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1. 发明授权

US07001516B1 Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment system 失效
标题翻译：使用三池污水处理系统从废水中除磷的方法
公开(公告)号：US07001516B1
公开(公告)日：2006-02-21
申请号：US10982331
申请日：2004-11-05
申请人： Sun-Nan Hong , Hong W. Zhao , Richard W. DiMassimo
发明人： Sun-Nan Hong , Hong W. Zhao , Richard W. DiMassimo
IPC分类号： C02F3/30 , B01D21/00
CPC分类号： C02F3/308 , C02F3/1263 , Y02W10/15 , Y10S210/906
摘要： A multi-phase process for removing phosphorus from wastewater in a triple ditch or triple basin system where wastewater influent is sequentially directed to each of the three basins or ditches, sometimes referred to as first and second outer basins and an intermediate basin. During each phase of the process, the mixed liquor in at least one of the basins is subject to settling. In one or more phases of the process, the mixed liquor, in certain basins, is subjected to anaerobic and aerobic treatment. Anaerobic treatment results in the growth or proliferation of phosphorus storing microorganisms. These phosphorus-storing microorganisms take up phosphorus when the mixed liquor is subjected to aerobic conditions. One of the basins, the intermediate basin, can be designed to have a volume greater than either of the first or second outer basins. Further, the triple basin or triple ditch system is designed to transfer mixed liquor suspended solids or biomass from one basin to another. Each outer basin is provided with a submersible pump that is operatively connected to a network of pipes such that mixed liquor suspended solids can be transferred from each of the first and second outer basins to the intermediate basin. Further, mixed liquor suspended solids can be transferred back and forth between the two outer basins.
摘要翻译：一种用于在三沟或三盆系统中从废水中除去磷的多相方法，其中废水流入物顺序地引导到三个盆地或沟渠中的每一个，有时称为第一和第二外盆和中间盆。在该过程的每个阶段期间，至少一个盆地中的混合液体可以沉降。在该方法的一个或多个阶段中，在某些盆地中的混合液体进行厌氧和需氧处理。厌氧处理导致储存微生物的生长或增殖。当混合液经受好氧条件时，这些储存磷的微生物会吸收磷。中间盆之一的盆地之一可以设计成具有比第一或第二外盆中的任一个大的体积。此外，三池或三沟渠系统设计成将混合液悬浮固体或生物质从一个盆地转移到另一个盆地。每个外盆设置有可操作地连接到管网的潜水泵，使得混合液悬浮固体可以从第一和第二外盆中的每一个转移到中间盆。此外，混合液悬浮固体可以在两个外盆之间来回转移。

2. 发明授权

US07459083B1 Method for controlling fouling of a membrane filter 失效
标题翻译：控制膜过滤器结垢的方法
公开(公告)号：US07459083B1
公开(公告)日：2008-12-02
申请号：US11745120
申请日：2007-05-07
申请人： Sun-Nan Hong , Hong W. Zhao , Richard W. DiMassimo
发明人： Sun-Nan Hong , Hong W. Zhao , Richard W. DiMassimo
IPC分类号： C02F3/00
CPC分类号： B01D65/08 , B01D61/22 , B01D2315/06 , B01D2321/02 , B01D2321/185 , C02F3/1273 , C02F3/30 , C02F2209/006 , C02F2209/03 , Y02W10/15
摘要： A membrane bioreactor system includes one or more biological reactors and one or more membrane tanks with each membrane tank having one or more membrane filters. To control membrane fouling, various process control variables are employed. First, the membrane filters are cleaned by an air scouring process where bubbles are moved upwardly adjacent the membrane filters and clean the same in the process. To control membrane fouling, a process is utilized that dynamically varies the air scouring flow rate (V) as a function of transmembrane pressure (TMP). In addition, the process entails allowing permeation to start and stop which results in a series of cycles where each cycle includes a permeation phase and a relaxation phase. The duration of the relaxation phase (TR) and the duration of the permeation phase (TP) is varied from cycle to cycle as a function of one or more process variables including the change in TMP over a selected period within a membrane phase, or the change in TMP over a selected time period spanning at least two membrane phases.
摘要翻译：膜生物反应器系统包括一个或多个生物反应器和一个或多个膜池，每个膜槽具有一个或多个膜过滤器。为了控制膜污染，采用各种过程控制变量。首先，通过空气冲洗过程清洁膜过滤器，其中气泡向上移动到膜过滤器附近并在该过程中将其清洁。为了控制膜污染，使用了作为跨膜压力（TMP）的函数动态地改变空气冲刷流速（V）的过程。此外，该方法允许渗透开始和停止，这导致一系列循环，其中每个循环包括渗透相和松弛阶段。弛豫阶段（TR）的持续时间和渗透期（TP）的持续时间作为一个或多个过程变量的循环周期变化，包括在膜相内的选定时期内的TMP变化，或在选择的时间段内跨越至少两个膜相的TMP变化。

