公开(公告)号：US11034604B2

公开(公告)日：2021-06-15

申请号：US16156957

申请日：2018-10-10

申请人： ConocoPhillips Company

发明人： Murugavel Kannan ,  Ramesh Sharma

IPC分类号： C02F9/00 ,  E21B21/06 ,  E21B43/34 ,  E21B43/24 ,  E21B43/16 ,  C02F5/06 ,  C02F1/42 ,  C02F103/10 ,  C02F1/00 ,  C02F1/56

摘要： A new water treatment system for SAGD operations is disclosed. Instead of treating both produced water and recycled water using warm lime softening systems, the recycled water is combined with saline water in a cold lime softening system. This results in slightly warmed reactions that require less chemicals during the lime softening process while also allowing for larger volumes of treated produced water to be generated by the warm lime softening system.

公开(公告)号：US20190023595A1

公开(公告)日：2019-01-24

申请号：US15511950

申请日：2015-09-14

申请人： VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT

发明人： Didier GRANGE ,  M. COSTE ,  E. BARBIER

IPC分类号： C02F5/06 ,  C02F5/14 ,  C02F1/66 ,  C02F1/28 ,  C02F1/44

摘要： The present invention relates to a method for treating an aqueous liquid effluent containing calcium and carbonate ions and containing precipitation-inhibiting products, said process comprising the following successive steps:a) providing an aqueous liquid effluent supersaturated with CaCO3 and containing precipitation-inhibiting products; b) having the effluent obtained in step a) pass into a reactor with high solid content with a solid content maintained between 20 and 800 g/l and integrated solid-liquid separation, at a pH comprised between 8 and 9.2 allowing in a single step precipitation in situ of the aragonite polymorph of calcium carbonate and removal of the precipitation-inhibiting products; c) recovering an aqueous liquid supernatant containing a suspended solids content of less than or equal to 0.1% by mass of the solid content in the reactor, advantageously a suspended solids content of less than 50 mg/l, the precipitation-inhibiting products being phosphonates.

公开(公告)号：US20180319687A1

公开(公告)日：2018-11-08

申请号：US15969832

申请日：2018-05-03

申请人： Dyson Technology Limited

发明人： Nathan Charles BROWN ,  James David COLEMAN ,  Patricia Rodrigues Da SILVA ,  Jonathan Campbell KNOWLES ,  Gareth Jon OWENS

IPC分类号： C02F5/06 ,  C03C3/16 ,  C02F5/04

CPC分类号： C02F5/06 ,  C02F5/04 ,  C02F5/08 ,  C02F2307/12 ,  C03C3/16

摘要： A polyphosphate-based glass scale inhibition composition comprising from about 45 to about 55 mole percent P2O5, from about 35 to about 45 mole percent of an oxide of an alkaline earth metal, and from about 8 to about 12 mole percent of an oxide of an alkali metal.

公开(公告)号：US10023487B2

公开(公告)日：2018-07-17

申请号：US13443971

申请日：2012-04-11

申请人： LNSP Nagghappan ,  John A. Korpiel

发明人： LNSP Nagghappan ,  John A. Korpiel

IPC分类号： C02F9/00 ,  C02F1/40 ,  C02F1/42 ,  C02F1/52 ,  C02F1/56 ,  C02F1/20 ,  E21B43/34 ,  C02F1/44 ,  C02F1/66 ,  C02F1/68 ,  C02F5/06 ,  C02F103/10 ,  C02F103/36

摘要： A method or process for treating wastewater containing high organics, silica, boron, hardness, and suspended and dissolved solids. The method includes degasifying the wastewater for the removal of dissolved gases and thereafter chemically softening the wastewater. After the chemical softening step, the wastewater is directed through a media filter or membrane which removes additional solids and precipitants. Thereafter the wastewater is directed through a sodium ion exchange that further softens the wastewater. The effluent from the ion exchange is directed through a cartridge filter and the effluent from the cartridge filter is directed through one or more reverse osmosis units. At a selected phase of the process, prior to the wastewater reaching the reverse osmosis unit or units, the pH of the wastewater is raised and maintained such that the pH of the wastewater reaching a reverse osmosis unit is at a pH greater than 10.5.

