Keynote Speakers

Confirmed Keynote Speakers

Prof. Dr. Raffaello Cossu

University of Padoa, Italy

Prof. Dr. Raffaello Cossu is a full professor of Environmental Engineering at the University of Padova. Italy, since 1997. His research activities have focused mainly on subjects related to waste management (treatment and landfilling) and remediation of contaminated sites. Projects undertaken to date include the following: Aqua Nova Project on separation of sewage flows and integrated management with putrescible MSW; phytotreatment; anaerobic digestion with production of hydrogen and methane; composting of sludges and other industrial organic wastes; on-site aeration for the remediation of old landfills; processes and technologies aimed at achieving landfill sustainability.

Raffaello Cossu has a long experience in consultancy in the following fields: sanitary landfills for municipal and special waste, remediation of old landfills, resource recovery plants. He has spent several research stages in various scientific Institutions and has been invited as Visiting Professor to numerous Universities worldwide. He is member of the International Mentors Group for the Environmental Engineering Programme of the University of Kalma in Sweden, Chairman of the Italian Technical Committee for Guidelines on Sanitary Landfill, Italian Coordinator of the Governmental Agreement on Waste Management between Italy and Japan, founding member of the European Waste Club and of the International Waste Working Group. From 2004 to 2008 Prof. Cossu was President of the IWWG - International Waste Working Group, an international scientific association for waste management (

Since 1987 he has held the position of Chairman of the Scientific Committee of the International Symposia on Sanitary Landfill held on a biennial basis in Sardinia, promoted by the EU and by the US Environmental Protection Agency, constituting the most important conference worldwide in the field (the 2007 edition of the Symposium saw the participation of 1100 participants from 80 different countries). Moreover, he has promoted and coordinated the Biennial International Symposia on Energy from biomass and waste. He is author of more than 200 scientific publications and co-editor of five international books on waste management.

Prof. Dr. Luis F. Diaz

CalRecovery, Inc., USA

Dr. Diaz received a Doctorate in Environmental Engineering from the University of California, Berkeley (California, USA) and a Doctorate in Engineering (h.c.) from the Bauhaus University in Weimar, Germany. Dr. Díaz has been involved in the field of environmental management, waste management and renewable energy production for more than 40 years. He has participated in projects dealing with final waste disposal and waste treatment for the recovery of materials and energy, has prepared feasibility studies and master plans in the United States and more than 45 countries. He currently is the President of CalRecovery, Inc. a consulting engineering company in California, USA.

Dr. Diaz has advised on the areas for environmental protection and in the development of non-conventional energy sources for various international organizations such as the World Bank, The Asian Development Bank, the U.S. International Development Agency (USAID), the Peace Corps, and several United Nations agencies (UNIDO, UNICEF, UNEP, WHO, PAHO).

Throughout his career, Dr. Díaz has sought a balance between academic activities, Research and Development, and fieldwork. As such, he was Editor-in-Chief of the journal "Waste Management", a peer-reviewed journal published by Elsevier. He is also a member of the Editorial Board of several journals in the field of waste management and the environment. Dr. Díaz has more than 500 publications in the field of waste management and power generation. He has also authored and co-authored several books dealing with the treatment and final disposal of solid waste and the treatment of organic waste for energy recovery and the production of soil amendments.

He has been Keynote speaker and made presentations at a large number of national and international conferences, in colleges and universities in the fields of waste and energy management. Dr. Díaz has participated in the organization of several specialized training courses and has participated in more than 400 seminars and symposia in several countries. He has lectured on various aspects of environmental protection at various universities around the world.

Dr. Diaz is the Chairman of the Working Group on Solid Waste Management in Development Countries for the International Waste Working Group (IWWG).

Dr. Díaz was one of the authors of the fourth IPCC Evaluation Report. Working Group III: Mitigation of Climate Change, Chapter 10: Waste Management. This IPCC work was awarded the Nobel Peace Prize in 2007. The award was shared with Mr. Al Gore 45th Vice President of the United States.

Prof. Dr. Sandhya Babel

Sirindhorn International Institute of Technology, Thailand

Dr. Sandhya Babel is a full time Professor at the Sirindhorn International Institute of Technology (SIIT), Thammasat University, Thailand. Her current research interest includes conversion of waste to energy, recovery of valuable materials from waste, low cost technologies for wastewater treatment, microplastics, photocatalysis, phytoremediation and adsorption.

Dr. Sandhya has published more than 100 publications in both International and National journals. She received award from the Thammasat University Research Center for high number of citations and high number of Journal publication with impact factor.

Prof. Dr. Dezhen Chen

Tongji University, China

Since 1992 Dezhen Chen has been working on municipal solid waste (MSW) incineration and the related pollution control when she began her master thesis, and with the similar topic she finished her Ph.D dissertation in 1997.

From 2001 to 2002 she had been working in E & R, DTU, Technical University of Denmark especially on the field of incineration fly ashes disposal. In 2005 she had been promoted to be professor. In 2006 she worked in E & R, DTU again on the area of life cycle assessment (LCA) of waste management and technologies. Presently her main research fields include MSW recycle via thermochemical methodology such as waste to energy, pyrolysis and pyrolysis char utilization, gasification, flue gas cleaning and fly ash treatment and disposal.

She has published more than 130 papers in Chinese & international journals and own more than 20 patents, including 2 American patents



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