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公开(公告)号：US10478757B2
公开(公告)日：2019-11-19
申请号：US15485862
申请日：2017-04-12
发明人： David E. Roeser , Robert J. Green
摘要： A filtration system includes a plurality of underdrain blocks arranged in a side-by-side configuration so as to define a gap therebetween, the gap configured to receive grout. Each underdrain block includes a top wall, a bottom wall, and a plurality of side walls connecting the top wall and the bottom wall. A grout bridge is arranged in the gap between adjacent underdrain blocks so as to form a grout seal between the grout bridge and adjacent side walls of the adjacent underdrain blocks. The adjacent sidewalls each include a rib, each rib defining a slot. The grout bridge is arranged in adjacent slots of the adjacent sidewalls of the adjacent underdrain blocks. A method of arranging a filtration system and a grout bridge are also disclosed.
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公开(公告)号：US10022654B2
公开(公告)日：2018-07-17
申请号：US14107843
申请日：2013-12-16
摘要： A method of distributing gas and liquid through an underdrain system includes: a) positioning an underdrain system on a filter floor, the underdrain system comprising at least one underdrain block and filter media positioned on top of the underdrain block; b) distributing gas sufficiently evenly through the underdrain system at a rate of less than 2 scfm/ft2 by distributing a liquid at a rate of less than 2 gpm/ft2 concurrently with the gas; c) increasing the distribution rate of the liquid, or increasing the distribution rate of the liquid and the distribution rate of the gas; d) stopping the distribution of gas; e) further increasing the distribution rate of the liquid; and f) decreasing the distribution rate of the liquid. A method of distributing gas and liquid during an upflow filtration mode is also included.
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公开(公告)号：US10881989B2
公开(公告)日：2021-01-05
申请号：US15980955
申请日：2018-05-16
发明人： Dean T. Berkebile , Scott R. Cable , John L. Geibel , Robert J. Green , Howard J. Sweeney , Robert Lee Wiley, Jr.
摘要： An underdrain block for filtering water includes a top wall, a bottom wall, and two side walls connecting the top wall to the bottom wall to define an internal chamber. The bottom wall contains a plurality of orifices that allow liquid and solid materials to enter and exit the internal chamber. An underdrain filtering system can be formed by securing an underdrain lateral, which is formed from one or a plurality of underdrain blocks, to a filter floor. Also included is a method of preparing an underdrain lateral for providing even distribution of backwash water along the underdrain lateral and a method of validating even distribution of backwash water across an underdrain lateral.
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公开(公告)号：US20180333659A1
公开(公告)日：2018-11-22
申请号：US15980955
申请日：2018-05-16
发明人： Dean T. Berkebile , Scott R. Cable , John L. Geibel , Robert J. Green , Howard J. Sweeney , Robert Lee Wiley, Jr.
CPC分类号： B01D24/4636 , B01D24/001 , B01D24/14
摘要： An underdrain block for filtering water includes a top wall, a bottom wall, and two side walls connecting the top wall to the bottom wall to define an internal chamber. The bottom wall contains a plurality of orifices that allow liquid and solid materials to enter and exit the internal chamber. An underdrain filtering system can be formed by securing an underdrain lateral, which is formed from one or a plurality of underdrain blocks, to a filter floor. Also included is a method of preparing an underdrain lateral for providing even distribution of backwash water along the underdrain lateral and a method of validating even distribution of backwash water across an underdrain lateral.
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公开(公告)号：US10881990B2
公开(公告)日：2021-01-05
申请号：US15982369
申请日：2018-05-17
摘要： A filter media retainer has a plate having a first end wall, a second end wall, and a pair of longitudinal sidewalls connected to opposing sides of the first end wall and the second end wall. The plate has a top surface opposite a bottom surface. A plurality of hopper-shaped compartments are formed on the top surface and have a first sloped wall and a second sloped wall angled toward the first sloped wall in a direction from the top surface toward the bottom surface. The plate further has a top sidewall on the top surface of the plate separating adjacent hopper-shaped compartments from each other. The plate further has at least one first slot extending through at least one of the first sloped wall and the second sloped wall, and at least one second slot extending through the top sidewall.
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公开(公告)号：US20180333660A1
公开(公告)日：2018-11-22
申请号：US15982369
申请日：2018-05-17
CPC分类号： B01D24/4636 , B01D24/22 , B01D24/24
摘要： A filter media retainer has a plate having a first end wall, a second end wall, and a pair of longitudinal sidewalls connected to opposing sides of the first end wall and the second end wall. The plate has a top surface opposite a bottom surface. A plurality of hopper-shaped compartments are formed on the top surface and have a first sloped wall and a second sloped wall angled toward the first sloped wall in a direction from the top surface toward the bottom surface. The plate further has a top sidewall on the top surface of the plate separating adjacent hopper-shaped compartments from each other. The plate further has at least one first slot extending through at least one of the first sloped wall and the second sloped wall, and at least one second slot extending through the top sidewall.
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公开(公告)号：US20170296945A1
公开(公告)日：2017-10-19
申请号：US15485862
申请日：2017-04-12
发明人： David E. Roeser , Robert J. Green
IPC分类号： B01D24/00 , B01D24/46 , B01D24/24 , B01D33/056
CPC分类号： B01D24/24 , B01D24/001 , B01D2201/34 , Y10T29/49828 , Y10T29/49883
摘要： A filtration system includes a plurality of underdrain blocks arranged in a side-by-side configuration so as to define a gap therebetween, the gap configured to receive grout. Each underdrain block includes a top wall, a bottom wall, and a plurality of side walls connecting the top wall and the bottom wall. A grout bridge is arranged in the gap between adjacent underdrain blocks so as to form a grout seal between the grout bridge and adjacent side walls of the adjacent underdrain blocks. The adjacent sidewalls each include a rib, each rib defining a slot. The grout bridge is arranged in adjacent slots of the adjacent sidewalls of the adjacent underdrain blocks. A method of arranging a filtration system and a grout bridge are also disclosed.
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8.发明申请Gas-Liquid Distribution Technique for Water or Wastewater Filters Using Underdrains 有权使用井下水或污水过滤器的气液分配技术公开(公告)号：US20140166593A1
公开(公告)日：2014-06-19
申请号：US14107843
申请日：2013-12-16
CPC分类号： B01D24/24 , B01D24/16 , B01D24/266 , B01D24/4636
摘要： A method of distributing gas and liquid through an underdrain system includes: a) positioning an underdrain system on a filter floor, the underdrain system comprising at least one underdrain block and filter media positioned on top of the underdrain block; b) distributing gas sufficiently evenly through the underdrain system at a rate of less than 2 scfm/ft2 by distributing a liquid at a rate of less than 2 gpm/ft2 concurrently with the gas; c) increasing the distribution rate of the liquid, or increasing the distribution rate of the liquid and the distribution rate of the gas; d) stopping the distribution of gas; e) further increasing the distribution rate of the liquid; and f) decreasing the distribution rate of the liquid. A method of distributing gas and liquid during an upflow filtration mode is also included.
摘要翻译： 一种通过下划线系统分配气体和液体的方法包括：a）将下划线系统定位在过滤器底板上，所述下划线系统包括至少一个下划线块和位于底盘顶部的过滤介质; b）通过以小于2gpm / ft2的速率与气体分配液体，以低于2scfm / ft 2的速率将气体充分均匀地分布在下沉系统中; c）提高液体的分布率，或提高液体的分布速率和气体的分布速率; d）停止燃气分配; e）进一步提高液体的分布率; 和f）降低液体的分布速率。 还包括在上流过滤模式期间分配气体和液体的方法。
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