Patent ID: 7189321

Claim:
A fluid treatment module comprising: at least two hollow membranes, each including two support layers arranged one above the other creating between them a space; and a plurality of capillary tubes arranged between the two support layers and each having an opening at the level of each of the support layers in such a way as to form capillary channels for the flow of a first fluid, wherein at least one membrane has from 10 5 to 5×10 8 capillary tubes per cm 2 in at least one support layer, the space between the capillary tubes and the two support layers forming an internal cavity for circulation of a second fluid around the capillary tubes, the two support layers and the capillary tubes being constituted by an organic polymer, wherein said hollow membranes are arranged within a sealed enclosure in such a way as to provide, between at least one side of said hollow membranes and an adjacent side wall of the enclosure, spaces for the circulation of the first fluid uniquely in communication with the inside of the capillary tubes of the hollow membranes; means for circulating said first fluid in the capillary tubes of the hollow membranes by introducing said first fluid into at least one of said circulation spaces and by collecting said first fluid in another of said circulation spaces; and means for circulating said second fluid in the internal cavity of the hollow membranes.