公开(公告)号：US20200062629A1

公开(公告)日：2020-02-27

申请号：US16612010

申请日：2018-05-09

Applicant: BL TECHNOLOGIES, INC.

Inventor： Michael David THEODOULOU ,  Dorian HARRISON ,  Marion DEBACKER

IPC: C02F11/18 ,  C02F11/04 ,  C02F3/28

Abstract: Sludge, for example primary sludge or waste activated sludge or both from a wastewater treatment plant, is pre-treated prior to anaerobic digestion. The pre-treatment includes an optuional mechanical treatment to reduce the viscosity of the sludge and a biological hydrolysis treatment. The biological hydrolysis treatment may be performed in a series of reactors some of which are maintained at a temperature in the range of 50 to 70° C. The reactors provide a combined residence time in the range of 0.5 to 6 days. Optionally, measurements of the pH of the sludge during or after biological hydrolysis, or the production of biogas from a downstream anaerobic digester, may be considered in adjusting the temperature of one or more of the biological hydrolysis reactors.

公开(公告)号：US20200049707A1

公开(公告)日：2020-02-13

申请号：US16660405

申请日：2019-10-22

Applicant: BL Technologies, Inc.

Inventor： Paul Charles Melanson ,  Richard Douglas Godec ,  Matthew Kaddeland STONESMITH ,  Darren Barry Smith ,  Chao Sun

IPC: G01N33/569 ,  G01N21/17 ,  B01L3/00 ,  G01N33/579

Abstract: A centripetal microfluidic platform comprised of a microfluidics disc and a reader for testing LAL-reactive substances in fluid samples is provided. The microfluidic disc may comprise at least two testing areas wherein each testing area includes a reservoir portion for receiving at least one fluid sample. The disc may comprise a distribution network portion in fluid communication with the reservoir portion. Each distribution network portion may comprise a distribution network of at least four (4) channels, wherein each channel has a metering portion and at least one analysis chamber portion. The analysis chamber portion may comprise a mixing chamber for mixing samples and reagents and an optical chamber portion that is compatible with an optical reader. The metering portion may be sized to meter an aliquot of the fluid sample for analysis in the analysis chamber portion. At least one analysis chamber portion has at least one reagent isolated therein. The centripetal microfluidic platform further includes a reader for testing fluid samples within a microfluidic disc comprising an enclosure, an optical bench, a centripetal disc drive, and a controller. A method for testing at least one fluid sample for LAL-reactive substances is also provided.

公开(公告)号：US20200048421A1

公开(公告)日：2020-02-13

申请号：US16344882

申请日：2016-11-01

Applicant: BL Technologies, Inc.

Inventor： Kai ZHANG ,  Li May GOH ,  Seng Yong GOH ,  John H. BARBER ,  Russell James MACDONALD ,  Yongchang ZHENG ,  Yonghong ZHAO

IPC: C08J5/22 ,  B01J39/20 ,  B01D61/46 ,  B01D69/02 ,  B01D71/40

Abstract: The present disclosure provides a method of producing a cation exchange polymer, the method includes polymerizing an anionic monomer in the presence of a polymerizable crosslinker having a cationic functional group. A sufficient amount of anionic monomer is used to provide both the anionic charges necessary for cation exchange, and the anionic charges necessary to pair with the cationic functional groups in the crosslinker.

公开(公告)号：US20200023317A1

公开(公告)日：2020-01-23

申请号：US16498201

申请日：2018-03-29

Applicant: BL TECHNOLOGIES, INC.

Inventor： Jianwen ZHAI ,  Min LUO

IPC: B01D61/02 ,  B01D61/08 ,  C02F1/44

Abstract: This specification describes a method for lowering the content of monovalent ions in a final concentrate of a nanofiltration system relative to a brine and a corresponding nanofiltration system. The nanofiltration system comprises at least three stages of nanofiltration, wherein the concentrate from each segment flows into the next segment. A feed stream is sent into one stage to generate a concentrate stream, and a first portion of the concentrate stream is recirculated to the one stage. The pH of the feed stream is controlled in a range of 2-7. The temperature of the feed stream is in a range of 20-60° C. The feed stream includes the recirculated concentrate stream and at least part of a concentrate generated from an upstream stage. The method and the system described herein can reduce the concentration of monovalent ions in the final concentrate during a nanofiltration separation process.

公开(公告)号：US10471393B2

公开(公告)日：2019-11-12

申请号：US15156957

申请日：2016-05-17

Applicant: BL Technologies, Inc.

Inventor： Jeffrey Ronald Cumin ,  Henry Behmann ,  Yongseck Hong ,  Reid Bayly

IPC: B01D65/02 ,  B01D61/08 ,  B01D61/18 ,  B01D65/08 ,  B01D61/22 ,  B01D61/12 ,  B01F3/04 ,  B01D65/00 ,  C02F1/44

Abstract: A gas sparger produces an intermittent flow of bubbles even if provided with a continuous gas flow. The sparger has a housing to collect a pocket of gas and a conduit to release some of the gas from the pocket when the pocket reaches a sufficient size. Optionally, a cover over an outlet from the conduit may break up or distribute the released gas. A large sparger for use with a commercial membrane module can comprise a plurality of smaller units.

