Abstract: A membrane module (3) comprising a plurality of porous hollow membranes (8). The membranes (8) extend between and are fixed at each end in a header (5, 6). One header (6) has one or more of openings (12) formed therein. The openings (12) are in fluid communication with a source of gas and/or liquid (13, 14, 15). The other of the headers (5) is sealingly connected to and in fluid communication with a head-piece (9). The head-piece (9) is adapted to couple to an associated head-piece of a further module to form a rack of modules (17). A potting head (6) for use in mounting porous hollow membranes (8) is also disclosed comprising a preformed potting element (29). The potting element (29) includes one or more cavities (30) for receiving curate potting material which, in use, supports said membranes (8).

Abstract: A membrane module (3) comprising a plurality of porous hollow membranes (8). The membranes (8) extend between and are fixed at each end in a header (5, 6). One header (6) has one or more of openings (12) formed therein. The openings (12) are in fluid communication with a source of gas and/or liquid (13, 14, 15). The other of the headers (5) is sealingly connected to and in fluid communication with a head-piece (9). The head-piece (9) is adapted to couple to an associated head-piece of a further module to form a rack of modules (17). A potting head (6) for use in mounting porous hollow membranes (8) is also disclosed comprising a preformed potting element (29). The potting element (29) includes one or more cavities (30) for receiving curate potting material which, in use, supports said membranes (8).

Abstract: A modular membrane filtration system (5) includes a number of banks (6) of membrane modules (7). Each module (7) includes upper and lower modular manifolds (8) and (9), respectively which are connected to one another to form upper and lower common manifolds (10) and (11) for each bank (6). The upper and lower manifolds (8) and (9) are used for delivery of feed and removal of filtrate and waste liquid from the modules (7). A gas feed manifold (12) runs along the top of the module banks (6) and feeds gas to lower gas manifold (13) through drop lines (14). A further manifold (15) runs in parallel with the common upper and lower manifolds (10) and (11) and is connected thereto at connections points (16) between the manifold banks (6).