公开(公告)号：US20240228334A1

公开(公告)日：2024-07-11

申请号：US18286016

申请日：2022-04-07

Applicant: Cranfield University

Inventor： Leon Brett Matthew Williams

IPC: C02F1/44 ,  B01D61/36

CPC classification number: C02F1/447 ,  B01D61/364 ,  B01D61/366

Abstract: A human solid and liquid waste treatment system including method and apparatus for the separation of solid and liquid waste and the further filtration and purification of liquid waste suitable for recycled use. The system comprises a plurality of pre-filtration units provided up-stream of a membrane distillation unit for the energy efficient filtering of waste liquid.

公开(公告)号：US20240189775A1

公开(公告)日：2024-06-13

申请号：US18536159

申请日：2023-12-11

Applicant: EvCon GmbH

Inventor： Markus Wenzel

IPC: B01D61/36 ,  B01D63/08 ,  C02F1/44

CPC classification number: B01D61/3641 ,  B01D61/366 ,  B01D63/082 ,  C02F1/447 ,  B01D2313/221 ,  B01D2313/54 ,  B01D2317/025 ,  C02F2201/007 ,  C02F2301/08 ,  C02F2303/10

Abstract: This disclosure relates to a multistage distillation system for concentrating a feed liquid, the system including at least one module being assembled by a stack of frame elements, wherein each module includes at least one stage, such that the system includes in total a plurality of stages configured to be flowed through in series by a main feed liquid. Each stage of the plurality of stages is configured to generate steam and feed the steam to a subsequent stage. The first stage of the plurality of stages is configured to heat the main feed liquid and/or to be fed with heated main feed liquid. The system further includes an intermediate cooling device configured to cool the heated main feed liquid before flowing to at least one of the second to last stages of the plurality of serial stages.

公开(公告)号：US11992808B2

公开(公告)日：2024-05-28

申请号：US17260661

申请日：2018-07-23

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Noreddine Ghaffour ,  Ahmad S. Alsaadi ,  Lijo Francis

IPC: B01D61/36

CPC classification number: B01D61/364 ,  B01D61/366 ,  B01D2313/221 ,  B01D2317/025

Abstract: A membrane distillation module includes a housing having a hot inlet for receiving a hot feed and a hot outlet for expelling the hot feed; a porous membrane located inside the housing and having an outside surface that defines an enclosure, the outside surface being configured to contact the hot feed, wherein the porous membrane is configured to prevent the hot feed from passing from outside the porous membrane to an inside of the enclosure; and a non-porous conduit located inside the enclosure, the non-porous conduit having an inlet for receiving a cold feed and an outlet for expelling the cold feed.

公开(公告)号：US20240058760A1

公开(公告)日：2024-02-22

申请号：US17892347

申请日：2022-08-22

Applicant: Saudi Arabian Oil Company ,  King Fahd University of Petroleum & Minerals

Inventor： Dahiru Umar Lawal ,  Turki Nabieh Baroud ,  Hasan Al Abdulgader

IPC: B01D61/36 ,  B01D69/02

CPC classification number: B01D61/3641 ,  B01D61/366 ,  B01D69/02 ,  B01D2313/243 ,  B01D2313/12 ,  B01D2313/26 ,  B01D2313/22 ,  B01D2317/04 ,  B01D2317/025 ,  B01D2325/38 ,  B01D2317/06 ,  B01D2313/54

Abstract: A multistage vacuum membrane distillation (MS-VMD) system including a plurality of modules is provided along with a method for using the MS-VMD. The MS-VMD system includes a feed chamber coupled to a feed line and a carrier gas line, wherein the feed line introduces a liquid feed into the feed chamber from a liquid feed tank, and wherein the carrier gas line introduces a carrier gas into the feed chamber. The MS-VMD system also includes a vacuum chamber coupled to a vacuum line, wherein the vacuum line pulls a vacuum on the vacuum chamber, and a membrane separating the feed chamber from the vacuum chamber, wherein the membrane allows transportation of vapor from the feed chamber to the vacuum chamber while blocking liquid from moving from the feed chamber to the vacuum chamber.

