Waste Water Treatment by Inverse Fluidization Process: an Overview

The present study attempts to summarize the salient characteristics of hydrodynamics behavior of inverse fluidized system, effect of particles properties, various phenomena that affect the fluidization like bubble formation, fluid velocity and its various uses in commercial scale by reviewing the previous literature. Governing mechanisms of inverse fluidization system and some heat and mass correlations are also discussed. Basic ideas on operation and dimensions with the process of different types of IFBR which have been used for treatment of industrial effluents and wastewater from various industries are also discussed. Most of the previous works conducted by different researchers along with their results are presented year wise. Emphasis has been given to the developed correlations, fundamental formula. Future scopes are also presented year wise in this review. Attempt has also been made to study experimentally the hydrodynamic behavior of the IFB in terms of the bed pressure drop by varying different system parameters (viz. air flow rate, water flow rate, and static bed height and orifice diameter on the distributor plate).