公开(公告)号：US11981591B2

公开(公告)日：2024-05-14

申请号：US18362345

申请日：2023-07-31

申请人： Imam Abdulrahman Bin Faisal University

发明人： Cevat Yaman ,  Omer Aga

IPC分类号： C02F3/04 ,  C02F1/40 ,  C02F3/10 ,  C02F3/28 ,  C02F3/30 ,  C02F3/00

CPC分类号： C02F3/04 ,  C02F1/40 ,  C02F3/101 ,  C02F3/103 ,  C02F3/104 ,  C02F3/288 ,  C02F3/30 ,  C02F2003/001 ,  C02F3/301 ,  C02F3/302 ,  C02F2301/046 ,  Y02W10/10 ,  Y02W10/37

摘要： Water treatment structures may have at least a first geotextile fabric layer; a second geotextile fabric layer; a third geotextile fabric layer; a first filler layer with plastic particles, arranged between the first and second geotextile fabric layers; and a second filler layer with plastic particles, arranged between the second and third geotextile fabric layers, wherein the geotextile fabric layers and the filler layers are within a housing, and wherein the structure is configured such that contaminated water proceeds sequentially through the first geotextile fabric layer, the first filler layer, the second geotextile fabric layer, the second filler layer, and the third geotextile fabric layer. Methods of treating wastewater may involve passing wastewater, after optional oxygenating and pre-filtering, through such alternating layers of geotextile, preferably nonwoven, and polymer particles.

公开(公告)号：US11945739B2

公开(公告)日：2024-04-02

申请号：US17436292

申请日：2019-03-11

申请人： GOHDA WATER TREATMENT TECHNOLOGY CO., INC.

发明人： Toshihisa Gohda

IPC分类号： C02F3/00 ,  C02F3/12 ,  G01N33/18

CPC分类号： C02F3/006 ,  C02F3/1236 ,  G01N33/18 ,  C02F2203/006

摘要： The present invention relates to a testing method for testing a state of an aeration tank in a wastewater treatment facility that uses activated sludge. The testing method comprises obtaining a difference between: a sedimentation amount when a given period of time has elapsed after an activated sludge mixed liquid collected from the aeration tank and water having a higher dissolved oxygen concentration than the activated sludge mixed liquid are poured into the same container and mixed together; and a sedimentation amount when a period of time equal to the given period of time has elapsed after the activated sludge mixed liquid collected from the aeration tank and water having a lower dissolved oxygen concentration than the activated sludge mixed liquid are poured into the same container and mixed together.

公开(公告)号：US11932565B2

公开(公告)日：2024-03-19

申请号：US17464197

申请日：2021-09-01

申请人： AQUACYCL, INC.

发明人： Orianna Bretschger ,  Sofia Malinova Babanova ,  Carlo Abraham Angulo Rodriguez ,  Jaime Octavio García Cornejo ,  Pedro Izarael Huerta Virgen ,  Ryoji Naito

IPC分类号： C02F3/00 ,  H01M8/16

CPC分类号： C02F3/005 ,  H01M8/16 ,  C02F2201/007

摘要： Disclosed are modular microbial fuel cell (MFC) devices, systems and methods for treating wastewater and generating electrical energy through a bioelectrochemical waste-to-energy conversion process. In some aspects, a modular MFC system includes a wastewater pretreatment system to receive and pre-treat raw wastewater for feeding pre-treated wastewater for bioelectrochemical processing; one or more modular MFC devices to bioelectrochemically process the pre-treated wastewater by concurrently generating electrical energy and digesting organic contaminants and particulates in the wastewater to yield treated, cleaner water; and a water collection module to receive the treated water from the one or more modular MFC devices and store the treated water and/or route the treated water from the system.

公开(公告)号：US11926547B2

公开(公告)日：2024-03-12

申请号：US17464478

申请日：2021-09-01

申请人： AQUACYCL, INC.

