公开(公告)号：US10308526B2

公开(公告)日：2019-06-04

申请号：US14719299

申请日：2015-05-21

申请人： Gradiant Corporation

发明人： Maximus G. St. John ,  Steven Lam ,  Prakash Narayan Govindan

IPC分类号： C02F1/04 ,  C02F9/00 ,  C02F1/42 ,  C02F1/56 ,  C02F1/52 ,  C02F1/463 ,  C02F11/122 ,  C02F1/20 ,  C02F1/24 ,  C02F1/66 ,  C02F1/40 ,  C02F101/10 ,  C02F101/32 ,  C02F103/10 ,  C02F1/00 ,  C02F1/28

摘要： Water treatment systems and associated methods are generally described. Certain embodiments of the water treatment systems and methods described herein may be used to treat water comprising one or more contaminants (e.g., oil, grease, suspended solids, scale-forming ions, volatile organic material) to remove at least a portion of the one or more contaminants. In some embodiments, at least a portion of the treated water may be used directly in certain applications (e.g., oil and/or gas extraction processes). In some embodiments, at least a portion of the treated water may undergo desalination to produce substantially pure water and/or concentrated brine.

公开(公告)号：US20190152814A1

公开(公告)日：2019-05-23

申请号：US16096108

申请日：2017-05-22

申请人： Dow Global Technologies LLC

发明人： Cole Witham ,  Paul A. Gillis ,  Michael K. Poindexter ,  Jason S. Moore

IPC分类号： C02F1/56 ,  C02F11/147 ,  C02F11/121

摘要： The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a mixture of polyethylene oxide polymers, in particular a mixture of one or more high molecular weight polyethylene oxide polymer and one or more ultra high molecular weight polyethylene oxide polymer. Said mixture of polyethylene oxide polymers is useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

公开(公告)号：US10259729B2

公开(公告)日：2019-04-16

申请号：US14846123

申请日：2015-09-04

申请人： Clean Chemistry, Inc.

发明人： Wayne E. Buschmann

IPC分类号： C02F1/72 ,  C02F1/52 ,  C02F1/66 ,  C02F5/02 ,  C02F1/28 ,  C02F1/56 ,  C02F9/00 ,  C02F1/00 ,  C02F101/32 ,  C02F1/24 ,  C02F1/40 ,  C02F1/74 ,  C02F101/20 ,  C02F103/10 ,  C02F103/36

摘要： In some embodiments, a method may include separating contaminants from impaired water. The method may include contacting impaired water with a peracetate oxidant solution. The method may include mixing said impaired water with the peracetate oxidant solution. The method may include separating the impaired water oxidant solution mixture into solids and a water phase. In some embodiments, the peracetate oxidant solution may include peracetate anions and a peracid. The peracetate oxidant solution may have a pH from about 10 to about pH 12. The peracetate oxidant solution may have a molar ratio of peracetate anions to peracid ranging from about 60:1 to about 6000:1. In some embodiments, a peracetate anion to hydrogen peroxide molar ratio is greater than about 16:1. In some embodiments, a reactive coagulant, a softener, and/or a floc aid may be added to the impaired water.

公开(公告)号：US10227249B2

公开(公告)日：2019-03-12

申请号：US15373805

申请日：2016-12-09

申请人： ECOLAB USA INC.

发明人： Seung-Nyung Huh ,  Jin Nyung Huh

IPC分类号： B01F3/08 ,  B01F7/00 ,  B01F15/00 ,  C02F1/56 ,  C02F11/14

摘要： The present invention relates to mixing apparatus for crushing sludge comprising a motor part in which a rotary shaft is inserted into the motor part and the motor part is rotated, a moving part formed to penetrate the motor part from one side to another side and move a chemical which is flowed through an outside chemical feeder to the another side, and a paddle mounted on the another side of the motor part to rotate based on the rotation of the motor part and spray the chemical.

公开(公告)号：US10179296B2

公开(公告)日：2019-01-15

申请号：US14719239

申请日：2015-05-21

申请人： Gradiant Corporation

发明人： Prakash Narayan Govindan ,  Maximus G. St. John ,  Steven Lam ,  Mark Zaloudek ,  Karim M. Chehayeb ,  Samar Shah

IPC分类号： B01D1/00 ,  B01D5/00 ,  C02F1/04 ,  B01D1/14 ,  C02F1/10 ,  C02F1/52 ,  C02F1/66 ,  C02F103/08 ,  C02F101/32 ,  C02F1/40 ,  C02F1/42 ,  C02F1/56 ,  C02F5/02

摘要： Systems and methods related to desalination systems are described herein. According to some embodiments, the desalination systems are transiently operated and/or configured to facilitate transient operation. In some embodiments, a liquid stream comprising water and at least one dissolved salt is circulated through a fluidic circuit comprising a desalination system. In some embodiments, a portion of the desalination system (e.g., a humidifier) is configured to remove at least a portion of the water from the liquid stream to produce a concentrated brine stream enriched in the dissolved salt. In certain cases, the concentrated brine stream is recirculated through the fluidic circuit until the concentrated brine stream reaches a relatively high density (e.g., at least about 10 pounds per gallon) and/or a relatively high salinity (e.g., a total dissolved salt concentration of at least about 25 wt %). In certain embodiments, additional salt is added to the concentrated brine stream to produce an ultra-high-density brine stream (e.g., a brine stream having a density of at least about 11.7 pounds per gallon). Some aspects relate to a system that is configured to promote energy efficiency by recovering heat from the recirculated concentrated brine stream upon discharge from the fluidic circuit.

公开(公告)号：US20180370825A1

公开(公告)日：2018-12-27

申请号：US16064860

申请日：2016-09-20

申请人： KURITA WATER INDUSTRIES LTD.

