公开(公告)号：US20210300803A1

公开(公告)日：2021-09-30

申请号：US17230494

申请日：2021-04-14

申请人： KEMIRA OYJ

发明人： Duane C. Wilson ,  Thomas Fenderson ,  Igal Maasen ,  Sukhjit Aujla

IPC分类号： C02F1/56 ,  C02F11/14 ,  C08F220/56 ,  C08L33/26

摘要： The present embodiments generally relate to the use of one or more polymers, e.g., one or more dry acid polymers and/or one or more dry acid polymers with salt, as flocculants, generally for treating tailings, e.g., oil sands tailings, in need of solid-liquid separation, e.g., in order to efficiently recycle water and/or to reduce the volume of tailings which may be transferred to a tailings pond and/or a dedicated disposal area.

公开(公告)号：US20210276895A1

公开(公告)日：2021-09-09

申请号：US17257568

申请日：2019-07-04

申请人： Clearflow Group Inc.

发明人： Gerald Hanna

IPC分类号： C02F1/52 ,  C02F1/68 ,  C02F1/56

摘要： A fluid reaction tank is provided having an inlet vortex tube for receiving fluid having suspended solids therein and to impart a vortex motion on the fluid flowing therethrough into a reactor housing having one or more cartridges containing a flocculant composition. The cartridges can have perforated inner sidewalls to allow contact of fluid with the composition. The cartridges can further have vortex forming ridges therein to impart or to maintain the vortex motion of the fluid flowing through the fluid reaction tank.

公开(公告)号：US11111165B2

公开(公告)日：2021-09-07

申请号：US15558402

申请日：2016-03-16

申请人： Infinite Water Technologies Pty Ltd

发明人： Gheorghe Emil Duta

IPC分类号： C02F1/72 ,  C02F9/00 ,  C02F1/52 ,  C02F1/44 ,  C02F1/68 ,  C02F1/76 ,  C02F1/56 ,  C02F101/10

摘要： A process for treating water containing contaminants comprising the steps of: (a) contacting water to be treated with an inorganic oxidising salt containing manganese or iron for a time effective for oxidising a portion of said contaminants; (b) contacting water treated in oxidation step (a) with at least a chlorine containing agent for disinfection and to generate, in situ and through reaction with chemical compounds produced in pre-oxidation step (a), a coagulant for coagulating oxidised contaminants present in the water; (c) separating coagulated contaminants from the water; and (d) subjecting water to a catalytic oxidation for oxidising residual oxidisable contaminants, said catalytic oxidation being catalysed, in part, by manganese or iron species, depending on the residual selected oxidising salt left in solution in water after oxidation step (a). Permanganates are particularly advantageous inorganic oxidising salts and chlorine dioxide is a particularly preferred chlorine containing disinfecting agent for use in step (b). Apparatus for conducting the process is also disclosed.

公开(公告)号：US20210269331A1

公开(公告)日：2021-09-02

申请号：US17258342

申请日：2018-07-18

申请人： Vermeer Manufacturing Company

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

IPC分类号： C02F1/52 ,  C02F11/143 ,  C02F11/147 ,  C02F11/121 ,  C02F1/56 ,  G01N15/02 ,  G01N29/032 ,  G01N29/24

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：US11097971B2

公开(公告)日：2021-08-24

申请号：US16733863

申请日：2020-01-03

申请人： Aicardo Roa-Espinosa ,  Michelle H Pham

发明人： Aicardo Roa-Espinosa ,  Michelle H Pham

IPC分类号： C02F11/147 ,  C02F11/00 ,  C02F1/52 ,  C02F1/56 ,  E21B21/06 ,  C02F1/28 ,  C02F11/14 ,  B01D21/01 ,  C02F103/10 ,  C02F11/121

摘要： A composition for solid pellets and a process for removing water from particulate material slurries produced by horizontal drilling, vertical drilling and dredging of bodies of water are disclosed. The composition comprises a precipitating agent, a purification agent and, optionally, a binding agent. The process comprises the steps of 1) water removal accomplished by diffusing a chemical reagent into the particulate material source stream that results in separating out a clean water fraction and 2) reacting the sludge with a demulsifier and a superabsorbent polymer that locks onto the water in the remaining slurry thus turning the slurry into a solid crust. The crust is ground into a particulate form and disposed in a landfill. The combined effect of the treatments is the thickening of the particulate material slurry from about 10% solids to about 25% solids. The removed water may be used for further drilling and drinking.

