公开(公告)号：US20190209974A1

公开(公告)日：2019-07-11

申请号：US16326230

申请日：2017-08-17

Applicant: Advanced Mem-Tech Ltd.

Inventor： Dikla ZADAKA-AMIR ,  Gilad LANDO ,  Elizabeth ALEXANDER ,  Elad MEGIDISH

IPC: B01D69/02 ,  B01D61/02 ,  B01D61/14 ,  B01D65/08 ,  B01D65/02 ,  C02F1/44 ,  C02F3/12 ,  B01D67/00

CPC classification number: B01D69/02 ,  B01D39/1692 ,  B01D61/025 ,  B01D61/027 ,  B01D61/14 ,  B01D65/02 ,  B01D65/08 ,  B01D67/0088 ,  B01D71/34 ,  B01D71/68 ,  B01D2321/185 ,  B01D2325/06 ,  B01D2325/08 ,  C02F1/441 ,  C02F1/444 ,  C02F3/1273

Abstract: The present disclosure is directed to membranes having improved performance parameters, specifically, to microfiltration, ultrafiltration, Nano filtration, reverse osmosis, submerged and bioreactor membranes having a portion with increased roughness (Ra) level.

公开(公告)号：US20190191642A1

公开(公告)日：2019-06-27

申请号：US16226001

申请日：2018-12-19

Applicant: Earth Purified LLC

Inventor： Jeff Mueller

IPC: A01G25/06 ,  A01G25/16 ,  E02B11/00 ,  C02F1/44

CPC classification number: A01G25/06 ,  A01G25/165 ,  B09C1/02 ,  B09C2101/00 ,  C02F1/441 ,  C02F2201/002 ,  C02F2209/001 ,  C02F2209/006 ,  C02F2307/14 ,  E02B11/005 ,  E02B2201/50

Abstract: The present invention is a system for treating land, either to reclaim or optimize the land. Embedded subsurface pipes deliver water to the land. The water may be loaded with soil-treating additives. As water streams from the pipes, it treats the land before passing into a drainage ditch around the periphery of the land. The water is removed from the ditch and recycled, removing contaminants (in reclamation operations) or adding more additives (in optimization operations), before returning to the pipes for another round of treatment, if necessary.

公开(公告)号：US20190077682A1

公开(公告)日：2019-03-14

申请号：US16185851

申请日：2018-11-09

Applicant: Murtech, Inc.

Inventor： Robert C. MURTHA, JR. ,  Michael E. MCCORMICK

IPC: C02F1/44 ,  B01D65/08 ,  B01D61/02 ,  F03B13/14 ,  B63B35/44 ,  C02F103/08 ,  B01D61/04 ,  E03B3/04 ,  C02F1/28 ,  B09C1/00

CPC classification number: C02F1/441 ,  B01D61/025 ,  B01D61/04 ,  B01D65/08 ,  B01D2311/04 ,  B01D2311/2649 ,  B01D2313/36 ,  B01D2321/20 ,  B09C1/002 ,  B63B35/44 ,  B63B2035/4473 ,  C02F1/281 ,  C02F2103/08 ,  C02F2201/008 ,  C02F2201/009 ,  C02F2303/16 ,  E03B3/04 ,  F03B13/14 ,  F03B13/20 ,  F05B2220/62 ,  F05B2260/406 ,  Y02A20/131 ,  Y02A20/144 ,  Y02A20/154 ,  Y02A20/211 ,  Y02A20/212 ,  Y02E10/38

Abstract: A potable water producing system for disposition at a salt water body and methods of producing potable water are provided. The system includes a wave energy conversion system (AWECS) and a portable filtration system. The AWECS forms a floating articulated barge having an onboard desalination system including reverse osmosis membranes. The filtration system is a sand filter residing on a damping plate submerged in the salt water body and filters the adjacent salt water for providing filtered salt water to the onboard desalination system. Wave action on the articulated barge provides energy to pump and pressurize the filtered salt water from the sand filter to the reverse osmosis membranes to produce potable water. The wave action on the articulated barge effects shaking of the reverse osmosis membranes, thereby rendering them self-cleaning. The potable water can be used for various applications, e.g., bottling, replenishing aquifers, ground and/or aquifer remediation, irrigation, etc.

