HOLLOW FIBER MEMBRANE FOR IMMERSION FILTRATION, HOLLOW FIBER MEMBRANE MODULE FOR IMMERSION FILTRATION USING IT, IMMERSION FILTRATION DEVICE, AND IMMERSION FILTRATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a hollow fiber membrane for immersion filtration, a hollow fiber membrane module for immersion filtration using it, an immersion filtration device, and an immersion filtration method capable of continuing filtration operation for a long period without deterioration of permeability and deposition of attachments on a membrane surface even in a case that the hollow fiber membrane filtration is continued in a suspension having high concentration.SOLUTION: Provided are a hollow fiber membrane 3 for immersion filtration having one or more projections on its outer surface, and a hollow fiber membrane module 19 for immersion filtration made by bonding and fixing the plural hollow fiber membranes 3 for immersion filtration to a housing 1.