Numerical Simulation of Multistage Flotation Process for Wastewater Cleanup

Vol.8 No.1

Year: 2012

Issue: August-October

Title: Numerical Simulation of Multistage Flotation Process for Wastewater Cleanup   

Author Name: Yasser Rihan   

Synopsis:   

In order to effectively remove mixed types of pollutants, including fine solids, emulsified oil and dissolved chemicals, a multi-stage loop-flow flotation column (MSTLFLO) has been developed. In this study, a numerical model was used to simulate wastewater system containing emulsified mineral oil and suspended particles (powdered activated carbon or glass beads) using the MSTLFLO flotation column. Results show that the separation efficiencies of emulsified oil and fine particles are greater than 90%. A process simulation program based on the classic tank-in-series model has been established. Experimental results for the removal of both individual and mixed components in MSTLFLO process for different authors are shown to be in excellent agreement with values predicted by the numerical simulation. The findings of this study are intended to provide an engineering design basis in exploring future applications of the MSTLFLO flotation process for industrial wastewater treatment.