A dilute aqueous solution of isopropanol is concentrated by reverse osmosis across a membrane of polyethyleneimine which has been cross-linked with 2,4-toluene diisocyanate.Mordechai PasternakUSUS4865745 * 1988年5月2日 1989年9月12日 Texaco Inc. Method of treating dilute aqueous solutions...
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...
in the direction that tends to equalize the solute concentrations on the two sides.[1][2][3]It may also be used to describe a physical process in which any solvent moves across a semipermeable membrane (permeable to the solvent, but not the solute)...
Osmosis is defined as the movement of solvent molecules, such as water, across a selectively permeable membrane from a region of lower solute concentration to a region of higher solute concentration, in order to equalize the solute concentrations on both sides of the membrane. ...
Across a semi-permeable membrane, the osmotic flux is determined by the osmotic strength (or pressure) and the permeability of solvents across the membrane. The process of water permeation depends on pore structures in the membrane, as well as the interaction between water molecules and the pore...
Reverse osmosis involves the reversal of the osmotic pressure of a solution across a membrane having very small pores, to drive water away from dissolved molecules. From: Fungi Bio-Prospects in Sustainable Agriculture, Environment and Nano-technology, 2021 ...
Water flows by osmosis across the membrane into a sealed chamber where it creates pressure. This pressure is transmitted by a water-immiscible liquid piston to a second chamber where it effects reverse osmosis. Water-removal rates are calculated....
The three parameter model of Kedem and Katchalsky [1] for describing the mass transport across a membrane is used for developing the design equations for reverse osmosis (RO) systems. It is shown that by using a simplifying assumption of replacing the local solute permeate concentrations by the...
Synovial joints have ajoint capsulewhich has anouterfibrous capsule, and aninner synovial membranefilled withsynovial fluid. / 滑膜关节具有关节囊,关节囊由外层的纤维膜和内层的滑膜构成,内部充盈着滑液。 Synovial fluidis a viscous fluid that looks like the white of an egg, and it helps lubricate th...
This study investigated pressure-assisted osmosis (PAFO), which uses the external pressure together with osmotic gradient across a membrane, to improve flux through forward osmosis (FO) membranes. Experiments were performed in a laboratory-scale PAFO system, which allows the application of external ...