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    Diffusion element
    2.
    发明授权
    Diffusion element 失效
    扩散元素

    公开(公告)号：US4261933A

    公开(公告)日：1981-04-14

    申请号：US952892

    申请日：1978-10-19

    Applicant: Lloyd Ewing ,  David T. Redmon

    Inventor： Lloyd Ewing ,  David T. Redmon

    IPC: B01F3/04 ,  C02F3/20 ,  C04B38/00 ,  C02F1/72

    CPC classification number: C04B38/007 ,  B01F3/04262 ,  C02F3/20 ,  B01F2003/04297 ,  B01F2003/0439 ,  Y02W10/15

    Abstract: Gas diffusion elements, formed of a body of solid particles which has been shaped, pressed and rendered coherent by bonding or sintering in a compacted form having pores, and having an enhanced apparent volumetric compression ratio in a central zone thereof, are disclosed. Such elements have a generally horizontal portion including an upper gas discharge surface having a bubble release pressure in water, by a test disclosed herein, in the range of about 2 to about 20 inches of water. Among the preferred embodiments is an element whose gas discharge surface has the property that its coefficient of variation is not greater than about 0.25, based on the values of bubble release pressure at a plurality of points over said surface. Such elements may provide improved gas, e.g. oxygen, transfer efficiency, and therefore hold promise of improving the efficiency and economics of gas transfer processes, such as for instance treatment of sewage or other waste water with air, oxygen and/or ozone.

    Abstract translation: 公开了一种固体颗粒体形成的气体扩散元件，其通过在具有孔隙的压实形式的结合或烧结而被成形，压制和凝固而形成，并且在其中心区域具有增强的表观体积压缩比。 这种元件具有大致水平的部分，包括在水中具有气泡释放压力的上部气体排出表面，通过本文公开的测试，在约2至约20英寸水的范围内。 在优选实施方案中，基于在所述表面上的多个点处的气泡释放压力的值，其气体排放表面具有其变异系数不大于约0.25的性质。 这样的元件可以提供改进的气体，例如 氧气，转移效率，因此有希望提高气体转移过程的效率和经济性，例如用空气，氧气和/或臭氧处理污水或其他废水。

    Liquid treatment process with in-plant pressure monitoring of submerged diffusers
    3.
    发明授权
    Liquid treatment process with in-plant pressure monitoring of submerged diffusers 失效
    液体处理过程与淹没扩散器的植物内压力监测

    公开(公告)号：US06475395B1

    公开(公告)日：2002-11-05

    申请号：US08488281

    申请日：1995-06-07

    Applicant: Frank L. Schmit ,  Lloyd Ewing ,  David T. Redmon

    Inventor： Frank L. Schmit ,  Lloyd Ewing ,  David T. Redmon

    IPC: C02F100

    CPC classification number: B01F3/04241 ,  B01F3/0412 ,  B01F3/04262 ,  B01F15/00025 ,  B01F2003/04177 ,  B01F2003/04276 ,  B01F2003/04297 ,  C02F1/76 ,  C02F3/20 ,  C02F2209/03 ,  Y02W10/15 ,  Y10S261/70

    Abstract: The disclosure relates to obtaining dynamic wet pressure in a wastewater treatment plant. A difusser submerged in wastewater is connected to an air supply. This diffuser has an air flow regulator, a diffusion element to discharge the air into the wastewater, and a plenum situated between the element and the flow regulator. Pressure taps sense pressure in the pipe and the plenum. Manometers are used to determine hydrostatic head, pressure drop across the element, and pressure drop across the air flow regulator. Air flow regulator pressure drop and pressure/flow characteristics may be used, with other required information, to calculate dynamic wet pressure across the diffusion element.

    Abstract translation: 本公开涉及在废水处理设备中获得动态湿压力。 浸没在废水中的二极管连接到空气源。 该扩散器具有空气流量调节器，用于将空气排放到废水中的扩散元件，以及位于元件和流量调节器之间的增压室。 压力水龙头检测管道和气室中的压力。 压力表用于确定静压头，元件上的压降以及气流调节器上的压降。 可以使用空气流量调节器压降和压力/流量特性以及其他所需的信息来计算跨越扩散元件的动态湿压力。

    Aeration system apparatus with source of in situ cleaning agent and pressure monitoring connection for submerged diffuser
    4.
    发明授权
    Aeration system apparatus with source of in situ cleaning agent and pressure monitoring connection for submerged diffuser 失效
    具有原位清洗剂来源的曝气系统装置和浸没式扩散器的压力监测连接

    公开(公告)号：US06200468B1

    公开(公告)日：2001-03-13

    申请号：US08272527

    申请日：1994-07-11

    Applicant: Frank L. Schmit ,  Lloyd Ewing ,  David T. Redmon

    Inventor： Frank L. Schmit ,  Lloyd Ewing ,  David T. Redmon

    IPC: B08B300

    CPC classification number: B01F3/04241 ,  B01F3/0412 ,  B01F3/04262 ,  B01F15/00025 ,  B01F2003/04177 ,  B01F2003/04276 ,  B01F2003/04297 ,  C02F1/76 ,  C02F3/20 ,  C02F2209/03 ,  Y02W10/15 ,  Y10S261/70

