Raw Material Liquid Flow Concentration System and Raw Material Liquid Flow Concentration Method

Abstract

Provided is a raw material flow concentration system that causes an induced liquid flow and a raw material liquid flow that includes an organic solvent as a solvent to flow in a counter flow or parallel flow through a forward osmosis membrane, and causes the organic solvent included in the raw material liquid flow to pass through the forward osmosis membrane to move to the induced liquid flow, and thereby obtains a concentrated raw material liquid flow that is a concentrated raw material liquid flow and a diluted induced liquid flow that is a diluted induced liquid flow, said raw material flow concentration system wherein the water content of the forward osmosis membrane is 300 g/m2 or less.

Dependencies are inferred from the claim text.