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1. 发明申请

WO1993022037A1 A SYSTEM AND A PROCESS FOR MEMBRANE FILTRATION OF A DISPERSION 审中-公开
标题翻译：用于膜分散的膜的系统和方法
公开(公告)号：WO1993022037A1
公开(公告)日：1993-11-11
申请号：PCT/DK1993000148
申请日：1993-05-03
申请人： MD FOODS A.M.B.A. , SAUGMANN, Aksel , KRABSEN, Erik , OTTOSEN, Niels, Klausen
发明人： MD FOODS A.M.B.A.
IPC分类号： B01D61/58
CPC分类号： B01D61/58 , A23C9/1422 , A23C2210/206 , B01D61/025 , B01D61/027 , B01D61/142 , B01D61/145 , Y10S426/801
摘要： A dispersion having an aqueous continuous phase is membrane filtrated in one or more membrane filtration steps, where a feeding dispersion fed to a filtration membrane is separated in each step into a retentate retained by the filtration membrane and a permeate passing through said filtration membrane, whereby the retentate from one step can be used, if desired, as a feeding dispersion or a portion thereof in one or more succeeding steps. The permeate resulting from one or more steps is subjected to a concentration to form a concentrated fraction containing an increased concentration of the dry matter or a portion thereof present in the permeate, and this concentrated fraction is returned as a portion of the feeding dispersion in one or more membrane filtration steps. A system for membrane filtration of such dispersion comprises one or more membrane filtration units each associated with a feeding pipe, a retentate exit pipe, and a permeate exit pipe, one or more of the permeate exit pipes (8 , 8 , 8 , ...) being coupled to one or more concentrating units (10 , 10 , 10 , ...) adapted to separate the permeate into a diluted fraction and a concentrate, each concentrating unit being provided with an exit (12 , 12 , 12 , ...) for the diluted fraction and a concentration exit pipe (14 , 14 , 14 , ...) for the concentrate, said concentration exit pipe being coupled to a return pipe (16 , 16 , 16 , ...) opening on to one or more of the feeding pipes (2 , 2 , 2 , ...) of the membrane filtration units.
摘要翻译：具有水相连续相的分散体在一个或多个膜过滤步骤中被膜过滤，其中进料到过滤膜的进料分散体在每个步骤中分离成由过滤膜保留的滞留物和通过所述过滤膜的渗透物，由此如果需要，一个步骤的滞留物可以在一个或多个后续步骤中作为进料分散体或其一部分使用。将由一个或多个步骤产生的渗透物进行浓缩以形成含有浓度增加的干物质或存在于渗透物中的部分的浓缩级分，并将该浓缩级分作为进料分散体的一部分返回到一个或更多的膜过滤步骤。用于这种分散体的膜过滤的系统包括一个或多个膜过滤单元，每个膜过滤单元与进料管，滞留物出口管和渗透物排出管相连，一个或多个渗透物排出管（8 ，8 n 1，...，n + 1，...）被耦合到一个或多个聚焦单元（10 ，10n，10 ，...）渗透物进入稀释馏分和浓缩物，每个浓缩单元设置有用于稀释馏分的出口（12 ，12n，12 ...）和浓缩出口用于浓缩物的管（14 ，14n，14 ，...），所述浓缩出口管连接到回流管（16 ，16 ，...）打开到一个或多个馈送管（2 ，2n，2n + 1，...）过滤单元。

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