    Abstract: A liquid treatment apparatus comprising a gas distribution network in a water impound; a device for introducing treating gas into the network; a source of cleaning agent; a device for intermittently introducing the cleaning agent into the network alone or in admixture with the treating gas; a plurality of synthetic thermoplastic or thermoset resin plenums; a plurality of a least ten diffusion elements sealingly engaged and in communication with the plenums for receiving the treating gas and cleaning agent, the elements having air diffusion pores extending therethrough, but being free of through-holes other than air diffusion pores, the pores defining paths for discharge of the treating gas and cleaning agent and which exhibit an increase in dynamic wet pressure and/or bubble release pressure as a result of deposition of foulants; retaining ring engaging the diffusion elements about their peripheries for securing the elements to the plenums; sealing device adjacent the peripheries of the diffusion elements for preventing leakage of air from the plenums past the peripheries of the elements; and measuring device for monitoring the operation of the liquid treatment apparatus by measuring changes in operating parameters of the apparatus that indicate dynamic wet pressure changes across the diffusion elements with sufficient precision for initiating the flow of cleaning agent with sufficient frequency for maintaining the dynamic wet pressure across the diffusion elements in a range not to exceed about 25 inches of water gauge above a base condition of the elements.

    Abstract translation: 一种液体处理装置，包括在水中的气体分配网络; 用于将处理气体引入网络的装置; 清洁剂来源; 用于将清洁剂间歇地引入网络中或与处理气体混合的装置; 多个合成热塑性或热固性树脂增压室; 多个至少十个扩散元件，其密封地接合并与用于接收处理气体和清洁剂的气室连通，所述元件具有延伸穿过其中的空气扩散孔，但没有除空气扩散孔以外的通孔，孔定义 用于排出处理气体和清洁剂的路径，并且由于沉积污染物而表现出动态湿压力和/或气泡释放压力的增加; 保持环围绕其周边与扩散元件接合，以将元件固定到通风室; 邻近扩散元件的周边的密封装置，用于防止空气从气室经过元件的周边泄漏; 以及测量装置，用于通过测量装置的操作参数的变化来测量液体处理装置的操作，所述变化指示扩散元件之间的动态湿压变化具有足够的精度，用于以足够的频率启动具有足够频率的清洁剂的流动以保持动态湿压 在不超过元件基础条件以上25英寸水表的范围内的扩散元件。

    Diffusion element with boundary zone treatment
    5.
    发明授权
    Diffusion element with boundary zone treatment 失效
    具有边界区处理的扩散元件

    公开(公告)号：US4288395A

    公开(公告)日：1981-09-08

    申请号：US140505

    申请日：1980-04-15

    Applicant: Lloyd Ewing ,  David T. Redmon ,  William H. Roche

    Inventor： Lloyd Ewing ,  David T. Redmon ,  William H. Roche

    IPC: B01F3/04 ,  C02F3/20 ,  C04B38/00 ,  C02C1/12

    CPC classification number: C04B38/007 ,  B01F3/04262 ,  C02F3/20 ,  B01F2003/04297 ,  B01F2003/0439 ,  Y02W10/15 ,  Y10S261/70

    Abstract: Gas diffusion elements, formed of a body of solid particles which have been shaped, pressed and rendered coherent by bonding or sintering in a compacted form having pores, are disclosed. Said elements include a peripheral, annular zone of relatively small proportions having lesser permeability, greater density or lesser height than at least a portion of the remainder of the element. In accordance with the invention, a boundary zone is provided adjacent to and inwardly of the peripheral zone, in which boundary zone there is a progressive increase, continuous or step-wise, in the apparent volumetric compression ratio of the element, in the direction of the pheripheral zone, or towards a vertical surface which is near the periphery of the element. Such element may provide improved gas, e.g. oxygen transfer efficiency and therefore holds promise of improving the efficiency and economics of gas transfer processes, such as for instance treatment of sewage or other waste water with air, oxygen and/or ozone.

    Abstract translation: 公开了一种固体颗粒体形成的气体扩散元件，其通过以具有孔隙的压实形式的结合或烧结而被成型，压制和变得相干。 所述元件包括比元件的其余部分的至少一部分具有较小透气度，较大密度或较小高度的相对较小比例的周边环形区域。 根据本发明，在周边区域附近设置边界区域，其中边界区域在元件的表观体积压缩比中以连续或逐步的方式逐渐增加，沿着方向 或者朝向靠近元件周边的垂直表面。 这样的元件可以提供改进的气体，例如 氧传递效率，因此有希望提高气体转移过程的效率和经济性，例如用空气，氧气和/或臭氧处理污水或其它废水。

    Diffusion element with boundary zone treatment
    7.
    发明授权
    Diffusion element with boundary zone treatment 失效
    具有边界区处理的扩散元件

