The experiments lasted up to three hours, and sampling was performed continuously according to the method described pre- viously. Solids, which precipitated after sampling within the liquid phase, were dissolved by adding small amounts of hydrochloric acid. The sample's solid phase was washed with ethanol and dried at ambient temperature. The evolution of Mg2 þ , NH4þ and PO34 concentrations were followed by analyzing the liquid phase via ion chromatography. Crystal size distributions over time were deter- mined via morphogranulometric analysis (Morphologi G3S, Mal- vern) for every sample. Fourier infrared spectroscopy (Vertex, Bruker) and ion chromatography analysis of previous dissolved solid fractions examined the final composition of the products. EDX and SEM were used to observe the surface properties of the precipitate.
The supersaturation of struvite can be described by the satura- tion index (SI) shown in the following equation.
The experiments lasted up to three hours, and sampling was performed continuously according to the method described pre- viously. Solids, which precipitated after sampling within the liquid phase, were dissolved by adding small amounts of hydrochloric acid. The sample's solid phase was washed with ethanol and dried at ambient temperature. The evolution of Mg2 þ , NH4þ and PO34 concentrations were followed by analyzing the liquid phase via ion chromatography. Crystal size distributions over time were deter- mined via morphogranulometric analysis (Morphologi G3S, Mal- vern) for every sample. Fourier infrared spectroscopy (Vertex, Bruker) and ion chromatography analysis of previous dissolved solid fractions examined the final composition of the products. EDX and SEM were used to observe the surface properties of the precipitate.The supersaturation of struvite can be described by the satura- tion index (SI) shown in the following equation.
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