公开(公告)号：US09976193B2

公开(公告)日：2018-05-22

申请号：US15107040

申请日：2014-12-19

申请人： T&L Sugars Limited

发明人： John Kerr ,  Anthony Baiada

IPC分类号： C13B20/00 ,  C02F1/24 ,  C02F1/52 ,  C02F1/66 ,  C13B20/10 ,  C02F1/42 ,  C02F5/06 ,  C02F103/32

CPC分类号： C13B20/007 ,  C02F1/24 ,  C02F1/42 ,  C02F1/5236 ,  C02F1/66 ,  C02F5/06 ,  C02F2103/32 ,  C02F2303/16 ,  C02F2305/04 ,  C13B20/10 ,  Y02P40/44

摘要： A process for the removal of contaminants from a liquor, including two or more of carbonatation, phosphatation and sulphitation of the liquor to form a precipitate having at least some of the contaminants from the liquor, and separating the precipitate from the liquor. The processes may be included in sugar refining or water decontamination processes.

公开(公告)号：US09524483B2

公开(公告)日：2016-12-20

申请号：US13627713

申请日：2012-09-26

申请人： Advanced Aqua Group

发明人： Larry K. Henson ,  Edward C. Szvetecz

IPC分类号： B01D61/00 ,  B01D63/00 ,  C02F1/44 ,  G06Q10/08 ,  C02F9/00 ,  C02F1/04 ,  C02F1/20 ,  C02F1/40 ,  C02F1/46 ,  C02F1/463 ,  C02F1/469 ,  C02F1/68 ,  C02F1/72 ,  C02F1/76 ,  C02F5/06 ,  C02F11/12 ,  C02F1/52 ,  C02F101/32 ,  C02F103/00 ,  C02F103/10 ,  C02F103/32 ,  C02F103/36

CPC分类号： G06Q10/08 ,  C02F1/048 ,  C02F1/20 ,  C02F1/40 ,  C02F1/441 ,  C02F1/442 ,  C02F1/444 ,  C02F1/445 ,  C02F1/4602 ,  C02F1/463 ,  C02F1/4693 ,  C02F1/68 ,  C02F1/72 ,  C02F1/722 ,  C02F1/76 ,  C02F5/06 ,  C02F9/00 ,  C02F11/12 ,  C02F2001/5218 ,  C02F2101/32 ,  C02F2101/322 ,  C02F2103/008 ,  C02F2103/10 ,  C02F2103/322 ,  C02F2103/365 ,  C02F2203/002 ,  C02F2209/005 ,  C02F2209/008 ,  C02F2209/02 ,  C02F2209/05 ,  C02F2209/06 ,  C02F2209/40 ,  C02F2209/42 ,  C02F2303/24

摘要： A system for converting contaminated water, such as produced water, frack flow back water, and other contaminated water from industrial sources into fresh, non-contaminated, or potable water includes a registration and verification unit for registering intake water loads and verifying their content; a receiving system for temporarily isolating each load; an equalization basin for creating an homogenized water source; an electro-coagulation unit in which one or more of the voltage, current, pulse frequency and application time are variable and controlled by one or more of a conductivity sensor; a pH sensor; a level sensor; an ultrafiltration unit for removing organics; a nanofiltration unit; a reverse osmosis unit, and an electrodyalisis unit. The processed concentrate remaining after the water is converted is dewatered via a forward osmosis unit.

摘要翻译： 将受污染的水，如生产的水，破裂的回流水和其他受污染的水从工业源转化为新鲜的，不污染的或饮用水的系统包括登记和核实单位，用于登记进水负荷并核实其内容; 用于临时隔离每个负载的接收系统; 用于产生均质水源的均衡盆; 电凝器单元，其中电压，电流，脉冲频率和施加时间中的一个或多个可变并由一个或多个电导率传感器控制; pH传感器; 水平传感器; 用于除去有机物的超滤单元; 纳滤单元; 反渗透单元和电渗透单元。 水转化后残留的加工浓缩物通过正向渗透装置脱水。

公开(公告)号：US09085477B2

公开(公告)日：2015-07-21

申请号：US13166928

申请日：2011-06-23

申请人： Kashi Banerjee ,  Charles D. Blumenschein ,  Robert G. Cook ,  John C. Schrader

