公开(公告)号：US4933087A

公开(公告)日：1990-06-12

申请号：US289053

申请日：1988-12-23

申请人： William M. Markham, Jr. ,  John H. Reid ,  George L. Coffman

发明人： William M. Markham, Jr. ,  John H. Reid ,  George L. Coffman

IPC分类号： A23K1/10 ,  C02F1/52 ,  C02F9/00 ,  C11B13/00

CPC分类号： C11B13/00 ,  A23K10/26 ,  C02F1/5263 ,  C02F9/00 ,  Y02W30/74 ,  Y10S210/905 ,  Y10S210/926

摘要： A process is disclosed for treating food wastewaters by acidifying to a low pH, adding an alginate, and, preferably, adding lime to a pH of at least 7.0, without adding iron or aluminum to assist in coagulation and flocculation of the wastewater. A floc is formed at acid pH in some wastewaters and at neutral to alkaline pH in other wastewaters treated with lime. After recovery of the floc as a sludge, the process provides at least about 70% removals of Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), and Chemical Oxygen Demand (COD) at reasonable costs and with negligible formation of free fatty acids in the resulting sludge.

摘要翻译： 公开了一种通过酸化至低pH，加入藻酸盐，并且优选将石灰添加至至少7.0的pH而不添加铁或铝以帮助废水凝结和絮凝来处理食品废水的方法。 在酸性pH下，在一些废水中形成絮凝物，在其他用石灰处理的废水中中性至碱性pH下形成絮凝物。 在回收絮体作为污泥后，该过程以合理的成本提供至少约70％的总悬浮固体（TSS），生物化学需氧量（BOD）和化学需氧量（COD）的清除，并且游离脂肪的形成可以忽略不计 所得污泥中的酸。

公开(公告)号：US4532038A

公开(公告)日：1985-07-30

申请号：US492156

申请日：1983-05-11

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/12 ,  C02F3/16 ,  C02F3/20 ,  C02F3/22

CPC分类号： C02F3/1294 ,  B01F3/04517 ,  B01F3/04524 ,  B01F3/04609 ,  B01F3/04758 ,  B01F3/04773 ,  C02F3/12 ,  C02F3/165 ,  C02F3/205 ,  C02F3/223 ,  B01F2003/0456 ,  B01F2003/04645 ,  B01F2003/04673 ,  Y02W10/15 ,  Y10S210/926

摘要： In aerobic wastewater treatment systems, such as sewage treatment, liquid in a channel spanned by a liquid-tight barrier is moved past the barrier by a liquid-gas contact pump, thus dissolving a gas in the liquid and creating a differential head that provides flow energy for moving the liquid in plug-type flow through the channel, which is preferably a continuous-flow pipeline or a circuit-flow oxidation ditch, without energy-wasteful vertical circulation. The barrier further provides a structure for mounting submerged static aerators or a draft tube, in combination with a surface aerator, such as a submerged turbine or surface-disposed impeller aerator, as the liquid-gas contact pump. The barrier is disposed at sufficient depth, when combined with static aerators or when telescopically attached to the draft tube of a floating surface aerator, to enable the liquid level to be selectively varied so that flow equalization to an oxidation ditch and wastewater storage therewithin are provided. Because of the plug-type flow and capability of maintaining it at 0.75-1.25 feet per second, a grit settling capability can be combined with aerobic digestive treatment within the oxidation ditch by placing a grit settling system slightly past the raw sewage inlet in a channel of the oxidation ditch. By employing a plurality of oxidation ditches, of which one is sequential used for clarification, and by incorporating a grit settling system within each of the oxidation ditches, the entire wastewater output from a large municipality, slaughterhouse, or poultry processing plant, for example, can be processed without preliminary or supplementary treatment in any other apparatus.

摘要翻译： 在需氧污水处理系统中，例如污水处理，通过液密屏障穿过的通道中的液体通过液 - 气接触泵移动通过阻挡层，从而将气体溶解在液体中并产生提供流动的差动头 用于使插塞型流中的液体移动通过通道的能量，该通道优选地是连续流动管道或电路流氧化沟道，而没有浪费能量的垂直循环。 隔板还提供了用于将浸没式静电曝气器或引流管与表面曝气器（例如浸没式涡轮或表面布置的叶轮曝气器）组合的结构，作为液 - 气接触泵。 当与静电曝气器组合时或者当将其可伸缩地附接到浮动表面曝气器的引流管时，屏障设置在足够的深度，以使液位能够选择性地变化，从而提供到氧化沟和废水存储的流量均衡 。 由于插塞式流量和维持在0.75-1.25英尺/秒的能力，通过将砂粒沉降系统略微超过通道中的原始污水入口，可将砂砾沉降能力与氧化沟内的有氧消化处理相结合 的氧化沟。 通过使用多个氧化沟，其中一个连续地用于澄清，并且通过在每个氧化沟内并入砂粒沉降系统，从大型自治市，屠宰场或家禽加工厂输出的整个废水， 可以在任何其他设备中进行预处理或辅助处理。

