A low-energy forward osmosis process to produce drinking water
Sun, Darren Delai
Date of Issue2011
School of Civil and Environmental Engineering
Forward osmosis (FO) represents a tremendous and untapped opportunity with the potential to solve the global water crisis. The biggest challenge facing the application of FO technology is the economical separation of drinking water from its draw solution. Leveraging advances in nanotechnology, we herein describe a novel draw solute separation system which mimics a natural "destabilization" phenomenon with the help of superparamagnetic nanoparticles, thus separating drinking water from draw solution without any intensive energy, such as, hydraulic pressure or heat. Also this process is not afflicted by the commonly observed problem of salts reverse diffusion. All these characteristics of this novel draw solution separation system make FO to be an eco-sustainable process for the production of drinking water from wastewater without any waste.
DRNTU::Engineering::Environmental engineering::Water treatment
Energy & environmental science
© 2011 Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Energy & Environmental Science, Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1039/c1ee01186c].