MEMBRANE FILTRATION APPARATUS

摘要

A membrane filter comprises a membrane-walled channel through which a particle-free fluid can pass to leave a particle-rich fluid within the channel. The performance of such a filter is enhanced by pulsatory fluid flow in the channel. A fluidic oscillator is a fluidic device capable of producing pulsatory flow. A membrane filter (7) communicates with at least one of the outlets (3, 4) from a fluidic oscillator (1) such that in operation fluid flowing through the oscillator causes pulsatory flow in the filter.