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A model of rapid backpulsing for fouling control in cross-flow microfiltration is developed for solid–liquid separations where only a portion of the foulant is reversibly deposited on the membrane. It predicts the duration of each backpulse and time between backpulses which maximize the net flux. The foulant removed during each backpulse of liquid flow in the reverse direction through the membrane...
Rapid backpulsing to reduce membrane fouling during crossflow microfiltration and ultrafiltration is studied by solving the convection-diffusion equation for concentration polarization and depolarization during cyclic operation with transmembrane pressure reversal. For a fixed duration of reverse filtration, there is a critical duration of forward filtration which must not be exceeded if the formation...
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