公开(公告)号：US4512895A

公开(公告)日：1985-04-23

申请号：US433639

申请日：1982-10-12

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/12 ,  C02F3/20 ,  C02F3/28 ,  C02F3/30 ,  C02F3/34

CPC分类号： C02F3/1257 ,  C02F3/207 ,  C02F3/30 ,  C02F3/301 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/926 ,  Y10S261/75

摘要： An integral clarifier is provided that operates without a pump by deriving the clarifier feed stream and its accompanying pump head from the flow being pumped through the draft tube of a draft tube circulator/aerator assembly in a complete mix system or in a basin oxidation ditch. The clarifier feed stream is delivered to the clarifier with this pump head substantially intact to create a differential hydraulic head between the surface of the clarified liquor within the clarifier and the surface of the mixed liquor within the complete mix tank or within the endless channel of the barrier oxidation ditch. The clarifier may be located in any suitable place but is preferably alongside the complete mix tank or alongside the discharge channel of the barrier oxidation ditch, within the discharge channel so that its upstream side forms the barrier, or surrounded by the endless channel, particularly if the clarifier and the ditch are circular in shape.

摘要翻译： 提供了一个完整的澄清器，其通过从完全混合系统或在盆式氧化沟中的通过引流管循环器/曝气器组件的引流管泵送的流动导出澄清剂进料流及其伴随的泵头而在没有泵的情况下运行。 净化器进料流被输送到澄清器，该泵头基本上完整无损，以在澄清池内的澄清液体的表面和完全混合罐内的混合液体的表面之间或在完全混合罐的环形通道内产生差动液压头 阻隔氧化沟。 净化器可以位于任何合适的位置，但优选在排放通道内的完整混合罐旁边或旁边的阻隔氧化沟的排放通道旁边，使得其上游侧形成屏障，或由环形通道围绕，特别是如果 澄清器和沟槽是圆形的。

公开(公告)号：US4455232A

公开(公告)日：1984-06-19

申请号：US361205

申请日：1982-03-24

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/12 ,  C02F3/16 ,  C02F3/20 ,  C02F3/30

CPC分类号： C02F3/1257 ,  C02F3/16 ,  C02F3/165 ,  C02F3/207 ,  C02F3/301 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/926 ,  Y10S261/75

摘要： A barriered circulator/aerator in the endless channel of a barrier oxidation ditch provides a directly pumped flow of mixed liquor into a central liquor inlet zone and an energy-release induced flow of mixed liquor into a surrounding liquor inlet zone at the inlet of a deep oxygen contact duct which passes beneath the barrier to the discharge channel on the downstream side thereof. It further provides mixing of diffused air with the directly pumped flow and/or the induced flow and then moving the combined air-liquor flows into the deepest portion of the contact duct where point-source pressurized aeration of both flows occurs. Eddy jet diffusers are preferably used for aerating the induced flow. Oxygen transfer efficiencies are obtained that are 1.6-2.2 times as great per brake horsepower per hour as that attainable by 100% pumping of the mixed liquor in a total barrier oxidation ditch, as disclosed in U.S. Pat. No. 4,260,278.

摘要翻译： 阻挡氧化沟的无端通道中的阻挡循环器/曝气器将混合液体的直接泵送流入中央液体入口区域，并将能量释放诱导的混合液流引入深入口处的周围液体入口区域 氧气接触管道，其在障碍物下方通向其下游侧的排放通道。 它进一步提供扩散空气与直接泵送流和/或诱导流的混合，然后将组合的空气液流移动到接触管道的最深部分，其中发生两个流的点源加压曝气。 涡流扩散器优选用于对诱导流充气。 获得的氧气转移效率是每小时制动马力的1.6-2.2倍，如通过100％泵送整个阻挡氧化沟道中的混合液所获得的，如美国专利No. 第4,260,278号。

公开(公告)号：US4917805A

公开(公告)日：1990-04-17

申请号：US286805

申请日：1988-12-20

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/30

CPC分类号： C02F3/301 ,  C02F3/302 ,  Y10S210/903

摘要： A nitrification-denitrification process is disclosed wherein a single flow-through and cyclically operated complete mix activated sludge basin, containing mixed liquor having a mean cell residence time of at least 15 days, is fed with wastewater and discharges treated wastewater to a clarifier while its contents are continuously agitated and cyclically aerated for approximately 3-9 minutes to form an oxic stage and then not aerated for approximately 3-9 minutes to form an anoxic stage. The treated and clarified liquor has ammonia contents no higher than 2.0 mg/l, nitrite contents no higher than 1.0 mg/l, and nitrate contents no higher than 2.0 mg/l. Approximately 99.9% by weight of the discharged sludge from the clarifier is returned to the complete mix basin, the remainder being waste activated sludge.

