Advances in Water Treatment and Enviromental Management

172 WATER TREATMENTTABLE 1: Separation Tests ResultsFresh Water, Temp. 25°C, Oil density 840 Kg/m36 CONCLUSIONThe proposed modelling gives a way to predict approximately the collection efficiency ofhydrocyclones treating light dispersions.This model can be used either for the design or for the scaling up of liquid/liquid separators.The validity of the model was demonstrated with a cylindrical hydrocyclone, but if the flowfield is known, the method could be extended to conical hydrocyclones.ACKNOWLEGEMENTSThanks are due to TOTAL and ALSTHOM NEVRTEC for having partially supported this work.REFERENCES1 COLEMAN.D.A—THEW.M.T Correlation of separation results from light dispersionhydrocyclones. Chem. Eng. Res. Des. V.ol.61 19832 WOILLEZ.J—LECOFFRE.Y—SCHUMMER.P A high efficiency 1iquid/1iquid separator.4th Int. Conf. on Multiphase Flows. Nice BHRA 19393 DIETZ.P.W Collection efficiency of cyclone separator. MChe J Vo”27 No 6 19814 CLIFT—GRACE—WEBER Bubbles. Droos and Particles A.P 1978