@article{10272/24836,
year = {2012},
url = {https://hdl.handle.net/10272/24836},
abstract = {Complete metal removal from highly-polluted acid mine drainage was attained by the use of a pilot multi-step passive remediation system. The remediation strategy employed can conceptually be subdivided into a first section where the complete trivalent metals removal was achieved by the employment of a previously tested limestone-based passive remediation technology followed by the use of a novel reactive substrate (caustic magnesia powder dispersed in a wood shavings matrix) obtaining a total divalent metals precipitation. This MgO-step was capable to abate high concentrations of Zn together with Mn, Cd, Co and Ni below the recommended limits for drinking waters. A reactive transport model anticipates that 1 m3 of MgO-DAS (1 m thick x 1 m2 section) would be able to treat a flow of 0.5 L/min of a highly acidic water (total acidity of 788 mg/L CaCO3) during more than 3 years.},
organization = {This research was financed by the Spanish Ministry of Education and Science through project CGL2010-21956-C02. F. Macías was financially supported by the Spanish Government with a FPI PhD fellowship. The assistance of Cristóbal Cantero for EPMA analysis at the Central Research Services of the University of Huelva is gratefully acknowledged. R. Pérez-López also thanks the Spanish Minister of Science and Innovation and the ‘Ramón y Cajal’ Subprogramme (MICINN-RYC 2011). Manuel A. Caraballo was financially supported by the Spanish Ministry of Education and the Post-doctoral International Mobility Subprogramme I+D+i 2008–2011. The comments and helpful criticisms of an anonymous reviewer and the support of the Editors, Dr. Damià Barceló and Dr. Filip M.G. Tack, have considerably improved the original manuscript and are also gratefully acknowledged.},
publisher = {Elsevier},
title = {From highly polluted Zn-rich acid mine drainage to non-metallic waters: implementation of a multi-step alkaline passive treatment system to remediate metal pollution},
doi = {doi.org/10.1016/j.scitotenv.2012.06.084},
author = {Rötting, Tobias and Ayora, Carlos and Macías Suárez, Francisco and Caraballo Monge, Manuel Antonio and Nieto Liñán, José Miguel and Pérez López, Rafael},
}