Chair of Waste Processing Technology and Waste Management // Montanuniversitaet Leoben

Working group "Mineral Waste, Landfill and Contaminated Sites"

Increasing shortage of primary resources requires a change of the waste economy towards a resource economy so that waste gains more and more importance as a secondary resource. On the other hand, this circular economy holds the danger of dissipation of contaminants. Consequently, the aim of the working group is to foster material and energy recycling of wastes avoiding harmful impact on the environment.

The focuses of the working group are characterization of currently produced mineral residues (e.g. residues of waste incineration and waste water treatment, metallurgical slags (Figure Cr-distribution)) with respect to a use as resources (e.g. construction materials or metals).

Cr-distribution in a steel slag

On the other hand already deposited waste (e.g. household and industrial waste) are investigated with respect to energy and material recycling („Landfill Mining“ (LFM) (Figure Hand sorting)). In this context besides scientific and technical also economical and legal aspects are investigated.

Hand sorting within Landfill Mining

Finally, the working group develops innovative remediation concepts (Figure Soil column) for cases where contaminated sites were generated because of incorrect waste disposal or contaminant release by other causes.

Soil column experiements regarding chromate reduction


Research projects

The following research projects are/were settled in this working group:


Working Group Members

Img 9841b Ass.Prof. Daniel Höllen (WG-leader)
Resource potential and enviromental impact of mineral residues

Kueppers 2 Bastian Küppers, MSc.
Landfill mining and sensory-supported sorting

Neuhold 1 Dipl.-Ing. Simone Neuhold

Sattler Theresa Sattler, MSc.
Geotechnics and mineralogy

Img 9952b Philipp Sedlazeck, MSc.
Side remediation and wastewater treatment


With the following form you can directly contact the working group leader Mr Ass.Prof. Daniel Höllen.

Daniel Höllen

Daniel Höllen

Ass.Prof. Dipl.-Min. Dr.rer.nat.
Scientific staff

Phone: +43 3842 / 402-5110
Cell: +43 676 / 84 53 86-810
Fax: +43 3842 / 402-5102
E-mail: daniel.hoellen@unileoben.ac.at


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