Publication

Reverse osmosis and ultrafiltration of sweet whey

Urs von Stockar
1987
Journal Articles

Abstract

Methodol. equipment design, and cost ests. are given for the ultrafiltration and reverse osmosis of sweet whey. Calcns. showed that optimum results are obtained when the whey is concd. to 18% solids at the site of whey prodn., and then shipping the conc. to a central location for protein recovery. [on SciFinder (R)]

Official source

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Urs von Stockar
1987
Journal Articles

Abstract

Official source

Related concepts (8)

Reverse osmosis

Reverse osmosis (RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even distributions. RO can remove dissolved or suspended chemical species as well as biological substances (principally bacteria), and is used in industrial processes and the production of potable water. RO retains the solute on the pressurized side of the membrane and the purified solvent passes to the other side.

Reverse osmosis plant

A reverse osmosis plant is a manufacturing plant where the process of reverse osmosis takes place. Reverse osmosis is a common process to purify or desalinate contaminated water by forcing water through a membrane. Water produced by reverse osmosis may be used for a variety of purposes, including desalination, wastewater treatment, concentration of contaminants, and the reclamation of dissolved minerals. An average modern reverse osmosis plant needs six kilowatt-hours of electricity to desalinate one cubic metre of water.

Osmosis

Osmosis (ɒzˈmoʊsɪs, ɒs-) is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential (region of lower solute concentration) to a region of low water potential (region of higher solute concentration), in the direction that tends to equalize the solute concentrations on the two sides. It may also be used to describe a physical process in which any solvent moves across a selectively permeable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations.