公开(公告)号：US20240342656A1

公开(公告)日：2024-10-17

申请号：US18632858

申请日：2024-04-11

申请人： THE TEXAS A&M UNIVERSITY SYSTEM

发明人： Shuza BINZAID ,  Kazi Meharajul KBIR

IPC分类号： B01D61/08 ,  B01D61/02 ,  B01D61/12 ,  C02F1/00 ,  C02F1/44 ,  C02F103/00

CPC分类号： B01D61/08 ,  B01D61/025 ,  B01D61/12 ,  C02F1/008 ,  C02F1/441 ,  B01D2313/243 ,  B01D2313/367 ,  B01D2313/60 ,  C02F2103/001 ,  C02F2201/009 ,  C02F2209/03 ,  C02F2209/10 ,  C02F2209/42

摘要： The present disclosure provides a water filtration system that meets the need for production of clean, potable water. In particular, described herein is a system comprising a Pressure Energy Transformer (PET), a Contactless Reverse Osmosis (CRO) pump, and an intelligent microcontroller-based system that provides contactless energy transfer for the production of clean drinking water.

公开(公告)号：US12116293B2

公开(公告)日：2024-10-15

申请号：US17042252

申请日：2019-03-29

申请人： BWT Holding GmbH

发明人： Jürgen Johann ,  Mark Fink ,  Mathias Schwaiger ,  Werner Kues ,  Lorenz Haschka

IPC分类号： C02F1/44 ,  B01D61/02 ,  B01D61/08 ,  B01D61/10 ,  B01D65/02 ,  B01D65/08 ,  C02F1/50

CPC分类号： C02F1/441 ,  B01D61/025 ,  B01D61/081 ,  B01D61/10 ,  B01D65/02 ,  B01D65/08 ,  C02F1/50 ,  B01D2311/06 ,  B01D2311/12 ,  B01D2311/2626 ,  B01D2311/2692 ,  B01D2313/18 ,  B01D2313/24 ,  B01D2321/04 ,  B01D2321/12 ,  C02F2201/005 ,  C02F2201/006 ,  C02F2303/04 ,  C02F2303/16 ,  C02F2303/185 ,  C02F2303/22 ,  C02F2307/06 ,  C02F2307/10

摘要： In order to improve the lifespan of the semi-permeable membrane or the yield of the reverse osmosis system in the treatment of drinking water by means of reverse osmosis, the invention provides a device for treating drinking water with at least one reverse osmosis vessel which is divided into at least two chambers by at least one semi-permeable membrane, wherein a first chamber has an inlet for the water to be treated and an outlet for the concentrate, and the second chamber has an outlet for the treated water, wherein the device comprises at least one pressure vessel which is connected to the outlet for the treated water via a line, wherein the device is designed in such a way that, in an idle state, treated water flows out of the pressure vessel, through the semi-permeable membrane and into the first chamber.

公开(公告)号：US20240335791A1

公开(公告)日：2024-10-10

申请号：US18625360

申请日：2024-04-03

申请人： B. Braun Avitum AG

发明人： Nino Lieb ,  Philipp Odernheimer ,  Jonas Giesa ,  Stephan Krietemeyer

IPC分类号： B01D61/02 ,  B01D61/08

CPC分类号： B01D61/026 ,  B01D61/08 ,  B01D2311/16 ,  B01D2311/25 ,  B01D2313/083 ,  B01D2313/18 ,  B01D2313/243 ,  B01D2313/54 ,  B01D2313/60 ,  B01D2313/70 ,  B01D2313/903 ,  B01D2317/02

摘要： A membrane filtration system, in particular for reverse osmosis, includes a plurality of stages. Each stage has at least one pump and one filter membrane. The stages are hydraulically interconnected in sequence by connecting lines. The system also includes a bypass line for each stage for diverting liquid flow around the stage. At least one bypass valve blocks the respective bypass line in the closed state. The system further includes a control and regulating unit that can actuate the respective bypass valve.

公开(公告)号：US20240308894A1

公开(公告)日：2024-09-19

申请号：US18606961

申请日：2024-03-15

申请人： Dehlsen Associates of the Pacific Limited

发明人： James George Purnell Dehlsen ,  Peter Damon Stricker ,  Joseph E. Zuback

IPC分类号： C02F9/00 ,  B01D61/02 ,  B01D61/04 ,  B01D61/08 ,  B01D65/02 ,  C02F1/00 ,  C02F1/32 ,  C02F1/44 ,  C02F1/68 ,  C02F103/08

CPC分类号： C02F9/00 ,  B01D61/026 ,  B01D61/04 ,  B01D61/08 ,  B01D65/02 ,  C02F1/008 ,  B01D2313/243 ,  B01D2313/54 ,  B01D2313/701 ,  B01D2317/02 ,  B01D2317/06 ,  B01D2321/04 ,  C02F1/001 ,  C02F1/32 ,  C02F1/441 ,  C02F1/68 ,  C02F2103/08 ,  C02F2201/007 ,  C02F2209/006 ,  C02F2209/02 ,  C02F2209/03 ,  C02F2209/05 ,  C02F2209/11 ,  C02F2209/40 ,  C02F2209/42 ,  C02F2301/08 ,  C02F2303/04 ,  C02F2303/16

摘要： A modular distributed desalination system including a desalination buoy interconnected to a landside post-treatment station. The desalination buoy further includes a dynamic ballast system, a reverse osmosis system, an integral media filter, and intake screen, and a brine diffuser system.

