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    HOLLOW FIBER SEMIPERMEABLE MEMBRANE OF TUBULAR BRAID AND METHOD FOR PRODUCING IT
    73.
    发明授权
    HOLLOW FIBER SEMIPERMEABLE MEMBRANE OF TUBULAR BRAID AND METHOD FOR PRODUCING IT 失效
    中空纤维半透膜管状编织物及其制备方法

    公开(公告)号：EP0735917B1

    公开(公告)日：2000-09-20

    申请号：EP95903729.2

    申请日：1994-12-19

    申请人： ZENON ENVIRONMENTAL INC.

    发明人： MAHENDRAN, Mailvaganam ,  FABBRICINO, Luigi ,  RODRIGUES, Carlos, Fernando, F. ,  DONNELLY, Allen, R.

    IPC分类号： B01D69/08 ,  B01D67/00 ,  B01D61/00 ,  B01D71/06 ,  D01D5/24

    CPC分类号： D01D5/24 ,  B01D69/08 ,  B01D69/10

    摘要： A hollow fiber membrane ("fiber") comprises a tubular macroporous support (31) coated on its outer surface with a thin tubular asymmetric semipermeable film (33) of polymer. The film, by itself, is non-self-supporting. The support (31) itself is so flexible (flaccid) that it does not have a circular cross section and collapses with finger pressure. Such a tube of knitted or woven braid no greater than 2.5 mm o.d., having interstitial voids which are non-uniformly shaped by the "ends" which are braided, is coated with a "dope" of polymer, then coagulated in a bath to form the film. Yet, after coating, the braided membrane can withstand up to 1500 psig in hydraulic compression forces before a straight-line relationship between flux and pressure begins to flatten out. The voids are relatively much larger than pores in the film. These voids are small enough to inhibit substantial penetration of the dope which lies superficially supported on the upper portion of the braid. Viewed in an elevational cross-sectional view looking down the longitudinal axis of the dope-coated braid, the dope extends over less than 33 % of the outer portion of the braid's cross-sectional area. This thin coating of dope is made possible by a unique coating nozzle having sequential rounding and sizing orifices through which the braid is advanced by pulling it without unduly distorting the shapes of the voids in the braid. The shapes and sizes of the braid are thus retained except that the braid is distended into an essentially circular shape because of the tensile forces exerted by the coagulating dope. Hollow fiber membranes made as disclosed herein are used to make fluid-fluid separations, the braid and film being tailored to the purpose at hand.

    Process for treating recalcitrant compounds
    78.
    发明公开
    Process for treating recalcitrant compounds 失效
    斯德芬（Verfahren zur Behandlung von duren Stoffen）

    公开(公告)号：EP0735005A2

    公开(公告)日：1996-10-02

    申请号：EP96810189.9

    申请日：1996-03-26

    申请人： ZENON ENVIRONMENTAL INC.

    发明人： Tonelli, Fernando A. ,  Behmann, Henry

    IPC分类号： C02F3/12

    CPC分类号： B01D61/145 ,  B01D17/00 ,  B01D17/0208 ,  B01D17/0214 ,  B01D17/047 ,  B01D17/085 ,  B01D17/12 ,  B01D21/00 ,  B01D21/2433 ,  B01D21/2444 ,  B01D21/34 ,  B01D61/147 ,  C02F1/444 ,  C02F3/1231 ,  C02F3/1268 ,  C10M175/06 ,  Y02W10/15 ,  Y10S210/908

    摘要： A wastewater feed containing an ultimate BOD/COD ratio > 0.6 is well-suited for especially acclimated thermophilic and/or caldo-active living micro-organisms ("hot cells") which thrive in an autothermal aerobic (ATA) reaction zone having an ATA bioreactor ("ATAB") operating at substantially ambient atmospheric pressure in combination with a MF or UF membrane filtration device from which a solids-free permeate may be withdrawn. This combination, of ATAB and membrane device is a "membrane bioreactor" (ATA MBR), which operates autothermally with a feed containing biodegradable organic materials having a BOD of at least 5,000 mg/L, preferably at least 10,000 mg/L (10 g/L) with a minor portion of "municipal" wastewater or domestic sewage. Operation of the ATAB, preferably in the thermophilic range from 45°C - 75°C, with constant HRT from 1 to 12 days, is contingent upon maintaining a stable population of live hot cells. Such cells enhance the biokinetics of degradation and allow operation of the ATAB at higher COD loading and a lower concentration of TSS, than would be possible at a lower temperature. A surprisingly high membrane productivity allows production of much less sludge to be disposed of outside the system, than would have to be disposed of with a conventional mesophilic reactor in normal operation with a HRT of less than 24 hr. A combination of an MP MBR with an ATA MBR is highly effective when the MPB produces high BOD concentration mixed liquor for destruction by the ATAB.

