Hollow fiber membrane, hollow fiber membrane module, and water purifier

摘要

A hollow fiber membrane, wherein an inner diameter (Id) is within the range of 100 to 200 mum, the ratio (Mt/Id) of a wall thickness (Mt) to the inner diameter (Id) is the range of 0.9 to 1.1, a bubble point (Bp) is at least 0.5 MPa, and the ratio (Di/Do) of the maximum major axis (Di) of the pores existing in the layer of up to 10 mum thick from an inner surface to the maximum major axis (Do) of the pores existing in the layer of up to 10 mum thick from an outer surface is within the range of 10.0 to 15.0; a hollow fiber membrane module formed of the hollow fiber membranes; and a water purifier formed of the hollow fiber membrane module.