The pH-dependent long-term stability of an amorphous manganese oxide in smelter-polluted soils: implication for chemical stabilization of metals and metalloids.

@article{Ettler2015ThePL,
  title={The pH-dependent long-term stability of an amorphous manganese oxide in smelter-polluted soils: implication for chemical stabilization of metals and metalloids.},
  author={Vojtěch Ettler and Zdeňka Tom{\'a}{\vs}ov{\'a} and Michael Kom{\'a}rek and M. Žulj Mihaljevi{\'c} and O Ondrej Sebek and Zuzana Mich{\'a}lkov{\'a}},
  journal={Journal of hazardous materials},
  year={2015},
  volume={286},
  pages={386-94}
}
An amorphous manganese oxide (AMO) and a Pb smelter-polluted agricultural soil amended with the AMO and incubated for 2 and 6 months were subjected to a pH-static leaching procedure (pH 3-8) to verify the chemical stabilization effect on metals and metalloids. The AMO stability in pure water was pH-dependent with the highest Mn release at pH 3 (47% dissolved) and the lowest at pH 8 (0.14% dissolved). Secondary rhodochrosite (MnCO3) was formed at the AMO surfaces at pH>5. The AMO dissolved… CONTINUE READING
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