Latest Update:2024/03/11 13:27:40

TAJIMA Ryo

TAJIMA Ryo
Researcher Name
TAJIMA Ryo
Div (Section) name/title
Material Cycles Division(Material Cycles and Social Systems Research Section)/Senior Researcher
Research Subject
Planning and management for integrated waste management
Degree(s)
Ph.D.
Professional Qualification(s)
Policy Studies,Policy Administration,Sociology
Environmental Speciality Field
Disaster waste management,Environmental management and planning,Environmental impact assessment
Keyword(s)
Disaster waste management plan,Disaster resilience,Participatory training methods,Qualitative research,Policy appraisal,International Comparison
Brief Description of Research
Planning and public management for disaster resilient material cycle and waste management
Disaster waste management is one of the major issues for prompt and sustainable recovery from disasters. In order to effectively handle both general and disaster wastes under disaster situation, where time and resource constraints are serious, planning and public management of tasks, organization, personnel, equipment, budget etc. are crucial. In other words, it is essential to pursue sustainable and disaster resilient material cycle and waste management at local level. Under this topic, local governance structure and methodology for waste management, waste amount estimation models, management tools to support sustainable and resilient waste management decision making are studied.

Waste management in aging society
28% of the Japanese population is aged over 65. In terms of waste management, there are some issues related to aging, including disposal of home-medical care waste, treatment of disposable diapers, waste disposal by aged households, etc. Studies on waste disposal supporting mechanism for aged households are in progress, with a special focus on secondary effect in terms of welfare and community development.