发明人： Sofia Malinova Babanova ,  Orianna Bretschger ,  Jaime Octavio García Cornejo ,  Jason Daniel Jones

IPC分类号： C02F3/08 ,  C02F3/00 ,  C02F3/10 ,  C02F3/34 ,  H01M8/16 ,  C02F101/10

CPC分类号： C02F3/08 ,  C02F3/005 ,  C02F3/006 ,  C02F3/10 ,  C02F3/103 ,  C02F3/345 ,  H01M8/16 ,  C02F2101/101 ,  C02F2209/22 ,  C02F2209/38

摘要： Disclosed are floating micro-aeration unit (FMU) devices, systems and methods for biological sulfide removal from water/wastewater bodies and streams. In some aspects, a system includes a manifold structure including one or more opening to flow air out of an interior of the manifold structure; one or more support structures connected to the manifold structure, in which the one or more support structures are floatable on a surface of a fluid that includes water or a wastewater; and an air source that flows air to the manifold structure, such that the manifold structure supplies the air containing a predetermined amount of oxygen (e.g., less than 0.1 mg/L of oxygen) to oxidize sulfide of the fluid.

公开(公告)号：US20240059595A1

公开(公告)日：2024-02-22

申请号：US18495373

申请日：2023-10-26

申请人： BL TECHNOLOGIES, INC.

发明人： Martha DAGNEW ,  Kyle WALDNER

IPC分类号： C02F3/20 ,  C02F3/00 ,  C02F3/12

CPC分类号： C02F3/208 ,  C02F3/006 ,  C02F3/1273 ,  C02F2209/225 ,  C02F2303/14

摘要： An overgrowth of worms can reduce the effluent quality of a membrane aerated biofilm reactor. A method of controlling the growth of worms in a membrane aerated biofilm includes discontinuing all oxygen sources to a tank containing the biofilm and fluid flows flow into the tank. The tank is maintained in this idle condition for a period of time sufficient to kill at least some of the worms living in the biofilm. The method may be applied periodically to inhibit the formation of an excessive population of worms or retroactively to reduce an already excessive population of worms.

公开(公告)号：US11858837B2

公开(公告)日：2024-01-02

申请号：US17099112

申请日：2020-11-16

申请人： Evoqua Water Technologies LLC

发明人： Timothy Lee Lindemann ,  Michael Casey Whittier

IPC分类号： C02F3/00 ,  C02F3/12 ,  G16H10/40

CPC分类号： C02F3/006 ,  C02F3/1263 ,  G16H10/40 ,  C02F2209/10 ,  C02F2209/42 ,  Y02W10/10 ,  Y02W10/37

摘要： A sequencing batch reactor includes a liquid level sensor configured to measure a level of liquid in the vessel and provide an indication of the level of the liquid to a controller and a sludge detector configured to measure a position of an interface between sludge and solids-lean supernatant in the vessel and to provide an indication of the position of the interface to the controller. The controller is configured to perform a comparison between the level of the liquid and the position of the interface and control an amount of solids-lean supernatant removed from the vessel during the decant stage based on the comparison.

公开(公告)号：US11851356B2

公开(公告)日：2023-12-26

申请号：US17781111

申请日：2021-01-05

申请人： THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK

发明人： Frank M. Russo

IPC分类号： C02F3/30 ,  C02F3/00 ,  C02F103/00

CPC分类号： C02F3/302 ,  C02F3/006 ,  C02F2103/005 ,  C02F2209/03 ,  C02F2301/046

摘要： A method and system for the nitrification and denitrification of septic effluent, e.g. from a domestic septic tank, is disclosed comprising a variable speed pump system for constant continuous flow and a recycle mechanism to increase efficacy in producing a final denitrified effluent suitable for discharge to ground or surface waters.

公开(公告)号：US11845680B2

公开(公告)日：2023-12-19

申请号：US16645082

申请日：2018-09-07

申请人： SENTRY: WATER MONITORING AND CONTROL INC.