    摘要翻译： 含有最终BOD / COD比> 0.6的废水进料非常适合于在具有ATA的自热需氧（ATA）反应区中茁壮成长的特别适应的嗜热和/或加热活性活的微生物（“热细胞”） 生物反应器（“ATAB”）在基本上环境大气压下操作，与MF或UF膜过滤装置组合，可以从其中取出不含固体的渗透物。 ATAB和膜装置的这种组合是“膜生物反应器”（ATA MBR），其使用含有至少5,000mg / L，优选至少10,000mg / L（优选至少10,000mg / L）的BOD的可生物降解的有机材料的饲料自动操作 / L），少部分“市政”废水或生活污水。 ATAB的操作，优选在45℃-75℃的嗜温范围内，恒定的HRT为1至12天，取决于保持稳定的活热细胞群。 这样的细胞增强降解的生物动力学，并允许ATAB在较低的温度下可能在较高的COD负载和较低的TSS浓度下操作。 令人惊讶的是，膜生产率允许在系统外部处理少得多的污泥，而不需要在正常操作下用HRT小于24小时的常规嗜温反应器处理。 MPB与ATA MBR的组合在MPB生产高BOD浓度混合液体以供ATAB破坏时非常有效。

    Cartridge of hollow fiber membrane wafers and module containing stacked cartridges
    80.
    发明公开
    Cartridge of hollow fiber membrane wafers and module containing stacked cartridges 失效
    Einsatz mit Hohlfasermembran-Scheiben und gestapelteEinsätzeenthaltende Modul。

    公开(公告)号：EP0560720A2

    公开(公告)日：1993-09-15

    申请号：EP93810156.5

    申请日：1993-03-03

    申请人： ZENON ENVIRONMENTAL INC.

    发明人： Pedersen, Steven Kristian ,  Lipski, Christopher John ,  Cote, Pierre Lucian

    IPC分类号： B01D63/04 ,  B01D63/02

    CPC分类号： B01D63/026 ,  B01D63/021 ,  B01D63/04 ,  B01D63/043 ,  B01D63/06 ,  B01D2313/06 ,  B01D2313/44

    摘要： A tubular module is disclosed for use as a membrane device, comprising, a shell with fluid couplings removably affixed to each of its ends and at least one non-disassemblable cartridge operably held within the shell. The cartridge is constructed from plural wafers sequentially coaxially aligned, each wafer consisting essentially of a generally planar frame and an array of hollow fibers of selectively permeable material adhesively held by their ends in opposed portions of the border of the frame, without potting the ends. Several cartridges may be coaxially "ganged" to provide a "stack" with the required filtration area. The cartridges may be removably disposed in the shell, or secured therein so that the entire module may be discarded when its efficiency is unacceptably low. The wafers are adhesively secured to define a fluid-tight conduit with open ends through which a feedstream is flowed transversely over the fibers. The bores of the fibers are in open fluid communication with the permeate zone in the shell. A frame of a wafer may be provided with longitudinal, laterally spaced apart grooves in its upper surface and the fibers trained in the grooves. A cartridge may be made by precoating a first frame with adhesive, embedding the fibers in the adhesive, initially curing the adhesive and then placing a second frame over the partially cured adhesive ; and, repeating the steps. Alternatively, the second frame may be positioned over the embedded fibers on the first frame and the adhesive then cured. The arrays lie in a plane substantially orthogonal to the direction of flow of a feedstream to be treated, and fibers of one array are staggered relative to those in a successive array.

    摘要翻译： 公开了用作膜装置的管状模块，包括：具有可移除地固定到其每个端部的流体联接器的壳体和可操作地保持在壳体内的至少一个不可拆卸的盒。 盒由多个晶片顺序同轴对准构成，每个晶片基本上由基本上由平面框架组成的中空纤维阵列和选择性渗透材料的阵列组成，它们的端部由框架的边框的相对部分粘合地保持，而不会封装端部。 可以将多个墨盒同轴地“联合”以提供具有所需过滤面积的“堆叠”。 盒可以可拆卸地设置在外壳中，或固定在其中，使得当其效率不可接受地低时，可以丢弃整个模块。 晶片被粘合地固定以限定具有开口端的流体密封导管，通过该端部，进料流横向地流过纤维。 纤维的孔与壳体中的渗透区开放地流体连通。 晶片的框架可以在其上表面上设置有纵向，横向间隔开的凹槽，并且纤维被训练在凹槽中。 盒可以通过用粘合剂预涂第一框架，将纤维嵌入粘合剂中，最初固化粘合剂，然后将第二框架放置在部分固化的粘合剂上; 并重复步骤。 或者，第二框架可以位于第一框架上的嵌入的纤维上，然后粘合剂固化。 阵列位于基本上正交于待处理进料流的流动方向的平面中，并且一个阵列的纤维相对于连续阵列的纤维交错。