Improving Design of a Domestic Waste Disposal System Using an Unsaturated Flow Model and Phosphorus Adsorption

摘要

A two-dimensional unsaturated flow model including hysteresis was developed to study movement and distribution of domestic septic tank effluent in a mound system. The objective was to improve design by maximizing phosphorus adsorption. Simulation runs of this study, therefore, focused on the maximization of effluent spreading for given mound dimensions, thereby minimizing saturation beneath the trench.