Computational Fluid Dynamics Simulation of Ammonia Removal from Wastewaters by Membrane

Abstract

Ammonia removal from wastewaters was studied theoretically by means of hollow-fiber membrane contactors. An unsteady state and 2D mathematical model was developed to study ammonia removal in hollow-fiber membrane contactors. The model predicts the unsteady state concentrations of ammonia in the contactor and feed tank. Two sets of equations were solved for membrane contactor and feed tank using computational fluid dynamics techniques. Modeling predictions were then validated with the experimental data obtained from literature and were found to be in good agreement. Simulations showed that the developed model can be used to evaluate the parameters that affect ammonia removal in the contactor and feed tank.