公开(公告)号：US20230407887A1

公开(公告)日：2023-12-21

申请号：US18239674

申请日：2023-08-29

申请人： Natural Ocean Well Co.

发明人： Robert A. Bergstrom

IPC分类号： F04F1/08 ,  B01D61/02 ,  B01D61/08 ,  B01D61/10 ,  B01D65/02 ,  B01D65/08 ,  C02F1/00 ,  C02F1/44 ,  C02F1/76 ,  C02F1/78

CPC分类号： F04F1/08 ,  B01D61/025 ,  B01D61/08 ,  B01D61/10 ,  B01D65/02 ,  B01D65/08 ,  C02F1/001 ,  C02F1/441 ,  C02F1/76 ,  C02F1/78 ,  B01D2311/04 ,  B01D2311/08 ,  B01D2311/20 ,  B01D2311/2661 ,  B01D2313/12 ,  B01D2313/243 ,  B01D2315/06 ,  B01D2317/04 ,  B01D2321/04 ,  C02F2103/007

摘要： A submerged offshore reverse osmosis desalination apparatus and method uses desalinated product water from the apparatus and an onshore cooler or heat exchanger to provide or improve the cooling of an onshore Rankine Cycle heat engine.

公开(公告)号：US20180229184A1

公开(公告)日：2018-08-16

申请号：US15751753

申请日：2015-09-17

申请人： FORWARD WATER TECHNOLOGIES

发明人： Rui RESENDES ,  Amy Marie HOLLAND ,  Timothy James CLARK ,  Brian Ernest MARIAMPILLAI ,  Robert Harold Jean DUMONT

IPC分类号： B01D61/00 ,  C02F1/44 ,  B01D1/20 ,  B01D1/14

CPC分类号： B01D61/005 ,  B01D1/14 ,  B01D1/20 ,  B01D61/002 ,  B01D63/02 ,  B01D2311/04 ,  B01D2311/06 ,  B01D2311/10 ,  B01D2311/18 ,  B01D2311/25 ,  B01D2311/2661 ,  B01D2311/2673 ,  C02F1/445 ,  C02F2103/10

摘要： The present application provides a switchable forward osmosis system, and processes thereof. In particular, this application provides a process for treating an aqueous feed stream, comprising: forward osmosis using an aqueous draw solution having a draw solute concentration of ≥20 wt %, the draw solute comprising ionized trimethylamine and a counter ion; wherein, the feed stream: (i) comprises ≥5 wt % total dissolved solids; (ii) is at a temperature of ≤20° C.; (iii) is at a temperature between ≥30° C.-≤60° C.; (iv) has an acidic pH or a basic pH; (v) comprises organic content; (vi) comprises suspended solids; (vii) or any combination of two or more of i)-v). Also provided herein are the related system and draw solution for performing the process, and various uses thereof for treating typically difficult to dewater feed streams.

公开(公告)号：US20170128887A1

公开(公告)日：2017-05-11

申请号：US15318463

申请日：2015-06-26

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Hideki KASHIHARA

IPC分类号： B01D63/02 ,  B01F5/04 ,  B01F3/04 ,  B01D65/02 ,  C02F1/44

CPC分类号： B01D63/02 ,  B01D17/047 ,  B01D17/085 ,  B01D65/02 ,  B01D2311/04 ,  B01D2311/06 ,  B01D2311/26 ,  B01D2311/2661 ,  B01D2311/2665 ,  B01D2313/20 ,  B01D2313/24 ,  B01D2313/26 ,  B01D2313/50 ,  B01D2315/10 ,  B01D2319/04 ,  B01D2321/04 ,  B01F3/04503 ,  B01F5/04 ,  C02F1/44 ,  C02F2101/32 ,  C02F2301/046 ,  C02F2303/16 ,  B01D2311/25

摘要： An object of the present invention is to provide a water treatment system in which explosions can be prevented even when filtering water to be treated that is able to generate flammable gas. A water treatment system according to an embodiment of the present invention includes a water-to-be-treated tank which stores water to be treated, a crossflow-type filtration membrane module which filters the water to be treated, a supply passage through which the water to be treated is supplied to the filtration membrane module from the water-to-be-treated tank by using a supply pump, and a recirculation passage through which the water to be treated is recirculated from the filtration membrane module to the water-to-be-treated tank. The supply passage is provided with an aspirator which mixes a gas with the supplied water to be treated, the gas being recirculated through the recirculation passage to the water-to-be-treated tank together with the water to be treated. The water-to-be-treated tank has an upper space provided above the liquid surface of the stored water to be treated, the upper space being hermetically filled with an inert gas. The water-to-be-treated tank is further provided with a gas transport passage through which the inert gas is supplied from the upper space to the aspirator.

