Aaron D. Wilson;Frederick F. Stewart;Mark L. Stone
发明人:
Aaron D. Wilson,Frederick F. Stewart,Mark L. Stone
申请号：
US13480053
公开号：
US10363336B2
申请日:
2012.05.24
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A method of treating a liquid. The method comprises providing a feed liquid comprising at least one solvent and at least one solute to a first side of a membrane. A single-phase draw solution comprising at least one of an aminium salt, an amidinium salt, and a guanidinium salt is provided to a second side of the membrane. The at least one solvent is osmosed across the membrane and into the single-phase draw solution to form a diluted single-phase draw solution. At least one of CO2, CS2, and COS is removed from the diluted single-phase draw solution to form a first multiple-phase solution comprising a first liquid phase comprising the at least one solvent, and a second liquid phase comprising at least one of an amine compound, an amidine compound, and a guanidine compound. A liquid purification system is also described.
