HOLLOW FIBER MEMBRANE CONTACT APPARATUS AND PROCESS

摘要

Disclosed is a shell side contactor which is highly efficient for forming relatively high concentration of ozonated water comprising a shell containing perfluoroalkoxy resin thermoplastic hollow fibers used as a porous barrier. The perfluoroalkoxy resin comprises a copolymer of tetrafluoroethylene and perfluoroalkyl vinyl ether or a tetrafluoroethyl-co-hexafluoropropylene (FEP) copolymer. The perfluoroalkoxy resin hollow fibers can be unskinned, skinned on their inner surface or skinned on their outer surfaces. The device is provided with spacer means for separating unpotted hollow fibers adjacent an inlet to the shell, thereby permitting liquid flow through the shell at desirably high flow rates with acceptable pressure drop through the shell.