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1. 发明申请

WO2006039508A2 CONTINUOUS MULTISTAGE THERMOPHILIC AEROBIC AND AEROBIC-ANAEROBIC SLUDGE DIGESTION SYSTEMS 审中-公开
标题翻译：连续多级热液空气和厌氧消化污泥系统
公开(公告)号：WO2006039508A2
公开(公告)日：2006-04-13
申请号：PCT/US2005/035221
申请日：2005-09-30
申请人： MIXING AND MASS TRANSFER TECHNOLOGIES, LLC , MCWHIRTER, John, R. , BALAN, Prakash, G. , SWOPE, Bradley, A.
发明人： MCWHIRTER, John, R. , BALAN, Prakash, G. , SWOPE, Bradley, A.
IPC分类号： C02F11/02
CPC分类号： C02F11/02 , C02F3/121 , C02F3/30 , C02F11/04 , C02F2301/106 , Y02W10/15 , Y02W10/27
摘要： A continuous flow multistage aerobic wastewater sludge digestion system comprising at least two stages connected in series, each stage comprising one or more covered tanks, tank segments or compartments, each having an enclosed separate gas headspace, wherein the gas headspaces of each stage are connected in a specified sequence that may be identical to or different from the staging sequence followed by the sludge liquid. An oxygen containing gas stream, such as air or an oxygen enriched gas stream, is supplied to the headspace of each stage, and a means for aerating the sludge in one or more of the tanks, tank segments or compartments is provided to enhance the transfer of oxygen from the gas headspace into the sludge liquid for use by bacteria in digestion of the sludge. At least one stage of the sludge digestion system is operated at a thermophilic temperature above 50 °C and the flow of oxygen containing gas through the system can be cocurrent, countercurrent, or a mixture of both with respect to the flow of the liquid. Preferred embodiments of the invention include the use of this aerobic digestion system prior to anaerobic digestion.
摘要翻译：一种连续流动多级有氧废水污泥消解系统，包括至少两个串联连接的阶段，每个阶段包括一个或多个被覆盖的罐，罐段或隔室，每个具有封闭的分开的气体顶部空间，其中每个级的气体顶空连接可以与分级序列相同或不同的指定序列，随后是污泥液体。将含氧气流（例如空气或富氧气流）供应到每个级的顶部空间，并且提供用于使一个或多个罐，罐段或隔室中的污泥充气的装置，以增强转移的氧气从气体顶部进入污泥液体，供细菌消化污泥使用。污泥消化系统的至少一个阶段在高于50℃的高温温度下操作，并且通过该系统的含氧气体的流动可以是并流的，逆流的或两者相对于液体流的混合物。本发明的优选实施方案包括在厌氧消化之前使用该需氧消化系统。