3. 发明申请

US20080277340A1 METHOD FOR CONTROLLING FOULING OF A MEMBRANE FILTER 失效
标题翻译：一种控制膜过滤装置的方法
公开(公告)号：US20080277340A1
公开(公告)日：2008-11-13
申请号：US11745120
申请日：2007-05-07
申请人： Sun-Nan Hong , Hong W. Zhao , Richard W. DiMassimo
发明人： Sun-Nan Hong , Hong W. Zhao , Richard W. DiMassimo
IPC分类号： C02F3/02
CPC分类号： B01D65/08 , B01D61/22 , B01D2315/06 , B01D2321/02 , B01D2321/185 , C02F3/1273 , C02F3/30 , C02F2209/006 , C02F2209/03 , Y02W10/15
摘要： A membrane bioreactor system includes one or more biological reactors and one or more membrane tanks with each membrane tank having one or more membrane filters. To control membrane fouling, various process control variables are employed. First, the membrane filters are cleaned by an air scouring process where bubbles are moved upwardly adjacent the membrane filters and clean the same in the process. To control membrane fouling, a process is utilized that dynamically varies the air scouring flow rate (V) as a function of transmembrane pressure (TMP). In addition, the process entails allowing permeation to start and stop which results in a series of cycles where each cycle includes a permeation phase and a relaxation phase. The duration of the relaxation phase (TR) and the duration of the permeation phase (TP) is varied from cycle to cycle as a function of one or more process variables including the change in TMP over a selected period within a membrane phase, or the change in TMP over a selected time period spanning at least two membrane phases.
摘要翻译：膜生物反应器系统包括一个或多个生物反应器和一个或多个膜池，每个膜槽具有一个或多个膜过滤器。为了控制膜污染，采用各种过程控制变量。首先，通过空气冲洗过程清洁膜过滤器，其中气泡向上移动到膜过滤器附近并在该过程中将其清洁。为了控制膜污染，使用了作为跨膜压力（TMP）的函数动态地改变空气冲刷流速（V）的过程。此外，该方法允许渗透开始和停止，这导致一系列循环，其中每个循环包括渗透相和松弛阶段。弛豫阶段（TR）的持续时间和渗透期（TP）的持续时间作为一个或多个过程变量的循环周期变化，包括在膜相内的选定时期内的TMP变化，或在选择的时间段内跨越至少两个膜相的TMP变化。

4. 发明授权

US07147778B1 Method and system for nitrifying and denitrifying wastewater 有权
标题翻译：硝化和反硝化废水的方法和系统
公开(公告)号：US07147778B1
公开(公告)日：2006-12-12
申请号：US11326538
申请日：2006-01-05
申请人： Richard W. DiMassimo , Sun-Nan Hong , Hong Zhao , Luther Wood
发明人： Richard W. DiMassimo , Sun-Nan Hong , Hong Zhao , Luther Wood
IPC分类号： C02F3/30
CPC分类号： C02F3/302 , C02F3/121 , C02F3/1263 , C02F3/1268 , C02F3/301 , Y02W10/15 , Y10S210/903 , Y10S210/906
摘要： A wastewater treatment system is provided that includes first and second reactors, each operative to nitrify or denitrify wastewater contained therein. Downstream from the first and second reactors is a membrane reactor that operates under aerobic conditions and includes one or more submersed membranes for separating solids. Extending between the membrane reactor and each of the first and second reactors is a return activated sludge line with appropriate controls for permitting return activated sludge to be directed to one of the reactors at a time. To nitrify and denitrify wastewater, a wastewater influent stream is alternatively directed to the anoxic reactors which are alternatively operated under aerobic and anoxic conditions so as to nitrify or denitrify the wastewater contained therein. To reduce or minimize the dissolved oxygen return from the membrane reactor to the first and second reactors, the flow of return activated sludge is controlled such that generally return activated sludge is returned to the reactor operating under aerobic conditions.
摘要翻译：提供了一种废水处理系统，其包括第一和第二反应器，每个反应器用于硝化或反硝化其中所含的废水。来自第一和第二反应器的下游是在需氧条件下运行并包括用于分离固体的一个或多个浸没膜的膜反应器。在膜反应器和第一和第二反应器中的每一个之间的延伸是具有适当控制的返回活性污泥管线，用于允许一次将返回的活性污泥导向反应器中的一个。对于硝化和反硝化废水，废水流入物流交替地被引导到缺氧反应器，其在有氧和缺氧条件下交替地运行，以便对其中所含的废水进行硝化或反硝化。为了减少或最小化从膜反应器到第一和第二反应器的溶解氧回流，控制回流活性污泥的流动，使得通常返回的活性污泥返回到在需氧条件下运行的反应器。

