SEPARATION MEMBRANE ELEMENT AND SEPARATION APPARATUS USING THE SAME

摘要

PROBLEM TO BE SOLVED: To efficiently wash the solid-liquid separation membranes of a separation membrane element. SOLUTION: Solid-liquid separation membranes 3 mutually separated in opposed relationship are used to form a flat membrane type separation membrane element 1a and a transmitted liquid flow channel 5a for taking out the transmitted liquid transmitted through the solid-liquid separation membranes 3 and a washing soln. flow channel 7a for washing the solid-liquid separation membranes are mutually independently formed in the element la. A transmitted liquid port for taking out the transmitted liquid transmitted through the solid- liquid separation membranes and a washing soln. port for introducing a washing soln. into the gap between the solid-liquid separation membranes may be formed. The transmitted liquid port can be formed to a region not opposed to the introducing direction of the washing soln. from the washing soln. port of the element.