发明人： Kashi Banerjee ,  Charles D. Blumenschein ,  Robert G. Cook ,  John C. Schrader

IPC分类号： B01D21/00 ,  C02F1/52 ,  B01D11/02 ,  C02F1/44 ,  C02F101/10 ,  C02F103/10 ,  C02F103/16 ,  C02F103/36 ,  C02F1/66 ,  C02F5/06

CPC分类号： C02F1/5245 ,  C02F1/44 ,  C02F1/66 ,  C02F5/06 ,  C02F2101/101 ,  C02F2101/40 ,  C02F2103/10 ,  C02F2103/16 ,  C02F2103/365 ,  C02F2301/046 ,  C02F2303/22 ,  C02F2305/12

摘要： A method of reducing a sulfate concentration in wastewater comprises directing the wastewater stream to a precipitation reactor and mixing the wastewater stream with a calcium source and a calcium salt seed material to precipitate calcium sulfate. The precipitated calcium sulfate is then separated from a treated effluent and directed to a settling tank where the precipitated calcium sulfate is separated into heavier calcium sulfate precipitants and lighter calcium sulfate precipitants. The heavier calcium sulfate precipitants and the lighter calcium sulfate precipitants are separately recirculated to the precipitation reactor. A predetermined mass ratio of solids is maintained in the precipitation reactor.

摘要翻译： 降低废水中硫酸盐浓度的方法包括将废水流引导至沉淀反应器，并将废水与钙源和钙盐种子材料混合以沉淀硫酸钙。 然后将沉淀的硫酸钙与经处理的流出物分离，并引导至沉淀槽，其中将沉淀的硫酸钙分离成较重的硫酸钙沉淀剂和较轻的硫酸钙沉淀剂。 较重的硫酸钙沉淀剂和较轻的硫酸钙沉淀剂分别再循环至沉淀反应器。 在沉淀反应器中保持固体的预定质量比。

公开(公告)号：US08899326B2

公开(公告)日：2014-12-02

申请号：US13185797

申请日：2011-07-19

申请人： Meenatchinathan Vasudevan

发明人： Meenatchinathan Vasudevan

IPC分类号： E21B43/24 ,  F22B35/08 ,  F22B29/02 ,  F22B29/06 ,  C02F9/00 ,  C02F1/20 ,  C02F1/44 ,  C02F1/42 ,  C02F5/06 ,  C02F1/00 ,  C02F1/24 ,  C02F1/60 ,  C02F1/66 ,  C02F1/68 ,  C02F101/32 ,  C02F1/469 ,  C02F1/04 ,  C02F103/36

CPC分类号： C02F9/00 ,  C02F1/004 ,  C02F1/048 ,  C02F1/20 ,  C02F1/24 ,  C02F1/44 ,  C02F1/4695 ,  C02F1/60 ,  C02F1/66 ,  C02F1/681 ,  C02F5/06 ,  C02F2001/425 ,  C02F2001/427 ,  C02F2101/32 ,  C02F2103/10 ,  C02F2103/365 ,  C02F2301/046 ,  C02F2301/10 ,  C02F2303/20 ,  E21B43/2406 ,  F22B29/02 ,  F22B29/064 ,  F22B35/08

摘要： An oil recovery process entails recovering an oil-water mixture from an oil bearing formation and separating the oil-water mixture to produce an oil product and produced water. The produced water includes suspended and dissolved solids and is subjected to treatment which removes suspended and dissolved solids therefrom. The treated water is then directed to a forced circulation steam generator that includes a furnace having a burner, water cooled walls and an evaporator unit. The treated water is pumped through the water cooled walls and the evaporator unit. The water passing through the water cooled walls and evaporator unit are heated to produce approximately 10% to approximately 30% quality steam in both the water cooled walls and the evaporator unit. The steam is collected and separated from a water-steam mixture to produce high quality steam, on the order of 95% or greater quality steam. This steam constitutes injection steam which is injected into an injection well to facilitate the recovery of the oil-water mixture.

