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Cross Flow Filtration

A type of filtration that uses the shear force of tangential flow across the membrane surface (during suspension recirculation) to keep the particle buildup to a minimum. Particle boudary layers cannot be completely eliminated by cross flow, however, due to low fluid velocity that exists at the membrane surface. Ultrafiltration and reverse osmosis are examples of cross flow filtration. Cross flow filtration is also called tangential flow filtration. See Also: Back Siphonage Backwash Continous Flow Operation Cross Connection Intermittent Flow Normal Flow Filtration Venturi Conventional Filtration In-line Filtration Direct Filtration Normal Flow Filtration