WASTE HANDLING METHOD
    34.
    发明授权
    WASTE HANDLING METHOD 失效
    ABFALLBEHANDLUNG

    公开(公告)号:EP0569372B1

    公开(公告)日:1997-03-12

    申请号:EP92901132.8

    申请日:1991-10-22

    申请人: SEEC, INC.

    IPC分类号: C02F11/04 C02F9/00 C02F3/28

    摘要: The invention provides a method for transporting waste from one location to another, treating the waste to produce a biogas, and utilizing a portion of that biogas to enhance plant growth and/or as a fuel source. The waste is loaded into a bladder (11) included in a railroad car (50), and the waste is transported to a remote treatment facility for unloading. The waste is then treated by anaerobic digestion to produce the biogas.

    摘要翻译: 本发明提供了一种用于将废物从一个位置运输到另一个位置的方法,处理废物以产生沼气,以及利用该部分沼气来增强植物生长和/或作为燃料源。 废物被装载到包括在铁路车辆(50)中的气囊(11)中,并将废物运送到远程处理设备以进行卸载。 然后通过厌氧消化处理废物以产生沼气。

    PROCESS FOR THE REMOVAL OF HYDROGENSULPHIDE (H2S) FROM BIOGAS
    35.
    发明授权
    PROCESS FOR THE REMOVAL OF HYDROGENSULPHIDE (H2S) FROM BIOGAS 失效
    工艺对废水硫化氢(H2S)FROM沼气。

    公开(公告)号:EP0487705B1

    公开(公告)日:1995-09-20

    申请号:EP91912289.5

    申请日:1991-06-05

    申请人: Paques B.V.

    IPC分类号: B01D53/00 C02F3/28

    摘要: A process for removing H2S from biogas is provided, wherein the biogas is treated with an alkaline scrubbing liquid, the alkalinity necessary for absorption of H2S originating from an aerobic biological waste water treatment plant. Thus, the water/biomass mixture form the aerobic treatment or the clarified effluent can be used as a scrubbing liquid. The water flow/gas flow ratio in the scrubbing process is preferably 0.2 or greater. The liquid wherein H2S is absorbed can be recycled to the aerobic phase for oxidising the H2S. The process can be performed using a closed column gas scrubber equipped with inlet and outlet for biogas, inlet and outlet for treated waste water and means for contacting biogas and waste water.

    PROCESS FOR THE REMOVAL OF SULPHUR COMPOUNDS FROM GASES
    36.
    发明授权
    PROCESS FOR THE REMOVAL OF SULPHUR COMPOUNDS FROM GASES 失效
    程序脱除组成的气体的硫磺成分。

    公开(公告)号:EP0561889B1

    公开(公告)日:1994-11-02

    申请号:EP92900559.3

    申请日:1991-12-04

    申请人: Paques B.V.

    IPC分类号: B01D53/14 B01D53/34 C02F3/34

    摘要: PCT No. PCT/NL91/00250 Sec. 371 Date May 26, 1993 Sec. 102(e) Date May 26, 1993 PCT Filed Dec. 4, 1991 PCT Pub. No. WO92/10270 PCT Pub. Date Jun. 25, 1992.A process for the removal of sulphur compounds from a gaseous effluent, comprising the steps of: a) contacting the gaseous effluent with an aqueous solution wherein sulphur compounds are dissolved; b) adjusting the concentration of buffering compounds such as carbonate and/or bicarbonate and/or phosphate in the aqueous solution to a value between 20 and 2000 meq/l; c) subjecting the aqueous solution containing sulphide to sulphide-oxidizing bacteria in the presence of oxygen in a reactor wherein sulphide is oxidized to elemental sulphur; d) separating elemental sulphur from the aqueous solution; and e) recycling the aqueous solution to step a). This process is suitable for removing H2S from biogas, ventilation air etc. It can be used for removing SO2 from combustion gases by introducing the additional step, after step a) and before step c), of subjecting the aqueous solution containing the sulphur compounds to a reduction of the sulphur compounds to sulphide. H2S and SO2 removal is further enhanced by a residual sulphur content in the washing liquid of 1-50 g/l.

