公开(公告)号：US20060261007A1

公开(公告)日：2006-11-23

申请号：US10572893

申请日：2004-09-15

Applicant: Fufang Zha ,  Huw Lazaredes ,  Zhiyi Cao

Inventor： Fufang Zha ,  Huw Lazaredes ,  Zhiyi Cao

IPC: B01D65/02

CPC classification number: B01D65/02 ,  B01D63/02 ,  B01D63/04 ,  B01D2313/105 ,  B01D2313/125 ,  B01D2313/24 ,  B01D2315/06 ,  B01D2321/04 ,  B01D2321/185

Abstract: A method and apparatus for backwashing a membrane filtration system wherein permeate remaining present in the filtration system wherein permeate remaining present in the filtration system when the filtration process is stopped or suspended is used to provide liquid for backwashing the membrane pores during a backwashing process.

Abstract translation: 一种用于反冲洗膜过滤系统的方法和装置，其中在过滤系统中保留的渗透物，其中当过滤过程停止或悬浮时，过滤系统中剩余的渗透物被用于提供用于在反冲洗过程中反洗膜孔的液体。

公开(公告)号：US20050139538A1

公开(公告)日：2005-06-30

申请号：US11060106

申请日：2005-02-16

Applicant: Huw Lazaredes

Inventor： Huw Lazaredes

IPC: B01D29/11 ,  B01D63/00 ,  B01D63/02 ,  B01D65/02 ,  B01D65/08 ,  B01D35/00

CPC classification number: B01D63/026 ,  B01D29/114 ,  B01D29/62 ,  B01D29/6438 ,  B01D65/02 ,  B01D65/08 ,  B01D2201/087 ,  B01D2313/26 ,  B01D2321/185

Abstract: A method and filtration module (5) for providing gas bubbles within an array of vertically disposed porous hollow membranes (6) to clean the outer surfaces of said membranes (6) when the array is immersed in a liquid by feeding (10) the gas bubbles into the array transversely of the vertical axis of the array. In one preferred form, the gas bubbles are retained within the array using a sleeve (11) surrounding the array (6) at least along part of its length.

Abstract translation: 一种方法和过滤模块（5），用于在垂直设置的多孔中空膜（6）的阵列内提供气泡，以便当阵列通过进料（10）气体浸入液体中时，清洁所述膜（6）的外表面 气泡沿阵列的垂直轴横向排列成阵列。 在一个优选形式中，使用围绕阵列（6）的套筒（11）至少沿其长度的一部分保持气泡在阵列内。

公开(公告)号：US20070007205A1

公开(公告)日：2007-01-11

申请号：US10569565

申请日：2004-08-27

Applicant: Warren Johnson ,  Thomas Beck ,  Fufang Zha ,  Huw Lazaredes ,  Zhiyi Cao

Inventor： Warren Johnson ,  Thomas Beck ,  Fufang Zha ,  Huw Lazaredes ,  Zhiyi Cao

IPC: B01D65/02

CPC classification number: B01D65/08 ,  B01D61/14 ,  B01D63/02 ,  B01D2321/185

Abstract: A method of backwashing a membrane filtration module (4), said module (4) including one or more membranes (5) located in a feed-containing vessel (3), the membranes (5) having a permeable wall which is subjected to a filtration operation wherein feed containing contaminant matter is applied to one side of the membrane wall and filtrate is withdrawn from the other side of the membrane wall, the method including: removing liquid from the feed-containing vessel (3) until the level of liquid in the feed-containing vessel (3) falls to a first level (L2) below an upper level of the membranes; suspending the filtration operation; performing a liquid backwash of the membrane wall until liquid level within the feed-containing vessel (3) rises to a second predetermined level (L1) above said first level; aerating the membrane surface with gas bubbles to dislodge fouling materials therefrom; performing a sweep or drain down of the feed-containing vessel (3) to remove the liquid containing the dislodged contaminant matter; and recommencing the filtration operation.

Abstract translation: 一种反洗膜过滤模块（4）的方法，所述模块（4）包括位于含进料容器（3）中的一个或多个膜（5），所述膜（5）具有可渗透壁，所述膜 过滤操作，其中将含有污染物质的进料施加到膜壁的一侧，并且滤液从膜壁的另一侧排出，该方法包括：从含进料的容器（3）中除去液体，直到液体的液面 含饲料容器（3）在膜的上部水平面下降到第一水平（L 2）; 暂停过滤操作; 执行膜壁的液体反冲洗，直到含饲料容器（3）内的液面上升到高于所述第一水平的第二预定水平（L 1） 用气泡对膜表面进行充气以从其中去除污垢物质; 进行含有进料的容器（3）的扫掠或排出以除去含有移出的污染物质的液体; 并重新进行过滤操作。