Membership of Academic Society
Japan Society of Material Cycles and Waste Management,Japan Association for Planning Administration,Institute of Social Safety Science,Japan society for natural disaster science
Research Subject
  • Fiscal Year: 2023
    • 26405 : -
    • 26406 : Decarbonized and Sustainable Society Research Program
    • 26433 : Making a resilient material cycle and waste management system at local level to tackle mega-disasters
    • 26440 : Establishing a Regime Inclusive of Future Generations in a Sustainable Society
    • 26548 : Environmental Emergency Management Office
    • 26559 : Policy and Management Study for Material Cycles and Waste Management
    • 26610 : Studies on Infection Prevention Measures during Collection and Transportation of Municipal Solid Waste
    • 26648 : Study on the major technical aspects related to the development of local disaster waste management policies
    • 26696 : Advancement of waste treatment and disposal technology and its adaptation to Asia
    • 26698 : International Waste Management Research Administration Office
    • 26703 : Strengthening of Network Enabling Waste Management Scheme in Response to Disaster and Climate Change
  • Fiscal Year: 2022
    • 25984 : Decarbonized and Sustainable Society Research Program
    • 25987 : Establishing a Regime Inclusive of Future Generations in a Sustainable Society
    • 25990 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
    • 25993 : -
    • 25998 : Making a resilient material cycle and waste management system at local level to tackle mega-disasters
    • 26065 : Conceptual design of an online tool for consumers to understand and reduce their material and carbon footprints
    • 26110 : Policy and Management Study for Material Cycles and Waste Management
    • 26198 : Environmental Emergency Management Office
    • 26252 : International Waste Management Research Administration Office
    • 26256 : Strengthening of Network Enabling Waste Management Scheme in Response to Disaster and Climate Change
    • 26292 : Study on the major technical aspects related to the development of local disaster waste management policies
    • 26348 : Studies on Infection Prevention Measures during Collection and Transportation of Municipal Solid Waste
    • 26364 : Advancement of waste treatment and disposal technology and its adaptation to Asia
  • Fiscal Year: 2021
    • 25504 : Decarbonized and Sustainable Society Research Program
    • 25523 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
    • 25530 : Making a resilient material cycle and waste management system at local level to tackle mega-disasters
    • 25534 : Establishing a Regime Inclusive of Future Generations in a Sustainable Society
    • 25693 : Policy and Management Study for Material Cycles and Waste Management
    • 25782 : Conceptual design of an online tool for consumers to understand and reduce their material and carbon footprints
    • 25786 : Study on the major technical aspects related to the development of local disaster waste management policies
    • 25788 : Advancement of waste treatment and disposal technology and its adaptation to Asia
    • 25831 : Environmental Emergency Management Office
    • 25873 : International Waste Management Research Administration Office
  • Fiscal Year: 2020
    • 25097 : Sustainable Material Cycles Research Program
    • 25103 : Environmental Emergency Management Research Program
    • 25125 : Environmental Emergency Management Office
    • 25133 : Proposal of Transition Paths and Adaptation Measures for a Circular Society
    • 25159 : Establishment of disaster resilience in material cycle and waste management system
    • 25161 : Development of environmental emergency management capacity
    • 25162 : Environmental Emergency Research Program
    • 25184 : Studies on Adaptation Strategies Considering Social Change
    • 25221 : Policy and Management Study for Establishing a Sound Material-cycle Society
    • 25358 : Development of organizational management methodology for smaller public authorities towards appropriate disaster waste management
    • 25400 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
  • Fiscal Year: 2019
    • 24694 : Sustainable Material Cycles Research Program
    • 24698 : Environmental Emergency Research Program
    • 24713 : Proposal of Transition Paths and Adaptation Measures for a Circular Society
    • 24741 : Environmental Emergency Management Research Program
    • 24742 : Establishment of disaster resilience in material cycle and waste management system
    • 24744 : Development of environmental emergency management capacity
    • 24758 : Environmental Emergency Management Office
    • 24884 : Policy and Management Study for Establishing a Sound Material-cycle Society
    • 24945 : Development of organizational management methodology for smaller public authorities towards appropriate disaster waste management
    • 24984 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
    • 24990 : Studies on Adaptation Strategies Considering Social Change
  • Fiscal Year: 2018
    • 24296 : Proposal of transition paths and adaptation measures for a circular society
    • 24333 : Environmental Emergency Management Research Program
    • 24334 : Establishment of disaster resilience in material cycle and waste management system
    • 24336 : Development of environmental emergency management capacity
    • 24341 : Environmental Emergency Management Office
    • 24353 : Sustainable Material Cycles Research Program
    • 24357 : Environmental Emergency Research Program
    • 24408 : Policy and Management Study for Establishing a Sound Material-Cycle Society
    • 24539 : Development of Organizational Management Methodology for Smaller Public Authorities towards Appropriate Disaster Waste Management
    • 24619 : Appropriate Solid Waste Management towards flood risk reduction through recovery of drainage function in tropical Asian urban cities
    • 24620 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
  • Fiscal Year: 2017
    • 23832 : Proposal of transition paths and adaptation measures for a circular society
    • 23844 : Sustainable Material Cycles Research Program
    • 23848 : Environmental Emergency Research Program
    • 23862 : Environmental Emergency Management Office
    • 23873 : Environmental Emergency Management Research Program
    • 23874 : Establishment of disaster resilience in material cycle and waste management system
    • 23876 : Development of environmental emergency management capacity
    • 23964 : Policy and Management Study for Establishing a Sound Material-Cycle Society
    • 24042 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
    • 24081 : Estimation technique of disaster wastes in large-scale disaster in connection with the field of disaster prevention
    • 24134 : Appropriate Solid Waste Management towards flood risk reduction through recovery of drainage function in tropical Asian urban cities
  • Fiscal Year: 2016
    • 23402 : Sustainable Material Cycles Research Program
    • 23405 : Proposal of transition paths and adaptation measures for a circular society
    • 23436 : Environmental Emergency Management Research Program
    • 23437 : Establishment of disaster resilience in material cycle and waste management system
    • 23439 : Development of environmental emergency management capacity
    • 23488 : Policy and Management Study for Establishing a Sound Material-Cycle Society
    • 23560 : Appropriate Solid Waste Management towards flood risk reduction through recovery of drainage function in tropical Asian urban cities
    • 23706 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
    • 23721 : Environmental Emergency Management Office
    • 23732 : Environmental Emergency Research Program
  • Fiscal Year: 2015
    • 23038 : Development of management systems for radioactively contaminated off-site wastes
    • 23044 : Environmental Emergency Management Research Program
    • 23045 : Implementation Strategy for Resilience in Material Cycle and Waste Management
    • 23047 : Networking of Disaster and Environmental Emergency Research
    • 23055 : Systems approach and policy study on life-cycle resource management
    • 23181 : Establishment of management technologies and systems for disaster and radioactively contaminated wastes
    • 23318 : Design of research hub for sustainable urban system and waste management
    • 23319 : Adaptation of solid waste management to frequent floods in vulnerable mid-scale Asian cities
  • Fiscal Year: 2014
    • 22650 : Development of management systems for radioactively contaminated off-site wastes
    • 22656 : Environmental Emergency Management Research Program
    • 22657 : Implementation Strategy for Resilience in Material Cycle and Waste Management
    • 22659 : Networking of Disaster and Environmental Emergency Research
    • 22776 : Systems approach and policy study on life-cycle resource management
  • Fiscal Year: 2013
    • 22244 : Systems approach and policy study on life-cycle resource management
    • 22523 : Study for establishment of appropriate technology and system for disaster and radioactive contaminated waste management and disposal
  • Fiscal Year: 2012
    • 21779 : Establishment of management technologies and systems for disaster and radioactively contaminated wastes
    • 21804 : Systems approach and policy study on life-cycle resource management
    • 22052 : Study for establishment of appropriate technology and system for disaster and radioactive contaminated waste management and disposal
Research Result (Publication)
  • all
  • Original Paper
  • Review
  • Book
  • Other Publications
  • An Outline of Disaster Waste Management for the Great East Japan Earthquake from a Technological and Administrative Point of View
    Presenter : Osako M., Tajima R.
    Title : , Global Environmental Research, 18(1):73-80 (2014)
  • Presenter : Sakai S., Yoshioka T., Tsukiji M., Okayama T., Watanabe K., Ishigaki T., Tajima R., Suzuki S., Takai A., Kaji M., Tomoda K., Asari M.
    Title : , Disaster Waste Management Guideline for Asia and the Pacific (2018)
Research Result (Presentation)
  • all
  • Research Presentation
  • Research Lecture