公开(公告)号：EP0656807A1

公开(公告)日：1995-06-14

申请号：EP93920403.0

申请日：1993-08-27

申请人： CER-WAT, INC.

发明人： LEE, Charles, A.

IPC分类号： B01D69 ,  B29D99 ,  B32B7 ,  B32B37

CPC分类号： B32B27/12 ,  B01D69/10 ,  B01D2201/204 ,  B29D99/005 ,  B29L2031/755 ,  B32B7/14 ,  B32B27/365 ,  B32B37/0076 ,  B32B37/06 ,  B32B2262/0276 ,  B32B2305/026 ,  B32B2305/18 ,  B32B2307/726 ,  B32B2369/00 ,  Y10S264/48 ,  Y10S264/62

摘要： A filtration medium (10) especially useful in cross-flow type filtration systems comprising a length of porous strong substrate (12), preferably woven, and a thin porous membrane (22), such membrane (22) being bonded to the strands of the substrate (12) by islands of resin (18) uniformly spaced apart and disposed generally between the substrate (12) and the membrane (22). The islands of resin (18) enhance the integrity of the composite during its use in a filtration system. A method and apparatus for the manufacture of the filtration medium (10) is disclosed.

公开(公告)号：EP0656804A1

公开(公告)日：1995-06-14

申请号：EP93921238.0

申请日：1993-08-27

申请人： CER-WAT, INC.

发明人： LEE, Charles, A.

IPC分类号： B01D33

CPC分类号： B01D33/04 ,  B01D33/056 ,  B01D33/466 ,  B01D33/646 ,  B01D33/705 ,  B01D33/72 ,  B01D33/804 ,  B01D33/806 ,  B01D33/808 ,  B01D2201/204

摘要： System for separating solids from slurry containing a separable solid in a liquid carrier, such as an industrial waste. The slurry is flowed into a separation chamber positioned over a slower moving foraminous medium to effect cross-flow separation of liquid from the slurry in an initial stage and followed by separation of solids from the slurry in a second stage all the separation being effected employing a single forwardly moving filtration medium. The flow rate of liquid, the rate of travel of the foraminous medium, and the differential pressure across the foraminous medium, as established by the pressure exerted by the flowing liquid on the foraminous medium and the relative pressure underneath the foraminous medium, are controlled at different locations along the length of the separation chamber to provide optimum steady-state separation for a given waste stream.

公开(公告)号：EP0656808A1

公开(公告)日：1995-06-14

申请号：EP93921237.0

申请日：1993-08-27

申请人： CER-WAT, INC.

发明人： LEE, Charles, A.

IPC分类号： B01D69 ,  B01D39

CPC分类号： B01D39/083 ,  B01D39/1661 ,  B01D2201/204 ,  B01D2239/0471 ,  B01D2239/065 ,  B01D2239/0654 ,  B01D2239/086

摘要： A novel filtration medium (10), preferably of the closed loop belt type, comprising a woven substrate (12) which is overlaid by a disparate layer comprising a plurality of individual thermoplastic resin particulates (18) which are controllably spaced apart from one another and bonded at fixed spaced apart locations to one to another and to the strands of the woven substrate (12). These resin particulates (18) serve to define the pore structure and pore size for the medium (10). A method for the manufacture of the filtration medium (10) is disclosed.