Keynote Speaker Ⅰ
Laboratory of Systems Ecology and Sustainability Science, College of Engineering,
Peking University, Beijing 100871, PR China
G.Q. Chen is a professor of systems ecology and sustainability science at Peking University, China and a distinguished adjunct professor at King Abdulaziz University, Saudi Arabia. He has a wide spectrum of research interests including climate thermodynamics, computational fluid dynamics, heat and mass transfer, ecological modelling, ecological economics, renewable energy, and systems input-output analysis. With distinguished contributions as marked by around 300 publications in world-leading journals, Prof. Chen has won a series of awards and honors, such as Elsevier Atlas Award, ISI Highly Cited Researcher, Thomson Reuters Highly Cited Researchers Award, and Thomson Reuters China Citation Laureate. He served as the chief editor, associate editor or advisory member for 50 international journals such as Communications in Nonlinear Science and Numerical Simulation, Energy Policy and Ecological Indicators.
Speech Title: An overview of the carbon-neutrality and renewability of concentrating solar power technology in context of China’s carbon peak by 2030
Keynote Speaker Ⅱ
Prof. Sergio Ulgiati
Parthenope University of Napoli, Italy
Education in Physics and Physical Chemistry. Professor of Life Cycle Assessment and General Systems Theory. Research experience in energy conversion systems, Energy and Emergy Analysis, Life Cycle Assessment, Sustainability indicators. In most recent years, his research activity expanded to the evaluation of options for zero emission technologies and strategies (ZETS). Large international experience in both research and teaching/dissemination activities. Experience in organization and coordination of international meetings and research projects.
Speech Title: Capacity building, circular economy, social and environmental well–being
Abstract: Designing Circular Economy patterns for a country´s economy is not an easy task. Circular Economy is not only a technological improvement that allows to recover resources or to extend their lifetime within production and consumption processes. The main challenge of CE is addressing the complexity of pathways and strategies for quality of life and environmental integrity. A suitable planning of production and consumption processes is needed, in order to prevent: (i) resource depletion and misuse, (ii) environmental degradation due to resource extraction, processing and related emissions, (iii) waste generation and landfilling, (iv) increase of impacts on environmental and human health. These challenges require ability to apply appropriate prevention and monitoring methods and ability to understand the production dynamics and potential improvement roadmaps, through capacity building implementation and environmental accounting approaches. Recognizing societal and environmental complexity is an important step away from linear production patterns, where waste generation is the rule and waste disposal is the only solution. In the present study we address the complexity of selected production sectors (agriculture, industrial manufacture, waste management, wastewater treatment) by means of Life Cycle Assessment (LCA) and EMergy Accounting (EMA) approaches, to ensure that processes are investigated across upstream and downstream time and spatial scales. An integrated method, named LEAF (LCA & EMA Applied Framework), to develop scenarios for informed production choices and policy making is then applied. Case studies of LEAF application to agriculture as well as to industrial production (paper, steel) are shown.
Keynote Speaker III
Wonyong Choi, Ph.D., Namgo Chair Professor
Head, Division of Environmental Science and Engineering
Pohang University of Science and Technology (POSTECH)
Wonyong Choi received B.S. from Seoul National University (Korea) in 1988, M.S. from POSTECH (Korea), and Ph.D. from CALTECH (USA) in 1996. He then worked at NASA Jet Propulsion Laboratory from 1996 to 1998 as a postdoctoral scholar. He joined POSTECH in 1998 as an assistant professor and became a full professor in 2008. His research interests are mainly focused on semiconductor photo(electro)catalysis and photochemistry for solar energy conversion and environmental applications, advanced oxidation processes, and environmental chemistry. Dr. Choi has published more than 315 articles which have been cited more than 42,000 times in scientific journals to date (H-index 89). He was appointed as Namgo Chair professor (POSTECH) in 2012, elected as Academician of Korean Academy of Science and Technology (KAST) and Fellow of Royal Society of Chemistry (FRSC) in 2014. He received Young Scientist Award (KAST) in 2005, KAST Science and Technology Award in 2015, Korea Engineering Award in 2018, and was selected as Highly Cited Researcher by Clarivate Analytics in 2019 and 2020. He is serving as an editor-in-chief of ACS ES&T Engineering since Jan. 2020 and has served as an associate editor of Environmental Science & Technology (2017-2019) and an editor of Journal of Hazardous Materials (2008-2017). He has been also on the advisory board of Nature Sustainability (since 2020), Energy and Environmental Science (since 2008) and ACS Earth and Space Chemistry (since 2017).
Speech Title: Solar photo(electro)catalytic systems as a sustainable environmental technology
Speech Abstract: The photoinduced electron transfer process occurring on the semiconductor surface is being extensively investigated as a sustainable technology that can utilize solar energy for various energy and environmental applications. Metal oxides such as TiO2, WO3, and Fe2O3 and polymeric carbon nitride that consist of earth-abundant elements are the most practical base materials for photoelectrochemical (PEC) and photocatalytic (PC) conversion systems. The interfacial engineering of the semiconductor electrodes and nanoparticles can optimize the photoconversion reactions of diverse characteristics (e.g., degradation of pollutants, production of solar fuels and chemicals). In this talk, the developments of PEC and PC systems for sustainable purposes will be introduced and discussed, which include the PEC synthesis of H2O2 through dioxygen reduction, photocatalytic air purification, photocatalytic denitrification, and PEC water treatment. The limitations and challenges in PEC and PC systems for sustainable environment applications will be discussed.
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