Spectroscopic and Microscopic Characterization of Volcanic Ash from Puyehue-(Chile) Eruption: Preliminary Approach for the Application in the Arsenic Removal

<table>Arsenic removal by using volcanic pyroclastic mixture (PM), scoria-type (ST) material, and activated pyroclastic mixture (PMA), at different pH.</table>

Journal of Spectroscopy

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Figure 6

Figure 6: Spectroscopic and Microscopic Characterization of Volcanic Ash from Puyehue-(Chile) Eruption: Preliminary Approach for the Application in the Arsenic Removal 

Figure 6 | Spectroscopic and Microscopic Characterization of Volcanic Ash from Puyehue-(Chile) Eruption: Preliminary Approach for the Application in the Arsenic Removal 