公开(公告)号：US20230416119A1

公开(公告)日：2023-12-28

申请号：US18242125

申请日：2023-09-05

申请人： U.S. ENVIRONMENTAL PROTECTION AGENCY

发明人： HODON RYU ,  YOONTAEK OH

IPC分类号： C02F1/32 ,  C02F1/00

CPC分类号： C02F1/325 ,  C02F1/003 ,  C02F2201/3222 ,  C02F2201/3228 ,  C02F2209/40 ,  C02F2307/06

摘要： A Point of Use (POU) filtration device has a hollow conduit having open ends. An Ultraviolet Light Emitting Diode (UV-LED) module is coupled to the hollow container. The UV-LED module illuminating UV light into an interior of the hollow conduit, the UV light reflecting down the interior of the hollow conduit

公开(公告)号：US20230405527A1

公开(公告)日：2023-12-21

申请号：US18035548

申请日：2021-11-04

申请人： BWT Holding GmbH

发明人： Jürgen JOHANN ,  Katharina WEITGASSER

IPC分类号： B01D61/10 ,  C02F1/32 ,  C02F1/72 ,  C02F1/66 ,  C02F1/44 ,  B01D61/02 ,  C02F1/50

CPC分类号： B01D61/10 ,  C02F1/32 ,  C02F1/722 ,  C02F1/66 ,  C02F1/441 ,  C02F1/442 ,  B01D61/025 ,  B01D61/027 ,  C02F1/50 ,  C02F2201/006 ,  B01D2311/08 ,  C02F2303/20 ,  C02F2303/04

摘要： A germ barrier is provided in the concentrate/wastewater drain from a water installation system towards the wastewater sewer in order to prevent backward contamination with germs, using a UV lamp or a chemical germ barrier that contains an alkaline material, in particular a material selected from the group consisting of carbonates, oxides, and peroxides, and combinations thereof.

公开(公告)号：US11845683B2

公开(公告)日：2023-12-19

申请号：US17515390

申请日：2021-10-29

申请人： Nanjing Hydraulic Research Institute

发明人： Xiaojun Wang ,  Jianyun Zhang ,  Feng Chen

IPC分类号： C02F9/00 ,  E03B1/04 ,  C02F1/00 ,  C02F1/28 ,  C02F1/32 ,  C02F3/26 ,  C02F103/00

CPC分类号： C02F9/00 ,  E03B1/041 ,  C02F1/001 ,  C02F1/28 ,  C02F1/325 ,  C02F3/26 ,  C02F2103/001 ,  C02F2103/002 ,  C02F2103/005 ,  C02F2209/02 ,  C02F2303/04 ,  E03B2001/045 ,  E03B2001/047

摘要： Disclosed are a method and system for vertically utilizing unconventional water source. The system includes a water collection unit, a water treatment unit, and a monitoring, regulation and reuse unit. The water collection unit is configured to collect rainwater and/or domestic wastewater; the water treatment unit is in communication with the water collection unit and configured to purify the rainwater and/or the domestic wastewater collected by the water collection unit; and the monitoring, regulation and reuse unit is in communication with the water treatment unit and configured to use reclaimed water obtained through treatment by the water treatment unit. The method and the system for vertically utilizing unconventional water source in the present disclosure have advantages of a simple structure, low costs, and high treatment efficiency, effectively save energy and water resources, and are suitable for decentralized treatment and recycling of urban domestic wastewater.

公开(公告)号：US11840469B2

公开(公告)日：2023-12-12

申请号：US17049226

申请日：2019-04-24

申请人： GM INNOVATIONS LIMITED

发明人： Gerard Melling ,  Alan Suttie ,  Brian Loudon ,  John Elliot

IPC分类号： C02F9/00 ,  B04B1/12 ,  B04B11/02 ,  C02F1/00 ,  C02F1/32 ,  C02F1/38 ,  C02F1/44

CPC分类号： C02F9/00 ,  B04B1/12 ,  B04B11/02 ,  C02F1/008 ,  C02F1/001 ,  C02F1/32 ,  C02F1/385 ,  C02F1/441 ,  C02F2201/005 ,  C02F2209/008 ,  C02F2209/03 ,  C02F2209/40 ,  C02F2303/04

