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    • 3. 发明申请
    • PROCESS FOR THE REMOVAL OF SULPHUR COMPOUNDS FROM GASES
    • 从气体中去除硫化合物的方法
    • WO1992010270A1
    • 1992-06-25
    • PCT/NL1991000250
    • 1991-12-04
    • PAQUES B.V.BUISMAN, Cees, Jan, Nico
    • PAQUES B.V.
    • B01D53/14
    • C12M47/18B01D53/48B01D53/507B01D53/52B01D53/84C01B17/05C02F3/345C12M21/04Y02A50/2358Y02C10/06Y02E50/343Y10S423/17
    • 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-oxidising bacteria in the presence of oxygen in a reactor wherein sulphide is oxidised 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.
    • 一种从气态流出物中除去硫化合物的方法,包括以下步骤:a)使气体流出物与其中硫化合物溶解的水溶液接触:b)调节缓冲化合物如碳酸盐和/或碳酸氢盐的浓度, /或磷酸盐在水溶液中的值为20至2000meq / l; c)使含硫化物的水溶液在氧气存在下在硫酸盐氧化成元素硫的反应器中进行硫化物氧化细菌; d)从水溶液中分离元素硫; 和e)将水溶液再循环到步骤a)。 该方法适用于从沼气,通风空气等中除去H2S。可以在步骤a)和步骤c)之后引入附加步骤,将含硫化合物的水溶液 将硫化合物还原成硫化物。 H2S和SO2的去除通过洗涤液中残留的硫含量进一步提高了1-50g / l。
    • 5. 发明申请
    • PROCESS FOR THE TREATMENT OF GASES
    • 气体处理工艺
    • WO1996030110A1
    • 1996-10-03
    • PCT/NL1996000126
    • 1996-03-25
    • PAQUES B.V.BUISMAN, Cees, Jan, Nico
    • PAQUES B.V.
    • B01D53/84
    • C02F3/30B01D53/52B01D53/84C01B17/05C02F3/302C02F3/345Y02A50/2358
    • 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 SO2, COS, CS2, NH3 and HCN.
    • 描述了用于处理含有硫化氢的气体的装置和方法,气体(1)在第一气体洗涤器(5)中用碱性洗涤液体洗涤,废洗涤液体(4)在需氧中处理 反应器(6)在硫化物 - 氧化细菌存在下用氧气和来自好氧反应器(6)的流出物(9)被再次用作洗涤液体(3),并且在氧气处理期间形成的元素硫被从 在厌氧反应器(17)中用硫酸盐还原细菌处理已经除去硫的流出物(19),流出物(13),并返回到好氧反应器(6)。 安装和方法也可用于同时除去SO2,COS,CS2,NH3和HCN。
    • 6. 发明申请
    • PROCESS FOR REMOVING SULPHUR COMPOUNDS FROM WATER
    • 从水中除去硫化合物的方法
    • WO1993024416A1
    • 1993-12-09
    • PCT/NL1993000107
    • 1993-05-26
    • PAQUES B.V.BUISMAN, Cees, Jan, Nico
    • PAQUES B.V.
    • C02F03/28
    • C02F3/30B01D53/84B01D2257/30C02F3/28C02F3/345Y02A50/2358Y02E50/343Y02W10/12
    • The invention provides a method for removing sulphur compounds from water which contains low levels of organic matter, by anaerobic reduction of the sulphur compounds to sulphide, followed by partial oxidation of the sulphide to elementary sulphur. The cost-increasing consumption of electron donor (nutrient) during the anaerobic reduction is lowered by one or more of the following measures: a1) keeping the sulphate concentration in the anaerobic effluent at at least 500 mg/l; a2) keeping the sulphite concentration in the anaerobic effluent at at least 100 mg/l; b) keeping the salt concentration, expressed in sodium ion equivalents, in the anaerobic medium at at least 3 g/l; c) keeping the sulphide concentration in the anaerobic influent at at least 100 mg/l; d) introducing an inhibitor into the anaerobic treatment medium, which inhibitor is more toxic to the methane-producing bacteria than to incompletely oxidising sulphate-reducing bacteria or sulphate-reducing bacteria oxidising compounds having one carbon atom.
    • 本发明提供一种通过将硫化合物厌氧还原成硫化物,然后将硫化物部分氧化成单质硫,从含水量低的有机物质中除去硫化合物的方法。 在厌氧还原期间,电子供体(营养)的成本增加消耗被降低了以下一种或多种措施:a1)将厌氧流出物中的硫酸盐浓度保持在至少500mg / l; a2)将厌氧流出物中的亚硫酸盐浓度保持在至少100 mg / l; b)将在厌氧培养基中以钠离子当量表示的盐浓度保持在至少3g / l; c)将厌氧流入物中的硫化物浓度保持在至少100 mg / l; d)向厌氧处理介质中引入抑制剂,该抑制剂对产生甲烷的细菌更具毒性,不如不完全氧化具有一个碳原子的硫酸盐还原菌或硫酸盐还原菌氧化化合物。
    • 7. 发明申请
    • PROCESS FOR THE TREATMENT OF WATER CONTAINING SULPHUR COMPOUNDS
    • 含硫硫化合物的处理方法
    • WO1991016269A1
    • 1991-10-31
    • PCT/NL1991000059
    • 1991-04-11
    • PAQUES B.V.BUISMAN, Cees, Jan, Nico
    • PAQUES B.V.
