Performance Evaluation of 1-Cyclohexylpiperidine as a Draw Solute for Forward Osmosis Water Separation and CO₂ Recovery.

ABSTRACT: Membrane-based technologies, such as forward osmosis (FO), offer the advantage of treating water through a spontaneous process that requires minimal energy input while achieving favorable water permeability and selectivity. However, the FO process still has some challenges that need to be solved or improved to become entirely feasible. The main impediment for this technology is the recovery of the draw solute used to generate the osmotic potential in the process. In this paper, we discuss the use of a switchable polarity solvent, 1-cyclohexylpiperidine (CHP), as a draw solute that responds to external stimuli. Specifically, the miscibility of CHP can be switched by the presence of carbon dioxide (CO₂) and is reversible by applying heat. Thus, in this study, the hydrophobic CHP i

SUBMITTER: Cruz-Tato P 

PROVIDER: S-EPMC7558060 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature