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公开(公告)号：EP1594807A1
公开(公告)日：2005-11-16
申请号：EP04710766.9
申请日：2004-02-13
CPC分类号： C02F3/1273 , B01D63/02 , B01D63/021 , B01D63/022 , B01D63/027 , B01D63/04 , B01D69/084 , B01F3/04269 , B01F2003/04382 , C02F1/78 , C02F3/102 , C02F3/103 , C02F3/208 , C02F3/302 , C02F2303/20 , Y02W10/15
摘要： A membrane supported biofilm reactor uses modules having fine, hollow fibres (19), for example, made from dense wall Poly methylpentene (PMP) used in tows or formed into a fabric (26). In one module, one or more sheets of the fabric are potted into a module to enable oxygen containing gas to be supplied to the lumens of the hollow fibres. Various reactors and processes, for example to treat wastewater, using such modules are described. Mechanical, chemical and biological methods are used to control the thickness of the biofilm (30).
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32.发明授权CYCLIC AERATION SYSTEM FOR SUBMERGED MEMBRANE MODULES 有权ZYKLISCH ARBEITENDESBELÜFTUNGSSYSTEMFÜRTAUCHMEMBRANMODUL
公开(公告)号：EP1119522B1
公开(公告)日：2004-04-14
申请号：EP99947155.0
申请日：1999-10-07
发明人： COTE, Pierre , JANSON, Arnold , RABIE, Hamid , SINGH, Manwinder
CPC分类号： B01D65/08 , B01D61/18 , B01D63/02 , B01D63/024 , B01D63/026 , B01D63/043 , B01D65/02 , B01D2313/26 , B01D2315/06 , B01D2321/04 , B01D2321/18 , B01D2321/185 , B01F3/04113 , B01F3/04439 , B01F13/0266 , B01F2003/04319 , B01F2003/04361 , C02F1/444 , C02F1/74 , C02F3/1273 , C02F3/201 , C02F2209/40 , C02F2209/44 , Y02W10/15
摘要： An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate of air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.
摘要翻译： 描述了一种用于清洁或抑制浸在罐12中的罐水18中的多个膜组件20的结垢的装置。通过曝气器38供应空气以产生有效清洁或抑制膜组件结垢的气泡36 。 空气流在更高的流速和较低的流速之间交替，较低的流速小于较高流速的一半，重复循环持续时间不超过120秒，而渗透物通过 膜组件20.这在罐水18中产生瞬时流动状态，罐水18在每个循环的大部分时被加速或减速，使得其在渗透期间很少处于稳定状态。 这样可以有效地清洁膜，而不会使曝气系统过载。 流量由一组阀254和控制器256控制
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33.发明公开A membrane module comprising swayable hollow fiber membranes 无效Membranmodul mit frei schwingenden Hohlfasermembranen
公开(公告)号：EP1369165A1
公开(公告)日：2003-12-10
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
摘要： A membrane module comprises a plurality of swayable porous hollow fiber membranes (212), the membranes (212) being potted in a closely spaced-apart relationship in a header (283), without being confined in the shell of a module. A permeate collection means (281) is in fluid communication between lumens of the membranes (212) and a permeate outlet (281p). The module further comprises a gas supply means having a hole for discharging bubbles. This hole is connected through the header (283) to one or more air tubes (286u) adapted to be connected to a source of a gas for providing, from locations within the module, gas bubbles such that, in use, said bubbles rise along the outer surfaces of the membranes (212) and cause the membranes (212) to sway.
摘要翻译： 膜组件包括多个可摇摆的多孔中空纤维膜（212），所述膜（212）在集管（283）中以紧密间隔的关系封装，而不被限制在模块的外壳中。 渗透物收集装置（281）在膜（212）的腔和渗透物出口（281p）之间流体连通。 模块还包括具有用于排出气泡的孔的气体供给装置。 该孔通过集管（283）连接到适于连接到气源的一个或多个空气管（286u），用于从模块内的位置提供气泡，使得在使用中，所述气泡沿着 膜（212）的外表面并使膜（212）摆动。
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公开(公告)号：EP1249268A2
公开(公告)日：2002-10-16
申请号：EP02011905.3
申请日：2001-05-02
IPC分类号： B01D63/02
CPC分类号： B01D63/021 , B01D63/022 , B01D63/023
摘要： To pot membranes in a header, a dense, viscous liquid, suspension or, preferably, a thixotropic, water soluble gel, is placed in a header pan in space reserved for a permeate channel. A plurality of hollow fibre membranes are collected together and their open ends are inserted into the gel. A fixing liquid, typically a resin, is placed over the gel. The fixing liquid surrounds each membrane and then solidifies, simultaneously sealing the outer surfaces of the membranes and forming a plug in the opening of the header to complete the permeate channel. After the fixing liquid has solidified, the gel is removed by various means. The space initially occupied by the gel becomes part of the permeate channel after the gel is removed. In one embodiment, membranes are grouped by a cushioning adhesive which later surrounds the membranes where they exit the completed header.
