Process for the treatment of gases
    1.
    发明授权
    Process for the treatment of gases 失效
    气体处理工艺

    公开(公告)号:US5976868A

    公开(公告)日:1999-11-02

    申请号:US981722

    申请日:1997-12-23

    摘要: An installation and a method are described for the treatment of a gas containing hydrogen sulphide, the gas (1) being washed in a first gas scrubber (5) with an alkaline wash liquid and the spent wash liquid (4) being treated in an aerobic reactor (6) with oxygen in the presence of sulphide-oxidising bacteria and the effluent (9) from the aerobic reactor (6) being re-used as wash liquid (3) and the elementary sulphur formed during the treatment with oxygen being removed from the effluent (19), the effluent (13) from which sulphur has been removed being treated in an anaerobic reactor (17) with sulphate-reducing bacteria and returned to the aerobic reactor (6). The installation and the method can also be used for simultaneous removal of SO.sub.2, COS, CS.sub.2, NH.sub.3 and HCN.

    摘要翻译: PCT No.PCT / NL96 / 00126 Sec。 371 1997年12月23日第 102(e)日期1997年12月23日PCT 1996年3月25日PCT公布。 公开号WO96 / 30110 PCT 日本1996年10月3日描述了一种用于处理含硫化氢气体的装置和方法,所述气体(1)在第一气体洗涤器(5)中用碱性洗涤液体和废洗涤液体(4)洗涤, 在需氧反应器(6)中在氧化硫氧化细菌的存在下用氧气处理,并且来自需氧反应器(6)的流出物(9)被再次用作洗涤液体(3),并且在处理期间形成元素硫 从流出物(19)中除去氧气,已经从其中除去硫的流出物(13)在具有硫酸盐还原细菌的厌氧反应器(17)中处理并返回到好氧反应器(6)。 安装和方法也可用于同时去除SO2,COS,CS2,NH3和HCN。

    BIOREACTOR COMPRISING A MIXING CHAMBER
    2.
    发明申请
    BIOREACTOR COMPRISING A MIXING CHAMBER 有权
    包括混合室的生物反应器

    公开(公告)号:US20120115218A1

    公开(公告)日:2012-05-10

    申请号:US13318605

    申请日:2010-05-03

    IPC分类号: C12M1/00 B01F15/02

    摘要: The invention relates to a bioreactor (1) comprising a reactor vessel (41) having a mixing chamber (3) separated by a partition (44) from a reaction chamber (2) located generally above the mixing chamber (3), the mixing chamber (3) having an inlet system (4) for influent or a mixture of influent and recycled material, wherein the inlet system (4) has an outlet opening (60-64) in the mixing chamber (3). In an embodiment the partition (44) has an opening (66) forming a connection between the mixing chamber (3) and the reaction chamber (2), wherein the outlet opening (60-64) of the inlet system (4) is directed at the opening in the partition. In an embodiment the mixing chamber (3) has a skeleton for reinforcing the mixing chamber.

    摘要翻译: 本发明涉及一种生物反应器(1),其包括反应器容器(41),该反应器容器(41)具有由通常位于混合室(3)上方的反应室(2)分隔开的隔板(44)的混合室(3) (3)具有用于流入物的入口系统(4)或流入物和再循环材料的混合物,其中所述入口系统(4)在所述混合室(3)中具有出口开口(60-64)。 在一个实施例中,隔板(44)具有形成混合室(3)和反应室(2)之间的连接的开口(66),其中入口系统(4)的出口开口(60-64)被定向 在分区的开口处。 在一个实施例中,混合室(3)具有用于加强混合室的骨架。

    Method and device for the anaerobic purification of a slurry which contains organic constituents
    3.
    发明授权
    Method and device for the anaerobic purification of a slurry which contains organic constituents 有权
    含有有机成分的浆液的厌氧净化方法和装置

    公开(公告)号:US06841072B2

    公开(公告)日:2005-01-11

    申请号:US10472895

    申请日:2003-03-26

    IPC分类号: C02F1/24 C02F3/28

    摘要: Method and apparatus for the anaerobic purification of slurry which contains organic constituents. Slurry which is to be treated is fed periodically or continuously to a mixture-filled, substantially closed reactor (2), while the slurry is forcibly mixed with mixture (3) from the reactor. The mixture in the reactor is subjected to upward flow through it and to a hydrolysis process. The mixture is subjected to floatation by injection of a low-oxygen gas, such as biogas which originates from the reactor, and the floating layer of solids which is formed in the process is returned to the mixture in the reactor, while the low-particle liquid which is formed in the process is discharged as effluent.