摘要翻译： 公开了硝化 - 脱氮方法，其中将含有平均细胞停留时间至少为15天的含有混合液的单一流通和循环操作的完全混合活性污泥池送入废水中，并将经处理的废水排放至澄清器，同时 将内容物连续搅拌并循环充气约3-9分钟以形成氧化阶段，然后不通气约3-9分钟以形成缺氧阶段。 处理澄清液的氨含量不高于2.0mg / l，亚硝酸盐含量不高于1.0mg / l，硝酸盐含量不高于2.0mg / l。 来自澄清池的排放污泥的重量约99.9％返回到完整的混合盆中，其余为废活性污泥。

公开(公告)号：US4902302A

公开(公告)日：1990-02-20

申请号：US63257

申请日：1987-06-17

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/12 ,  C02F3/16 ,  C02F3/20 ,  C02F3/30

CPC分类号： C02F3/1257 ,  C02F3/16 ,  C02F3/165 ,  C02F3/207 ,  C02F3/301 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/926

摘要： For use in an activated sludge process, dual-baffle aerators for both vertically mounted surface aerators and static mixer-aerators are disclosed. These devices substantially prevent back-mixing of freshly aerated liquor into aerator intakes and provide directional propulsion. By connecting two or more such devices to form a barrier across the channel of an oxidation ditch, homogeneous aeration is provided to the mixed liquor. Barriered pump/aerator assemblies utilizing directional mix jet aerators (eddy jet) are also described. These devices can also be combined with dual-baffle aerators to furnish both propulsion and a selected degree of homogeneous aeration in a barrier oxidation ditch. An adjustably apertured barriered pump assembly is additionally disclosed for providing a selected balance between homogeneous aeration and/or mixing and heterogeneous aeration and/or mixing. Gateways therein are opened sufficiently to conserve momentum in the translationally flowing liquor while preventing back-mixing of aerated liquor. Use of a draft-tube pump assembly in combination with a barrier is described for providing homogeneous aeration and/or mixing and without a barrier to provide heterogeneous aeration and/or mixing. In combination with a sufficiently extended draft tube, a water barrier is created that substantially prevents back-mixing.

摘要翻译： 为了用于活性污泥法，公开了用于垂直安装的表面曝气器和静态混合器 - 曝气器的双挡板曝气器。 这些装置基本上防止新鲜充气的液体回流到曝气器入口中并提供定向推进。 通过连接两个或更多个这样的装置以在氧化沟的通道上形成屏障，向混合液体提供均匀的曝气。 还描述了使用定向混合喷射曝气器（涡流喷射）的排水泵/曝气器组件。 这些装置还可以与双挡板曝气器相结合，以在障碍氧化沟中提供推进和选定程度的均匀曝气。 另外公开了一种可调节的有孔栅栏泵组件，用于在均匀曝气和/或混合和异质曝气和/或混合之间提供选定的平衡。 其中的网关被充分打开以节省平移流体中的动量，同时防止充气液的回混。 描述了与屏障结合使用引流管泵组件，用于提供均匀的通气和/或混合，并且没有屏障以提供异质通气和/或混合。 与充分延长的导流管结合，产生基本上防止反向混合的防水屏障。

公开(公告)号：US4548712A

公开(公告)日：1985-10-22

申请号：US429166

申请日：1982-09-30

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/12 ,  C02F3/20 ,  C02F3/30

CPC分类号： C02F3/1257 ,  C02F3/207 ,  C02F3/301 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/926

摘要： A process is described for pumping and aerating the mixed liquor within the endless channel of an oxidation ditch by using a pump/aerator to form an aerobic zone which has a selectively located planar end, where an anoxic zone begins, and within which biological nitrification of NH.sub.3 -N occurs. A pump/circulator, to which inflowing raw wastewater and return sludge are fed, is located approximately at this planar end to provide point-source mixing of the wastewater and return sludge, whereby the five-day biological oxygen demand of the wastewater is oxidized within both the aerobic and the anoxic zones and the nitrate ions formed within the aerobic zone are denitrified within the anoxic zone. Finally, an oxygen-deficient zone, wherein the mixed liquor is deficient in both dissolved oxygen and NO.sub.3.sup.- and NO.sub.2.sup.- anions and is ready for luxury uptake of oxygen within the pump/aerator, is dependably provided at the end of the anoxic zone.

