Ryoko Sekifuji, Chieu Le Van, Masafumi Tateda. Case Study on the Establishment of a Local Circular Economy Loop through Recycling School Uniforms in a Japanese Countryside. Applied Sciences Research Periodicals. 2025. 3. 1. 1-14
RYOKO SEKIFUJI, CHIEU LE VAN, YOSHIKI TAKABE, MASASHI WATANABE, MASAFUMI TATEDA. Case Study of a Cost Reduction Trial Based on Postponement of Sludge Withdrawal from an Oxidation Ditch Process with a Small Sludge-Reduction Process. Japanese Journal of Water Treatment Biology. 2023. 59. 4. 39-47
Ryoko Sekifuji, Le Van Chieu, Masafumi Tateda, Hiroshi Takimoto. Solubility and physical composition of rice husk ash as a function of calcination temperature and duration. International Journal of Recycling of Organic Waste in Agriculture. 2021. 10. 19-27
RYOKO SEKIFUJI, LE VAN CHIEU, MASAFUMI TATEDA, HIROSHI TAKIMOTO. Effects of Compaction on Silica Solubility and Physical Properties of Rice Husk Ash for Fertilizer Use. Japanese Journal of Water Treatment Biology. 2021. 57. 3. 55-65
Ryoko Sekifuji, Le Van Chieu, Masafumi Tateda, Hiroshi Takimoto. Sustainability of a rice husk recycling scheme. International Journal of Recycling of Organic Waste in Agriculture. 2020. 9. 411-421
Effect of Alkaline Solution Concentration on Strength Development of Geopolymer Improved Soil
(9th Japan-Taiwan Workshop on Geotechnical Hazards from Large Earthquakes and Heavy Rainfalls Integrating Urban Geo-informatics)
Three Essential Conditions for Sustainable Heat Recovery Scheme of Rice Husk as Unused Biomass-Hauling, Physical State, and Material Recycling
(ACEAIT 2023)
Case Study: Cost reduction for sewage sludge disposal by installing the self-oxidation process in a field-scale municipal sewage treatment plant
(WRFASE International Conference, New York 2023)
Study on Physical and Chemical Differences of the Colors of Alkali Treated Solutions of Incinerated Rice Husk Ash on Different Temperatures
(The 36th International Conference on Solid Waste Technology and Management (Vertual) 2021)
Considerations and the Essential Aspect for Sustainable Energy Recovery from Rice Husks
(30th Annual International Conference on Soil, Water, Energy, and Air 2020)
2023/03 - WRFASE International Conference, New York, United States of America Excellent Paper Case Study: Cost reduction for sewage sludge disposal by installing the self-oxidation process in a field-scale municipal sewage treatment plant
2018/07 - Elsevier Outstanding Contribution in Reviewing for Journal of Environmental Management
1994 - Pennsylvania Water Environment Association Student Research Award