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    Biomass selection and control for continuous flow granular/flocculent activated sludge processes
    3.
    发明授权
    Biomass selection and control for continuous flow granular/flocculent activated sludge processes 有权

    公开(公告)号：US11912592B2

    公开(公告)日：2024-02-27

    申请号：US17445548

    申请日：2021-08-20

    申请人： Ovivo Inc.

    发明人： Hiren Trivedi ,  John Vorwaller ,  Tyson Beaman ,  Sophia Baker ,  Sergio Pino-Jelcic ,  David Stensel

    IPC分类号： C02F1/52 ,  C02F1/00 ,  C02F3/02

    CPC分类号： C02F1/52 ,  C02F3/02 ,  C02F2001/007 ,  C02F2301/046

    摘要： A continuous flow granular/flocculent sludge wastewater process selects for granule biomass capable of nitrogen and phosphorus removal and controls granule size and concentration of granular and flocculent sludge for optimal nutrient, organic, and solids removal in a smaller footprint. A series of biological process zones lead to a secondary clarifier. Mixed liquor sludge, preferably from an aerobic zone, goes through a classifier or separator processing flow from the aerobic zone, to the secondary clarifier. In a sidestream process that can be included a portion of sludge preferably from an aerobic zone goes through a classifier or separator to selectively produce a granular-rich effluent, and the clarifier may also have a separator to further concentrate granular biomass, most of which is cycled back to an initial multi-stage anaerobic process zone. The anaerobic zone is structured and operated to encourage growth of granules in subsequent process zones.

    Biomass selection and control for continuous flow granular/flocculent activated sludge processes
    6.
    发明授权
    Biomass selection and control for continuous flow granular/flocculent activated sludge processes 有权

    公开(公告)号：US11851352B2

    公开(公告)日：2023-12-26

    申请号：US17445558

    申请日：2021-08-20

    申请人： Ovivo Inc.

    发明人： Hiren Trivedi ,  John Vorwaller ,  Tyson Beaman ,  Sophia Baker ,  Sergio Pino-Jelcic ,  David Stensel

    IPC分类号： C02F1/52 ,  C02F3/02 ,  C02F1/00

    CPC分类号： C02F1/52 ,  C02F3/02 ,  C02F2001/007 ,  C02F2301/046

    摘要： A continuous flow granular/flocculent sludge wastewater process selects for granule biomass capable of nitrogen and phosphorus removal and controls granule size and concentration of granular and flocculent sludge for optimal nutrient, organic, and solids removal in a smaller footprint. A series of biological process zones lead to a secondary clarifier. Mixed liquor sludge, preferably from an aerobic zone, goes through a classifier or separator processing flow from the aerobic zone, to the secondary clarifier. In a sidestream process that can be included a portion of sludge preferably from an aerobic zone goes through a classifier or separator to selectively produce a granular-rich effluent, and the clarifier may also have a separator to further concentrate granular biomass, most of which is cycled back to an initial multi-stage anaerobic process zone. The anaerobic zone is structured and operated to encourage growth of granules in subsequent process zones.

    Water hygiene improving system and methods
    7.
    发明授权
    Water hygiene improving system and methods 有权

    公开(公告)号：US11795085B2

    公开(公告)日：2023-10-24

    申请号：US17354025

    申请日：2021-06-22

    申请人： Seccua Holding AG

    发明人： Michael Hank ,  Yannick Buntig

    IPC分类号： C02F9/00 ,  E03C1/10 ,  F24D3/00 ,  C02F1/28 ,  C02F1/44 ,  C02F3/02

    CPC分类号： C02F9/00 ,  E03C1/10 ,  C02F1/283 ,  C02F1/44 ,  C02F3/02 ,  C02F2305/06 ,  C02F2307/14 ,  F24D3/00

    摘要： A water hygiene improving system and method are provided which may include and utilize one or more water hygiene improving devices which may be coupled to a building water supply network at any number of locations so that water passing through each water hygiene improving device is returned to the building water supply network. The water hygiene improving device may include one or more membrane filtration systems and optionally one or more bioreactors. The system and method include a new and innovative approach for surviving or improving water hygiene within the whole water supply network of new or existing buildings, for prevention of their contamination with Legionella or other pathogens, general limitation of biofilm growth and their negative effects on water hygiene, also at point of use (POU), and water distribution within new or existing buildings by limitation of incoming nutrients, bacteria and other microorganisms at point of entry (POE) of buildings or at other locations of the water supply network within the building.