Application of CFD modelling to study the hydrodynamics of various anaerobic pond configurations

• DOI: 10.2166/wst.2003.0111
• Publication Date: 2018-05-18T13:50:51Z
• Authors: G.P. Vega; M.R. Peña; C. Ramírez; D.D. Mara
• Keywords: Baffle; Inflow

The simulation of hydrodynamics and transport phenomena in waste stabilization ponds is a developing tool worth studying order to understand their internal processes interactions. Pond design involves several physical, hydrological, geometric dynamic variables so as provide high hydrodynamic efficiency maximum substrate utilization rates. CFD modelling allows the combination these factors predict behaviour having different configurations. two-dimensional depth-integrated model MIKE 21 was used this study simulate advection-dispersion full-scale anaerobic pond (AP) located southwest Colombia. A set 12 configurations including sludge contents, inlet-outlet positioning, baffling geometry were modelled. Results showed that crosswise (diagonally opposite) layout, length-to-breadth ratio 2:1, plus provision two cross baffles at 1/3 L 2/3 most effective measures improve overall AP dispersion patterns.