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    Internal electrical connections for concentric tubular electrochemical cells
    164.
    发明授权
    Internal electrical connections for concentric tubular electrochemical cells 有权

    公开(公告)号：US11584665B2

    公开(公告)日：2023-02-21

    申请号：US16603017

    申请日：2018-04-13

    Applicant: Evoqua Water Technologies LLC

    Inventor： Andrew Green ,  Li-Shiang Liang ,  Joshua Griffis ,  Paul Beddoes

    IPC: C25B9/17 ,  C25B11/00 ,  C25B1/04 ,  C02F1/461 ,  C02F1/467 ,  C02F103/08

    Abstract: Self-cleaning electrochemical cells, systems including self-cleaning electrochemical cells, and methods of operating self-cleaning electrochemical cells are disclosed. The self-cleaning electrochemical cell can include a plurality of concentric electrodes disposed in a housing, a fluid channel defined between the concentric electrodes, and an electrical connector positioned at a distal end of a concentric electrode and electrically connected to the electrode. The electrical connectors may be configured to provide a substantially even current distribution to the concentric electrode and minimize a zone of reduced velocity occurring downstream from the electrical connector. The electrical connector may be configured to cause a temperature of an electrolyte solution to increase by less than about 0.5° C. while transmitting at least 100 W of power.

    Highly Configurable Adaptable Mobile Deionization Trailer
    165.
    发明申请
    Highly Configurable Adaptable Mobile Deionization Trailer 有权

    公开(公告)号：US20230038514A1

    公开(公告)日：2023-02-09

    申请号：US17880193

    申请日：2022-08-03

    Applicant: Evoqua Water Technologies LLC

    Inventor： John David Forbes ,  Kodi Marlan Killion

    IPC: C02F1/42 ,  C02F1/00 ,  B01D15/36

    Abstract: Systems for treating water, e.g., mobile deionization systems, are disclosed. The system includes a system inlet connectable to a source of water to be treated; a water distribution manifold connected to the system inlet and including a plurality of valves structured and arranged to provide a configurable flow path along the water distribution manifold; a plurality of water treatment vessels each having an inlet and an outlet connected to the water distribution manifold; and a system outlet connected to the outlet of a last of the plurality of water treatment vessels. The plurality of valves are selectively operable to provide for sections of the water distribution manifold to switch between flowing water into one or more of the plurality of water treatment vessels or receiving water from the one or more of the plurality of water treatment vessels. Methods of treating water using the systems are also disclosed.

    Cooling pond water treatment system
    166.
    发明授权
    Cooling pond water treatment system 有权

    公开(公告)号：US11565959B2

    公开(公告)日：2023-01-31

    申请号：US17232137

    申请日：2021-04-15

    Applicant: Evoqua Water Technologies LLC

    Inventor： Carol Jones ,  Justin Wayne Higgs

    IPC: C02F9/00 ,  C02F103/02 ,  C02F1/50 ,  C02F1/469 ,  C02F1/44 ,  C02F1/70 ,  C02F5/08 ,  C02F1/66

    Abstract: A method of increasing operational efficiency of a power plant includes determining an average rate of accumulation of scale-forming compounds in a cooling water source, directing water from the cooling water source having a first concentration of scale forming compounds through a treatment system to produce a treated water having a lower concentration of scale-forming components than the first concentration by operating the treatment system with operating parameters selected such that a rate of removal of the scale-forming components from the water in the treatment system is greater than the average rate of accumulation of the scale-forming components, directing the treated water back into the cooling water source, and circulating water including the treated water from the cooling water source through a cooling system of the power plant.

    Digester cover left-in-place ballast ring
    167.
    发明授权
    Digester cover left-in-place ballast ring 有权

    公开(公告)号：US11498752B2

    公开(公告)日：2022-11-15

    申请号：US15931674

    申请日：2020-05-14

    Applicant: Evoqua Water Technologies LLC

    Inventor： Matthew P. Bronk ,  Douglas N. Muller ,  Thomas Mangione

    IPC: B21D53/00 ,  B65D88/40 ,  C02F11/04 ,  C02F3/28 ,  C12M1/107 ,  C12M1/00 ,  B22C9/06

    Abstract: A sludge digester including a vessel and floating cover. The vessel includes a sidewall and an interior volume configured to receive and contain sludge. According to one embodiment, the cover comprises a frame structure that is constructed and arranged to form a skirt member formed at a periphery of the cover and extending downwardly into the vessel, and a continuous ballast ring attached to a lower portion of the skirt member and configured to form a trough member with an interior surface of the skirt member. The sludge digester may also include a guide system coupled to the sidewall and the skirt member and configured to allow vertical displacement of the cover with change in volume of at least one of a gas and a sludge contained in the vessel beneath the cover.

    High solids dissolved air flotation system and methods
    168.
    发明授权
    High solids dissolved air flotation system and methods 有权

    公开(公告)号：US11352275B2

    公开(公告)日：2022-06-07

    申请号：US16980605

    申请日：2019-03-13

    Applicant: Evoqua Water Technologies LLC

    Inventor： Argun Olcayto Erdogan ,  Michael L. Doyle

    IPC: C02F3/12 ,  C02F1/24 ,  C02F3/30

    Abstract: A wastewater treatment system including an aeration unit, a contact tank, a dissolved air flotation unit, and a biological treatment unit is disclosed. A method of retrofitting a wastewater treatment system by providing an aeration unit and fluidly connecting the aeration unit to the wastewater treatment system is also disclosed. A method of treating wastewater including aerating wastewater with oxygen, combining the aerated wastewater with activated sludge, floating biosolids from the activated wastewater, and biologically treating the effluent is also disclosed. The method optionally includes combining the floated biosolids with the aerated wastewater and/or activated wastewater. A method of facilitating treatment of high solids content wastewater is also disclosed.

    METHOD FOR THE TREATMENT OF WASTEWATER
    170.
    发明申请
    METHOD FOR THE TREATMENT OF WASTEWATER 有权

    公开(公告)号：US20220073375A1

    公开(公告)日：2022-03-10

    申请号：US17528515

    申请日：2021-11-17

    Applicant: Evoqua Water Technologies LLC

    Inventor： Gerard Willem Smiddy ,  Frank Leslie Smiddy

    IPC: C02F1/28 ,  C02F9/00 ,  C02F1/00 ,  C02F1/38 ,  C02F1/52

    Abstract: A system and method for backwashing a sand filter in a wastewater treatment system. In one aspect, the invention can be a system for backwashing a sand filter comprising: a sand filter configured to remove solids from an untreated wastewater; a container storing chlorine fluidly coupled to the sand filter by a chlorine supply manifold; a flow control mechanism positioned on the chlorine supply manifold between the container and the sand filter, the flow control mechanism alterable between a first position whereby chlorine cannot flow from the container to the sand filter and a second position whereby chlorine flows from the container to the sand filter, the flow control mechanism being biased into the first position; and a processor operably coupled to the flow control mechanism and configured to automatically actuate the flow control mechanism into the second position upon detecting that the sand filter is being backwashed.

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