Two-phase flow simulation of reactor clarifiers

Abstract In this work, hydrodynamic behavior of flow in three different reactor clarifiers was simulated by three-dimensional, multiphase flow model. The primary construction of reactor clarifier was based on the Bansin Water Treatment Plant, Taiwan. This is the traditional construction, and we call it Type A . The other two were designed in such a way as to improve effluent water quality. The traditional clarifier construction was varied in these to make a large well angle ( Type B ) and a gradually larger inlet pipe ( Type C ). Solid effluent flux can be calculated directly from this model. The simulation results showed that under the same daily throughput, the Type C construction of clarifier could decrease upflow fluid velocity in the clarifier and, therefore, reduce effluent water turbidity.