SEAWATER DESALINATION PROCESS BASED ON EXTRACTION AND REMOVAL OF SALT IN SEAWATER BY AQUEOUS TWO-PHASE EXTRACTION USING TEMPERATURE RESPONSIVE POLYMER

摘要

PROBLEM TO BE SOLVED: To provide a process allowing desalination of a larger amount of seawater with a more compact device than an RO membrane desalination method.;SOLUTION: The seawater desalination process includes the processes of extracting salt by adding a temperature responsive polymer to seawater and causing the seawater to form two liquid phases, separating water from the aqueous solution containing the polymer by a reverse osmosis membrane method, and thereafter recycling and reusing the polymer. By applying these processes, the desalination process more compact than the current process and having high performance can be provided.;COPYRIGHT: (C)2011,JPO&INPIT