2. 发明申请

WO2005099881A1 IMPROVED SURFACE AERATION IMPELLER DESIGNS 审中-公开
标题翻译：改进的表面动力叶轮设计
公开(公告)号：WO2005099881A1
公开(公告)日：2005-10-27
申请号：PCT/US2005/009141
申请日：2005-03-18
申请人： THE PENN STATE RESEARCH FOUNDATION , MCWHIRTER, John, R. , BALAN, Prakash, G.
发明人： MCWHIRTER, John, R. , BALAN, Prakash, G.
IPC分类号： B01F3/04
CPC分类号： B01F7/00466 , B01F3/04609 , B01F3/04773 , B01F3/0478 , B01F7/00116 , B01F7/00133 , B01F7/00141 , B01F7/00291 , B01F7/00633 , B01F7/00641 , B01F2215/0422 , B01F2215/0431 , B01F2215/045 , B01F2215/0463 , B01J19/1875 , B01J2219/00768 , C12M27/02
摘要： A surface aeration impeller for use in a liquid filled tank. The impeller is rotatable about an axis (3) perpendicular to the static liquid surface (13). The impeller has a plurality of blades (2) mounted on the underside of a disc or disc-like surface (1). Each blade has a multi-faceted or curved geometry ranging from vertical at the point of attachment to the disc to partially inclined at the bottom. The bl0d5s are spaced circumferentially about the axis and are disposed at acute angles to radial lines from the axis of rotation (3) of the impeller. The lower portions (7) of the blades, which are inclined but non-vertical, are positioned at or below the static liquid surface. When the impeller is rotated, the lower portion pumps the liquid up onto the vertical portion of the blades where the liquid is discharged into a spray umbrella (11) in a direction upwardly and outwardly away from the impeller. The design of the invention produces substantially higher oxygen transfer efficiency and overall liquid pumping rates than prior art designs and is particularly useful the aeration of sewage and other wastewater.
摘要翻译：用于液体填充罐的表面曝气叶轮。叶轮可绕垂直于静态液体表面（13）的轴线（3）旋转。叶轮具有安装在盘或盘状表面（1）的下侧上的多个叶片（2）。每个刀片具有多面或弯曲的几何形状，从连接点处的垂直点到盘的部分倾斜。 bl0d5s围绕轴线周向间隔开并且与从叶轮的旋转轴线（3）的径向线成锐角地设置。倾斜但不垂直的叶片的下部（7）位于静态液体表面上或下方。当叶轮旋转时，下部将液体泵送到叶片的垂直部分上，其中液体沿着向上和向外远离叶轮的方向被排放到喷雾伞（11）中。本发明的设计产生比现有技术设计显着更高的氧气转移效率和总的液体泵送速率，并且特别适用于污水和其它废水的通气。

3. 发明申请

WO2005107930A1 NOVEL BIOCHEMICAL OXIDATION SYSTEM 审中-公开
标题翻译：新型生物化学氧化系统
公开(公告)号：WO2005107930A1
公开(公告)日：2005-11-17
申请号：PCT/US2004/010433
申请日：2004-04-05
申请人： THE PENN STATE RESEARCH FOUNDATION , MCWHIRTER, John, R. , BALAN, Prakash, G.
发明人： MCWHIRTER, John, R. , BALAN, Prakash, G.
IPC分类号： B01F3/04
CPC分类号： B01F7/00466 , B01F3/04773 , B01F3/0478
摘要： A surface aeration impeller (54) for use in a biochemical oxidation tank (22) . The impeller is rotatable about an axis perpendicular to the static liquid surface (37). The impeller has a plurality of blades (2) mounted on the underside of a disc or disclike surface (1). Each blade (2) has a multi-faceted or curved geometry ranging from vertical at the point of attachment to the disc to partially inclined at the bottom. The blades are spaced circumferentially about the axis (3) and are disposed at acute angles to radial lines from the axis of rotation of the impeller. The lower portions (7) of the blades, which are inclined but non-vertical, are positioned at or below the static liquid surface. When the impeller is rotated, the lower portion (7) pumps the liquid up onto the vertical portion (6) of the blades where the liquid is discharged into a spray umbrella (53, 55, 57) in a direction upwardly and outwardly away from the impeller. The design of the reinvention produces substantially higher oxygen transfer efficiency and overall liquid pumping rate than prior art designs and is particularly useful in the aeration of sewage an other wastewater.
摘要翻译：一种用于生物化学氧化罐（22）的表面曝气叶轮（54）。叶轮可绕垂直于静态液体表面（37）的轴线旋转。叶轮具有安装在盘或盘状表面（1）的下侧上的多个叶片（2）。每个叶片（2）具有多面或弯曲的几何形状，从连接点处的垂直点到盘部分地倾斜在底部。叶片围绕轴线（3）周向间隔开并且与从叶轮的旋转轴线的径向线成锐角地设置。倾斜但不垂直的叶片的下部（7）位于静态液体表面上或下方。当叶轮旋转时，下部（7）将液体泵送到叶片的垂直部分（6）上，其中液体沿向上和向外远离的方向排放到喷雾伞（53,55,57）中叶轮。重新设计的设计与现有技术的设计相比产生显着更高的氧气转移效率和总体液体泵送速率，并且在污水和其它废水的通气中特别有用。

