Covered Lagoon Research and Development Using A Three Dimensional Computer Simulation

Anaerobic digestion is an attractive but somewhat unstable process for treating municipal and agricultural waste. Research on the biological and chemical aspects of the process is well developed. However, previous computer simulations have all assumed that the reacting medium is uniform throughout; while this may be a reasonable assumption in a laboratory scale experiment, it is less applicable to a production-scale process. Elimination of the uniformity assumption requires a multidimensional simulation of fluid dynamics and species transport. This research incorporates the concepts of computational fluid dynamics into the simulation of anaerobic digestion.