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    WASSERHEBEVORRICHTUNG MIT EINER ABSCHEIDEVORRICHTUNG
    52.
    发明公开
    WASSERHEBEVORRICHTUNG MIT EINER ABSCHEIDEVORRICHTUNG 审中-公开

    公开(公告)号：EP3392206A1

    公开(公告)日：2018-10-24

    申请号：EP18000173.7

    申请日：2018-02-20

    申请人： KLARO GmbH

    发明人： GRAF, Otto P.

    IPC分类号： C02F3/12 ,  C02F3/22 ,  B01D21/24 ,  F04F1/20

    CPC分类号： C02F3/223 ,  B01D17/00 ,  B01D17/0214 ,  B01D21/2444 ,  C02F3/1242 ,  C02F3/1263 ,  F04F1/20 ,  Y02W10/15

    摘要： Die Erfindung betrifft eine Wasserhebevorrichtung aus einem Reinigungsbecken (37) mit einer Abscheidevorrichtung, mit einem U-förmiges Rohr (3), das mit seiner Basis (4) in eine zu reinigende Flüssigkeit (5) eines Reinigungsbeckens (37) eintaucht und einen ersten Schenkel (6) als Heberohr (7) und einen zweiten Schenkel (8) als Belüftungsrohr (9) aufweist, wobei die Basis (4) als verbindender Krümmer (10) zwischen dem Heberohr (7) und dem Belüftungsrohr (9) ausgebildet ist, und wobei obere Enden (11, 12) der Schenkel (6,8) aus der zu reinigenden Flüssigkeit (5) herausragen, einen Ansaugstutzen, der an dem Belüftungsrohr (9) in einem unteren Wasserstandniveau (14) in Bezug auf das zu hebenden gereinigte Klarwasser (15) angeordnet ist, und mindestens ein Druckluftanschluss (16), der an dem Heberohr (7) und unterhalb des Wasserstandniveaus (14) des Ansaugstutzens angeordnet ist, der in einen ersten Tauchrohrstutzen (20) übergeht, wobei der erste Tauchrohrstutzen (20) in eine Abscheidevorrichtung (50) übergeht, wobei ein Umlenkrohr (51) der Abscheidevorrichtung (50) an ein Ende (52) des erste Tauchrohrstutzens (20) angeschlossen ist und entgegen der Ausrichtung des ersten Tauchrohrstutzens (20) bis zu einem Niveau (53) unterhalb des Wasserstandniveaus (14) umgelenkt ist und ein zweiter Krümmer (54) auf das Umlenkrohr (51) aufgesetzt ist, an den sich ein schräg nach unten ausgerichteter zweiter Tauchrohrstutzen (55) anschließt, der in eine vertikal ausgerichtete Ansaugöffnung (56) übergeht. Die Erfindung betrifft auch die entsprechende Abscheidevorrichtung.

    PROCESS FOR PRODUCING POLYHYDROXYALKANOATE
    53.
    发明公开
    PROCESS FOR PRODUCING POLYHYDROXYALKANOATE 审中-公开

    公开(公告)号：EP3383806A1

    公开(公告)日：2018-10-10

    申请号：EP16805812.1

    申请日：2016-12-02

    申请人： Paques I.P. B.V.

    发明人： DIJKMAN, Hendrik

    IPC分类号： C02F3/12 ,  C02F3/34 ,  C12P7/62

    CPC分类号： C12P7/625 ,  C02F3/006 ,  C02F3/1263 ,  C02F3/30 ,  C02F3/34 ,  C02F3/348 ,  C02F2203/004 ,  C02F2209/16 ,  C02F2209/18 ,  C02F2209/22 ,  C02F2305/06 ,  Y02W10/15

    摘要： High levels of microbial storage compound (MSC) such as polyhydroxyalkanotaes (PHA) can be produced from wastewater comprising Readily Biodegradable COD (RBCOD) using activated sludge comprising microorganisms capable of accumulating MSC by contacting the wastewater with the activated sludge in the presence of dissolved oxygen during a first period of time, to obtain MSC-loaded activated sludge comprising MSC at a level of at least 60 wt.% based on dry weight of the organic part of the sludge, and then supplying elements essential for growth such as nitrogen and phosphorus and allowing up-take of these elements and limited growth during a second period of time, the supplied amount of at least of one of said essential elements compared to the amount of RBCOD supplied in step a) limiting the growth to an extent that not all MSC is used for growth, to obtain grown activated sludge comprising residual MSC at a level of at least 20 wt.% based on dry weight of the organic part of the sludge; and removing or harvesting part of the MSC-loaded activated sludge and/or part of the grown activated sludge, so that the total average retention time of the sludge is less than 72 h.

