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    Apparatus for contacting a gas with a liquid, in particular for aerating waste water
    1.
    发明公开
    Apparatus for contacting a gas with a liquid, in particular for aerating waste water 失效
    用于与气体接触的装置，特别是用于燃烧废水的装置

    公开(公告)号：EP0262717A3

    公开(公告)日：1988-09-28

    申请号：EP87201744

    申请日：1987-09-11

    申请人： DHV Raadgevend Ingenieursbureau BV

    发明人： ten Hove, Dirk

    IPC分类号： C02F03/16 ,  C02F03/12

    CPC分类号： C02F3/1257 ,  B01F3/04773 ,  C02F3/145 ,  C02F3/16 ,  Y02W10/15

    摘要： An apparatus for aerating waste water comprising a surface aerator (2) adapted to rotate about a vertical axis (3). A number of circumferentially spaced baffles (13) are provided at the inner side of the cap (5). These baffles (13) extend upwardly from the lower side of the cap (5) to the top wall 6 and extend over a distance radially. The cap (5) may have a side wall (7) with a lower edge extending vertically downwards or inwards. Other embodiments of the cap (5) are specifically adapted for use in an installation for treating waste water, in which the apparatus serves also for bringing the liquid into circulation.

    Hydraulic horizontal mixer
    3.
    发明公开
    Hydraulic horizontal mixer 失效
    液压水平混合机

    公开(公告)号：EP0107406A3

    公开(公告)日：1986-11-26

    申请号：EP83305943

    申请日：1983-09-30

    申请人： AIR-O-LATOR CORPORATION

    发明人： Cramer, Roy A. ,  Cramer, Barry G.

    IPC分类号： B01F07/06 ,  C02F03/12

    CPC分类号： C02F3/1284 ,  B01F7/00741 ,  Y02W10/15

    摘要： A hydraulically powered mixing aerator rides on an upright beam member for submersion in a body of water such as an equalization basin, oxidation ditch or sludge holding tank used in sewage treatment plants. The aerator employs a submersible, hydraulically powered mixing motor driving a propeller which is mounted on the beam member by a slidable bracket for height ajdustment. The beam member is swingably supported to allow adjustment of the vertical plane angle. Because the beam member is also mounted for rotation, substantially any attitude or position of the mixer can be selected for creating an efficient flow pattern within the body of water. The speed at which the propeller is rotated, and therefore, the rate at which the water is circulated and aerated, is selectively adjustable. The hydraulically driven motor provides for a low speed and high torque rotation of the propeller without the use of a reduction gear.

    摘要翻译： 液压动力混合式充气机骑在垂直梁构件上，浸入水体中，例如用于污水处理厂的均流池，氧化沟或污泥容器。 曝气器采用潜水式液压动力搅拌马达驱动螺旋桨，该螺旋桨通过滑动支架安装在梁构件上，用于高度调节。 梁构件可摆动地支撑以允许调节垂直平面角度。 由于梁构件也安装成旋转，所以可以选择混合器的基本上任何姿态或位置，以在水体内产生有效的流动模式。 螺旋桨旋转的速度，因此水循环和充气的速度是可选择的。 液压驱动马达不需要使用减速齿轮来提供螺旋桨的低速和高扭矩旋转。

    Biological wastewater treating system
    4.
    发明公开
    Biological wastewater treating system 失效
    生物废水处理系统

    公开(公告)号：EP0132609A3

    公开(公告)日：1985-12-27

    申请号：EP84107352

    申请日：1984-06-26

    申请人： AIR PRODUCTS AND CHEMICALS, INC.