公开(公告)号：US11097960B2

公开(公告)日：2021-08-24

申请号：US15562434

申请日：2016-04-18

申请人： SUEZ INTERNATIONAL

发明人： Adriana Gonzalez Ospina ,  David Ratte

IPC分类号： C02F1/28 ,  C02F1/52 ,  C02F1/56 ,  C02F1/00

摘要： Disclosed is a method for treating water including: —an adsorption step which involves bringing the water into contact with a new adsorbant, the water being referred to as “pre-adsorbed water” before being brought into contact with the new adsorbant, and being referred to as “adsorbed water” after being brought into contact with the new adsorbant, and—a recirculation step which involves removing at least a portion of the new adsorbant brought into contact with the water during the adsorption step, the removed portion constituting a used adsorbant. During the recirculation step, the used adsorbant is brought into contact with the pre-adsorbed water. Also, the pre-adsorbed water does not undergo a clarification step that involves eliminating from the water at least a portion of the suspended matter that it contains. Also disclosed is a device for implementing such a method.

公开(公告)号：US20210253984A1

公开(公告)日：2021-08-19

申请号：US17166094

申请日：2021-02-03

申请人： Ecolab USA Inc.

发明人： Lan Xiao

IPC分类号： C12F3/10 ,  C12P7/06 ,  B01D21/01 ,  B01D21/00 ,  C02F1/24 ,  A23K10/38 ,  C02F1/56

摘要： Provided is a method of processing stillage from an ethanol production process. The method comprises treating stillage comprising oil, protein, and water upstream of a separation, concentration or evaporation step with at least one organic coagulant and at least one flocculant, thereby forming treated thin stillage comprising solids which include at least a portion of the oil and protein; and clarifying the treated stillage via a solid/liquid separation process thereby forming clarified stillage and a separated solids phase comprising at least a portion of the protein from the stillage.

公开(公告)号：US20210253461A1

公开(公告)日：2021-08-19

申请号：US17240076

申请日：2021-04-26

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Klin Aloysius RODRIGUES

IPC分类号： C02F5/12 ,  C08F2/44 ,  C08K5/00 ,  C02F1/56 ,  G01N21/64 ,  C09K11/06

摘要： A method of inhibiting scale in an industrial water system includes the steps of dosing the industrial water system with a water treatment polymer comprising at least 10 mol % of carboxylic acid monomer and a quaternized naphthalimide fluorescent monomer as disclosed herein, and then monitoring the fluorescence of the water system. The polymers are also useful for flocculation and coagulation in wastewater treatment.

公开(公告)号：US11078095B2

公开(公告)日：2021-08-03

申请号：US16560473

申请日：2019-09-04

申请人： Dexerials Corporation

发明人： Kazuhiro Kimura ,  Koji Hirata

IPC分类号： B01D21/01 ,  C08L33/26 ,  C02F1/56 ,  C02F101/20

摘要： [Solution] Provided is a water purification agent suitable for use in an automated purification treatment device, when a wastewater purification treatment using a plant-derived water purification agent is performed with the automated purification treatment device. The water purification agent is a granulated product containing a mixture of a plant powder and a polymer coagulant.

公开(公告)号：US11027993B2

公开(公告)日：2021-06-08

申请号：US15370479

申请日：2016-12-06

申请人： EXTRAKT PROCESS SOLUTIONS, LLC

发明人： Paul C. Painter ,  Bruce G. Miller ,  Aron Lupinsky

IPC分类号： C02F1/52 ,  C02F1/56 ,  C02F1/68 ,  C02F11/121 ,  C02F103/10

摘要： Processes of consolidating oil sands tailings which includes fines and process water are disclosed. The processes include mixing the oil sands tailings with a highly water soluble salt or an aqueous solution thereof to destabilize and consolidate solids in the tailings, e.g., to destabilize and consolidate fines in the tailings and separating the consolidated solids from the process water. A water soluble polymer and coarse particles, e.g., sand, can also be used in the treatment of oil sands tailings.