Apparatus and method to prevent downward flow of liquid during a gas only washing cycle

    公开(公告)号:US12059637B2

    公开(公告)日:2024-08-13

    申请号:US17401086

    申请日:2021-08-12

    发明人: Matthew Roberts

    摘要: Devices and methods associated with these devices for significantly reducing or eliminating liquid (e.g., water) in a water or wastewater treatment unit above the underdrain from moving downwardly into the underdrain during an air only wash cycle of the treatment unit. The treatment unit can take many forms including but not limited to an upflow filter and a downflow filter. The treatment unit may include a filter bed having one or more layers of filter media supported by gravel above the underdrain. The treatment unit may also include an underdrain having a porous plate, slotted plate or slotted upper structure that obviates the need for gravel. Positive pressure is provided to the underdrain to overcome the downward force of the driving head in the treatment unit to significantly reduce or prevent liquid present in the treatment unit above the underdrain from moving downwardly into the underdrain.

    APPARATUS AND METHOD TO PREVENT DOWNWARD FLOW OF LIQUID DURING A GAS ONLY WASHING CYCLE

    公开(公告)号:US20230053228A1

    公开(公告)日:2023-02-16

    申请号:US17401086

    申请日:2021-08-12

    发明人: Matthew Roberts

    摘要: Devices and methods associated with these devices for significantly reducing or eliminating liquid (e.g., water) in a water or wastewater treatment unit above the underdrain from moving downwardly into the underdrain during an air only wash cycle of the treatment unit. The treatment unit can take many forms including but not limited to an upflow filter and a downflow filter. The treatment unit may include a filter bed having one or more layers of filter media supported by gravel above the underdrain. The treatment unit may also include an underdrain having a porous plate, slotted plate or slotted upper structure that obviates the need for gravel. Positive pressure is provided to the underdrain to overcome the downward force of the driving head in the treatment unit to significantly reduce or prevent liquid present in the treatment unit above the underdrain from moving downwardly into the underdrain.

    Devices and methods for moving, removing and/or installing one or more components of a treatment unit

    公开(公告)号:US12083451B2

    公开(公告)日:2024-09-10

    申请号:US17373971

    申请日:2021-07-13

    IPC分类号: B01D24/46 B01D24/20

    摘要: Devices and methods associated therewith for facilitating movement, removal and/or installation of components from treatment units (e.g., water treatment units and wastewater treatment units). The treatment unit can take the form of a granular media filter (e.g., upflow filter, downflow filter or bi-flow filter) or a sludge collection basin. One preferred device is one or more floats facilitating safe removal of components of a treatment unit. The float(s) can be operably associated with an air scour system of a water filter to remove the air scour system from a granular media filter bed. The float(s) can be operably associated with a collection grid of a sludge collection container facilitating safe removal of the collection grid from the sludge collection container. Another preferred device is a flexible piping/conduit operably connected to a pressurized air source and an air scour system to assist in removal/installation of the air scour system.

    DEVICES AND METHODS FOR MOVING, REMOVING AND/OR INSTALLING ONE OR MORE COMPONENTS OF A TREATMENT UNIT

    公开(公告)号:US20210339173A1

    公开(公告)日:2021-11-04

    申请号:US17373971

    申请日:2021-07-13

    IPC分类号: B01D24/46 B01D24/20

    摘要: Devices and methods associated therewith for facilitating movement, removal and/or installation of components from treatment units (e.g., water treatment units and wastewater treatment units). The treatment unit can take the form of a granular media filter (e.g., upflow filter, downflow filter or bi-flow filter) or a sludge collection basin. One preferred device is one or more floats facilitating safe removal of components of a treatment unit. The float(s) can be operably associated with an air scour system of a water filter to remove the air scour system from a granular media filter bed. The float(s) can be operably associated with a collection grid of a sludge collection container facilitating safe removal of the collection grid from the sludge collection container. Another preferred device is a flexible piping/conduit operably connected to a pressurized air source and an air scour system to assist in removal/installation of the air scour system.

    Devices and methods for moving, removing and/or installing one or more components of a treatment unit

    公开(公告)号:US11090586B2

    公开(公告)日:2021-08-17

    申请号:US16156415

    申请日:2018-10-10

    IPC分类号: B01D24/26 B01D24/20 B01D24/46

    摘要: Devices and methods associated therewith for facilitating movement, removal and/or installation of components from treatment units (e.g., water treatment units and wastewater treatment units). The treatment unit can take the form of a granular media filter (e.g., upflow filter, downflow filter or bi-flow filter) or a sludge collection basin. One preferred device is one or more floats facilitating safe removal of components of a treatment unit. The float(s) can be operably associated with an air scour system of a water filter to remove the air scour system from a granular media filter bed. The float(s) can be operably associated with a collection grid of a sludge collection container facilitating safe removal of the collection grid from the sludge collection container. Another preferred device is a flexible piping/conduit operably connected to a pressurized air source and an air scour system to assist in removal/installation of the air scour system.