公开(公告)号：US20190039026A1

公开(公告)日：2019-02-07

申请号：US15671043

申请日：2017-08-07

Applicant: United States of America as Represented by The Secretary of The Army

Inventor： Victor F Medina ,  Christopher S Griggs ,  Jose Mattei-Sosa ,  Brooke Petery ,  Luke Gurtowski

IPC: B01D69/14 ,  C02F1/44 ,  B01D67/00 ,  B01D71/74 ,  B01D71/02 ,  B01D69/10 ,  B01D63/10

CPC classification number: B01D69/148 ,  B01D63/10 ,  B01D67/0079 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/021 ,  B01D71/024 ,  B01D71/08 ,  B01D71/74 ,  B01D2319/06 ,  B01D2323/12 ,  B01D2323/30 ,  B01D2325/04 ,  C02F1/44 ,  C02F1/441 ,  C02F2303/04 ,  C02F2303/20

Abstract: A composition of five parts by mass of chitosan and one part graphene oxide is suspended in water. The composition may be used to form filtration layers of any size or shape and may be reinforced by additional layers. The composition may be used to construct a large filtration apparatus of any size or shape and may be used to form highly resilient, antimicrobial structures and surfaces for a variety of applications.

公开(公告)号：US20180353907A1

公开(公告)日：2018-12-13

申请号：US15736540

申请日：2015-10-16

Applicant: ALBEMARLE CORPORATION

Inventor： Jackson R. Switzer ,  Chi Hung Cheng ,  Steven R. Alferi

IPC: B01D61/02 ,  B01D71/16 ,  B01J20/28

CPC classification number: B01D61/022 ,  B01D61/027 ,  B01D71/16 ,  B01D2311/25 ,  B01D2317/022 ,  B01D2317/025 ,  B01J20/24 ,  B01J20/262 ,  B01J20/28035 ,  C02F1/441 ,  C02F1/442 ,  C02F2103/08 ,  C02F2301/08

Abstract: A process for removing at least Ca2+ and Mg2+ from a lithium-containing brine. The process comprises (i) providing an aqueous lithium-containing brine feed comprising dissolved Ca2+ and Mg2+ impurities in a weight ratio of Li+:Ca2+ of about 4:1 to 50:1 wt/wt and in a weight ratio of Li+:Mg2+ of about 4:1 to 50:1; (ii) subjecting said brine feed to nanofiltration to produce a lithium-containing permeate from which Ca2+ and Mg2+ components are being removed concurrently; and (iii) conducting the nanofiltration so that a separation occurs and a retentate solution is formed with a total amount of Ca2+ and Mg2+ of at least 75% of the total amount of Ca2+ and Mg2+ in the original aqueous lithium-containing brine feed and forming an aqueous lithium-containing permeate solution in which the total content of dissolved Ca2+ and Mg2+ is decreased to 25% or less as compared to the original aqueous lithium-containing brine feed.

公开(公告)号：US20180333678A1

公开(公告)日：2018-11-22

申请号：US15777207

申请日：2016-07-13

Applicant: I.D.E. Technologies Ltd.