    MEANS AND METHOD FOR ENHANCING PLANT GROWTH UNDER FIELD CONDITIONS
    37.
    发明公开
    MEANS AND METHOD FOR ENHANCING PLANT GROWTH UNDER FIELD CONDITIONS 失效
    系统在VERFAHREN ZUM VERBESSERN DES PFLANZENWACHSTUMS UNTER FELDBEDINGUNGEN。

    公开(公告)号:EP0556315A1

    公开(公告)日:1993-08-25

    申请号:EP92900810.0

    申请日:1991-10-22

    IPC分类号: A01G7 B61D7 C02F3 C05F17 C12M1

    摘要: Système économique et pratique permettant de stimuler la croissance des plantes à l'aide d'un apport de dioxyde de carbone gazeux (30). On plante les végétaux dans une tranchée allongée (10) de préférence en les serrant au maximum, ce qui leur permet de pousser suffisamment pour former une voûte fermée. Le gaz riche en dioxyde de carbone (30) peut arriver dans la tranchée par des conduites (32) situées sous le niveau de la voûte. Lesdites tranchées peuvent comporter un fond (12) et des parois latérales (14) qui s'étendent verticalement vers le haut et de manière divergente l'une par rapport à l'autre pour limiter l'écoulement d'air sous la voûte, ce qui a pour effet de minimiser les effets de dilution de l'atmosphère. Les tranchées (10) peuvent également être orientées de manière pratiquement perpendiculaire à la direction du vent dominant afin de minimiser la tendance du vent à emporter le dioxyde de carbone (30).

    摘要翻译: 通过向植物输送气态二氧化碳来提高植物生长的经济实用系统。 将植被种植在细长的沟槽中,优选地处于过剩状态,由此允许植被充分生长以限定封闭的冠层。 富含二氧化碳的气体可以通过在顶盖水平面下方的导管输送到沟槽。 沟槽可以包括一个底板和侧壁,它们彼此垂直向上延伸并分开,以限制在顶盖下方的空气流动,从而使气氛的稀释效应最小化。 沟槽还可以大致垂直于主风向定向,以最小化风吹走二氧化碳的趋势。

    Process for the purification of waste water and/or waste water sludge
    40.
    发明公开
    Process for the purification of waste water and/or waste water sludge 失效
    Verfahren zum Reinigen von Abwasser und / oder Abwasserschlamm。

    公开(公告)号:EP0051888A1

    公开(公告)日:1982-05-19

    申请号:EP81201181.5

    申请日:1981-10-30

    发明人: Mulder, Arnold

    IPC分类号: C02F3/30 C02F3/28

    摘要: A purification process for waste water and/or waste water sludge, comprising a methane fermentation and subsequent oxidation of the reduced compounds present in the effluent of the methane fermentation by means of aeration, whereby the sulphide from the effluent of the methane fermentation is used as electron donor by the denitrification and whereby the residual reduced compounds from the liquid effluent from the methane fermentation not until the subsequent next step are oxidized by aeration.
    In this way the sulphides, produced by the methane fermentation, are used in appropriate way and simultaneously converted in non troublesome or innocent sulphate.
    In the liquid effluent, remaining after denitrification, the ammonia, which was occurring in the effluent is still present; this ammonia is subsequently oxidized into nitrate at the aeration, whereby the sulphide cannot interfere with, as this sulphide was converted in sulphate with the denitrification. As no sulphide is more present, the aeration is demanding less air and aeration may moreover be more simple.
    The hydrogen sulphide from the gas formed by the methane fermentation also may be used for this purpose, giving in this way the greatest utility of the products formed with the methane fermentation, while the gas is purified in a simple way.

    摘要翻译: 一种用于废水和/或废水污泥的净化方法,包括通过曝气在甲烷发酵的流出物中存在的还原化合物进行甲烷发酵和随后的氧化,由此将来自甲烷发酵的流出物的硫化物用作 电子给体通过反硝化,并且来自甲烷发酵的液体流出物的残余还原化合物直到下一个步骤都被通气而被氧化。 ...以这种方式,通过甲烷发酵产生的水溶液以适当的方式使用,同时转化成非麻烦的或无害的硫酸盐。 在液体流出物中,脱氮后残留在流出物中的氨仍然存在; 这种氨随后在通气时被氧化成硝酸盐,由此硫化物不会干扰,因为这种硫化物在反硝化作用下被转化成硫酸盐。 由于没有硫化物更多存在,曝气要求较少的空气,而且曝气可能更简单。 由甲烷发酵形成的气体的氢化氢也可用于此目的,以这种方式产生与甲烷发酵形成的产物的最大效用,同时以简单的方式纯化气体。