Profession
- 1975 to Present: Principal, CalRecovery, Inc.
- 1980 to 1981: Instructor, San Francisco State University
- 1972 to 1977: Research Engineer/Instructor, University of California, Berkeley
Professional Activities
- Planning in waste management in the United States and internationally
- Preparation of solid and hazardous waste management plans and guidelines
- Composting Projects
- Waste Processing Design and Analyses
- Design of entire systems and sub-systems for the separation and recovery of secondary materials and/or fuel from wastes
- Development of various computer models
- Recycling
- Collection and Waste Processing
- International activities in more than 50 countries
- Waste Characterization and Toxicity
- Risk assessment
- Landfilling
- Marketing
- Technical Assistance
- Energy from Biomass
- Health Care Wastes
- Waste-to-Energy
- Wastepaper Processing
- Landfill Mining and Reclamation
- Technology Transfer and Training
- Publications
Service to Editorial Boards
- Editor-in-Chief, Waste Management
- Member, Editorial Board, Resources Conservation & Recycling
- Member, Editorial Board, Compost Science & Utilization
- Member, Editorial Advisory Board, Environmental Business Journal
- Member, Editorial Board, Residuos
- Member, Editorial Board, Waste Management & the Environment
- Member, Editorial Board, BioCycle
- Member, Advisory Board, Nuclear Engineering and Technology, Journal of the Korean Nuclear Society
- Member, Editorial Board, Utilities Policy
- Member, International Advisory Board, Journal of Material Cycles and Waste Management, Official Journal of the Japan Society of Waste Management Experts
Honors
- Visiting Professor, School of Civil Engineering, University of Leeds, UK (2002-2004)
- Chair, Working Group on Developing Countries, IWWG (2004 to present)
- Member, Executive Committee of Advisory Board, College of Engineering, San José State University (1994 to 2004)
- Recipient, Dean College of Engineering Service Award, San Jose State University, 1998
- Recipient, 1982 Engineering Award of Distinction, San Jose State University
- Honored PHD, Bauhaus University Weimar
Member
- American Society of Mechanical Engineers (ASME)
- American Society of Agricultural Engineers (ASAE)
- Soil Conservation Society of America (SCSA)
- Sigma Xi
- Working Group on Developing Countries, International Waste Working Group (IWWG)
- Institute of Waste Management, South Africa
- National Solid Waste Association of India
- Solid Waste Association of the Philippines
- Board of Directors, ORBIT Association
- Founding Member, IWWG