Profession

• 1989  1993: Privatdozent at the University Stuttgart
• 1993 -1997: Professor for Waste Management at the University of Essen
• 1997 - 2011: Professor for Waste Management at the Bauhaus-University Weimar (retired)
• Current: Docent at the University of Padua (Waste Management in Developing Countries)

Awards

• Scientific Award University of Brussels
• "A Life for Waste" Sardinia 2015
• "WasteSafe Lifetime Achievement Award" 2017; Bangladesh

Professional Activities, research, planning and construction

• biological utilization of refuse (technical examination, processing, biological and chemical research)     
• biogas production
• composting
• mechanical recycling technologies
• compost quality and compost use
• Development of Waste Management programs for communities and the industry
• emissions from composting, AD and incineration plants
• biological degradation and compostability of bio degradable plastics (e.g. creation of test methods)     
• emissions from landfill sites
• biological and mechanical pretreatment of waste before landfilling
• long-term emissions from landfilling
• infrastructure planning
• Recycling of bio polymers
• Waste Management in developing countries

Publications

• 12 scientific books
• 87 publications
• 69 Conference papers

Assignments Abroad

• Projects in over 45 countries in Europe, Asia, Africa, South America and the US
• Lesson at 21 Universities out of Germany