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公开(公告)号：US10941060B2
公开(公告)日：2021-03-09
申请号：US15241430
申请日：2016-08-19
Inventor： King Lun Yeung , Joseph Kai Cho Kwan , Siu Ming Kwan , Oi Wa Lee , Pik Shuen Karen Hung
IPC: C02F1/48
Abstract: The present subject matter is directed to water disinfection by pulsed electric field (PEF) systems. The present subject matter relates to a pulsed electric field assembly with a separator that separates and disinfects the microorganisms in drinking water. The present subject matter relates to an anti-corrosion electrode, particularly an electrode having a zeolite coating layer serving as a protector, a process for the preparation a zeolite coating on a conducting electrode substrate, and application of the zeolite coated electrode on water electrolysis and PEF systems.
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公开(公告)号：US11945973B2
公开(公告)日：2024-04-02
申请号：US16874402
申请日：2020-05-14
Inventor： King Lun Yeung , Wei Han , Xizi Song , Joseph Kai Cho Kwan , Yutang Luo
CPC classification number: C09D7/61 , B01D46/0028 , B05D3/10 , C09D5/14 , B05D2350/60 , C09J1/00
Abstract: The ionic liquid-based coating is a coating for both porous and nonporous materials. As non-limiting examples, a porous substrate coated with the ionic liquid-based coating may be used to disinfect and remove microorganisms from air and water, to provide an antimicrobial surface for preventing microbial contamination, or to enhance filtration efficiency of the porous material for airborne and waterborne particulate matter without increasing flow resistance. As a further non-limiting example, a nonporous substrate coated with the ionic liquid-based coating may be used to form a surface capable of self-disinfection from microorganisms contacting surface. The ionic liquid-based coating includes at least one ionic liquid, an adhesive, and at least one additive, which may be a disinfectant, a viscosity modifier, a pH buffer, a fragrance, or combinations thereof.
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公开(公告)号：US11628231B2
公开(公告)日：2023-04-18
申请号：US16843279
申请日：2020-04-08
Inventor： King Lun Yeung , Qing Chang , Nga Ki Wong , Ning Zhan , Wei Han , Joseph Kai Cho Kwan , Javier Lopez Navas
Abstract: Microbial disinfection is performed using continuous or intermittent lighting using one or more narrow wavelength light sources. The light sources illuminate with narrow wavelength characteristics. The lighting provides a sufficiently high intensity for rapid microbial disinfection process, while reducing the average energy consumption for microbial disinfection during the microbial disinfection process by targeting multiple cellular sites along different inactivation pathways.
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公开(公告)号：US10577264B2
公开(公告)日：2020-03-03
申请号：US14442588
申请日：2013-11-21
Inventor： King Lun Yeung , Joseph Kai Cho Kwan , Siu Ming Kwan , Ka Wo Lam
Abstract: The present disclosure relates to a micro-mini pulsed electric field (PEF) device for point-of-use disinfection of drinking water. The pulsed electric field device comprises micro-engineered electrodes and a low-voltage pulsed electric field generator circuit. A pulsed electric field is generated across a micro-gap between the electrodes to achieve disinfection of drinking water.
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