The effect of hydraulic behavior on membrane ultrafiltration in a tubular module inserted concentrically with a steel rod wrapped by rings with various ring densities but uniform ring distance along the flow channel, was investigated. It is concluded that attaching rings with proper ring density on the solid rod inserted concentrically in a tubular membrane may enhance the performance of ultrafiltration due to the creation of turbulent flow, resulting in decrease of concentration polarization while still preserving the effective transmembrane pressure.
Relation:
淡江理工學刊=Tamkang journal of science and engineering 11(2)，頁195-200
