SEPARATION MEMBRANE ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a permeation side flow passage material for a separation membrane element by which stable filtration flow rate and salt rejection can be always obtained, and a separation membrane element.SOLUTION: A permeation side flow passage material for a separation membrane element of which a part adhered to a separation membrane has a fluid permeability higher than that of other parts of the permeation side flow passage material.SELECTED DRAWING: Figure 2