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1.发明公开
公开(公告)号：EP1838630A4
公开(公告)日：2008-02-27
申请号：EP05774824
申请日：2005-08-12
CPC分类号： C02F3/2806 , B01F13/02 , C02F3/102 , Y02E50/343 , Y02W10/15
摘要： A hollow gas transfer fibre is arranged in tows and potted into a module. The module may be used to treat wastewater by supplying hydrogen containing gas via the interior of the fibers to a biofilm present on an exterior surface of the fibers.
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2.发明公开HEADER FOR MODULE OF HOLLOW FIBER MEMBRANES AND METHOD OF POTTING HOLLOW FIBERS 有权头件FOR MODULE中空纤维膜和方法，用于铸造中空纤维
公开(公告)号：EP1812148A1
公开(公告)日：2007-08-01
申请号：EP05810548.7
申请日：2005-10-25
CPC分类号： B01D63/022 , B01D63/023 , B29C45/14385
摘要： Hollow fiber membranes are potted by injection molding a thermoplastic material into a cavity containing the fibers. The cavity is formed in part by the interaction of a mold and a layer of an adhesive pre-applied to a bundle of the membranes.
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公开(公告)号：EP1369165B1
公开(公告)日：2006-07-12
申请号：EP03016134.3
申请日：1996-08-08
CPC分类号： B01D65/08 , B01D61/18 , B01D61/20 , B01D63/02 , B01D63/021 , B01D63/022 , B01D63/023 , B01D63/026 , B01D63/043 , B01D65/02 , B01D69/02 , B01D2313/26 , B01D2315/06 , B01D2321/04 , B01D2321/185 , B01D2321/2066 , C02F1/444
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4.发明公开
公开(公告)号：EP1570897A1
公开(公告)日：2005-09-07
申请号：EP05007924.3
申请日：2001-05-02
IPC分类号： B01D63/02
CPC分类号： B01D63/021 , B01D63/022 , B01D63/023
摘要： In a header (17), or potting head, of a membrane module, each of a plurality of hollow fiber membranes (10) has at least one open end (12) collected together into a group wherein the membranes are surrounded by a solidified adhesive (100) near the ends of the membranes, the open ends of the membranes extend beyond a first side of the solidified adhesive, and a bond between the solidified adhesive and the membranes is less strong than all of the materials in the membrane and any and all bonds between materials in the membranes. A solidified fixing liquid (14) around the membranes extends from the solidified adhesive (100) to a point at or near the ends (12) of the membranes. The solidified fixing liquid (14) : surrounds each membrane (10) for at least a portion of its length in the solidified fixing liquid between the solidified adhesive (100) and the end (12) of each membrane; sealingly connects to the outside of each membrane; does not block the open ends (12) of the membranes; and does not contact the membranes on a second side of the solidified adhesive. A header pan (18) is secured to the solidified fixing liquid (14) in a position where the open ends (12) of the membranes (10) are in fluid communication with a permeate channel in the header pan. The solidified fixing liquid (14) extends to and is secured directly in the header pan (18) and separates the solidified adhesive (100) from the header pan (18).
摘要翻译： 在膜组件的集管（17）或灌封头中，多个中空纤维膜（10）中的每一个具有至少一个收集在一起的开放端（12），其中膜被固化的粘合剂 （100）在膜的端部附近，膜的开口端延伸超过凝固的粘合剂的第一侧，并且凝固的粘合剂和膜之间的结合不如薄膜中的所有材料强， 膜中材料之间的所有键。 膜周围的固化固定液体（14）从固化的粘合剂（100）延伸到膜的端部（12）处或附近的点。 固化的固定液体（14）：在凝固的粘合剂（100）和每个膜的端部（12）之间的凝固的定影液体中围绕其长度的至少一部分的每个膜（10） 密封地连接到每个膜的外部; 不阻挡膜的开口端（12）; 并且不与固化粘合剂的第二侧上的膜接触。 在所述膜（10）的开口端（12）与所述集管盘中的渗透通道流体连通的位置处，将集管盘（18）固定在所述固化的固定液体（14）上。 凝固的固定液体（14）直接延伸到集管盘（18）中并将固定的粘合剂（100）与集油盘（18）分离。
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5.发明公开
公开(公告)号：EP1423338A2
公开(公告)日：2004-06-02
申请号：EP01909364.0
申请日：2001-02-19
CPC分类号： C02F3/30 , B01D53/22 , B01D53/85 , B01D63/06 , B01D63/10 , B01D2313/14 , C02F3/102 , C02F3/20 , C02F3/208 , C02F3/2806 , C02F3/308 , C02F2101/30 , Y02A50/2359 , Y02E50/343 , Y02W10/15 , Y10S210/903 , Y10S210/906
摘要： An apparatus to transfer gas to or from a liquid has a flexible and oxygen permeable but liquid water impermeable membrane, a flexible and gas permeable spacer, an inlet conduit, an outlet conduit and a non-rigid restraint system. When used for treating wastewater, an aerobic biofilm is cultured adjacent the planar elements, an anoxic biofilm is cultivated adjacent the aerobic biofilm and the wastewater is maintained in an anaerobic state. A first reactor for treating wastewater has an anaerobic section, a plurality of gas transfer membrane modules, and an aerobic section. A biofilm is cultivated on the surface of the gas transfer membranes in fluid communication with the anaerobic section. Biological reduction of COD, BOD, nitrogen and phosphorous are achieved. In a second reactor, phosphorous is also removed chemically in a precipitation branch.