摘要： The invention provides an apparatus for providing potable water, which apparatus comprises a plurality of components linked in series to provide a flow path through the apparatus, wherein the plurality of components comprises:

(i) an inlet (4) for a stream of contaminated water requiring purification;
(ii) a centrifugal separator (20) for separating the contaminated water stream into a partially purified water stream and a contaminant stream;
(iii) a pre-filter pump (26);
(iv) a pre-filter pressure sensor (30);
(v) a first filter assembly (32) comprising one or more filter modules for removing particles of a predetermined size and/or removing organic contaminants from the partially purified water stream;
(vi) a post-filter pressure sensor (38);
(vii) a post-filter pump (40);
(viii) a second filter assembly comprising one or more reverse osmosis filters (48);
(ix) a UV steriliser unit (52); and
(x) an outlet (6) for purified potable water;
and wherein the apparatus further comprises an electronic controller (14) for controlling and monitoring the operation of the apparatus.

公开(公告)号：US20230365441A1

公开(公告)日：2023-11-16

申请号：US18195243

申请日：2023-05-09

申请人： THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： YUGO SATO ,  GUANGHAO CHEN ,  YUEWEI LIU

IPC分类号： C02F1/467 ,  C02F1/32 ,  C02F1/461

CPC分类号： C02F1/4674 ,  C02F1/325 ,  C02F1/46109 ,  C02F2103/06

摘要： A system and method for performing electrochemically-cycled oxidation on landfill leachate are provided for the removal of organic materials in landfill leachate which have an ultraviolet absorbance at 254 nm (UVA254), thus pre-treating the landfill leachate for co-treatment through dilution with municipal sewage. Electrochemical oxidation is performed on the landfill leachate in a first reactor chamber to produce hypochlorite (OCl−), followed by delayed application of ultraviolet radiation to produce hydroxyl radicals (OH•) and reactive chlorine species to break bonds in the organic materials. A portion of this partially-treated landfill leachate is then fed to a second reactor chamber for subsequent dichlorination through ultraviolet photolysis. An equivalent volume of fresh landfill leachate is fed into the first reactor chamber to begin the cycle again, allowing for continuous treatment of a source of landfill leachate.

公开(公告)号：US11814304B2

公开(公告)日：2023-11-14

申请号：US16676543

申请日：2019-11-07

申请人： PHOTOSCIENCE JAPAN CORPORATION

发明人： Tomoyoshi Nakamura ,  Yuji Yamakoshi

IPC分类号： C02F1/32 ,  C02F1/42 ,  C02F101/30

CPC分类号： C02F1/32 ,  C02F1/42 ,  C02F2101/30 ,  C02F2201/32 ,  C02F2303/04 ,  C02F2305/023

摘要： A process of dissolving into to-be-treated water a peroxodisulfate and metal ions other than ions of alkali metals is performed by pouring equipment. An ultraviolet irradiation apparatus performs a process of treating the to-be-treated water, having the peroxodisulfate and the metal ions other than ions of alkali metals dissolved therein, with ultraviolet rays. By performing UV treatment on the to-be-treated water having the peroxodisulfate and metal ions dissolved therein, the inventive method and system achieve improved TOC decomposing performance and thus can particularly decompose a urea component in an efficient manner. Further, the to-be-treated water may be treated with an ion-exchange resin at a subsequent stage in such a manner that organic acids contained in the to-be-treated water having been subjected to the UV treatment are adsorbed to the ion exchange-resin, with the advantageous result that the concentration of TOC present in the to-be-treated water can be reduced.

公开(公告)号：US11807833B2

公开(公告)日：2023-11-07

申请号：US17177758

申请日：2021-02-17

申请人： Trojan Technologies Group ULC

发明人： Michael R. Sasges ,  Anthony Martin John Porter

IPC分类号： B08B9/023 ,  C11D17/04 ,  C11D7/08 ,  C11D11/00 ,  A61L2/26 ,  A61L2/10 ,  C02F1/32 ,  B08B1/00 ,  B08B3/08 ,  C11D7/26

CPC分类号： C11D17/043 ,  A61L2/10 ,  A61L2/26 ,  B08B1/006 ,  B08B3/08 ,  B08B9/023 ,  C02F1/325 ,  C11D7/08 ,  C11D7/266 ,  C11D11/0041 ,  C11D17/049 ,  A61L2202/11 ,  B08B2209/02 ,  C02F2201/324 ,  C02F2303/04

摘要： An embodiment provides a method for cleaning a surface, including: encapsulating a cleaning composition in a polymer material to form a compound, wherein the polymer material surrounds the cleaning composition; placing the compound in a location adjacent to the surface, wherein the location adjacent to the surface is a volume separated from an outer volume; dissolving the polymer material at a pH above a target value above the polymer material pH dissolution point, wherein the dissolving releases the cleaning composition; and cleaning the surface using the released cleaning composition. Other aspects are described and claimed.