摘要翻译： 描述了一种用于通过使用泵/曝气器在氧化沟的环形通道内泵送和充气混合液的方法，以形成具有选择性定位的平面端的需氧区，其中缺氧区开始，并且其中生物硝化 发生NH3-N。 进口流入的原废水和返回污泥的泵/循环器大致位于该平面端，以提供废水和返回污泥的点源混合，由此废水的五天生物需氧量被氧化 好氧区内形成的有氧和缺氧区以及硝酸根离子都在缺氧区内脱氮。 最后，氧缺乏区域，其中混合液体在溶解氧和NO 3 - 和NO 2 - 阴离子中都不足，并且准备好在泵/曝气器内高效吸收氧气，可靠地提供在缺氧区的末端。

公开(公告)号：US4543185A

公开(公告)日：1985-09-24

申请号：US431303

申请日：1982-09-30

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/12 ,  C02F3/20 ,  C02F3/30 ,  F23D11/04

CPC分类号： C02F3/1257 ,  C02F3/207 ,  C02F3/301 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/926

摘要： A dual baffle pump/aerator assembly comprising a concave intake baffle which is disposed upon the floor of an endless channel of an oxidation ditch to intercept the flow of mixed liquor within the channel. A horizontal barrier having aeration means associated therewith is disposed above and attached to the intake baffle. A concave discharge baffle is disposed above and attached to the horizontal barrier.

摘要翻译： 双挡板泵/曝气器组件，包括凹入的进气挡板，其设置在氧化沟的环形通道的底板上，以拦截通道内的混合液体的流动。 具有与其相关联的曝气装置的水平屏障设置在进气挡板的上方并附接到进气挡板。 凹形放电挡板设置在水平屏障的上方并附着于其上。

公开(公告)号：US5266200A

公开(公告)日：1993-11-30

申请号：US686401

申请日：1991-04-17

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/00 ,  C02F3/12 ,  C02F3/20 ,  C02F3/30

CPC分类号： C02F3/1215 ,  C02F3/006 ,  C02F3/1263 ,  C02F3/205 ,  C02F3/301 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/903 ,  Y10S210/906 ,  Y10S210/926

摘要： A complete mix activated sludge basin is operated as a Sequence Continuous Reactor by cyclically aerating the mixed liquor to form an aerobic cycle at selected high dissolved oxygen levels, during which nitrification takes place, and cyclically mixing the liquor without aerating to form anoxic cycles at selected low dissolved oxygen levels, during which denitrification takes place. Field adjustments can be made by the operator in the dissolved oxygen levels and in the duration of the aerobic and anoxic cycles, whereby ammonia removal, nitrification, and denitrification can continue to be done efficiently during both summer and winter temperature conditions, during conditions varying from warm to cold inlet wastewater temperatures, during extreme variations in food supply, and during pronounced variations in biomass concentration and activity.

摘要翻译： 完整的混合活性污泥池作为序列连续反应器，通过循环曝气混合液体形成选择的高溶解氧水平的氧循环，在此期间发生硝化，并循环混合液体而不进行充气，以在选定的条件下形成缺氧循环 低溶解氧水平，在此期间发生反硝化。 现场调整可以由操作人员在溶解氧水平和好氧和缺氧循环的持续时间内进行，从而在夏季和冬季温度条件下，氨的去除，硝化和反硝化可以继续有效地进行， 在食物供应的极端变化期间以及在生物量浓度和活动的明显变化期间，进入冷却水温度温和。

公开(公告)号：US5041217A

公开(公告)日：1991-08-20

申请号：US576153

申请日：1990-08-29

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F3/12 ,  C02F3/16 ,  C02F3/20 ,  C02F3/30

CPC分类号： C02F3/1257 ,  C02F3/16 ,  C02F3/165 ,  C02F3/207 ,  C02F3/301 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/926 ,  Y10S261/75

摘要： A process and any of several pump/circulators provide selective rapid mixing of influent wastewater with the mixed liquor in the channel of an oxidation ditch and thereby provide maximized use of the entire volume of the channel. The pump/circulator is disposed at the beginning of the anoxic zone and preferably receives the influent wastewater. The oxidation ditch is preferably a barrier oxidation ditch or at least a baffle oxidation ditch in order to prevent backmixing.

摘要翻译： 一个方法和几个泵/循环器中的任何一个提供了流入废水与氧化沟通道中的混合液的选择性快速混合，从而提供了通道的整个体积的最大化使用。 泵/循环器设置在缺氧区的开始处，优选地接收进水废水。 氧化沟优选是阻挡氧化沟或至少挡板氧化沟，以防止回混。