Operating method for separation device

Abstract

An operating method for a separation device is an operating method for a separation device including a separation membrane, the separation device including: a first flow path to which a mixture containing an adsorptive substance to be adsorbed to the separation membrane is to be supplied; and a second flow path through which a substance that has permeated through the separation membrane is allowed to flow. The operating method for a separation device includes a step of supplying the mixture to the first flow path so that an adsorptive substance concentration distribution in a direction of passage of the mixture becomes larger than 0 and equal to or less than 0.3.

Dependencies are inferred from the claim text.