公开(公告)号：US20240278178A1

公开(公告)日：2024-08-22

申请号：US18649157

申请日：2024-04-29

申请人： Danfoss A/S

发明人： Lars Bjarne Hilbrecht ,  Georg Herborg Enevoldsen

IPC分类号： B01D61/06 ,  B01D61/02 ,  B01D61/08 ,  B01D61/12 ,  B01D61/58

CPC分类号： B01D61/06 ,  B01D61/025 ,  B01D61/026 ,  B01D61/08 ,  B01D61/12 ,  B01D61/58 ,  B01D2313/243 ,  B01D2313/246 ,  B01D2317/022

摘要： A reverse osmosis (1) system having a first membrane unit (2) and at least a second membrane unit (3), the membrane units (2, 3) forming a chain of membrane units, the first membrane unit (2) having a first membrane (4) separating a first feed chamber (5) and a first permeate chamber (6), a first inlet (7) connected to the first feed chamber (5), a first permeate outlet (9) connected to the first permeate chamber (6), and a first concentrate outlet (8) connected to the first feed chamber (5), the second membrane unit (3) having a second membrane (10) separating a second feed chamber (11) and a second permeate chamber (12), a second inlet (13) connected to the second feed chamber (11), a second permeate outlet (15) connected to the second permeate chamber (12), and a second concentrate outlet (14) connected to the second feed chamber (11), wherein the concentrate outlet (8) of a membrane unit (2) in the chain of membrane units is connected to an inlet (13) of a following membrane unit (3) and a concentrate outlet (14) of at least one membrane unit (3) downstream the first membrane unit (2) in the chain of membrane units is connected to a hydraulic motor (18). In such a system the energy consumption should be optimized. To this end the hydraulic motor (18) is operatively connected to a first electric machine (21).

公开(公告)号：US12065370B2

公开(公告)日：2024-08-20

申请号：US17839863

申请日：2022-06-14

申请人： Battelle Memorial Institute

发明人： Kurt Blohm ,  Richard Peterson ,  Ann E. Lane ,  Slawomir Winecki ,  Darwin Argumedo

IPC分类号： C02F9/00 ,  B01D61/00 ,  B01D61/02 ,  B01D61/04 ,  B01D61/06 ,  B01D61/08 ,  B01D61/58 ,  C02F1/36 ,  C02F1/44 ,  C02F1/469 ,  C02F103/08 ,  F03G7/00

CPC分类号： C02F9/00 ,  B01D61/002 ,  B01D61/025 ,  B01D61/026 ,  B01D61/04 ,  B01D61/06 ,  B01D61/08 ,  B01D61/58 ,  B01D2311/04 ,  B01D2311/06 ,  B01D2311/08 ,  B01D2311/2523 ,  B01D2311/2684 ,  B01D2313/243 ,  B01D2313/246 ,  B01D2315/10 ,  B01D2317/02 ,  B01D2317/025 ,  B01D2319/04 ,  C02F1/36 ,  C02F1/441 ,  C02F1/445 ,  C02F1/4691 ,  C02F2103/08 ,  C02F2301/046 ,  C02F2301/08 ,  C02F2303/10 ,  F03G7/005 ,  B01D2311/06 ,  B01D2311/04 ,  B01D2311/08 ,  B01D2311/25

摘要： Systems and processes for purifying and concentrating a liquid feed stream are disclosed. In the systems, the concentrated liquid output from the high pressure side of a reverse osmosis stage is used as the draw solution in the low pressure side of the reverse osmosis stage in a configuration called osmotically assisted reverse osmosis. This reduces the osmotic pressure differential across the membrane, permitting high solute concentrations to be obtained, hastening the purification of the liquid. Reduced system pressures are also obtained by arranging multiple osmotically assisted reverse osmosis stages in a cross-current arrangement. Overall system energy consumption is reduced compared to conventional thermal processes for high concentration streams.

公开(公告)号：US20240139681A1

公开(公告)日：2024-05-02

申请号：US18385527

申请日：2023-10-31

申请人： Trevi Systems Inc.

