Removal efficiency of swirl/vortex separators

Abstract

In this paper an efficiency formula for swirl/vortex separators is proposed. It is based on the combination of scale model tests on a simple vortex separator and literature results from tests on similar devices. The formula predicts the removal efficiency of cylindrical overflow constructions as a function of flow conditions, chamber geometry and particle settling velocity. The formula has furthermore been used to make a comparison with the efficiency of a high-side weir overflow and a storage sedimentation tank.