公开(公告)号：US12129196B2

公开(公告)日：2024-10-29

申请号：US17434507

申请日：2021-08-09

申请人： ECOLAB USA Inc.

发明人： Ning Jin ,  Lingfeng Han ,  Chunbo Yu

IPC分类号： C02F1/52 ,  C02F1/44 ,  C02F1/56 ,  C02F5/08 ,  C02F101/10

CPC分类号： C02F5/08 ,  C02F1/441 ,  C02F1/5245 ,  C02F1/56 ,  C02F2101/10 ,  C02F2303/22

摘要： A method of reducing silica fouling in an aqueous system is provided. The method includes adding a composition including a ferric salt and a magnesium salt to an aqueous medium to precipitate silica in the aqueous medium and form a precipitated silica. The method also includes removing at least a portion of the precipitated silica from the aqueous medium to form an aqueous supernatant.

公开(公告)号：US12110242B2

公开(公告)日：2024-10-08

申请号：US17603586

申请日：2020-03-13

申请人： KURITA WATER INDUSTRIES LTD.

发明人： Ayako Sakamoto ,  Shigeru Sato ,  Kazuya Watanabe ,  Shihoko Sekiguchi

IPC分类号： C02F11/147 ,  B01D21/01 ,  C02F1/56 ,  C08F220/34 ,  C08F220/38

CPC分类号： C02F11/147 ,  B01D21/01 ,  C02F1/56 ,  C08F220/34 ,  C08F220/385 ,  C08F2800/10

摘要： Provided are: a sludge dehydrating agent which can exert a steady dehydrating effect on various types of sludge and has excellent dehydration performance; and a sludge dehydration method using the sludge dehydrating agent. The sludge dehydrating agent of the present invention with a polymer which has a constituent unit derived from a cationic monomer, wherein a value k determined from an intrinsic viscosity [η] 1 [dL/g] of a 1-mol/L aqueous sodium nitrate solution of the polymer at 30° C. and an intrinsic viscosity [η] 0.01 [dL/g] of a 0.01-mol/L aqueous sodium nitrate solution of the polymer at 30° C. in accordance with formula (I) is 0.8 to 2.2 exclusive

k=([η]0.01−[η]1)/9  (I).

公开(公告)号：US12110241B2

公开(公告)日：2024-10-08

申请号：US16493312

申请日：2018-03-02

申请人： M Vest Water AS

发明人： Atle Mundheim

IPC分类号： C02F1/56 ,  C02F1/40 ,  C02F1/52 ,  C02F103/36

CPC分类号： C02F1/56 ,  C02F1/40 ,  C02F1/5227 ,  C02F1/5263 ,  C02F2103/365

摘要： A product and method are disclosed for the removal of contamination from a water flow in which the product according to the invention blended into a contaminated water flow gather contamination to large easily separable agglomerates. A use of product and method for separation of contamination from water is also disclosed.

公开(公告)号：US12091336B2

公开(公告)日：2024-09-17

申请号：US17293893

申请日：2019-11-13

申请人： Jorge Javier Vargas Vargas

发明人： Jorge Javier Vargas Vargas

IPC分类号： C02F1/52 ,  C02F1/28 ,  C02F1/50 ,  C02F1/56 ,  C02F1/58 ,  C02F1/76 ,  C02F101/10 ,  C02F101/16 ,  C02F101/20 ,  C02F101/30 ,  C02F101/32

CPC分类号： C02F1/56 ,  C02F1/286 ,  C02F1/50 ,  C02F1/5245 ,  C02F1/5263 ,  C02F1/76 ,  C02F2101/105 ,  C02F2101/16 ,  C02F2101/20 ,  C02F2101/301 ,  C02F2101/306 ,  C02F2101/308 ,  C02F2101/32 ,  C02F2303/02 ,  C02F2303/04 ,  C02F2305/023

摘要： The invention corresponds to a composition for the treatment of polluted water and the method for the corresponding water treatment, wherein the composition comprises a flocculant, a stabilizer, an algaecide and further comprising chelator, disinfectant and oxygenator, wherein after diluting the composition in polluted water under certain stirring conditions, a water with properties of total hardness, total chlorine, total bromine, free chlorine, pH, alkalinity and cyanuric acid of a potable water is obtained.