    • C02F03/30
    • C02F3/06C01B17/06C02F3/28C02F3/345Y02W10/15Y10S210/903Y10S210/912
    • A process is provided for the treatment of water containing sulphide wherein the sulphide is oxidized in an aerobic reactor having a minimum sulphide sludge load. The minimum sulphide load is at least 10 mg of sulphide per mg of the nitrogen present in the sludge per hour, the sludge load being calculated on the basis of the sulphide oxidizing part of the biomass. The minimum sulphide load may also be defined as 25 mg of sulphide per liter of reactor material per hour. The sulphide can be largely oxidized to elemental sulphur which is then separated and reused. Waste water also containing organic matter in addition to varying levels of sulphide is purified without interference of filamentous bacteria using a two step aerobic process. The process for sulphide removal can be used for the treatment of waste water having high levels of sulphur compounds such as sulphate, sulphite and thiosulphate by first reducing these sulphur compounds in an aerobic step. Heavy metals are removed from water by adding sulphide to the water and precipitating the metals as sulphides; the sulphide can be added by reducing sulphur compounds already present.
    • 提供了一种处理含硫硫化物的方法,其中硫化物在具有最小硫化物污泥负荷的需氧反应器中被氧化。 最小硫化物负荷是每小时每个污泥中存在的氮至少10毫克的硫化物,污泥负荷是基于生物质的硫化物氧化部分计算的。 最小硫化物负载也可以定义为每小时每升反应器材料25mg硫化物。 硫化物可以很大程度上被氧化成元素硫,然后将其分离并重复使用。 除了不同程度的硫化物之外,还含有有机物质的废水在不受丝状细菌干扰的情况下使用两步有氧过程进行纯化。 通过首先在有氧步骤中还原这些硫化合物,可以将去除硫化物的方法用于处理具有高含量硫化合物如硫酸盐,亚硫酸盐和硫代硫酸盐的废水。 通过向水中加入硫化物并将金属沉淀为硫化物,从水中除去重金属; 可以通过还原已经存在的硫化合物来加入硫化物。
    • 9. 发明申请
    • SETTLING DEVICE FOR A FLUID CONTAINING LIQUID, GAS AND PARTICULATE MATERIAL, AS WELL AS A CLEANING DEVICE PROVIDED HEREWITH AND A METHOD FOR CLEANING WASTE WATER
    • 含有液体,气体和颗粒材料的流体装置,作为提供给您的清洁装置和清洁废水的方法
    • WO1996032177A1
    • 1996-10-17
    • PCT/NL1996000156
    • 1996-04-10
    • PAQUES B.V.VELLINGA, Sjoerd, Hubertus, Jozef
    • PAQUES B.V.
    • B01D21/00
    • C02F3/2886B01D19/0042B01D21/0039B01D21/0045B01D21/0069B01D21/2433B01D21/2444B01D21/2494C02F3/02Y02W10/15
    • The present invention relates to a settling device (2) for a fluid containing liquid, gas and particulate material. The device (2) comprises liquid-discharge means (15) fitted close to the water level of the fluid and supply means for supplying the fluid at the bottom of the settling chamber. In the settling chamber one or more caps (12) are disposed with their longitudinal axis at an angle to the water level, such that fluid supplied at the bottom of the settling chamber flows obliquely up, forced along the bottom of the at least one cap. Whilst gas bubbles contained therein collect in the ridge (17) of the at least one cap. The gas collected in the ridge of the at least one cap is trapped by means of gas-discharge means (18) beneath the water level of the fluid. Preferably, use is made of a row containing a multiplicity of caps (12) which are disposed in oblique, overlapping and parallel arrangement. The caps (12) can be fitted at an angle of 60 DEG relative to the water level and preferably have a mutual interval of about 6 cm. The invention further relates to a purifier provided with a settling device of this kind and to a method for the anaerobic purification of waste water using a settling device or purifier according to the invention.
    • 本发明涉及一种用于含有液体,气体和颗粒材料的流体的沉降装置(2)。 装置(2)包括靠近流体水位安装的排液装置(15)和用于在沉降室底部供应流体的供应装置。 在沉降室中,一个或多个盖子(12)以其纵向轴线与水平面成一角度设置,使得在沉降室底部供应的流体向上倾斜地流动,沿着至少一个盖子的底部被迫 。 其中包含的气泡聚集在至少一个盖的隆起(17)中。 收集在至少一个盖的脊中的气体通过在流体的水位下方的气体排出装置(18)而被捕获。 优选地,使用包含以倾斜,重叠和平行布置的多个盖(12)的行。 盖(12)可以相对于水位成60度的角度安装,优选地具有约6cm的相互间隔。 本发明还涉及一种具有这种沉降装置的净化器以及使用根据本发明的沉降装置或净化器的废水的厌氧净化方法。