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1989    Ph.D.     Environmental Technology - Wageningen Agricultural Univ.,

                            The Netherlands 

1983    M.S.       Agronomy - Virginia Polytechnical Institute and State University

1981    B.S.       Agronomy - Virginia Polytechnical Institute and State University

                           (magna cum laude)

Professional Experience: 

2004-Present    Professor

Department of Chemical and Environmental Engineering

The University of Arizona, Tucson, Arizona, USA

2001-2004        Associate Professor 

Department of Chemical and Environmental Engineering

The University of Arizona, Tucson, Arizona, USA

1991-2000        Assistant Professor

Division of Industrial Microbiology (50%) and Department of Environmental Technology (50%)

Wageningen University, The Netherlands

Extramural Professional Service: 

Editoral Board Biodegradation (International Peer Reviewed Journal) (2003-Present)

Editor special issue of Water Science and Technology, Volume 44, Issue 8, "Anaerobic Digestion for Sustainable Development" (2001) 

Honors and Awards: 

• Co-Recipient of the 2001 Lettinga Award 
• Fellow of the Dutch Royal Academy of Sciences (1991-1996) (Konelijke Nederlandse Akademie van Wetenschappen)

Publications: 

Please see publications page.