摘要翻译： 油回收过程需要从含油地层中回收油 - 水混合物并分离油 - 水混合物以产生油产物并产生水。 产生的水包括悬浮和溶解的固体，并进行处理，从中除去悬浮和溶解的固体。 处理过的水然后被引导到强制循环蒸汽发生器，其包括具有燃烧器，水冷壁和蒸发器单元的炉。 经处理的水被泵送通过水冷壁和蒸发器单元。 通过水冷壁和蒸发器单元的水被加热以在水冷壁和蒸发器单元中产生大约10％至大约30％的质量蒸汽。 将蒸汽从水蒸气混合物中收集并分离，以产生高质量蒸汽的高质量蒸汽，其量为95％或更高。 该蒸汽构成注射蒸汽，其被注入注入井以便于油 - 水混合物的回收。

公开(公告)号：US20130098842A1

公开(公告)日：2013-04-25

申请号：US13279372

申请日：2011-10-24

申请人： MOHAMMAD AMIRI

发明人： MOHAMMAD AMIRI

IPC分类号： C02F5/06 ,  G01R27/08

CPC分类号： G01N33/1853 ,  C02F5/06

摘要： The various embodiments herein provide a method for evaluating a performance of lime softening clarifiers. The method is based on electrical conductivity (EC) measurement of the treated water samples after addition of carbon dioxide. If EC of the treated water after carbon dioxide gas addition is lower than EC of the treated water, this shows an abnormal function of softening process and the lime dosage must be decreased. If EC of the treated water after carbon dioxide gas addition is higher than EC of the treated water, then the lime dosage is not enough and lime dosage must be increased. If EC of the treated water after carbon dioxide gas addition is roughly equal to EC of the said treated water, then the lime dosage is optimum and clarifier works in optimum condition.

摘要翻译： 本文的各种实施方案提供了评估石灰软化澄清池的性能的方法。 该方法基于加入二氧化碳后处理水样品的电导率（EC）测量。 如果加入二氧化碳后处理水的EC低于处理水的EC，则显示出软化过程的异常功能，并且必须降低石灰用量。 如果加入二氧化碳后处理水的EC高于处理水的EC，则石灰用量不足，石灰用量必须增加。 如果二氧化碳气体加入后的处理水的EC大致等于所述处理水的EC，则石灰用量是最佳的，澄清剂在最佳条件下起作用。

公开(公告)号：US07815804B2

公开(公告)日：2010-10-19

申请号：US11609659

申请日：2006-12-12

申请人： LNSP Nagghappan

发明人： LNSP Nagghappan

IPC分类号： C02F5/06 ,  C02F1/42 ,  C02F1/44 ,  C02F1/52

CPC分类号： C02F9/00 ,  B01D61/022 ,  B01D61/025 ,  B01D2317/025 ,  C02F1/20 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/5236 ,  C02F1/56 ,  C02F1/66 ,  C02F5/06 ,  C02F2103/10 ,  C02F2103/365 ,  C02F2209/06

摘要： A method or process for treating wastewater containing high organics, silica, boron, hardness, and suspended and dissolved solids. The method includes degasifying the wastewater for the removal of dissolved gases and thereafter chemically softening the wastewater. After the chemical softening step, the wastewater is directed through a media filter or membrane which removes additional solids and precipitants. Thereafter the wastewater is directed through a sodium ion exchange that further softens the wastewater. The effluent from the ion exchange is directed through a cartridge filter and the effluent from the cartridge filter is directed through one or more reverse osmosis units. At a selected phase of the process, prior to the wastewater reaching the reverse osmosis unit or units, the pH of the wastewater is raised and maintained such that the pH of the wastewater reaching a reverse osmosis unit is at a pH greater than 10.5.

摘要翻译： 一种用于处理含有高有机物，二氧化硅，硼，硬度和悬浮和溶解固体的废水的方法或方法。 该方法包括使废水脱气以除去溶解的气体，然后化学软化废水。 在化学软化步骤之后，废水被引导通过介质过滤器或膜，其除去附加的固体和沉淀剂。 此后，废水通过钠离子交换器进一步软化废水。 来自离子交换的流出物被引导通过滤筒过滤器，并且来自筒式过滤器的流出物被引导通过一个或多个反渗透单元。 在该过程的选定阶段，在废水到达反渗透单元或单元之前，废水的pH值升高并维持，使得达到反渗透单元的废水的pH值大于10.5。