1. Department of Environmental Biotechnology; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
2. Department of Analytical Chemistry; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
3. Department of Environmental Microbiology; Helmholtz Centre for Environmental Research - UFZ; Leipzig Germany
4. Bauer Resources GmbH; Schrobenhausen Germany
5. University of the Witwatersrand; School of Chemical and Metallurgical Engineering; Johannesburg South Africa