Inventor： Alex DRAK ,  Tomer EFRAT ,  Roi ZAKEN

IPC: B01D61/08 ,  B01D61/04 ,  B01D61/12 ,  B01D61/02 ,  C02F1/28 ,  C02F1/42 ,  C02F1/44

CPC classification number: B01D61/08 ,  B01D61/02 ,  B01D61/025 ,  B01D61/027 ,  B01D61/04 ,  B01D61/12 ,  B01D2311/04 ,  B01D2311/08 ,  B01D2311/25 ,  B01D2311/2623 ,  B01D2311/2626 ,  B01D2311/2649 ,  B01D2311/268 ,  B01D2313/10 ,  C02F1/004 ,  C02F1/008 ,  C02F1/28 ,  C02F1/42 ,  C02F1/441 ,  C02F1/442 ,  C02F9/00 ,  C02F2209/03 ,  C02F2209/05 ,  C02F2209/40 ,  C02F2301/046 ,  C02F2303/24

Abstract: A system for cleaning feed water of variable quality, the system comprising an inlet for selectively delivering feed water (FW) to one or other of at least two feed chambers (2,4), each feed chamber having a delivery pipe (2i, 4i) for delivering feed water to a reverse osmosis or nanofiltration (8); a pump (6) to deliver the feed water from one of the chambers (2, 4) through its as sociated delivery pipe (2i, 4i) to the reverse osmosis or nanofiltration (8) to create a concentrated feed stream and a product water stream (PW);return pipes (2R, 4R) for selectively returning the concentrated feed stream to one or other of the at least two feed chambers (2, 4); a product water outlet for removal of the product water (PW); and means for switching the delivery of the concen trated feed stream between the selectable return pipes (2R, 4R) upon detection of a predetermined reduction in the efficiency of the RO or NF process within one or other of the feed chambers (2, 4). The pressure of the concentrated feed stream is reduced to atmo spheric pressure prior to its delivery back to the chamber and the feed stream passes through a desaturation unit (20).

公开(公告)号：US20180326360A1

公开(公告)日：2018-11-15

申请号：US15775670

申请日：2015-11-20

Applicant: BL Technologies , Inc.

Inventor： Li May GOH ,  Lawrence C. COSTA ,  Kai ZHANG ,  Dezhong XIAO ,  Kia Kian KEE ,  Kin Ho WEE ,  Ranting WU

IPC: B01D67/00 ,  B01D69/12 ,  C02F1/44

CPC classification number: B01D67/0006 ,  B01D67/0011 ,  B01D67/0016 ,  B01D67/003 ,  B01D69/125 ,  B01D71/38 ,  B01D71/46 ,  B01D71/56 ,  B01D71/60 ,  B01D2323/18 ,  B01D2323/30 ,  B01D2323/40 ,  C02F1/441

Abstract: Disclosed here are semi-permeable cross-linked polyvinyl alcohol (PVA) based membranes that can be used as supports for water purification membranes, and methods for their production. The cross-linked PVA-based membranes are cross-linked with the reaction product of poly-epoxides and —OH groups from the PVA polymers. Methods according to the present disclosure include crosslinking dissolved PVA and dissolved poly-epoxides, casting the cross-linked PVA, and coagulating the cast polymer in a phase immersion precipitation process.

公开(公告)号：US20180326327A1

公开(公告)日：2018-11-15

申请号：US15977687

申请日：2018-05-11

Applicant: Jeffrey Sandahl

Inventor： Jeffrey Sandahl

IPC: B01D29/11 ,  C02F1/44 ,  B01D65/02 ,  B01D61/02 ,  C02F1/28 ,  C02F1/00

CPC classification number: B01D29/117 ,  B01D61/025 ,  B01D65/02 ,  B01D71/021 ,  B01D71/48 ,  B01D71/52 ,  C02F1/003 ,  C02F1/28 ,  C02F1/441 ,  C02F2201/006 ,  C02F2307/06

Abstract: A filter unit includes an inlet for receiving unfiltered water. A first fluid path directs water through a membrane and a filter element to a first outlet. Additionally, a second fluid path directs water across the membrane and to a second outlet.

