Method for desulphurization of gases
    1.
    发明授权
    Method for desulphurization of gases 有权
    气体脱硫方法

    公开(公告)号:US06656249B1

    公开(公告)日:2003-12-02

    申请号:US09936204

    申请日:2001-09-10

    IPC分类号: B01D5314

    摘要: A method of removing hydrogen sulphide from a gas stream wherein the hydrogen sulphide is scrubbed from the gas phase by an aqueous solution, the hydrogen sulphide in the aqueous solution is biologically oxidized in a bioreactor to produce elemental sulphur, and the elemental sulphur is separated from the aqueous solution, characterized in that the gas stream to be treated is cooled to such a degree that at least sufficient water vapour condenses from the gas stream to compensate for the discharge stream for the purpose of removing salts. This means that no water need be supplied to the bioreactor. This method is suitable, in particular, for gas streams which contain hydrogen sulphide, the hydrogen sulphide having been obtained by catalytic conversion of sulphur compounds.

    摘要翻译: 从气流中除去硫化氢的方法,其中通过水溶液从气相中洗涤硫化氢,水溶液中的硫化氢在生物反应器中生物氧化以产生元素硫,并且将元素硫从 所述水溶液的特征在于,待处理的气流被冷却至至少足够的水蒸气从所述气流中冷凝以补偿所述排出物流以除去盐的程度。 这意味着不需要向生物反应器供应水。 该方法特别适用于含有硫化氢的气流,硫化氢是通过硫化合物的催化转化而获得的。

    Device Comprising a New Cathode and Method for Generating Electrical Energy with Use Thereof
    2.
    发明申请
    Device Comprising a New Cathode and Method for Generating Electrical Energy with Use Thereof 审中-公开
    包含新阴极的装置及其使用产生电能的方法

    公开(公告)号:US20100227203A1

    公开(公告)日:2010-09-09

    申请号:US12223192

    申请日:2007-02-13

    IPC分类号: H01M8/16 H01M8/06

    摘要: A first embodiment is disclosed, relating to a device including an anode and a cathode. The anode and cathode are placed in a separate anode and cathode compartment. In at least one embodiment of the device, electron transfer takes place from the cathode to a terminal electron acceptor via a redox mediator. In at least one embodiment, the redox mediator includes the Fe (II)/Fe (III) redox couple. According to a further aspect, of at least one embodiment of the invention, relates to a method for generating electric energy with use of the device according to at least one embodiment of the invention.

    摘要翻译: 公开了涉及包括阳极和阴极的装置的第一实施例。 将阳极和阴极放置在单独的阳极和阴极室中。 在器件的至少一个实施例中,电子转移通过氧化还原介体从阴极发送到末端电子受体。 在至少一个实施方案中,氧化还原介体包括Fe(II)/ Fe(III)氧化还原对。 根据另一方面,本发明的至少一个实施例涉及一种使用根据本发明的至少一个实施例的装置产生电能的方法。

    Process for the production of hydrogen sulphide from elemental sulphur and use thereof in heavy metal recovery
    5.
    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。

    Process for the treatment of waste water containing heavy metals
    6.
    发明授权
    Process for the treatment of waste water containing heavy metals 有权
    含重金属废水处理工艺

    公开(公告)号:US06630071B1

    公开(公告)日:2003-10-07

    申请号:US09869346

    申请日:2001-06-28

    IPC分类号: C02F300

    摘要: A process for the treatment of waste water containing heavy metals in which sulphur components and/or metals are biologically reduced to precipitate the metals as water-insoluble metal species, which are separated from the waste water. The biological reduction and the precipitation of the metal species are carried out in a moving sand bed, in which sand particles partly immobilize the bacteria and retain the precipitated metal species, treated waste water is separated from the precipitated metal species and the precipitated metal species are subsequently separated from the sand particles. Metals like selenium and uranium can be precipitated without sulphur components, whereas metals like antimony, cadmium, copper, zinc and the like are precipitated as sulphides.