公开(公告)号：US20230348296A1

公开(公告)日：2023-11-02

申请号：US18029528

申请日：2021-10-11

申请人： AlfaWall Aktiebolag

发明人： Peter SAHLÉN

IPC分类号： C02F1/00 ,  C02F1/32

CPC分类号： C02F1/008 ,  C02F1/325 ,  C02F2103/008

摘要： In a method performed by a control device for verifying the performance of a UV-reactor for treating ballast water in marine vessels, the UV-reactor includes at least one UV-light source; at least one UV-light sensor; an inlet and an outlet for liquid; and the control device. The method includes controlling a cleaning process of the UV-reactor; controlling a flow of fresh water into the UV-reactor for filling the UV-reactor with fresh water; recording a UV-intensity, value from the at least one UV-light source by the at least one UV-light sensor; comparing the recorded UV-intensity value with a setpoint UV-intensity value, the setpoint value being either a default value or is defined at commissioning of the UV-light source; and generating a user alert, if the recorded UV-intensity value is lower than the setpoint value. A control device and a UV-reactor are also disclosed.

公开(公告)号：US20230347280A1

公开(公告)日：2023-11-02

申请号：US18026123

申请日：2021-09-16

申请人： SEOUL VIOSYS CO., LTD.

发明人： Chung Hoon LEE

IPC分类号： B01D53/14 ,  B01D46/00 ,  C02F1/32 ,  A61L9/20 ,  A61L9/14

CPC分类号： B01D53/1431 ,  B01D46/0028 ,  C02F1/325 ,  A61L9/20 ,  A61L9/145 ,  B01D2257/91 ,  B01D2279/65 ,  C02F2303/04 ,  C02F2201/3227 ,  C02F2201/3228 ,  C02F2201/328 ,  B01D2273/30 ,  B01D2258/06 ,  A61L2209/14

摘要： A fluid treatment device including: a pipe having an inlet through which fluid is introduced into the pipe from a fluid treatment space, an outlet through which sterilized fluid is discharged to the fluid treatment space, and a flow channel connecting the inlet to the outlet, the pipe providing a sterilization area in the flow channel; a solvent filling at least a portion of the sterilization area; and at least one light source module disposed in the sterilization area, and including a light source to emit sterilizing light and a substrate on which the light source is mounted, in which the fluid introduced through the inlet passes through the solvent towards the outlet, the solvent traps contaminants contained in the fluid when the fluid passes through the solvent, and the light source module sterilizes the solvent with the contaminants trapped therein.

公开(公告)号：US20230339784A1

公开(公告)日：2023-10-26

申请号：US18025651

申请日：2021-09-10

申请人： SEOUL VIOSYS CO., LTD.

发明人： Chung Hoon LEE

IPC分类号： C02F1/32 ,  C02F1/00 ,  A61L9/20

CPC分类号： C02F1/32 ,  C02F1/001 ,  A61L9/20 ,  C02F2303/04 ,  C02F2201/3227 ,  C02F2201/3228 ,  C02F2301/02 ,  A61L2209/12 ,  A61L2209/14

摘要： A fluid treatment apparatus including: a pipe having an inlet and an outlet through which a fluid is configured to pass, and a flow channel connecting the inlet to the outlet to define a sterilization area; a fan to control a flow of the fluid; and at least one light source module including a light source to emit sterilizing light towards the sterilization area of the pipe and a substrate, in which the inlet and the outlet of the pipe are disposed adjacent to bottom and top surfaces of an external space of the pipe, respectively, the pipe includes a bent portion such that a flow direction of the fluid passing through the inlet and the outlet of the pipe is different from a flow direction of the fluid passing through sterilization area, and a length of the sterilization area is greater than a diameter of the sterilization area.