    公开(公告)号：US4261932A

    公开(公告)日：1981-04-14

    申请号：US952862

    申请日：1978-10-19

    Applicant: Lloyd Ewing ,  David T. Redmon ,  William H. Roche

    Inventor： Lloyd Ewing ,  David T. Redmon ,  William H. Roche

    IPC: B01F3/04 ,  C02F3/20 ,  C04B38/00 ,  C02F1/72

    CPC classification number: B01F3/04262 ,  C02F3/20 ,  C04B38/007 ,  B01F2003/04297 ,  B01F2003/0439 ,  Y02W10/15

    Abstract: Gas diffusion elements, formed of a body of solid particles which have been shaped, pressed and rendered coherent by bonding or sintering in a compacted form having pores, and having an enhanced apparent volumetric compression ratio in a central zone and in a boundary zone thereof, are disclosed. Such elements have a generally horizontal portion including an upper gas discharge surface having a bubble release pressure in water, by a test disclosed herein, in the range of about 2 to about 20 inches of water. Among the preferred embodiments is an element whose gas discharge surface has the property that its coefficient of variation is not greater than about 0.25, based on the values of bubble release pressure at a plurality of points over said surface. Such elements may provide improved gas, e.g. oxygen, transfer efficiency, and therefore hold promise of improving the efficiency and economics of gas transfer processes, such as for instance treatment of sewage or other wastewater with air, oxygen and/or ozone.

    Abstract translation: 由固体颗粒体形成的气体扩散元件，其通过以具有孔的压实形式的结合或烧结而成形，压制并变得相干，并且在中心区域及其边界区域具有增强的表观体积压缩比， 被披露。 这种元件具有大致水平的部分，包括在水中具有气泡释放压力的上部气体排出表面，通过本文公开的测试，在约2至约20英寸水的范围内。 在优选实施方案中，基于在所述表面上的多个点处的气泡释放压力的值，其气体排放表面具有其变异系数不大于约0.25的性质。 这样的元件可以提供改进的气体，例如 氧气，转移效率，因此有希望提高气体转移过程的效率和经济性，例如用空气，氧气和/或臭氧处理污水或其他废水。

    Apparatus for in place gas cleaning of diffusion elements
    8.
    发明授权
    Apparatus for in place gas cleaning of diffusion elements 失效
    用于放置气体清洁扩散元件的装置

    公开(公告)号：US5328601A

    公开(公告)日：1994-07-12

    申请号：US420245

    申请日：1989-10-12

    Applicant: Frank L. Schmidt ,  Lloyd Ewing ,  David T. Redmon

    Inventor： Frank L. Schmidt ,  Lloyd Ewing ,  David T. Redmon

    IPC: B01F3/04 ,  B01F15/00 ,  C02F3/20 ,  B08B3/00 ,  B08B5/00

    CPC classification number: B01F15/00025 ,  B01F3/0412 ,  B01F3/04241 ,  B01F3/04262 ,  C02F3/20 ,  B01F2003/04177 ,  B01F2003/04276 ,  B01F2003/04297 ,  Y02W10/15

    Abstract: Cleaning of multi-pore diffusion elements in place with cleaning gases while submerged in liquid media by applying said elements in improved gas cleaning apparatus. Such apparatus may for example include diffusion element retaining rings or other retaining devices, positioned at the peripheries of the respective elements, for securing them in gas-tight relationship with their respective plenums for preventing escape of treating and cleaning gas. Another aspect of the apparatus includes diffusers having diffusion elements with upper and lower surfaces bounded by porous peripheral sides, said diffusers also including apparatus for preventing escape of air through the element sides. In another embodiment of diffusers with diffusion elements having upper and lower surfaces bounded by peripheral sides, there are plenums comprising gas tight enclosures that enclose these lower surfaces and that include upstanding walls facing and adjacent to said sides. In yet another embodiment, upward force exerted on diffusion elements by treating gas under pressure is employed to force the elements upwardly against peripheral sealing members and overlying members of peripheral retainers to increase the sealing integrity of the sealing members.

    Abstract translation: 通过在改进的气体清洁装置中施加所述元件，将多孔扩散元件清洁到具有清洁气体的同时浸没在液体介质中。 这样的装置可以例如包括位于各个元件的周边的扩散元件保持环或其它保持装置，用于将它们与它们各自的气室保持密封的关系，以防止处理和清洁气体的逸出。 该装置的另一方面包括具有扩散元件的扩散器，其具有由多孔周边侧面限定的上表面和下表面，所述扩散器还包括用于防止空气通过元件侧逸出的装置。 在具有扩散元件的扩散元件的另一个实施例中，具有由外围边界限定的上表面和下表面的扩散器，其中包括封闭这些下表面并且包括面向和邻近所述侧面的直立壁的气密封壳的增压室。 在另一个实施例中，采用通过在压力下处理气体而施加在扩散元件上的向上的力，以将元件向上抵靠周边密封构件和外围保持器的上部构件以增加密封构件的密封完整性。

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