Uniform flow field design in porous media filter tower and experimental verification

Abstract Filter tower is usually used in industrial wastewater. However, filtration efficiency will be decreased because of the bias flow in filter tower. This paper is to propose a design method of uniform flow field in porous media filter tower. Firstly, based on the RNG k-e turbulence model, porous media filter tower model is built and the computational fluid dynamics (CFD) is employed to simulate the flow field. The simulation results show that the throttle plate can make the flow field of the filter tower uniform. Secondly, in order to further study the flow field in filter tower, the optimal parameter combination of filter tower is obtained by monofactor analysis and orthogonal analysis. Finally, the optimal design parameters are verified by experiments. The simulation and experimental results show that the uniform flow field design method used in porous media filter tower is feasible.