publication . Article . 2017

Breakthrough" osmosis and unusually high power densities in Pressure-Retarded Osmosis in non-ideally semi-permeable supported membranes.

Andriy Yaroshchuk;
Open Access English
  • Published: 23 Mar 2017 Journal: Scientific Reports, volume 7 (eissn: 2045-2322, Copyright policy)
  • Publisher: Nature Publishing Group
  • Country: Spain
Osmosis is the movement of solvent across a membrane induced by a solute-concentration gradient. It is very important for cell biology. Recently, it has started finding technological applications in the emerging processes of Forward Osmosis and Pressure-Retarded Osmosis. They use ultrathin and dense membranes supported mechanically by much thicker porous layers. Until now, these processes have been modelled by assuming the membrane to be ideally-semipermeable. We show theoretically that allowing for even minor deviations from ideal semipermeability to solvent can give rise to a previously overlooked mode of “breakthrough” osmosis. Here the rate of osmosis is ver...
free text keywords: Article, Osmosis, :Enginyeria química [Àrees temàtiques de la UPC], Materials porosos, Osmosi, Multidisciplinary, Chemical engineering, Pressure-retarded osmosis, Concentration polarization, Forward osmosis, Materials science, Membrane, Porosity, Order of magnitude, Semipermeable membrane
Funded by
EC| RED-Heat-to-Power
Conversion of Low Grade Heat to Power through closed loop Reverse Electro-Dialysis
  • Funder: European Commission (EC)
  • Project Code: 640667
  • Funding stream: H2020 | RIA
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