公开(公告)号：US20150136697A1

公开(公告)日：2015-05-21

申请号：US14541836

申请日：2014-11-14

申请人： TOYO ENGINEERING CORPORATION

发明人： Masaaki SAKURAI ,  Kenji SAKAI ,  Hidekiyo HARA ,  Kanako ABE ,  Takashi NOMURA

IPC分类号： C02F1/44 ,  B01D63/02 ,  B01D63/04

CPC分类号： C02F1/444 ,  B01D63/04 ,  B01D63/06 ,  B01D69/02 ,  B01D71/36 ,  B01D2311/2661 ,  B01D2313/56 ,  B01D2317/04 ,  B01D2317/06 ,  B01D2319/04 ,  C02F1/24 ,  C02F1/40 ,  C02F1/44 ,  C02F1/441 ,  C02F1/442 ,  C02F2101/32 ,  C02F2103/10 ,  C02F2103/365 ,  C02F2303/16 ,  Y10T29/49721 ,  Y10T29/4973

摘要： An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism; the filtration membrane unit containing a filtration membrane module and a returning mechanism, the filtration membrane module for performing filtration in the state of allowing the module to be immersed into the oil-containing water; the filtration membrane module having an elongated filtration membrane with an opening portion, the opening portion of the filtration membrane being fixed to one end of the filtration membrane module, the opening portion of the filtration membrane being communicatively connected to the returning mechanism; the returning mechanism being extended along the filtration membrane toward an end on a side opposite to an end portion having the opening portion thereof, the returning mechanism being communicatively connected with the discharge mechanism.

摘要翻译： 一种用于从含油水中除去油的油水分离器，包括容器，过滤膜单元和排出机构; 所述过滤膜单元包含过滤膜组件和返回机构，所述过滤膜组件在使所述组件浸入所述含油水中的状态下进行过滤; 所述过滤膜组件具有带有开口部的细长过滤膜，所述过滤膜的开口部固定在所述过滤膜组件的一端，所述过滤膜的开口部与所述返回机构连通地连接; 返回机构沿着过滤膜向与其开口部的端部相反的一侧的端部延伸，返回机构与排出机构连通地连接。

公开(公告)号：US20060091075A1

公开(公告)日：2006-05-04

申请号：US11302271

申请日：2005-12-14

申请人： Pierre Cote ,  Hidayat Husain

发明人： Pierre Cote ,  Hidayat Husain

IPC分类号： B01D65/02

CPC分类号： B01D65/08 ,  B01D61/142 ,  B01D61/145 ,  B01D61/147 ,  B01D61/16 ,  B01D61/18 ,  B01D61/22 ,  B01D63/02 ,  B01D63/043 ,  B01D65/02 ,  B01D2311/04 ,  B01D2315/06 ,  B01D2321/04 ,  B01D2321/16 ,  B01D2321/185 ,  B01D2321/2066 ,  B01D2321/2083 ,  C02F1/444 ,  C02F3/1273 ,  Y02W10/15 ,  B01D2311/2649 ,  B01D2311/14 ,  B01D2311/10 ,  B01D2311/2661

摘要： A process for operating filtering membranes submerged in a tank involves, in one aspect, periodically deconcentrating the tank by partially emptying and refilling the tank with fresh water. The emptying and refilling may be performed generally simultaneously or sequentially. In another embodiment, the membrane modules are arranged in a series of filtration zones between a feed water inlet and a retentate outlet of a tank and the zone adjacent the outlet is emptied and refilled.