公开(公告)号：US12067962B2

公开(公告)日：2024-08-20

申请号：US17258342

申请日：2018-07-18

申请人： Vermeer Manufacturing Company

发明人： Gregory Anderson ,  Brandon Storm ,  Andrew Strobel ,  Corey Lanoue ,  Tayte Askelsen ,  Samuel Edmund Whittome ,  Ross Peter Jones

IPC分类号： G10K1/066 ,  C02F1/52 ,  C02F1/56 ,  C02F11/121 ,  C02F11/14 ,  C02F11/143 ,  C02F11/147 ,  C02F11/148 ,  C02F103/10 ,  G01N15/02 ,  G01N29/032 ,  G01N29/24

CPC分类号： G10K1/066 ,  C02F1/5209 ,  C02F1/5236 ,  C02F1/56 ,  C02F11/121 ,  C02F11/14 ,  C02F11/143 ,  C02F11/147 ,  G01N15/02 ,  G01N29/032 ,  G01N29/2437 ,  C02F11/148 ,  C02F2103/10 ,  C02F2209/105 ,  G01N2291/015 ,  G01N2291/02416 ,  G01N2291/101

摘要： Systems and methods for dewatering slurries having relatively high solids content such as earthen slurries are disclosed. In some embodiments, one or more transducer devices configured for acoustic spectroscopy and/or electroacoustic spectroscopy are used to determine a parameter related to the particle size distribution (e.g., specific surfaced area) and/or zeta potential of the slurry.

公开(公告)号：US20240262786A1

公开(公告)日：2024-08-08

申请号：US18562742

申请日：2022-07-08

申请人： SPCM SA

发明人： Cédrick FAVERO ,  Johann KIEFFER

IPC分类号： C07C231/02 ,  C02F1/56 ,  C02F11/147 ,  C02F103/12 ,  C04B24/16 ,  C04B103/46 ,  C07C233/09 ,  C07C233/38 ,  C08F220/56 ,  C09K8/12 ,  C09K8/487 ,  C09K8/584 ,  C09K8/588 ,  C09K8/60 ,  C09K8/68 ,  C12P7/40 ,  E21B33/14 ,  E21B43/16 ,  E21B43/26

CPC分类号： C07C231/02 ,  C02F1/56 ,  C02F11/147 ,  C04B24/163 ,  C07C233/09 ,  C07C233/38 ,  C08F220/56 ,  C09K8/12 ,  C09K8/487 ,  C09K8/584 ,  C09K8/588 ,  C09K8/604 ,  C09K8/68 ,  C12P7/40 ,  E21B33/14 ,  E21B43/16 ,  E21B43/26 ,  C02F2103/12 ,  C04B2103/46 ,  C08F2800/20

摘要： A method for obtaining substituted alkyl(meth)acrylamide includes reaction between (meth)acrylic acid or an ester thereof, and a primary or a secondary alkylamine. At least one of the two is at least partially renewable and non-fossil. The substituted alkyl(meth)acrylamide can have a bio-sourced carbon content of between 5 wt % and 100 wt % relative to the total carbon weight in the substituted alkyl(meth)acrylamide. The bio-sourced carbon content can be measured according to the standard ASTM D6866-21 Method B.

公开(公告)号：US20240254019A1

公开(公告)日：2024-08-01

申请号：US18588538

申请日：2024-02-27

申请人： EnviCore Inc.

发明人： Milana Trifkovic ,  Shahrukh Shamim ,  Aleksandra Govedarica ,  Mahmoud Ansari

IPC分类号： C02F1/52 ,  C02F1/26 ,  C02F1/56 ,  C02F11/143 ,  C02F11/148 ,  C02F101/10 ,  C02F101/32 ,  C02F103/10

CPC分类号： C02F1/5245 ,  C02F1/26 ,  C02F1/56 ,  C02F11/143 ,  C02F11/148 ,  C02F2001/5218 ,  C02F2101/10 ,  C02F2101/32 ,  C02F2103/10

摘要： Methods are provided for treating intimately dispersed mixtures of water, bitumen, and fine clay particles, such as oil sands mature fine tailings (MFT). Select methods use dissolved silicate ions and a base (alkali), optionally in combination with a biopolymer, to flocculate a slurry. A mixing regime is disclosed involving the addition to MFT of silicate ions in solution and alkali, to initiate aggregation/destabilization of clay particles. Methods are exemplified that provide distinct sediment layers in conjunction with the release of residual bitumen (for example 40-50% of the initial bitumen content). In these exemplified embodiments, a densely packed bottom layer containing ˜75 wt. % solids showed high yield stress values (3.5-5.5 kPa) and entrapped little residual bitumen (0.2-0.3 wt. %). The methods accordingly segregate a material suitable for reclamation.