发明人： Patrick Desmond Kiely ,  Jack R. Ambler ,  Colin Ragush

IPC分类号： C02F3/00 ,  C02F3/30 ,  C12Q1/02 ,  G01N27/327 ,  G01N33/92

CPC分类号： C02F3/006 ,  C02F3/308 ,  C12Q1/02 ,  G01N27/327 ,  G01N33/92 ,  C02F2209/12 ,  C02F2209/36 ,  C02F2305/06 ,  G01N2405/00

摘要： The present disclosure generally relates to a system for monitoring and/or controlling the delivery of one or more organic carbon compounds to a wastewater treatment system. The system comprises a bio-electrochemical sensor to monitor metabolic activity of a population of exo-electrogenic bacteria and provide an electrical output corresponding with the metabolic activity, the bio-electrochemical sensor comprising an electrode pair and a power source to deliver a voltage across the electrode pair, and an electrical output analyzer to analyze the electrical output and correlate the electrical output with a value representing the amount of the one or more organic carbon compounds in the wastewater treatment system. A method and sensor for monitoring and/or controlling the delivery of one or more organic carbon compounds to a wastewater treatment system are also provided.

公开(公告)号：US20230365446A1

公开(公告)日：2023-11-16

申请号：US18029631

申请日：2021-10-01

申请人： SUEZ INTERNATIONAL ,  NEWPORT GMBH

发明人： Clément ROCHE ,  Sylvain DONNAZ ,  Sudhir N. MURTHY ,  Bernhard WETT

IPC分类号： C02F3/00 ,  C02F3/08 ,  C02F3/10 ,  C02F3/12

CPC分类号： C02F3/006 ,  C02F3/082 ,  C02F3/102 ,  C02F3/12 ,  C02F2203/004 ,  C02F2209/01

摘要： A method for controlled biomass densification in a biological treatment of a raw influent, includes a step of subjecting the raw influent to a biological treatment of free suspended biomass, thereby producing a biomass comprising activated sludge; a step of separation and/or clarification of the activated sludge, thereby producing an effluent and a RAS; a step of extracting at least part of the RAS and/or part of the activated sludge as a first source of a WAS; a step of external density-based selection of at least part of the RAS and/or part of the activated sludge, thereby generating an overflow intended to be extracted as a second source of WAS, and an underflow comprising dense biomass aggregates; a step of producing and/or sustaining dense biomass aggregates, such as aerobic granular sludge or biofilm, by a dense biomass aggregates generating process, with at least part of the raw influent; a step of subjecting the dense biomass aggregates to the biological treatment; a step of subjecting the dense biomass aggregates of the underflow to the biological treatment and/or to the dense biomass aggregates generating process; thereby obtaining a densified biomass.

公开(公告)号：US11802065B2

公开(公告)日：2023-10-31

申请号：US17336814

申请日：2021-06-02

申请人： Conly L. Hansen ,  Leonard Alan Collins ,  Jaron Conly Hansen

发明人： Conly L. Hansen ,  Leonard Alan Collins ,  Jaron Conly Hansen

IPC分类号： C02F3/28 ,  C02F3/00

CPC分类号： C02F3/2866 ,  C02F3/286 ,  C02F3/2846 ,  C02F3/006 ,  C02F2203/006 ,  C02F2209/005 ,  C02F2209/02 ,  C02F2209/03 ,  C02F2209/06 ,  C02F2209/14 ,  C02F2209/40 ,  Y02W10/37

摘要： An induced sludge bed anaerobic reactor system that includes at least two stages of bioreactor processing, a first-stage feeding system, a second-stage feeding system, a pH balancing system, an effluent recirculation system, a gas management system, at least one nitrogen reduction system, and a controller. In addition, the nitrogen reduction system(s) if configured for reducing an amount of one or more nitrogen compounds in a substrate mixture sufficient to procedure a non-toxic substrate mixture with respect to anaerobic digestion of the non-toxic substrate by the induced sludge bed anaerobic reactor system.