Physical-chemical and Biological-chemical Methods for Treatment of Acid Mine Drainage Alena Luptakova*, Stefano Ubaldini, Pietro Fornari, Eva Macingova Department of Mineral Biotechnology, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04353 Kosice, Slovak Republic Institute of Environmental Geology and Geoengineering, CNR, Area della Ricerca di Roma RM 1 – Montelibretti, V...