The goal of this project was to develop a system that identified magnesium demand for struvite formation by
monitoring conductivity changes during continuous injection of magnesium chloride in several swine manure slurries. Theoretical predictions and pure solution tests provided information capable of determining the magnesium demand for struvite precipitations. However, after testing six different manures in triplicate, the conductivity responses did not follow theoretical predictions and failed to provide any indication of optimum magnesium injection rates for phosphorus removal.

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