发明人： Yasuhiro OOI ,  Keijirou TADA ,  Akihiro FUJII

IPC分类号： C02F1/56 ,  B01D21/01 ,  B01D61/04 ,  B01D61/16 ,  B01D61/58 ,  C02F1/44

摘要： Provided are a method and an apparatus for clarifying industrial water that enable industrial water to be clarified to a high degree with a small amount of coagulant instead of an inorganic coagulant, such as PAC, aluminum sulfate, or ferric chloride, which need to be used in a large amount for clarifying industrial water and are capable of producing treated water having qualities particularly suitable for an RO membrane treatment. The method for clarifying industrial water includes adding a melamine-formaldehyde resin acid colloidal solution to industrial water in order to coagulate the industrial water and subsequently filtering the coagulated water. The coagulated water may be directly filtered with a pressure or gravity filtration device, or with a microfiltration or ultrafiltration membrane module, without being subjected to solid-liquid separation using a sedimentation or floatation separation device prior to the filtration treatment.

公开(公告)号：US10155670B1

公开(公告)日：2018-12-18

申请号：US15686931

申请日：2017-08-25

申请人： Tom Happel

发明人： Tom Happel

IPC分类号： E03F5/14 ,  B01D21/01 ,  C02F1/56 ,  C02F1/00 ,  C02F1/40 ,  C02F1/52 ,  B01D21/00 ,  E03F5/04 ,  B01D21/24 ,  C02F103/00

摘要： Vaults, boxes, systems, and treatment methods to capture pollutants from stormwater runoff and prevent conveyance of the pollutants from entering a receiving water body or landscape area, which can be part of a permanent stormwater drainage infrastructure. A polymer system with at least one polymer log can be used to treat stormwater runoff and any stormwater conveyance, such as a pipe, box culvert, ditchline, and the like. Once stormwater has been dosed with polymers, the treatment easily retains the pollutants, and the one or more polymer logs continue to enhance water quality, while providing an easy method for servicing polymer logs without requiring service technicians to enter the vault. A hydroslide servicing system can include pivotal spray heads to pivot to parallel positions over a sloped floor to flush debris toward easy to reach locations to be vacuumed, and vertical spray heads which can break up debris bridges.

公开(公告)号：US10139385B2

公开(公告)日：2018-11-27

申请号：US13964478

申请日：2013-08-12

申请人： Ecolab USA Inc.

发明人： Lan Xiao ,  Yanjiao Xie

IPC分类号： G01N33/18 ,  C02F1/52 ,  G01N21/64 ,  C02F1/50 ,  C02F1/54 ,  C02F1/56 ,  C02F5/00 ,  C12Q3/00 ,  C02F103/02 ,  C02F103/10 ,  C02F103/28 ,  C02F103/36

摘要： The invention provides methods and compositions for utilizing encapsulated tracer dyes in difficult liquids such as wastewater or with highly reactive treatment chemicals such as aluminum-based coagulants. In difficult liquids or highly reactive treatment chemicals even so-called “inert” tracers end up reacting and their fluorescence changes. As a result they are inconsistent and cannot be used to measure the amount of treatment chemical present. But by encapsulating the tracer dyes, even non inert tracer dyes become inert and they can reliably be used to measure the amount of treatment chemical present even if highly reactive or in a difficult liquid.

公开(公告)号：US20180319682A1

公开(公告)日：2018-11-08

申请号：US15773572

申请日：2016-11-04

申请人： Kemira Oyj

发明人： Jonni Ahlgren ,  Sakari Halttunen ,  Jussi Ruotsalainen ,  Kari Saari

IPC分类号： C02F1/56 ,  D21C11/00

CPC分类号： C02F1/56 ,  C02F1/52 ,  C02F1/5245 ,  C02F2101/30 ,  C02F2101/34 ,  C02F2103/28 ,  C07G1/00 ,  C08H6/00 ,  D21C11/00 ,  D21C11/0007 ,  D21C11/0014 ,  D21C11/0028

摘要： The invention relates to a method for optimising material recovery in a chemical pulping process. The method comprises treating of cellulosic raw material with cooking chemicals in a cooking step, where lignin is at least partly dissolved into cooking liquid phase and separated from fibres. The lignin is separated from the cooking liquid phase. The separated lignin is used for formation of a treatment composition comprising at the most 1 weight-% of aluminium. A bleaching liquid phase is treated with the treatment composition in order to remove organic humic substances from the bleaching liquid. Organic sludge is formed and it is used for energy production in a chemical recovery step.

公开(公告)号：US10066107B2

公开(公告)日：2018-09-04

申请号：US14030529

申请日：2013-09-18

申请人： Solenis Technologies, L.P.

发明人： Lawrence J. Andermann, Jr. ,  Jeffrey H. Peltier ,  Michael James Bluemle ,  Markus Broecher

IPC分类号： C02F1/52 ,  C08L97/00 ,  C08L1/10 ,  C08L3/00 ,  C08L5/00 ,  C08K3/10 ,  C08L1/28 ,  C08L3/02 ,  C08L5/02 ,  C02F1/56 ,  C02F103/10

摘要： A process for improving the rheological properties of an aqueous dispersion comprising adding a rheology modifier to the aqueous dispersion, and then adding a water soluble synthetic polymer flocculant to the aqueous dispersion. The rheology modifier may be selected from the group consisting of natural polymers, semi-natural polymers, synthetic materials and combinations thereof. The water soluble synthetic polymer flocculant may be selected from the group consisting of water soluble anionic polymers, cationic polymers, amphoteric polymers, nonionic polymers, and combinations thereof.