    VERFAHREN ZUR BIOLOGISCHEN REINIGUNG VON ABWASSER
    55.
    发明公开
    VERFAHREN ZUR BIOLOGISCHEN REINIGUNG VON ABWASSER 审中-公开
    生物清洁废水的过程

    公开(公告)号：EP3307682A1

    公开(公告)日：2018-04-18

    申请号：EP16723769.2

    申请日：2016-05-20

    申请人： Essde GmbH

    发明人： NYHUIS, Geert

    IPC分类号： C02F3/08 ,  C02F1/38 ,  C02F3/12 ,  C12N11/08

    CPC分类号： C02F3/085 ,  C02F1/38 ,  C02F3/105 ,  C02F3/1205 ,  C02F3/1263 ,  C02F2003/001 ,  C02F2303/24 ,  Y02W10/15

    摘要： The invention relates to a method for biological cleaning of wastewater (2) in an activation system (1) having at least one activation tank (3), in which the wastewater (2) is contacted and cleaned with activated sludge in the activation tank (3), and in which the suspended activated sludge, after the cleaning of the wastewater (2), is separated from the cleaned wastewater (2) by sedimentation in a post-clarification tank (17) connected downstream of the activation tank (3) or in the activation tank (3). According to the invention, the the activated sludge suspended in the wastewater (2) is admixed with growth bodies in the activation tank (3), in order to bring the growth bodies into contact with the microorganisms present in the activated sludge and bring about the formation of a biofilm of microorganisms on the growth bodies. These growth bodies consisting of plastic or rubber have a greater density than the wastewater (2) and the suspended activated sludge, in order to bring about an increase in the settling rate of the activated sludge during the sedimentation in the post-clarification tank (17) or the activation tank (3). An excess fraction of the activated sludge that has sedimented and is present in the biofilm-covered growth bodies is removed as excess sludge from the post-clarification tank (17) or the activation tank (3) and supplied to a hydrocyclone (11), while the other fraction of the activated sludge that has sedimented and is present in the biofilm-covered growth bodies is either recycled as recycling sludge from the post-clarification tank (17) into the activation tank (3) or remains in the activation tank (3). In the hydrocyclone, the biofilm-covered growth bodies are separated from the activated sludge, by recycling the growth bodies through an underflow (14) of the hydrocyclone (11) into the activation tank (3) of the activation system (1), with the activated sludge removed exiting through an overflow (12) of the hydrocyclone (11) and being supplied to a sludge treatment or disposed of.

    PROCESS FOR PRODUCING A MICROBIAL STORAGE COMPOUND
    59.
    发明公开
    PROCESS FOR PRODUCING A MICROBIAL STORAGE COMPOUND 审中-公开
    生产微生物储存化合物的方法

    公开(公告)号：EP3176132A1

    公开(公告)日：2017-06-07

    申请号：EP15197866.5

    申请日：2015-12-03

    申请人： Paques I.P. B.V.

    发明人： Dijkman, Hendrik

    IPC分类号： C02F3/12 ,  C02F3/34 ,  C12P7/62

    CPC分类号： C02F3/34 ,  C02F3/006 ,  C02F3/1263 ,  C02F2203/004 ,  C02F2209/16 ,  C02F2209/18 ,  C02F2209/22 ,  C02F2305/06 ,  C12P7/625 ,  Y02W10/15

    摘要： High levels of microbial storage compound (MSC) such as polyhydroxyalkanotaes (PHA) can be produced from wastewater comprising Readily Biodegradable COD (RBCOD) using activated sludge comprising microorganisms capable of accumulating MSC by contacting the wastewater with the activated sludge in the presence of dissolved oxygen during a first period of time, to obtain MSC-loaded activated sludge comprising MSC at a level of at least 60 wt.% based on dry weight of the organic part of the sludge, and then supplying elements essential for growth such as nitrogen and phosphorus and allowing up-take of these elements and limited growth during a second period of time, the supplied amount of at least of one of said essential elements compared to the amount of RBCOD supplied in step a) limiting the growth to an extent that not all MSC is used for growth, to obtain grown activated sludge comprising residual MSC at a level of at least 20 wt.% based on dry weight of the organic part of the sludge; and removing or harvesting part of the MSC-loaded activated sludge and/or part of the grown activated sludge, so that the total average retention time of the sludge is less than 72 h.

    摘要翻译： 使用包含能够积聚MSC的微生物的活性污泥，通过包含易生物降解COD（RBCOD）的废水来产生高水平的微生物储存化合物（MSC），例如聚羟基烷酸酯（PHA），所述微生物通过使废水与活性污泥在溶解氧 在第一段时间内，获得包含MSC的MSC-加载的活性污泥，其含量为污泥有机部分干重的至少60重量％，然后提供生长必需的元素如氮和磷 并且允许这些元素的摄入和第二时间段内的有限的生长，与步骤a）中供应的RBCOD的量相比，至少一种所述基本元素的供应量限制生长至并非全部 MSC用于生长，以基于污泥的有机部分的干重为至少20重量％的水平获得包含残余MSC的生长的活性污泥; 以及去除或收获部分载有MSC的活性污泥和/或部分生长的活性污泥，使得污泥的总平均停留时间少于72小时。