公开(公告)号：US20240190743A1

公开(公告)日：2024-06-13

申请号：US18424751

申请日：2024-01-27

申请人： Shenzhen Academy of Environmental Sciences ,  Hainan University

发明人： Gong Cheng ,  Sai Wang ,  Xiaodan Chen ,  Wei Li ,  Tuantuan Wang ,  Rui Lin ,  Yiwen Luo ,  Yi Chen

IPC分类号： C02F9/00 ,  C02F1/00 ,  C02F1/44 ,  C02F1/52 ,  C02F1/56 ,  C02F1/66

CPC分类号： C02F9/00 ,  C02F2001/007 ,  C02F1/44 ,  C02F2001/5218 ,  C02F1/5245 ,  C02F1/56 ,  C02F1/66

摘要： A method for treating alkaline fluorine-containing wastewater by combining an induced crystallization method with a tubular membrane filter (TMF) includes: introducing fluorine-containing wastewater into a regulating pond to regulate to 8.0-8.5; introducing alkaline fluorine-containing wastewater into a first-stage chemical sedimentation tank, and adding calcium chloride, poly aluminum chloride, calcium fluoride, and tremolite; performing shearing treatment, then introducing into a first-stage coagulation sedimentation tank and a first-stage inclined-tube sedimentation tank in sequence to discharge a first-stage effluent; introducing the first-stage effluent into a second-stage chemical sedimentation tank, adding calcium chloride and poly aluminum chloride, stirring to react, then introducing into a second-stage coagulation sedimentation tank, adding polyacrylamide, and then flowing into a second-stage inclined-tube sedimentation tank, and discharging a second-stage effluent; and performing a treatment by using the TMF, and then discharging a treated second-stage effluent.

公开(公告)号：US11866354B2

公开(公告)日：2024-01-09

申请号：US17410356

申请日：2021-08-24

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 ,  C02F1/28 ,  C02F1/56 ,  A61K8/73 ,  A61K31/722 ,  A61K47/36 ,  A61K47/69 ,  A61K49/18 ,  C02F101/10 ,  C02F101/14 ,  C02F101/20 ,  C02F101/22

CPC分类号： C02F1/5263 ,  B01D21/01 ,  B01J20/22 ,  C02F1/286 ,  C02F1/5272 ,  C02F1/56 ,  A61K8/73 ,  A61K31/722 ,  A61K47/36 ,  A61K47/6939 ,  A61K49/1863 ,  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：US11858841B1

公开(公告)日：2024-01-02

申请号：US17238745

申请日：2021-04-23

申请人： KINETIX PERFORMANCE SOLUTIONS, LLC

发明人： Jason Paul Danos ,  Steven Leslie Parrish ,  Dondi Charles Troxler

IPC分类号： C02F9/00 ,  B01J20/20 ,  C02F101/34 ,  C02F1/00 ,  C02F1/28 ,  C02F1/76 ,  C02F1/56 ,  C02F101/36 ,  C02F101/12 ,  C02F103/00

CPC分类号： C02F9/00 ,  B01J20/20 ,  B01J2220/4806 ,  C02F1/004 ,  C02F1/283 ,  C02F1/56 ,  C02F1/76 ,  C02F2101/12 ,  C02F2101/34 ,  C02F2101/36 ,  C02F2103/007 ,  C02F2303/02 ,  C02F2303/04 ,  C02F2303/24

摘要： A method of removing organic carbon and other contaminants from a water stream. The method comprises screening large solids from the stream. Pre-oxidation chemicals may then be added. A coagulant is fed into the stream. An activated carbon, preferably formed from lignite, is added by pumping a highly concentrated activated carbon slurry into the stream. The stream, including the activated carbon and coagulant, next flows into a clarifier, where the coagulant will flocculate and enmesh the activated carbon. The activated carbon adsorbs organic carbon and other contaminants, including bacteria, pharmacological agents, and hydrocarbons, as the stream flows through the clarifier. Eventually, the flocculate will agglomerate and settle out in the clarifier, where it, the enmeshed carbon, and the contaminants they contain may be removed. The stream's organic carbon content exiting the clarifier will be much reduced. Accordingly, less primary oxidizing agent will be needed to treat any remaining organic carbon.