Prof. Kokyo Oh/ Center for Environmental Science in Saitama, Japan

Prof. Dr. Kokyo Oh is a senior researcher in Center for Environmental Science in Saitama, Japan. He obtained Ph.D. degree (soil science) in 1995, and was honored as a research fellow by Japan Science and Technology Agency (STA) from 1997 to 1999. His research areas include soil science, environmental conservation, environmental chemistry and biology, and environmental agronomy. He has published more than 200 major academic papers, has presided over and participated in more than 100 scientific research fund projects, and has been invited to be the chairman of more than 20 international conferences.

Prof. Satoshi Soda/ Ritsumeikan University, Japan

Prof. Satoshi Soda was born in Kanagawa Prefecture, Japan in 1972. Awarded MSc and PhD in Engineering from Department of Environmental Engineering, Graduate School of engineering, Osaka University in 1997 and 1999, respectively. Assistant Professor of Department of Global Architecture (1999-2008), and Associate Professor of Department of Sustainable Energy and Environmental Engineering, (2008-2017), Graduate School of engineering, Osaka University.
Professor at Department of Civil and Environmental Engineering, College of Science and Engineering, Ritsumeikan University, Japan since 2017, and Associate Fellow of Ritsumeikan Advanced Research Academy since 2022.
The research focuses on wastewater treatment using bacteria and aquatic plants. Recent challenging topics are (1) nitrogen removal from domestic wastewater using simultaneous heterotrophic denitrification and anammox, (2) activated sludge for excess sludge reducing using earthworms, (3) algal-bacterial system for removing LAS and methyl paraben, (4) trickling filters followed by constructed wetlands with edible plants, (5) constructed wetlands for removing azo dyes from Batik wastewater, (6) constructed wetlands for mine drainage treatment in Japan, (7) bioreactors for removing of antimony from wastewater, (8) growing eelgrass using magnesium ammonium phosphate recovered from sewage, (9) methane recovery from rubber seed residue by anaerobic digestion, and (10) Monitoring of seasonal change of algae and bacteria populations in an inner lake of Lake Biwa.

Prof. Hyunook Kim/ University of Seoul, Korea

Dr. Hyunook Kim is Professor at Environmental Engineering, University of Seoul, Korea, and Director of R&D Center of Core Technologies for Water Treatment. Professor Kim earned his B.S. degree in Environmental Science from Yonsei University, Korea in 1994, and an M.S. degree in Environmental Engineering from Johns Hopkins University in 1997, and a Ph.D. from University of Maryland at College Park in 2000. Before he joined the faculty member at University of Seoul in 2002, he worked as Environmental Engineer for US Dept. of Agriculture, MD, USA.
Professor Kim’s research in the area of water pollution control includes a number of projects on process control and operation of water and wastewater treatment plants. Especially he is interested in monitoring and control of contaminants of emerging concern. He has published numerous journal papers and made conference presentations. He has been received a few awards for his academic and research achievements.

Prof. Atsushi Matsumura/ Osaka Metropolitan University, Japan

Biography will be updated soon...

Speech title "Contribution and improvement of legumes for environmentally friendly agriculture"

Abstract-Due to increasing inputs of chemical fertilizers and breeding that can adapt to fertilizer management, crop yields have increased, and food security has been improved. However, increasing chemical fertilizers not only contributes to food security, but also causes environmental problems such as soil deterioration, greenhouse gas emissions, and water contamination. In addition, Japan is almost entirely dependent on imports for fertilizer. Because fertilizer is essential for food production, it is important to secure fertilizer sources for sustainable agriculture. There are several ways to control the increasing use of chemical fertilizers, such as organic fertilizers, recycling by-products, crop rotation, intercropping. Improvement of crop nutrient efficiency also contributes to chemical fertilizers input. Among various crops, legumes, which fix nitrogen from the atmosphere by biological N2 fixation, have potential to contribute to sustainable crop production. 1. Evaluation of relay intercropping hairy vetch as a green manure to reduce chemical fertilizer input: Producing cash crops and green manure crops during the same growing season is a promising strategy for sustainable crop production. The present study evaluated the relay intercropping of a legume green manure crop (Vicia villosa Roth, hairy vetch) and various crops (broccoli, radish and carrot). The fertilizer effects of hairy vetch incorporation obtained by relay intercropping were compared with those of conventional chemical fertilizer input in subsequent crop production (vegetable soybean and sweet corn). 2. Utilization of soy whey as a fertilizer substitute for agricultural production: soy whey is a by-product of the soy industry. Soy whey includes various nutrients, is expected to be an NPK resource for crop production. Fertilizer effect of single soy whey application or combined application with chemical fertilizer.