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6.发明公开System for withdrawing permeate from a multicomponent liquid substrate 失效从具有多个组件的液体基质的系统和方法Permeatentnahme
公开(公告)号：EP1170052A1
公开(公告)日：2002-01-09
申请号：EP01120849.3
申请日：1996-08-08
发明人： Mahendran, Mailvaganam , Pedersen, Steven Kristian , Henshaw, Wayne Jerald , Behmann, Henry , Rodrigues, Carlos Fernando F.
CPC分类号： B01D65/02 , B01D61/18 , B01D61/20 , B01D63/02 , B01D63/021 , B01D63/022 , B01D63/023 , B01D63/026 , B01D63/043 , B01D65/08 , B01D2321/04 , B01D2321/185 , B01D2321/2066 , C02F1/444
摘要： A system for withdrawing permeate from a multicomponent liquid substrate includes a reservoir for containing substrate at substantially ambient pressure and one or more membrane assemblies, or skeins, each having, a first header and a second header disposed in vertically spaced-apart relationship with opposed proximal faces at a selected distance and a multiplicity of hollow fiber filtration membranes, or fibers, having end portions sealingly secured to the headers. All open ends of the fibers open to a permeate-discharging face of at least one header, the fibers being disposed essentially vertically, each of the fibers having a length between the opposed proximal faces of the headers, the exterior of the fibers along their lengths in fluid communication with the substrate. Permeate collection means, sealingly connected to any permeate-discharging face of the headers are in fluid communication with open ends of the fibers. A source of suction in fluid communication with the permeate collection means is operable to apply sufficient suction to withdraw permeate through the fibers. The length of the fibers is less than 5% greater than the selected distance and permits restricted displacement of an intermediate portion of each fiber. An embodiment includes gas distribution outlets for discharging bubbles, disposed between the fibers. In another embodiment, the headers of the skeins are elongated, having a short and a long dimension perpendicular to the fibers, and contain no more than 30 fibers across the short dimension, the gas distribution outlets being disposed in a row parallel to the long dimension of the headers.
摘要翻译： 一种用于回抽从多组分液体的基材渗透系统包括：用于在基本上环境的压力和一个或多个膜组件，或绞丝含底物，每个都具有，第一首标和与相反的近端垂直地间隔开的关系设置的第二报头中的储 面在一个选定的距离和中空纤维过滤膜或纤维的多个，具有密封地固定到集管的端部。 打开到至少一个报头的渗透排出面的纤维的所有开口端，该纤维被置于基本上垂直，每一个都具有纤维沿着它们的长度的外部报头的相对的近端面之间的长度，纤维的 在与基片流体连通。 渗透收集装置，密封地连接到集流管的任何渗透物排出面是在与纤维的开口端流体连通。 吸入的与渗透物收集装置流体连通的源可操作以施加足够的吸力以撤回过纤维渗透。 纤维的长度比所选择的距离时小于5％，并且允许每个光纤的中间部分的受限制的位移。 一个实施例包括用于排出气泡，纤维之间设置气体分布出口。 在另一个实施方案中，绞丝的头是细长的，具有短和长尺寸垂直于所述纤维，和包含在整个短尺寸不超过30米的纤维，该气体分配出口被设置在平行的行设定为长尺寸 的头。
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公开(公告)号：EP1146954A1
公开(公告)日：2001-10-24
申请号：EP00975727.9
申请日：2000-11-15
CPC分类号： B01D65/08 , B01D61/145 , B01D61/147 , B01D61/18 , B01D63/02 , B01D63/024 , B01D63/04 , B01D63/043 , B01D63/16 , B01D65/02 , B01D65/10 , B01D65/104 , B01D2313/06 , B01D2313/08 , B01D2315/04 , B01D2315/06 , B01D2317/04 , B01D2321/04 , B01D2321/12 , B01D2321/185 , C02F1/444
摘要： A filtering element has ultrafiltration or microfiltration hollow fiber membranes extending horizontally between a pair of opposed horizontally spaced, vertically extending headers. Side plates extending between the pair of vertically extending headers define a vertical flow channel through the element. Modules are created by placing the elements in place without obstructing the vertical flow channels. Each element may be released from the frame, however, and removed by sliding it in a direction substantially normal to its headers without disassembling the remainder of the module. The elements have associated releasable water tight fittings between the elements and a permeate collector, the releasable water tight fittings being releasable by removing an element from the frame. An aerator below the module has a plurality of air holes located to provide a line of air holes below each element or below a side plate between each pair of elements. In a preferred process, permeate flux is less than 50 L/m /h and preferably less than 35 L/m /h, aeration to scrub the membranes is provided during periods of time when permeation is periodically stopped and accumulated solids are removed by periodically emptying and refilling a tank containing the elements. A bubble point test is applied to each row of the module in turn, the presence of bubbles in a particular flow channel indicating which, if any, elements of a row are suitable.
