Properties of catalyst for iron and manganese oxidation in filter materialsJoanna Jeż-Walkowiak, Malgorzata Komorowska-Kaufman, Zbysław Dymaczewski, Marek M. Sozański and Przemysław ZakrzewskiE3S Web Conf., 59 (2018) 00014DOI: https://doi.org/10.1051/e3sconf/20185900014