摘要翻译： 将头部中的罐膜，稠密，粘稠的液体，悬浮液或优选的触变性水溶性凝胶置于保留用于渗透通道的空间中的集管盘中。 将多个中空纤维膜收集在一起，将其开口端插入凝胶中。 将定影液（通常为树脂）放置在凝胶上。 固定液体围绕每个膜，然后固化，同时密封膜的外表面并在集管的开口中形成塞子以完成渗透通道。 固定液固化后，通过各种方式除去凝胶。 在凝胶去除之后，最初由凝胶占据的空间成为渗透通道的一部分。 在一个实施方案中，膜由缓冲粘合剂分组，缓冲粘合剂稍后包围膜，在那里它们离开完成的头部。
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35.发明公开
公开(公告)号：EP1214140A1
公开(公告)日：2002-06-19
申请号：EP01931266.9
申请日：2001-05-02
IPC分类号： B01D63/02
CPC分类号： B01D63/021 , B01D63/022 , B01D63/023
摘要： To pot membranes in a header, a dense, viscous liquid, suspension or, preferably, a thixotropic, water soluble gel (30), is placed in a header pan in space reserved for a permeate channel. A plurality of hollow fibre membranes (10) are collected together and their open ends are inserted into the gel. A fixing liquid, typically a resin (14), is placed over the gel (30). The fixing liquid (14) surrounds each membrane (10) and then solidifies, simultaneously sealing the outer surfaces of the membranes and forming a plug in the opening of the header to complete the permeate channel. After the fixing liquid has solidified, the gel (30) is removed by various means. The space initially occupied by the gel becomes part of the permeate channel after the gel is removed. In one embodiment, membranes are grouped by a cushioning adhesive which later surrounds the membranes where they exit the completed header.
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36.发明公开
公开(公告)号：EP1140706A1
公开(公告)日：2001-10-10
申请号：EP99960738.5
申请日：1999-12-17
CPC分类号： C02F3/1273 , C02F1/444 , C02F3/006 , C02F3/20 , C02F3/223 , C02F3/301 , C02F3/302 , C02F2101/16 , C02F2209/006 , C02F2209/04 , C02F2209/14 , C02F2209/15 , C02F2209/22 , C02F2209/44 , Y02W10/15
摘要： A single tank submerged membrane bioreactor for treating feed water having unacceptable levels of ammonia or total nitrogen has both a membrane scouring bubble supply and an oxygenating bubble supply. The membrane scouring bubble supply continuously provides large scouring bubbles to clean the membranes. Permeate is continuously withdrawn from the membranes at a high rate but the large scouring bubbles do not transfer sufficient oxygen to the mixed liquor to create aerobic conditions in the reactor. The oxygenating bubble supply is operated to provide small bubbles of air or oxygen that intermittently produce aerobic conditions in a significant part of the mixed liquor. Alternating aerobic and anoxic conditions occur in a significant portion of the tank suitable for nitrification and denitrification. The level of dissolved oxygen (DO) or oxygen reduction potential (ORP) in the tank is measured by sensors and determines when the oxygenating bubble supply will be turned on or off between set minimum and maximum time limits.
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37.发明公开SYSTEM FOR MAINTAINING A CLEAN SKEIN OF HOLLOW FIBRES WHILE FILTERING SUSPENDED SOLIDS 审中-公开系统不断净化的中空纤维束在过滤过程中固体悬浮物
公开(公告)号：EP1053054A1
公开(公告)日：2000-11-22
申请号：EP98958129.3
申请日：1998-12-02
CPC分类号： B01D65/08 , B01D61/18 , B01D61/20 , B01D63/021 , B01D63/022 , B01D63/023 , B01D63/026 , B01D63/043 , B01D65/02 , B01D2321/02 , B01D2321/12 , B01D2321/185 , C02F1/444 , Y10S261/70
摘要： The outer surfaces of hollow fiber membranes in a skein, or a bank or cassette of stacked skeins, are kept essentially free of solids by maintaining a substantially uniform flow of a stream of coarse bubbles through each of plural orifices in an aerator disposed beneath the fibers. Aerators for skeins used in microfiltration of wastewater in a tank are periodically flushed by injecting flushing air into permeate returned to the tank over a short period. The air is injected into returning permeate for less than 1 minute, preferably less than 20 sec so as to produce discrete masses of water which are flowed laterally through the body of the aerator, cleaning its walls and maintaining the orifices essentially free from plugging.