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公开(公告)号：EP0979213A1
公开(公告)日：2000-02-16
申请号：EP98914730.1
申请日：1998-04-01
CPC分类号： B01D65/08 , B01D61/145 , B01D61/147 , B01D61/16 , B01D2311/04 , B01D2321/04 , B01D2321/185 , B01D2321/2075 , B01D2321/30 , C02F1/283 , C02F1/444 , C02F1/52
摘要： A system of purifying water to remove at least one of natural organic matter, color, turbidity, bacteria, cysts and oocysts, viruses, arsenic compounds and insoluble impurities. The system comprises the steps of providing a body of water to be purified; controlling the pH of the body in a range of 5 to 8; and adding (12) a coagulant to the body to provide a floc. The floc is maintained in the body in a concentration in the range of 1 to 6, for purposes of adsorbing at least one of the natural organic matter, color, turbidity and bacteria to provide treated water. Thereafter, a first portion of the treated water and floc is removed (8) from the body of water. A submerged semi-permeable membrane (6) is provided in the body of water for removing (4) a second portion of the treated water. The membrane has a pore size in the range of 0.02 to 1 νm to provide a permeate comprised of purified water and to provide a retentate containing the floc. The body of water is treated with a mixing means (16) to minimize membrane fouling and to provide thorough mixing of the floc in the body of water.
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9.发明授权PROCEDE DE NETTOYAGE D'UNE INSTALLATION DE FILTRATION DU TYPE A MEMBRANES IMMERGEES 失效清洁过程FOR水下膜厂FITTER
公开(公告)号：EP0863793B1
公开(公告)日：1999-10-20
申请号：EP96939147.3
申请日：1996-11-19
CPC分类号： B01D65/02 , B01D2321/04 , B01D2321/164
摘要： A method for cleaning a filtration apparatus comprising a plurality of membranes immersed in at least one tank containing the effluent to be treated. According to the method, the effluent is at least partially removed from the tank to expose the membranes to the air, and at least one cleaning solution is fed through said membranes in the opposite direction to the effluent filtration flow by delivering said cleaning solution to the permeate side of said membranes.
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公开(公告)号：EP0738180A1
公开(公告)日：1996-10-23
申请号：EP95903730.0
申请日：1994-12-19
CPC分类号： B01D65/02 , B01D2321/168
摘要： During normal operation of a hollow fiber membrane in contact with dirty water, a fouling film is produced on the surface of the membrane. Despite the fouling film, the membrane affords a desirable initial stable transmembrane flux which decreases as a function of time by at least 20 %. A method is disclosed for cleaning the outer surface of a microfiltration (MF) or ultrafiltration (UF) semipermeable hollow fiber membrane after its initial stable transmembrane flux has been decreased to an unacceptably low level. The method is specifically applicable to any fiber used to withdraw purified water from dirty water, particularly water containing organic matter including beneficial bacteria and/or undesirable inorganic salts, where the viability of the bacteria population is to be maintained. The membrane is cleaned by flowing a cleaning fluid, preferably a biocidal oxidative electrolyte having an oxidizing anion and an associated cation through the clean, permeate-side of the membrane, at low pressure no more than the bubble pressure breakthrough, usually
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