Modelling, simulation and validation of continuous sedimentation process

Abstract

One-dimensional model of continuous sedimentation process is presented in this paper. The proposed model is based upon 1-dimensional discretization of sedimentation tank into number of layers along its height. A point source and distributed source models are compared. Investigation of concentration at various layers of the tank is carried out. A preliminary tuning and validation of the proposed model is carried out by considering sedimentation tank that is a part of clari-flocculator process located at real-life waste-water treatment plant of the Central Effluent Treatment Plant (CETP), Ahmedabad. The model presented in this work is proposed to subsequently couple with flocculation model and to develop suitable process control applications like soft sensors to predict the relevant pollutants in the effluent of primary clarifier, automated flocculent dosage.