    发明人： Chen, Michael Shi-kuan ,  Spector, Marshall Louis

    IPC分类号： C02F03/12

    CPC分类号： C02F3/1215 ,  C02F3/308 ,  Y02W10/15 ,  Y10S210/903 ,  Y10S210/906

    摘要： A modified activated sludge system is provided wherein wastewater containing BOD 5 and phosphate values is admixed in an initial zone with biomass-containing recycled sludge to form a mixed liquor under conditions effecting sorption of BOD. in the biomass. Subsequently, said mixed liquor is subjected to aeration in an oxidation zone under conditions for effecting oxidation of BOD., such that oxidizing agent is incorporated into the oxidation zone at a rate not substantially exceeding the rate of oxidation. By such operation, considerable savings in power requirements for oxygen transferto the mixed liquid are had, while developing and maintaining a dense non-bulking biomass having the properties of good removal of phosphate from the wastewater influent.

    摘要翻译： 提供了改进的活性污泥系统，其中含有BOD5和磷酸值的废水在初始区域与含生物质的循环污泥混合，以在生物质中吸附BOD5的条件下形成混合液体。 随后，将所述混合液在氧化区中进行曝气，使其氧化BOD5，使氧化剂以基本上不超过氧化速率的速率掺入氧化区。 通过这种操作，在显影和保持具有从废水流入物中去除磷酸盐的性能的致密非膨胀生物质的同时，可以大量节省氧气输送到混合液体中的功率需求。

    Side skimmer
    6.
    发明公开
    Side skimmer 失效
    侧面SKIMMER

    公开(公告)号：EP0218316A3

    公开(公告)日：1988-09-07

    申请号：EP86304557

    申请日：1986-06-13

    申请人： Beard, Harold James ,  Cox, Raleigh L.

    发明人： Beard, Harold James

    IPC分类号： B01D21/24 ,  C02F03/12

    CPC分类号： C02F3/1257 ,  B01D21/2433 ,  B01D21/2488 ,  E02B15/106 ,  Y02W10/15 ,  Y10S210/926

    摘要： The device is intended particularly for mounting in an oxidation channel (2) containing an intra-channel clarifier (8). The device includes skimming means (10) secured to a wall of the channel by a fixed portion (11) and having a pivotally movable deflector (12) movable between open and closed positions. A drain (18) in a wall of the channel can also be opened and closed so that floating matter can be directed into the drain.

    Process and apparatus for the biological purification of waste water
    7.
    发明公开
    Process and apparatus for the biological purification of waste water 失效
    废水生物净化的工艺和装置

    公开(公告)号：EP0209877A3

    公开(公告)日：1988-05-04

    申请号：EP86109983

    申请日：1986-07-21

    申请人： Linde Aktiengesellschaft

    发明人： Wildmoser, Alfred, Dipl-Ing. ,  Reimann, Hans, Dr.

    IPC分类号： C02F03/12 ,  C02F03/10

    CPC分类号： C02F3/087 ,  C02F3/10 ,  Y02W10/15

    摘要： Bei einem Verfahren zur biologischen Reinigung von or ganische Verunreinigungen enthaltendem Abwasser wird das Abwasser in einem im wesentlichen längsdurchströmten Becken 1 in Gegenwart von Trägerteilchen 10 für Mikroorga nismen mit Schlamm vermischt und über Gaseintragseinrich tungen 11 mit einem sauerstoffhaltigen Gas begast. Behan deltes Abwasser und gegebenenfalls freier Schlamm werden über eine Ableitung (4, 14) unter Zurückhaltung der Trägerteil chen mit Hilfe von Rückhalteeinrichtungen (5, 15) aus dem Becken 1 abgezogen. Über den Strömungsweg des Abwas ser-Schlamm-Gemisches wird eine weitgehende Trägerteil chenverteilung aufrechterhalten. Zur Verbesserung der Gleichverteilung der Trägerteilchen über die Beckenlänge ist vorgesehen, das Abwasser und den Schlamm an beiden End bereichen und/oder im mittleren Bereich des Beckens 1 über entsprechende Anschlüsse (2a, 12a, 2b); (3a, 13a, 3b) zuzulei ten und behandeltes Abwasser sowie gegebenenfalls freien Schlamm zumindest teilweise im mittleren Bereich und/oder an beiden Endbereichen des Beckens 1 abzuleiten.