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CROSS FLOW FILTRATION

A process that uses opposite flows across a membrane surface to minimize particle build-up. Cross flow filtration occurs when there is an indirect application of flow across the surface of the membrane. As the membrane surface accumulates the feed flow, filtrate goes through while the solution is absorbed at the opposite end of the membrane. Since cross flow filtration eliminates scaling from the membrane surface, when placed next to dead-end filtration, the permeate flux doesn't fall as quickly. Cross-flow technology gives additional benefits such as improving the longevity of membranes and making them more resistant to fouling.