公开(公告)号：US06805806B2

公开(公告)日：2004-10-19

申请号：US10317018

申请日：2002-12-11

申请人： Johnny Arnaud

发明人： Johnny Arnaud

IPC分类号： B01D2126

CPC分类号： B01D61/145 ,  B01D21/2433 ,  B01D21/245 ,  B01D21/26 ,  B01D21/267 ,  B01D21/305 ,  B01D21/34 ,  B01D61/16 ,  B01D63/06 ,  B01D63/16 ,  B01D2311/04 ,  B01D2313/36 ,  B01D2315/02 ,  B03D1/028 ,  B03D1/1418 ,  B03D1/1431 ,  C02F1/38 ,  C02F1/444 ,  C02F3/1268 ,  E21B43/122 ,  E21B43/128 ,  E21B43/129 ,  E21B43/166 ,  E21B43/34 ,  Y02W10/15 ,  B01D2311/16 ,  B01D2311/2661 ,  B01D2311/2688

摘要： Methods and apparatus employing membrane filtration in biodegradation processes for treatment of wastewater are described. A bioreactor system is described having an equalization system, a membrane bioreactor system, and a controller. Aeration systems for a membrane bioreactor, such as a mixer, and an ultrafilter subsystem are also described, as is a rotary membrane ultrafilter.

摘要翻译： 描述了在用于处理废水的生物降解过程中使用膜过滤的方法和装置。 描述了具有均衡系统，膜生物反应器系统和控制器的生物反应器系统。 还描述了用于膜生物反应器（例如混合器）和超滤器子系统的曝气系统，旋转膜超滤器也是如此。

公开(公告)号：US06733675B2

公开(公告)日：2004-05-11

申请号：US09907762

申请日：2001-07-18

申请人： Masaaki Ando ,  Satoru Ishihara ,  Katsumi Ishii

发明人： Masaaki Ando ,  Satoru Ishihara ,  Katsumi Ishii

IPC分类号： C02F144

CPC分类号： C02F1/444 ,  B01D61/142 ,  B01D61/145 ,  B01D61/16 ,  B01D63/10 ,  B01D63/12 ,  B01D65/02 ,  B01D65/022 ,  B01D67/0011 ,  B01D69/10 ,  B01D71/68 ,  B01D2311/04 ,  B01D2321/04 ,  B01D2321/16 ,  B01D2321/28 ,  B01D2325/24 ,  B01D2311/12 ,  B01D2311/14 ,  B01D2311/2642 ,  B01D2311/2661

摘要： A spiral wound membrane module comprises a spiral wound membrane element including a separation membrane having high back pressure strength. In filtration running, raw water introduced from a raw water inlet of a pressure vessel is subjected to dead end filtration, and permeate is taken out from a permeate outlet. In washing, wash water containing a chemical having a contaminant separating function is introduced from an end of a water collection pipe through the permeate outlet for performing back wash reverse filtration with a back pressure of 0.05 to 0.3 MPa. The filtration running is temporarily stopped for maintaining the pressure vessel in a state sealed with the raw water and the permeate for a prescribed time. Thus, contaminants adhering to the membrane surface of the spiral wound membrane element are separated. A treatment system is formed by connecting units comprising spiral wound membrane modules in parallel with each other. In the treatment system, one of the units is subjected to filtration running when another one of the units is washed. In washing, back wash reverse filtration and chemical soaking are performed.

摘要翻译： 螺旋缠绕膜组件包括螺旋缠绕膜元件，其包括具有高背压强度的分离膜。 在过滤运行中，将从压力容器的原水入口引入的原水进行死端过滤，从渗透物出口取出渗透物。 在洗涤中，含有具有污染物分离功能的化学品的洗涤水从采水管的一端通过渗透物出口引入，以进行背压为0.05至0.3MPa的反冲洗反向过滤。 暂时停止过滤运转，以将压力容器保持在用原水和渗透物密封规定时间的状态。 因此，分离附着在螺旋卷绕膜元件的膜表面的污染物。 通过将包括螺旋缠绕膜组件的单元彼此并联连接形成处理系统。 在处理系统中，其中一个单元在洗涤另一个单元时进行过滤运行。 在洗涤中，进行背面洗涤反向过滤和化学浸泡。

公开(公告)号：US20030075502A1

公开(公告)日：2003-04-24

申请号：US10305103

申请日：2002-11-27

申请人： Great Circle Technologies, Inc., a Delaware corporation

发明人： Steven B. Mullerheim

IPC分类号： C02F003/00

CPC分类号： C02F1/24 ,  B01D61/025 ,  B01D61/145 ,  B01D61/147 ,  B01D61/16 ,  B01D2311/04 ,  C02F1/001 ,  C02F1/32 ,  C02F1/444 ,  C02F1/72 ,  C02F1/78 ,  C02F2303/16 ,  B01D2311/2619 ,  B01D2311/2661

摘要： Wastewater can be treated using a combination of a settleable solids separator, such as a vortex separator, and a gas floatation separation system.

