Professor Jacques Wiertz is a Geological Engineer and Doctor in Applied Sciences from the University of Liège, Belgium. He started his career as a researcher in environmental biotechnology in the Chemical Engineering Department at the University of Liège. For 5 years he worked as an expert at the United Nations in Chile on a UNDP project in biohydrometallurgy. Since 1992, Jacques has worked as a professor at the Universidad de Chile in the Chemical and Mining Engineering Department. Currently, he is the coordinator of the Environmental Chair in Mining Department. He worked as a consultant at CONAMA (National Commission for Environment) on formulating environmental regulations and reviewing studies and plans concerning copper smelting decontamination. Jacques Wiertz collaborated as an international expert for the European Union on evaluating an environmental management project in the mining district of Alto Caroni in Venezuela and also on a seminar for the study of contaminated site remediation due to the Aznalcollar tailings dam breaking in Spain. Dr. Wiertz has run a number of professional courses and research, as well as development projects in the area of extractive metallurgy and environmental management on mining projects. He is a technical coordinator for international seminars and conferences at Gecamin. Dr. Jacques Wiertz has been responsible for the technical program as well as the co-editor of the proceedings for the following conferences: Mine Closure 2007 and 2010, Water in Mining 2008, 2010, 2012 and 2014, Paste 2009, Enviromine 2009 and 2011 and Enermin 2010 and 2012, SRmining 2013 y ICARD-IMWA 2015.