Filtration

right|thumb|300px|Diagram of simple filtration: oversize particles in the feed cannot pass through the lattice structure of the filter, while fluid and small particles pass through, becoming filtrate.

water treated to remove dissolved solutes or suspended impurities

synthetically created membrane which is usually intended for separation purposes in laboratory or in industry

engineering approaches for the transport of substances between two fractions with the help of permeable membranes; mechanical separation processes for separating gaseous or liquid streams use membrane technology.

wine clarification and stabilisation