Water Conditioning & Purification Magazine

Crossflow

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Flow of solution parallel to the surface of the membrane. This contrasts with dead-end flow, in which the liquid flows perpendicular to the surface of the filter. In crossflow, only a fraction of the crossflow solution passes through the membrane. Reverse osmosis is an example of crossflow filtration: separation of the components of water is accomplished by a semi-permeable membrane through the application of press and parallel flow, which also minimizes particle build-up. Ultrafiltration, nanofiltration and microfiltration are crossflow filtration processes.

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