    摘要翻译: 含有有机成分的浆料的厌氧净化方法和装置。 要将待处理的浆料周期性或连续地进料到混合物填充的基本上封闭的反应器(2)中,同时将浆料与来自反应器的混合物(3)强制混合。 将反应器中的混合物向上流过,并进行水解过程。 该混合物通过注入低氧气体(例如源自反应器的生物气体)而进行漂浮,并且在该过程中形成的固体的漂浮层返回到反应器中的混合物,而低颗粒 在该过程中形成的液体作为流出物排出。

    METHOD FOR THE FILTRATION OF A BIOREACTOR LIQUID FROM A BIOREACTOR; CROSS-FLOW MEMBRANE MODULE, AND BIOREACTOR MEMBRANE SYSTEM
    5.
    发明申请
    METHOD FOR THE FILTRATION OF A BIOREACTOR LIQUID FROM A BIOREACTOR; CROSS-FLOW MEMBRANE MODULE, AND BIOREACTOR MEMBRANE SYSTEM 审中-公开
    生物反应器液体从生物反应器中过滤的方法; 横流膜模块和生物反应器膜系统

    公开(公告)号:US20110263009A1

    公开(公告)日:2011-10-27

    申请号:US13126678

    申请日:2009-10-30

    摘要: The invention provides a method for the filtration of a bioreactor liquid (10) from a bioreactor (1) with a cross-flow membrane module (20) comprising one or more membranes (40). The method comprises feeding part of the bioreactor liquid (10) to a liquid inlet (21) of the cross-flow membrane module (20), transporting the bioreactor liquid (10) through the cross-flow membrane module (20) in a cross-flow mode, and removing a retentate (12) from a liquid outlet (22) of the cross-flow membrane module (20). The cross-flow membrane module (20) is arranged to allow a liquid downward flow of the bioreactor liquid (10) through the cross-flow membrane module (20). The method further comprises providing the liquid downward flow and a downward gas flow of a gas (30) through the cross-flow membrane module (20). Fouling of the membranes is relatively good prevented or reduced in time. Further, the liquid flow may be reduced relative to conventional configurations.

    摘要翻译: 本发明提供了一种从生物反应器(1)过滤生物反应器液体(10)的方法,其中包括一个或多个膜(40)的交叉流动膜组件(20)。 该方法包括将部分生物反应器液体(10)进料到交叉流动膜组件(20)的液体入口(21),以交叉的方式将生物反应器液体(10)输送通过交叉流动膜组件(20) - 流动模式,以及从所述横流膜组件(20)的液体出口(22)去除滞留物(12)。 横流膜组件(20)被布置成允许生物反应器液体(10)的液体向下流动通过横流膜组件(20)。 该方法还包括提供液体向下的流动和气体(30)通过交叉流动膜组件(20)的向下气流。 膜的结垢相对较好地被预防或减少了时间。 此外,相对于常规构造,液体流动可以减少。

    Biological treatment of spent caustics
    6.
    发明授权
    Biological treatment of spent caustics 有权
    废碱的生物处理

    公开(公告)号:US6045695A

    公开(公告)日:2000-04-04

    申请号:US230585

    申请日:1999-02-10

    CPC分类号: C02F3/345 Y10S210/916

    摘要: A process for the biological treatment of a spent caustic solution containing sulphides is disclosed, wherein the solution is introduced into an aerobic reactor containing sulphide-oxidising bacteria, and the sulphides are partly converted to elemental sulphur and partly to sulphate by controlling the redox potential in the reactor at a value below -300 mV (against an Ag/AgCl reference electrode), or below -97 (against a H.sub.2 reference electrode). Also disclosed is process for the biological treatment of an aqueous solution containing sulphides and/or mercaptans in an aerobic reactor, wherein the solution is treated in the presence of bacteria of the new species Methylophaga sulfidovorans.

    摘要翻译: PCT No.PCT / NL97 / 00437 371日期1999年2月10日 102(e)1999年2月10日PCT PCT 1997年7月23日PCT公布。 公开号WO98 / 04503 日期1998年2月5日公开了一种用于生物处理含有硫化物的废碱溶液的方法,其中将溶液引入含有硫化物 - 氧化细菌的需氧反应器中,硫化物部分地转化为元素硫并部分转化为硫酸盐, 控制反应器中的氧化还原电位低于-300mV(相对于Ag / AgCl参比电极)或低于-97(相对于H2参比电极)。 还公开了在需氧反应器中生物处理含有硫化物和/或硫醇的水溶液的方法,其中在新物种Methylophaga sulfidovorans的细菌存在下处理该溶液。

    Process for the production of hydrogen sulphide from elemental sulphur and use thereof in heavy metal recovery
    7.
    发明授权
    Process for the production of hydrogen sulphide from elemental sulphur and use thereof in heavy metal recovery 有权
    从元素硫生产硫化氢的方法及其在重金属回收中的应用

    公开(公告)号:US06852305B2

    公开(公告)日:2005-02-08

    申请号:US10720102

    申请日:2003-11-25

    摘要: A process is provided for the production of hydrogen sulphide from the bacterial reduction of a mixture of a liquid and elemental sulfur with an electron donor, such as hydrogen gas, carbon monoxide or organic compounds. The bacteria may be Desulforomonas sp. (mesophilic), Desulfotomaculum KT7 (thermophilic), etc. The liquid/sulfur mixture is at a pH ranging from 5 to 9, and the liquid/sulfur mixture contacts the bacteria at a hydraulic retention time of at least 1 day. The hydrogen sulphide is stripped from the liquid medium to produce a gas containing at least 1 volume percent hydrogen sulphide.

    摘要翻译: 提供了从液体和元素硫的混合物与电子给体如氢气,一氧化碳或有​​机化合物的细菌还原产生硫化氢的方法。 细菌可能是脱硫单孢菌 (嗜温),脱硫酵母KT7(嗜热)等。液/硫混合物的pH为5至9,液/硫混合物在至少1天的水力停留时间内接触细菌。 从液体介质中汽提出硫化氢,产生含有至少1体积%硫化氢的气体。