4. 发明申请

WO2004108259A3 SLOTTED DRAFT TUBE MIXING SYSTEMS 审中-公开
公开(公告)号：WO2004108259A3
公开(公告)日：2004-12-16
申请号：PCT/US2004/015301
申请日：2004-05-14
申请人： MCWHIRTER, John, R. , BALAN, Prakash, G.
发明人： MCWHIRTER, John, R. , BALAN, Prakash, G.
IPC分类号： G01C17/38
摘要： A draft tube mixing system or reactor wherein the draft tube contains slots, perforations, or cut-out sections that allow cross flow of fluid through the draft tube wall. The perforations or slots can be practically any shape, however, simple geometric shapes such as rectangles and circles are preferred for ease of manufacture. The perforations or slots are typically arrayed in columns along a substantial section of the draft tube. In a preferred embodiment, the quantity and position of the perforations are such that a fluid filling the draft tube is capable of cross flow through the draft tube wall along substantially its entire length.

5. 发明申请

WO2004025125A2 SURFACE AERATION IMPELLERS 审中-公开
标题翻译：表面打印机
公开(公告)号：WO2004025125A2
公开(公告)日：2004-03-25
申请号：PCT/US2002/029280
申请日：2002-09-16
申请人： THE PENN STATE RESEARCH FOUNDATION , MCWHIRTER, John, R. , BALAN, Prakash, G.
发明人： MCWHIRTER, John, R. , BALAN, Prakash, G.
IPC分类号： F04D
CPC分类号： C12M27/02 , B01F3/04609 , B01F3/04773 , B01F7/00116 , B01F7/00133 , B01F7/00141 , B01F7/00291 , B01F7/00633 , B01F7/00641 , B01F2003/04645 , B01F2003/04673 , B01F2215/0422 , B01F2215/0431 , B01F2215/045 , B01F2215/0463 , B01J19/0066 , B01J19/18 , B01J19/1875 , C12M27/08 , F04D29/30
摘要： A surface aeration impeller for use in a liquid filled tank. The impeller is rotatable about an axis perpendicular to the static liquid surface. The impeller has a plurality of blades mounted on the underside of a disc or disc-like surface. Each blade has a multi-faceted or curved geometry ranging from vertical at the point of attachment to the disc to partially inclined at the bottom. The blades are spaced circumferentially about the axis and are disposed at acute angles to radial lines from the axis of rotation of the impeller. The lower portions of the blades, which are inclined but non-vertical, are positioned at or below the static liquid surface. When the impeller is rotated, the lower portion pumps the liquid up onto the vertical portion of the blades where the liquid is discharged into a spray umbrella in a direction upwardly and outwardly away from the impeller. The design of the invention produces substantially higher oxygen transfer efficiency and overall liquid pumping rates than prior art designs and is particularly useful in the aeration of sewage and other wastewater.
摘要翻译：用于液体填充罐的表面曝气叶轮。叶轮可绕垂直于静态液体表面的轴线旋转。叶轮具有安装在盘或盘状表面的下侧上的多个叶片。每个叶片具有多面或弯曲的几何形状，从连接点处的垂直点到盘部分地倾斜到底部。叶片围绕轴线周向间隔开并且与从叶轮旋转轴线的径向线成锐角地设置。倾斜但不垂直的叶片的下部位于静态液体表面处或下方。当叶轮旋转时，下部将液体泵送到叶片的垂直部分上，其中液体沿着向上和向外远离叶轮的方向被排放到喷雾伞中。本发明的设计产生比现有技术设计显着更高的氧气转移效率和总的液体泵送速率，并且在污水和其它废水的通气中特别有用。

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