公开(公告)号：US20190232226A1

公开(公告)日：2019-08-01

申请号：US16340571

申请日：2017-08-10

Applicant: BL Technologies, Inc.

Inventor： Jason CADERA ,  Derek SENIOR ,  Nicholas William H. ADAMS

IPC: B01D61/18 ,  B01D65/02 ,  B01D65/10 ,  C02F1/28 ,  C02F1/44

CPC classification number: B01D61/18 ,  B01D65/02 ,  B01D65/10 ,  B01D2311/06 ,  B01D2311/2626 ,  B01D2315/06 ,  B01D2321/04 ,  B01D2321/16 ,  B01D2321/168 ,  B01D2321/185 ,  B01D2325/28 ,  C02F1/283 ,  C02F1/444 ,  C02F2303/16

Abstract: A conventional media filter such as a gravity sand filter is converted into a membrane filter. The media is removed and replaced by immersed membrane modules. Transmembrane pressure is created by a static head pressure differential, without a suction pump, thereby creating a membrane gravity filter (MGF). Membrane permeate passes through a bed of adsorption media optionally located in a tank with the membrane modules. The membranes are backwashed periodically with permeate, which bypasses the adsorption media as it returns to the membrane module.

公开(公告)号：US10351446B2

公开(公告)日：2019-07-16

申请号：US14349914

申请日：2012-09-19

Applicant: BL Technologies, Inc.

Inventor： Linglu Yang ,  Hai Yang ,  Wei Lu ,  John Harold Barber

IPC: B01D61/48 ,  C02F1/469

Abstract: A desalination system comprises at least one desalination cell. The at least one desalination cell comprises first and second electrodes, an anion exchange layer and a cation ion exchange layer disposed on the respective first and second electrodes, and a spacer disposed between the first and second electrodes. The at least one desalination cell further comprises an ion exchange resin disposed between the first and second electrodes. A desalination system and a method for removing ions from an aqueous stream are also presented.

公开(公告)号：US20190083937A1

公开(公告)日：2019-03-21

申请号：US16065983

申请日：2016-12-14

Applicant: BL Technologies, Inc.

Inventor： Linglu YANG ,  Jie HUANG ,  Yun PENG ,  Lin CHEN ,  Su LU

IPC: B01D63/10 ,  B01D69/02 ,  B01D67/00 ,  B01D71/68 ,  B01D61/14

Abstract: The present invention relates to a filter element and a method for manufacturing thereof. The method comprises: Providing the core tube; and rolling a membrane around the core tube. The membrane comprises a porous substrate and a filter layer on top of the porous substrate. The present invention also relates to the corresponding filter element. The filter element relating to the present invention is able to accommodate more membranes inside the same volume, resulting in high throughput and high salt rejection.

公开(公告)号：US20190024492A9

公开(公告)日：2019-01-24

申请号：US14428138

申请日：2013-08-19

Applicant: BL TECHNOLOGIES, INC.

Inventor： Jiyang XIA

IPC: E21B43/40 ,  C02F9/00 ,  E21B43/24

Abstract: Produced water, for example from a steam assisted gravity drainage (SAGD) or cyclic steam stimulation (CSS) heavy oil recovery operation, is treated to recover water that is re-used to create steam. The produced water is treated in one or more thermal treatment devices such as an evaporator and a crystallizer. The thermal treatment device is seeded, for example with a calcium or magnesium salt. The thermal treatment device produces a blowdown or slurry comprising super-saturated solids and organic compounds. A solvent is added to the blowdown or slurry. The solids precipitate and are separated from the blowdown or slurry. The solvent may be recovered for re-use in treating more blowdown or slurry.

公开(公告)号：US10132145B2

公开(公告)日：2018-11-20

申请号：US14428213

申请日：2013-08-22

Applicant: BL TECHNOLOGIES, INC.

Inventor： Jiyang Xia ,  Wenqing Peng ,  Hai Yang ,  Chunjie Liu ,  Chang Wei ,  Wei Cai ,  Yiwen Sun

IPC: E21B43/24 ,  E21B43/34 ,  C02F9/00 ,  B01D9/00 ,  B01D11/02 ,  E21B43/40 ,  C02F1/04 ,  C02F1/26 ,  C02F1/42 ,  C02F1/52 ,  C02F101/32 ,  C02F103/10

Abstract: Produced water, for example from a steam assisted gravity drainage (SAGD) or cyclic steam stimulation (CSS) heavy oil recovery operation, is treated to recover water that is re-used to create steam. The produced water is treated in one or more thermal treatment devices such as an evaporator and a crystallizer. The thermal treatment produces a slurry comprising dispersed or dissolved salts and organic compounds. A water-miscible solvent for one or more of the organic compounds, for example methanol, is added to the slurry. The solids precipitate and are separated from the slurry. The solvent may be recovered for re-use in treating more slurry.