    摘要翻译: 一种用于处理含有重金属的废水的方法,其中硫成分和/或金属被生物降低以将金属沉淀为与废水分离的水不溶性金属物质。 金属物质的生物还原和沉淀在移动的砂床中进行,其中砂粒部分地固定细菌并保留沉淀的金属物质,处理的废水与沉淀的金属物质分离,沉淀的金属物质 随后与砂粒分离。 诸如硒和铀的金属可以没有硫成分沉淀,而像锑,镉,铜,锌等金属作为硫化物沉淀。

    Device and method for performing a biologically catalyzed electrochemical reaction
    8.
    发明授权
    Device and method for performing a biologically catalyzed electrochemical reaction 有权
    用于进行生物催化的电化学反应的装置和方法

    公开(公告)号:US09105913B2

    公开(公告)日:2015-08-11

    申请号:US12736619

    申请日:2009-04-23

    摘要: A device includes a first electrode compartment, the anode compartment, and a second electrode compartment, the cathode compartment, with a quantity of an anode fluid including an electrochemically oxidizable substrate and optional further compounds in the anode compartment, a quantity of a cathode fluid including an electrochemically reducible substrate and optional further compounds in the cathode compartment, and further an anode at least partially in contact with the anode fluid in the anode compartment and a cathode at least partially in contact with the cathode fluid in the cathode compartment. In at least one embodiment, the anode and cathode are electrically connected and on the surface of the anode and the cathode a catalyst is present for respective catalysis of the electrochemical conversion of the electrochemically oxidizable substrate via an electrochemical oxidation reaction and for catalysis of the electrochemical conversion of the electrochemically reducible substrate via an electrochemical reduction reaction, the catalyst including electrochemically active micro-organisms on at least one of the anode or cathode.

    摘要翻译: 一种装置包括第一电极室,阳极室和第二电极室,阴极室,一定数量的阳极流体,包括电化学可氧化的衬底和阳极室中任选的其它化合物,一定数量的阴极流体包括 阴极室中的电化学还原性底物和任选的其它化合物,以及至少部分地与阳极室中的阳极流体接触的阳极和至少部分地与阴极室中的阴极流体接触的阴极。 在至少一个实施方案中,阳极和阴极电连接并且在阳极和阴极的表面上存在催化剂,用于通过电化学氧化反应各种催化电化学可氧化底物的电化学转化并催化电化学 通过电化学还原反应转化电化学还原的底物,该催化剂包括至少一个阳极或阴极上的电化学活性微生物。

    Process for producing hydrogen
    10.
    发明授权
    Process for producing hydrogen 有权
    生产氢的方法

    公开(公告)号:US07439047B2

    公开(公告)日:2008-10-21

    申请号:US10563736

    申请日:2004-07-09

    IPC分类号: C12P3/00 H01M8/06

    摘要: A process for producing hydrogen from bio-oxidisable material is disclosed herein. The process comprises the steps of—introducing the bio-oxidisable material into a reactor provided with an anode and a cathode optionally separated by a cation exchange membrane and containing anodophilic bacteria in an aqueous medium;—applying a potential between the anode and cathode 0.05 and 1.5 volt, while maintaining a pH of between 3 and 9 in the aqueous medium; —collecting hydrogen gas at the cathode. The hydrogen production process can be intermittently switched to an electric power generation stage (biofuel cell) by adding oxygen to the cathode and separating the anode and cathode spaces by means of a cation exchange membrane.

    摘要翻译: 本文公开了一种由生物可氧化材料生产氢的方法。 该方法包括以下步骤:将生物可氧化材料引入反应器中,所述反应器具有任选由阳离子交换膜分离并在水性介质中含有阳离子细菌的阳极和阴极; - 将阳极和阴极之间的电势0.05和 1.5伏,同时在水介质中保持3至9的pH; - 在阴极处收集氢气。 通过向阴极添加氧并通过阳离子交换膜分离阳极和阴极空间,氢气生产过程可以间歇地切换到发电阶段(生物燃料电池)。