| Positions | 
 | since 2003 | Full professor in Hydrology, Chair of  Hydrology, University of Bayreuth | 
 | 2001- 2003 | Full professor in Hydrogeology, Aachen  University of Technology | 
 | Summer 1994 | Visiting Scientist at the Colorado School of  Mines, Golden, Co, USA | 
 | 1991 - 2001 | Head of the Limnological Research Station at  the University of Bayreuth | 
 | 1989 - 1990 | Post-doc at the Lake Research Institute of   the Swiss Federal Institute for Environmental Science and Technology  (EAWAG) and ETH-Zürich at Kastanienbaum/Switzerland | 
 | 1985 - 1989 | Graduate student in the Department of  Hydrology at the University of Bayreuth. | 
 | 1977 - 1979 | Civil service at the Evangelisches  Kinderheim Spengelhof, Munich. | 
  | Education | 
 | July 1989 | Graduation (Dr. rer. nat., advisor: Professor  Herrmann), Faculty of Biology, hemistry and Geoscience. Title of   dissertation: Biogeochemical Regulation of the Solubility of Trace  Metals during the anaerobic Digestion of Municipal Solid Waste. | 
 | 1979 - 1985 | Enrolled in in Geoökologie (Environmental  Sciences) at the University of Bayreuth/Germany, Diploma | 
 | 1968 - 1977 | Simon-Marius-Gymnasium Gunzenhausen, Abitur | 
 | 1964 - 1968 | Stephani-Grundschule Gunzenhausen. |