公开(公告)号：US20240058757A1

公开(公告)日：2024-02-22

申请号：US17892269

申请日：2022-08-22

Applicant: Saudi Arabian Oil Company ,  King Fahd University of Petroleum & Minerals

Inventor： Dahiru Umar Lawal ,  Turki Nabieh Baroud ,  Hasan Al Abdulgader

IPC: B01D61/36 ,  C02F1/44

CPC classification number: B01D61/3641 ,  C02F1/447 ,  B01D61/366 ,  C02F2301/08 ,  B01D2311/13 ,  B01D2317/022

Abstract: A multi-stage sweeping gas membrane distillation (MS-SGMD) system and a method of use are provided. The MS-SGMD includes a plurality of modules, wherein each module includes a feed chamber fluidically coupled to a feed line and a carrier gas line, wherein the feed line introduces a liquid feed into the feed chamber from a liquid feed tank, and wherein the carrier gas line introduces a carrier gas into the feed chamber. Each module includes a sweeping gas chamber fluidically coupled to a sweeping gas line and a sweeping gas return line, wherein a sweeping gas is passed through the sweeping gas chamber. Each module further includes a membrane separating the feed chamber from the sweeping gas chamber, wherein the membrane allows transportation of vapor from the feed chamber to the sweeping gas chamber while blocking liquid from moving from the feed chamber to the sweeping gas chamber.

公开(公告)号：US11857928B2

公开(公告)日：2024-01-02

申请号：US16972879

申请日：2018-06-08

Applicant: EVCON GMBH

Inventor： Norbert Borgmann ,  Markus Wenzel ,  Wolfgang Heinzl

IPC: B01D61/36 ,  B01D63/08 ,  C02F1/44

CPC classification number: B01D61/366 ,  B01D61/364 ,  B01D63/082 ,  C02F1/445 ,  B01D2313/22 ,  B01D2313/54 ,  B01D2317/025 ,  B01D2317/04 ,  C02F2201/007 ,  C02F2301/08

Abstract: The invention relates to a multistage membrane distillation apparatus (5000), comprising a plurality of multistage membrane distillation modules (500, 600), the modules being configured to be flowed through in parallel by a liquid (F) to be concentrated. Each module comprises a plurality of serial condensation/evaporation stages (50, 60) configured to be flowed through in series by the liquid to be concentrated. Each condensation/evaporation stage comprises a plurality of parallel condensation/evaporation elements (101, 102) configured to be flowed through in parallel by the liquid to be concentrated. Each condensation/evaporation element comprises at least one condensation unit and at least one evaporation unit. The apparatus further comprises at least one of: a centralized heating stage configured to generate steam and to provide the steam to each of the modules in parallel, and a centralized condensation stage configured to receive steam from each of the modules in parallel and to condensate the steam.

公开(公告)号：US11833473B2

公开(公告)日：2023-12-05

申请号：US16972848

申请日：2018-06-08

Applicant: EVCON GMBH

Inventor： Markus Wenzel ,  Norbert Borgmann ,  Wolfgang Heinzl

IPC: B01D61/36

CPC classification number: B01D61/364 ,  B01D61/366 ,  B01D2313/025 ,  B01D2313/22 ,  B01D2319/02 ,  B01D2319/04

Abstract: The invention relates to a modular flow system having a plurality of frame elements (101, 102) configured to be combined together to form a stack for forming a functional member such as in particular a membrane distillation stage, a vapor generator, a condenser, a heat exchanger, a filter and/or a pervaporation stage, wherein the frame elements (101, 102) each include: an outer frame (39) and an inner frame (43), the inner frame (43) encasing a central inner region (40) and being surrounded by the outer frame (39), at least one first passage opening (13 to 16) arranged between the outer frame (39) and the inner frame (43) and separated from the central inner region (40) by a frame wall on a first and/or opposite second frame side of the inner frame (43), and at least one liquid passage (45, 46) provided by the frame wall and configured to distribute a liquid from the first passage opening (13) to a feeding area (40′) and/or to collect a liquid from the feeding area (40) to the first passage opening (16a, 16b)), the feeding area (40′) being aligned with the central inner region (40) but being outside and/or in front of the inner frame (43), wherein the liquid passage extends asymmetrically and/or discontinuously along the first and/or second frame side.

