Welcome to the personal webpage of Dr Mercedes Regadío-García ♀, where you can read about her research and other academic activities.


Mercedes Regadío is a postdoctoral fellow in the Department of Chemistry at KU Leuven (Catholic University of Leuven). Between 2007-13, Mercedes studied the sorption of contaminants in landfill leachates through clayey substrata, in the Department of Geology and Geochemistry of the Autonomous University of Madrid (UAM). She has extensive experience in the characterization of soil and water, the determination of physicochemical processes in pollutants-soil-water interactions and in the description of the fate, transport and biogeochemistry of pollutants.

In 2014, Mercedes joined KU Leuven and she is currently working on the recovery of metals by ion exchange resins and solvent extraction. Her interests range from the attenuation of metals in natural soils to immobilize them, to sorption and separation of metals to concentrate them and recover them with a three-fold objective: the supply of critical metals, the recycling of industrial waste and the remediation of soils.

Present research lines

  1. Recovery and reuse of scandium from bauxite residue (red mud)
  2. Recycling technologies of rare earths elements (critical metals)


  • Waste to resource: recovery and reuse of critical metals from waste
  • Geochemistry
  • Hydrogeological modelling
  • Natural attenuation
  • Sustainable development

Work experience

  • 2014-18        Postdoctoral fellow. KU Leuven a leading, old and renowned European research university and co-founder of the League of European Research Universities (LERU)

Selective recovery of critical metals from industrial process residues and low-grade ores. Extraction of valuable metals via solvoleaching. Recovery of rare earth elements by solvent extraction with ionic liquids.

Research about landfill impacts on soil and water. Groundwater modelling. Results transmission in seminars, conferences and journals. Teaching to undergraduates and academic administration

  • 2008-12       Teaching Assistant. UAM

Geochemistry study of samples from (1) cores below landfills and (2) full-scale long-term diffusion experiments. Analysis, transformations and management of hydrogeological data and information visualization. Results transmission. Teaching to undergraduates

Soil and water analyses (pH, EC, main soluble and exchangeable ions, density, mineralogy, cationic exchange capacity…). Study, description, representation and discussion of the results


  • Mar 2012    PhD in Earth Sciences and the Environment (mention of European Doctor, 15% success rate).

Thesis: Diffusion of Pollutants in Old Landfills Built over Clayey Substrata. Advisor: Dr J Cuevas ♂. Excellent Cum Laude by unanimity. UAM

Dissertation: Long-term Evaluation of the Diffusion of Landfill Leachates through a Compacted Clay Barrier. Advisor: Dr E Montero ♀. Complutense University of Madrid. Overall grade 8.66 (Maximum grade: 10)

  • Sep 2007    Diploma of Advanced Studies (DEA): Proficiency as a researcher.

Dissertation: A GIS on Optimal Location of Terrestrial Aquaculture on the NW Coast of Spain. Advisor: Dr I Claver ♂. Polytechnic University of Madrid. Overall grade 8.67 (Maximum grade: 10)

  • Jun 2005     BS in Environmental Sciences. UAM. Overall grade 7.58 (Maximum grade: 10)