公开(公告)日：2020-09-01

申请号：US15320744

申请日：2015-07-01

申请人： VOLTEA B.V.

发明人： Albert Van Der Wal ,  Raúl Cubedo Castelló ,  Freddie Kerpels ,  Hank Robert Reinhoudt

IPC分类号： C02F1/461 ,  C02F1/469 ,  C02F5/00 ,  C02F101/10 ,  C02F101/14 ,  H01G11/24 ,  H01G11/38 ,  H01G11/28 ,  C02F101/16 ,  C02F103/00 ,  C02F103/02 ,  C02F103/04 ,  C02F103/06 ,  C02F103/10 ,  C02F103/28 ,  C02F103/42

摘要： A method to prepare a coated current collector electrode of a flow through capacitor. The method includes preparing a coating paste includes: 10-50 weight % of carbon having a specific surface area of at least 500 m2/g; 0.3-5 weight % of a binder; 10-50 weight % based on the total paste of a first solvent having a first boiling point; and 10-50 weight % based on the total paste of a second solvent having a second boiling point. The method further includes applying the coating paste on a current collector; and allowing the second solvent in the coating paste applied on the current collector to evaporate at a temperature lower than the first boiling point.

公开(公告)号：US10759681B2

公开(公告)日：2020-09-01

申请号：US16021462

申请日：2018-06-28

申请人： BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS

发明人： Tito Viswanathan

IPC分类号： B01J20/02 ,  B01J41/09 ,  C02F1/28 ,  C02F1/42 ,  C02F101/10 ,  C02F101/20 ,  C02F101/14 ,  C02F103/00 ,  C02F103/10

摘要： The present disclosure relates to water purification compositions and the method of producing the same. Specifically, the present disclosure relates to compositions containing a substrate that has hydroxyl, thiol, carboxyl or amino groups, a metal oxide, and a carboxylic acid compound, and the method of producing the same. The composition is useful for the removal of soluble phosphorus, selenium, fluoride, arsenic and other heavy metal contaminants that may be present in water. The composition could be of use in numerous fields, including but not limited to, oil and gas, mining, storm water, agricultural runoffs, municipal wastewater, and industrial wastewater.

公开(公告)号：US20200156968A1

公开(公告)日：2020-05-21

申请号：US16628623

申请日：2018-07-03

申请人： CHEMTREAT, INC

发明人： William Henderson ,  Vladimir Djukanovic ,  Nicholas Saymour

IPC分类号： C02F1/52 ,  C02F1/66 ,  C02F101/14 ,  C02F101/10

摘要： A method for treating water to remove a target analyte that includes adding to the water a rare earth metal salt and a coagulant, and then removing the target analyte from the water. The treatment composition can be added as a blend that includes die coagulant and the rare earth metal salt.

公开(公告)号：US10532327B2

公开(公告)日：2020-01-14

申请号：US15214137

申请日：2016-07-19

申请人： Ecolab USA Inc.

发明人： Seong-Hoon Yoon

IPC分类号： B01D65/10 ,  B01D61/04 ,  B01D61/02 ,  B01D65/08 ,  C02F101/14 ,  C02F1/00 ,  C02F1/44 ,  C02F5/10 ,  C02F103/04 ,  C02F103/02

摘要： Methods of conditioning a membrane utilized for water purification are provided. The methods monitor membrane performance during water purification or membrane conditioning via fluorometric measurement. The monitoring allows for the detection of removal efficiency of the fluorescing substance. A conditioner is introduced in the feed stream to increase the detected removal efficiency of a fluorescing substance by the membrane. The conditioner generally extends the useful life of the membrane being conditioned.

公开(公告)号：US10519048B2

公开(公告)日：2019-12-31

申请号：US14889055

申请日：2014-05-09

申请人： HÖGANÄS AB (PUBL)

发明人： Madan Tandukar ,  Kyle Unger ,  Paul Endler

IPC分类号： C02F1/46 ,  C02F1/461 ,  C02F1/463 ,  C25B11/03 ,  C25B11/04 ,  C25B11/12 ,  C25B1/04 ,  C02F1/66 ,  C02F101/10 ,  C02F101/14 ,  C02F101/22

摘要： An electrochemical cell containing a sacrificial electrode suitable for electrocoagulation as well as an electrocoagulation process for removing various pollutants from water or wastewater by the use of the electrochemical cell. Also, the sacrificial electrode itself. Several electrochemical cells can be coupled to an electrochemical cell assembly. Certain aspects and embodiments are especially suitable for reduction of fluoride or fluoride in combination with heavy metals such as hexavalent chromium or arsenic.

公开(公告)号：US09901918B2

公开(公告)日：2018-02-27

申请号：US14637786

申请日：2015-03-04

申请人： Graver Technologies LLC

发明人： James Knoll ,  Katie Henderson ,  Anatoly Bortun

IPC分类号： B01J41/10 ,  B05D1/12 ,  C02F1/28 ,  C02F1/42 ,  C02F103/32 ,  C02F101/10 ,  C02F101/14

CPC分类号： B01J41/10 ,  B01J20/08 ,  B01J20/20 ,  B01J20/28057 ,  B01J20/28069 ,  B01J20/3236 ,  B05D1/12 ,  C02F1/281 ,  C02F1/283 ,  C02F1/288 ,  C02F1/42 ,  C02F2001/422 ,  C02F2101/103 ,  C02F2101/105 ,  C02F2101/14 ,  C02F2103/32

摘要： A high capacity hybrid ion exchange material with enhanced ability to selectively remove molecular (organics) and anionic (fluoride ion and oxyanions of phosphorus and arsenic) species from drinking water, industrial streams, and wastes, for applications predominantly in the medical and food industries.