公开(公告)号：US09266762B2

公开(公告)日：2016-02-23

申请号：US13254881

申请日：2010-09-30

申请人： Sijing Wang ,  Yanrong Zhu ,  Gaorong He

发明人： Sijing Wang ,  Yanrong Zhu ,  Gaorong He

IPC分类号： B01D61/04 ,  B01D61/12 ,  C02F1/44 ,  C02F9/00 ,  B01D61/02 ,  B01D61/10 ,  C02F1/52 ,  C02F1/54 ,  C02F1/56 ,  C02F1/66 ,  C02F5/08

CPC分类号： C02F9/00 ,  B01D61/022 ,  B01D61/025 ,  B01D61/027 ,  B01D61/04 ,  B01D2311/04 ,  B01D2311/08 ,  B01D2311/18 ,  B01D2311/2642 ,  B01D2311/2661 ,  B01D2317/04 ,  C02F1/441 ,  C02F1/442 ,  C02F1/444 ,  C02F1/5236 ,  C02F1/54 ,  C02F1/56 ,  C02F1/66 ,  C02F5/08

摘要： A membrane filtration process includes pretreating an influent solution to remove suspended solids, to produce a pretreated solution. pH of the pretreated solution is adjusted to at least 8.3 or lower by injecting CO2 into the pretreated solution, to produce a conditioned solution. Injecting CO2 also serves to supplement bicarbonate in the conditioned solution. The conditioned solution is flowed through a membrane filtration unit, to produce a permeate solution and a retentate solution. The membrane filtration unit comprises reverse osmosis membranes or nanofiltration membranes, or both. The retentate solution is then treated to cause precipitation, to produce a supernatant solution and a reject solution. At least a portion of the supernatant solution is recirculated by combining it with the influent solution prior to the step of pretreating.

摘要翻译： 膜过滤方法包括预处理流入溶液以除去悬浮固体，以产生预处理的溶液。 通过将CO 2注入预处理溶液中将预处理溶液的pH调节至至少8.3或更低，以产生调节溶液。 注入二氧化碳也用于补充调理溶液中的碳酸氢盐。 将调理的溶液流过膜过滤单元，以产生渗透液和渗余物溶液。 膜过滤单元包括反渗透膜或纳滤膜，或两者兼有。 然后处理渗余物溶液以引起沉淀，产生上清液和拒绝溶液。 在预处理步骤之前，将至少一部分上清液再循环通过与流入液组合。

公开(公告)号：US20140054173A1

公开(公告)日：2014-02-27

申请号：US13980021

申请日：2012-01-13

申请人： Aage Bjorn Andersen

发明人： Aage Bjorn Andersen

IPC分类号： C02F1/469 ,  B01D61/42

CPC分类号： C02F1/4693 ,  B01D61/422 ,  B01D61/44 ,  B01D61/50 ,  B01D61/54 ,  B01D63/085 ,  B01D2311/04 ,  B01D2311/10 ,  B01D2311/103 ,  B01D2311/2649 ,  B01D2311/2661 ,  B01D2313/08 ,  B01D2313/105 ,  C02F2103/008 ,  C02F2103/08 ,  C02F2201/4611 ,  C02F2201/46115 ,  C02F2301/022

摘要： An electrodialysis unit 8 comprises a cathode 68, an anode 70, a membrane 71 between the cathode 68 and the anode 70, a cathode flow path 72 for water flow along the membrane 71 on the cathode side, an anode flow path 74 for water flow along the membrane 71 on the anode side, and a reaction zone formed between the membrane 71 and the cathode 68 where the cathode 68 faces the anode 70, wherein the cathode flow path 72 is arranged for laminar flow in the reaction zone and wherein the electrodialysis unit 8 comprises flow conditioning elements 64 arranged to promote laminar flow in the incoming water flow to the cathode flow path 72.

摘要翻译： 电渗析单元8包括阴极68，阳极70，阴极68和阳极70之间的膜71，阴极侧沿着膜71的水流的阴极流路72，水流的阳极流路74 沿着阳极侧的膜71，以及在膜71和阴极68之间形成的阴极68面对阳极70的反应区，其中阴极流路72布置成在反应区中层流，并且其中电渗析 单元8包括流动调节元件64，其布置成促进进入阴极流动路径72的进入水流中的层流。