公开(公告)号：US20230296578A1

公开(公告)日：2023-09-21

申请号：US17905805

申请日：2021-03-08

Applicant: Analytik Jena GmbH

Inventor： Roland Lehmann

IPC: G01N33/18 ,  C02F1/00 ,  B01D61/36 ,  G01N21/31

CPC classification number: G01N33/18 ,  C02F1/001 ,  B01D61/364 ,  B01D61/366 ,  G01N21/31

Abstract: The present disclosure relates to a method for determining the necessity of an action and/or a success of an action involving water, especially drinking water, process water or waste water, including steps as follows: providing a retentate of a water filter present in a water conveying line, analyzing the retentate regarding at least one property and/or its chemical composition, and determining the necessity or success of the action and, in given cases, deriving the action from the analysis. Furthermore, the present disclosure relates to a system including a means for providing the retentate of a water filter in a water conveying line and a measuring/analytical means for performing the analysis.

公开(公告)号：US20180118585A1

公开(公告)日：2018-05-03

申请号：US15567894

申请日：2016-04-22

Applicant: Aquatech International, LLC

Inventor： Ravi Chidambaran ,  Pavan Raina ,  Narendra Singh Bisht ,  Santosh Venkatesh Bhinge

IPC: C02F1/44 ,  B01D61/36 ,  B01D9/00 ,  B01D71/02 ,  B01D69/02 ,  B01D61/58 ,  B01D63/08 ,  B01D71/34 ,  B01D71/36 ,  B01D71/52

CPC classification number: C02F1/447 ,  B01D9/0031 ,  B01D9/0059 ,  B01D61/025 ,  B01D61/14 ,  B01D61/364 ,  B01D61/366 ,  B01D61/58 ,  B01D63/08 ,  B01D69/02 ,  B01D71/024 ,  B01D71/34 ,  B01D71/36 ,  B01D71/52 ,  B01D2311/08 ,  B01D2311/25 ,  B01D2311/26 ,  B01D2311/2673 ,  B01D2313/146 ,  B01D2313/36 ,  B01D2313/38 ,  B01D2325/38 ,  C02F1/441 ,  C02F1/444 ,  C02F2103/023 ,  C02F2103/10 ,  C02F2103/18 ,  C02F2103/365 ,  C02F2201/009 ,  C02F2209/02 ,  C02F2209/10 ,  Y02A20/212 ,  Y02W10/37

Abstract: Embodiments provide methods and structures for purification or volume reduction of a brine by an advanced vacuum distillation process (AVMD) to achieve higher flux by passage of vapors through an AVMD distillation unit. In one example, brine is circulated in a tank. The tank may include one or more membrane pouches that are submerged in the circulating brine or placed above the water level of the hot circulating brine. In other embodiments the membrane pouches are outside of the tank that includes the hot circulating brine but still in communication with it. The circulating brine is heated, allowing creation of water vapor. Using a vacuum, the water vapor is drawn through the membrane, where it may be condensed and subjected to further beneficial use. This process can concentrate to levels to generate crystals or solids, which can be separated and utilized.

公开(公告)号：US09827532B2

公开(公告)日：2017-11-28

申请号：US14986779

申请日：2016-01-04

Applicant: PBI Performance Products, Inc.

Inventor： Yan Wang ,  Michael Gruender ,  Tai-shung Chung

IPC: B01D39/00 ,  B01D39/14 ,  B01D67/00 ,  B01D15/00 ,  B29C44/04 ,  B01D33/21 ,  B01D61/36 ,  C08G73/18 ,  B01D71/64 ,  B01D63/02 ,  B01D63/08 ,  C02F1/44

CPC classification number: B01D61/366 ,  B01D61/362 ,  B01D63/02 ,  B01D63/08 ,  B01D67/0006 ,  B01D67/0083 ,  B01D67/0093 ,  B01D71/64 ,  B01D2323/30 ,  B01D2325/30 ,  C08G73/18

Abstract: A pervaporation membrane may be an acid-resistant polybenzidimazole (PBI) membrane. The acid-resistant PBI membrane may be a PBI membrane chemically modified by a process selected from the group consisting of sulfonation, phosphonation, cross-linking, N-substitution, and/or combinations thereof. The membrane may be thermally stabilized. A method for the dehydration of an acid material may include the steps of: contacting an acidic aqueous solution with a membrane of an acid-resistant polybenzidimazole; taking away a permeate stream rich in water; and taking away a concentrate steam rich in the acid material. The acidic aqueous solution may be acetic acid.