公开(公告)号：US20180280916A1

公开(公告)日：2018-10-04

申请号：US15782342

申请日：2017-10-12

Applicant: Larry John Dove ,  James Von Krosigk

Inventor： Larry John Dove ,  James Von Krosigk

IPC: B01J19/00 ,  C12M1/36 ,  B01D17/04 ,  C12M1/00 ,  B01D17/12 ,  B01D53/60 ,  B01D53/78 ,  B01D61/10 ,  B01F3/04 ,  B01F5/00 ,  B01F5/04 ,  B01J19/08 ,  C02F1/00 ,  C02F1/44 ,  C02F1/48 ,  C10L10/02 ,  C04B40/00 ,  C02F3/12 ,  C02F103/08

CPC classification number: B01J19/0006 ,  B01D17/047 ,  B01D17/12 ,  B01D53/18 ,  B01D53/60 ,  B01D53/78 ,  B01D61/10 ,  B01D2259/814 ,  B01D2311/2665 ,  B01F3/0446 ,  B01F3/04978 ,  B01F5/0057 ,  B01F5/0415 ,  B01F15/00136 ,  B01F15/00162 ,  B01F2215/0014 ,  B01F2215/0052 ,  B01F2215/0073 ,  B01F2215/0085 ,  B01J19/087 ,  B01J2219/00162 ,  B01J2219/00164 ,  B01J2219/0854 ,  B01J2219/0877 ,  C02F1/008 ,  C02F1/441 ,  C02F1/481 ,  C02F1/484 ,  C02F1/487 ,  C02F1/76 ,  C02F3/1278 ,  C02F3/1294 ,  C02F2103/08 ,  C02F2201/486 ,  C02F2209/005 ,  C02F2209/03 ,  C02F2209/40 ,  C02F2301/026 ,  C04B40/0007 ,  C10L10/02 ,  C10L2230/22 ,  C10L2290/14 ,  C10M113/02 ,  C10M173/02 ,  C10M2201/02 ,  C10M2201/041 ,  C10N2250/141 ,  C12M29/00 ,  C12M41/48 ,  Y02W10/15

Abstract: An apparatus for increasing gas components in a fluid uses a controller connected to a network and client device for remote control of fluid flow rates, magnet field intensity, and pressure of fluid based on preset parameters. Conductive wire coiled around a magnet fluid treatment device generates a bidirectional magnetic flux to magnetically treat fluid in the conduit at an entry pressure. A variable frequency generator energizes the wire creating magnetic flux lines to pass through the fluid flow conduit. A gas injector receives fluid at the gas injector entry pressure and lowers the gas injector entry pressure of the fluid to a gas injector discharge pressure. A treatment chamber receives the fluid at a treatment chamber entry pressure and lowers the treatment chamber entry pressure to a treatment chamber discharge pressure. The apparatus causes absorption of increased gas component into the fluid by from 10% to at least 500%.

公开(公告)号：US20180273412A1

公开(公告)日：2018-09-27

申请号：US15571266

申请日：2016-05-04

Applicant: Evoqua Water Technologies LLC

Inventor： Christopher Hall ,  Bruce Lee Coulter

IPC: C02F9/00

CPC classification number: C02F9/00 ,  C02F1/004 ,  C02F1/008 ,  C02F1/04 ,  C02F1/20 ,  C02F1/325 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/4693 ,  C02F1/4695 ,  C02F1/70 ,  C02F1/722 ,  C02F2001/427 ,  C02F2103/04 ,  C02F2103/346 ,  C02F2201/3227 ,  C02F2201/326 ,  C02F2209/20 ,  C02F2301/08 ,  C02F2303/18 ,  C02F2305/023

Abstract: A method and system of providing ultrapure water for semiconductor fabrication operations is provided. The water is treated by utilizing a free radical scavenging system. The free radical scavenging system can utilize actinic radiation with a free radical precursor compound, such as ammonium persulfate. The ultrapure water may be further treated by utilizing ion exchange media and degasification apparatus. A control system can be utilized to regulate a continuously variable intensity of the actinic radiation.