2022 - Scientific Researcher Mineralogy Group, University of Bern
2019-2022 PhD in Environmental Geochemistry, University of Bern
2018 MSc in Earth Sciences, University of Bern
2015 BSc in Earth Sciences, University of Bern

Research Interest

  • Circular Economy
  • Recycling of secondary (mass) raw materials
  • Alternative raw materials in cement industry
  • Heavy metal recovery from wood- and waste incineration fly ash
  • Mineralogy of waste incineration residues


Fachstelle für Sekundärrohstoffe

Research group Mineralogy

Jump to: 2021 | 2020


Weibel, Gisela; Zappatini, Anna; Wolffers, Mirjam; Ringmann, Stefan (2021). Optimization of Metal Recovery from MSWI Fly Ash by Acid Leaching: Findings from Laboratory- and Industrial-Scale Experiments. Processes, 9(2), p. 352. MDPI 10.3390/pr9020352

Wolffers, Mirjam; Weibel, Gisela; Eggenberger, Urs (2021). Waste Wood Fly Ash Treatment in Switzerland: Effects of Co-Processing with Fly Ash from Municipal Solid Waste on Cr(VI) Reduction and Heavy Metal Recovery. Processes, 9(1), p. 146. MDPI 10.3390/pr9010146


Zucha, Wolfgang; Weibel, Gisela; Wolffers, Mirjam; Eggenberger, Urs (2020). Inventory of MSWI Fly Ash in Switzerland: Heavy Metal Recovery Potential and Their Properties for Acid Leaching. Processes, 8(12), p. 1668. MDPI 10.3390/pr8121668