5. 发明授权

US06830689B2 Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment system 失效
标题翻译：使用三池污水处理系统从废水中除磷的方法
公开(公告)号：US06830689B2
公开(公告)日：2004-12-14
申请号：US10429556
申请日：2003-05-05
申请人： Sun-Nam Hong , Hong W. Zhao , Richard W. DiMassimo
发明人： Sun-Nam Hong , Hong W. Zhao , Richard W. DiMassimo
IPC分类号： C02F330
CPC分类号： C02F3/308 , C02F3/1263 , Y02W10/15 , Y10S210/906
摘要： A multi-phase process for removing phosphorus from wastewater in a triple ditch or triple basin system where wastewater influent is sequentially directed to each of the three basins or ditches, sometimes referred to as first and second outer basins and an intermediate basin. During each phase of the process, the mixed liquor in at least one of the basins is subject to settling. In one or more phases of the process, the mixed liquor, in certain basins, is subjected to anaerobic and aerobic treatment. Anaerobic treatment results in the growth or proliferation of phosphorus storing microorganisms. These phosphorus-storing microorganisms take up phosphorus when the mixed liquor is subjected to aerobic conditions. One of the basins, the intermediate basin, can be designed to have a volume greater than either of the first or second outer basins. Further, the triple basin or triple ditch system is designed to transfer mixed liquor suspended solids or biomass from one basin to another. Each outer basin is provided with a submersible pump that is operatively connected to a network of pipes such that mixed liquor suspended solids can be transferred from each of the first and second outer basins to the intermediate basin. Further, mixed liquor suspended solids can be transferred back and forth between the two outer basins.
摘要翻译：一种用于在三沟或三盆系统中从废水中除去磷的多相方法，其中废水流入物顺序地引导到三个盆地或沟渠中的每一个，有时称为第一和第二外盆和中间盆。在该过程的每个阶段期间，至少一个盆地中的混合液体可以沉降。在该方法的一个或多个阶段中，在某些盆地中的混合液体进行厌氧和需氧处理。厌氧处理导致储存微生物的生长或增殖。当混合液经受好氧条件时，这些储存磷的微生物会吸收磷。中间盆之一的盆地之一可以设计成具有比第一或第二外盆中的任一个大的体积。此外，三池或三沟渠系统设计成将混合液悬浮固体或生物质从一个盆地转移到另一个盆地。每个外盆设置有可操作地连接到管网的潜水泵，使得混合液悬浮固体可以从第一和第二外盆中的每一个转移到中间盆。此外，混合液悬浮固体可以在两个外盆之间来回转移。

6. 发明申请

US20110284461A1 Controlled Aeration of Integrated Fixed-Film Activated Sludge Bioreactor Systems for the Treatment of Wastewater 有权
标题翻译：综合固定膜活性污泥生物反应器系统处理废水的控制曝气
公开(公告)号：US20110284461A1
公开(公告)日：2011-11-24
申请号：US12783807
申请日：2010-05-20
申请人： Richard W. DiMassimo , Erik Bundgaard
发明人： Richard W. DiMassimo , Erik Bundgaard
IPC分类号： C02F3/12
CPC分类号： C02F3/006 , C02F3/085 , C02F3/308 , C02F2209/001 , C02F2209/003 , C02F2209/14 , C02F2209/22 , Y02W10/15
摘要： A method of biologically treating wastewater with an integrated fixed film activated sludge process. The integrated fixed film activated sludge process includes biomass suspended in mixed liquor and biomass disposed on carriers. Under certain conditions the dissolved oxygen concentration in a reactor that includes the mixed liquor, biomass suspended in the mixed liquor, and the biomass on the carriers, biological treatment is performed primarily by the biomass in the mixed liquor. This is achieved by controlling or maintaining the dissolved oxygen concentration in the reactor at a relatively low concentration. When the biomass suspended in the mixed liquor is unable to adequately biologically treat the mixed liquor, the dissolved oxygen concentration in the reactor is controlled or maintained at a relatively high concentration. This enables biomass on the carriers to contribute more to the biological treatment of the mixed liquor than when the dissolved oxygen concentration was maintained relatively low.
摘要翻译：用一体化固定膜活性污泥法生物处理废水的方法。综合固定膜活性污泥法包括悬浮在混合液中的生物质和载于载体上的生物质。在某些条件下，包括混合液体的反应器中的溶解氧浓度，悬浮在混合液中的生物质和载体上的生物质的生物处理主要由混合液体中的生物质进行。这通过以相对低的浓度控制或维持反应器中的溶解氧浓度来实现。当悬浮在混合液中的生物质不能充分地生物处理混合液时，反应器中的溶解氧浓度被控制或保持在较高的浓度。这使得载体上的生物质比溶解氧浓度保持较低时更有助于混合液的生物处理。

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