Sago industry is one of the major small-scale sectors in India and over 800 units are located in the southern State of Tamilnadu. Processing of sago generates enormous quantities of high strength wastewater requiring systematic treatment prior to disposal. The present study is an attempt to treat as well as to produce biogas from the sago wastewater using Hybrid Upflow Anaerobic Sludge Blanket Reactor (HUASBR) and to establish a computational fluid dynamics (CFD) model on the performance of the Anaerobic Reactor using CFD simulation and to investigate the results accordingly. Computational Fluid Dynamics (CFD) provides a mathematical method for prediction of the effect that wastewater treatment process design features on the hydrodynamics from a fundamental level. Advances in CFD have provided an efficient, economical and time saving tool to investigate the hydrodynamics and reaction conversion occurring in a HUASB reactor. With velocity constant, porosity and the viscosity are modified so that the results obtained are checked and concurred with the experimental value for the prescribed experiment. Simulation result obtained from CFD is found to be in-line with the experimental findings.

Keywords: CFD modelling, HUASB reactor, Biogas production, Sago industry wastewater.