A computer model of struvite solution chemistry.

A computer model is developed to describe struvite solution chemistry; this includes the electroneutrality equation and allows greater variability in the input components. Relationships between the major ions are retained without approximation. The model results fit data derived both in our laboratory and from the literature. Equilibrium constants which markedly affect the output are identified and solubility constants are derived. Applications of the model include studies of waste-water treatment and of the formation of kidney stones.