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公开(公告)号：EP0592372B1
公开(公告)日：1998-12-02
申请号：EP93810709.1
申请日：1993-10-08
CPC分类号： C02F9/005 , B01D61/022 , B01D61/025 , B01D61/04 , B01D61/06 , B01D61/08 , B01D61/10 , B01D65/02 , B01D2311/04 , B01D2321/04 , B01D2321/16 , C02F1/441 , B01D2311/103 , B01D2311/14 , B01D2311/16
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39.发明授权MEMBRANE BIOREACTOR SYSTEM FOR TREATING SYNTHETIC METAL-WORKING FLUIDS AND OIL-BASED PRODUCTS 失效MBR系统合成金属加工液和油基产品的治疗
公开(公告)号：EP0560980B1
公开(公告)日：1997-12-17
申请号：EP93906356.6
申请日：1992-10-09
IPC分类号： C02F1/44
CPC分类号： C02F3/1268 , B01D17/00 , B01D17/0208 , B01D17/0214 , B01D17/047 , B01D17/085 , B01D21/00 , B01D21/2433 , B01D21/2444 , B01D21/305 , C02F1/444 , C02F3/1231 , C10M175/06 , Y02W10/15
摘要： A system is provided to treat wastewater from a metal-working facility, such as an automotive manufacturing plant in a bioreactor using live microorganisms. Such wastewater contains waste fluids which are a mixture of relatively easily biodegradable fats and oils, much less easily biodegradable synthetic fluids, oils and greases, and nonbiodegradable material including inorganic finely divided solids such as metal and silicon carbide particles. Such waste fluids require a hydraulic retention time (HRT) and a solids retention time (SRT) which is 10 times greater than for sewage. High quality water is separated from suspended solids which are removed from the reactor at an essentially constant rate and fed to an ultrafiltration membrane. Concentrate is recycled to the reactor, except for a bleed stream to remove solids periodically. The membranes acquire a long and effective life despite large variations in membrane flux, because of a permeate recycle which permits operation of the bioreactor at constant volume; permits flow of feed wastewater to the reactor at constant flow rate; and allows operation of the membrane modules at a relatively low pressure in a narrow range which does not damage the membranes. Such operation of the bioreactor allows one to use a reactor which is one-half the size (volume) than one which would be required with a system without a permeate recycle. Effective and long-lived operation of the membranes is obtained by filtering out (through a 140 mesh screen) all solids greater in diameter than about 106 mu m. Pilot plant tests conducted with wastewater from automobile manufacturing plants over a period of more than a year provide evidence of the surprising effectiveness of the system over a prolonged period.
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公开(公告)号：EP0754165A1
公开(公告)日：1997-01-22
申请号：EP95913838.0
申请日：1995-04-05
发明人： AL-SAMADI, Riad , BENEDEK, Andrew
CPC分类号： C02F1/441 , B01D61/025 , B01D61/04 , B01D61/147 , B01D61/58 , B01D2311/04 , C02F1/444 , C02F1/66 , C02F5/08 , B01D2311/12 , B01D2311/18
摘要： Disclosed is an improved method for extending the useful life of a reverse osmosis membrane having a high pressure side (20) and a low pressure side (22), the membrane used for separating soluble and sparingly soluble inorganic materials from an aqueous solution, the process comprising introducing an aqueous solution containing the soluble and sparingly soluble inorganic materials to the high pressure side (20) of a reverse osmosis membrane and pressurizing the aqueous solution on said high pressure side (20) to produce liquid on the low pressure side (22) substantially free of said inorganic materials. Solution containing concentrated inorganic materials is transferred from the high pressure side (20) of the reverse osmosis membrane to a high pressure side (28) of a microfiltration membrane, and soluble inorganic materials transferred to the high pressure side (28) of the microfiltration membrane having been precipitated to provide solution containing particles of the inorganic materials.
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