发明人： Qiang WEI ,  Elliott BAKER ,  John WEBLEY ,  Gary CARMIGNANI

IPC分类号： B01D61/02 ,  B01D61/08 ,  B01D63/04 ,  B01D63/10 ,  B01D69/06 ,  B01D69/08 ,  B01D71/06 ,  C02F1/44

CPC分类号： B01D61/025 ,  B01D61/08 ,  B01D63/043 ,  B01D63/103 ,  B01D69/06 ,  B01D69/08 ,  B01D71/06 ,  C02F1/441 ,  B01D2313/04 ,  B01D2313/146 ,  B01D2313/24 ,  C02F2103/08

摘要： Membranes and filtration modules for producing a concentrated feed stream and a diluted feed stream during operation in a water purification or wastewater treatment system. Filtration modules are provided that include a semipermeable membrane having a first side and a second side, the first side configured to receive a first feed solution stream from a first feed solution source and the second side configured to receive a second feed solution stream from a second feed solution source. The semipermeable membrane may be configured to operate at a hydrostatic pressure on the second side of the membrane from about 1% to about 40% of the hydrostatic pressure on the first side of the membrane, and may in some cases exhibit a salt rejection of from about 60 percent to about 90 percent during operation.

公开(公告)号：US11951444B2

公开(公告)日：2024-04-09

申请号：US17602236

申请日：2020-04-08

申请人： Bluewater Sweden AB

发明人： Peter Hagqvist

IPC分类号： B01D61/02 ,  B01D61/08 ,  B01D61/10 ,  C02F1/44

CPC分类号： B01D61/08 ,  B01D61/025 ,  B01D61/10 ,  C02F1/441 ,  B01D2311/2523 ,  B01D2313/16 ,  B01D2313/243 ,  B01D2313/90 ,  C02F2301/046

摘要： A water filter unit for purifying water fed to the water filter unit. The unit includes a containment defined by a wall section, first and second end sections, wherein the wall section is attached to the first end section and the second end section; a water inlet arranged in the first or second end section through which the water is fed into the containment; a filter membrane arranged in the containment such that at least part of the water is fed through the filter membrane; and a first water outlet for filtered water from the membrane. The unit further includes an injector pump arranged to create an increased flow velocity trough the injector pump of the water fed to the filter membrane, and the injector pump is furthermore arranged to receive unfiltered water not fed through the membrane and recirculate the unfiltered water within the containment.

公开(公告)号：US20240091712A1

公开(公告)日：2024-03-21

申请号：US17767814

申请日：2020-10-09

申请人： NANYANG TECHNOLOGICAL UNIVERSITY

发明人： William Bernard KRANTZ ,  Tzyy Haur CHONG

IPC分类号： B01D63/16 ,  B01D61/02 ,  B01D61/08 ,  B01D63/02 ,  B01D63/08 ,  C02F1/38 ,  C02F1/44

CPC分类号： B01D63/16 ,  B01D61/025 ,  B01D61/08 ,  B01D63/02 ,  B01D63/082 ,  C02F1/38 ,  C02F1/441 ,  B01D2313/12 ,  B01D2313/143 ,  B01D2313/146 ,  B01D2313/243 ,  B01D2315/02 ,  C02F2103/08 ,  C02F2303/10

摘要： A reverse osmosis apparatus including a reverse osmosis unit having a housing; a cylindrical drum rotatably disposed inside the housing wherein a lateral gap therebetween defines a intervening chamber, and including an outer cylindrical wall and an inner cylindrical wall to define an inner cylindrical feed chamber and an outer annular separation chamber therewithin; and at least one channeling structure defining a permeate channel extending radially from the inner cylindrical wall to the outer cylindrical wall, wherein a first channel end is closed and a second channel end opens into the intervening chamber. The at least one channeling structure including a membrane element extending lengthwise forming a semi-permeable interface between the permeate channel and a feed-flow-region in fluid communication with the inner cylindrical feed chamber. The apparatus including a pump to pressurize the inner cylindrical feed chamber, and a motor to rotate the cylindrical drum for generating centrifugal force.

公开(公告)号：US11897792B2

公开(公告)日：2024-02-13

申请号：US17653081

申请日：2022-03-01

申请人： Pentair Filtration Solutions, LLC

发明人： Manasa Sambi ,  Blake Brewer

IPC分类号： C02F1/44 ,  C02F1/00 ,  B01D61/12 ,  B01D61/02 ,  B01D61/08 ,  B01D61/04

CPC分类号： C02F1/441 ,  B01D61/12 ,  C02F1/008 ,  B01D61/025 ,  B01D61/04 ,  B01D61/08 ,  B01D2311/04 ,  B01D2311/08 ,  B01D2311/25 ,  B01D2313/18 ,  B01D2319/025 ,  B01D2319/06 ,  C02F2201/005 ,  C02F2201/006 ,  C02F2209/03 ,  C02F2209/10 ,  C02F2209/40 ,  C02F2301/043

摘要： A reverse osmosis water system including a housing, a reverse osmosis cartridge, an unfiltered waterline, and a blend waterline. The housing includes an inlet and an outlet. A medial waterline transports pretreated water to the reverse osmosis cartridge. An unfiltered waterline includes a flow restrictor. A blend waterline transports a blended water mixture to the outlet. The blended waterline receives filtered water at a first flowrate from the medial waterline and unfiltered water at a second flowrate downstream of the flow restrictor. The flow restrictor provides the second flowrate at a substantially equal rate to the first flowrate.