International Symposium for Global Sanitation
“The Sanitation Triangle: Socio-Culture, Health, Materials”


Sanitation refers to a system that hygienically separates humans from harmful excreta and promotes its safe treatment and disposal. To date, sanitation issues have been focused on infrastructure and facility installation, environmental conservation for alleviation of water and soil contamination, and adverse health outcomes linked to unimproved sanitation. However, sanitation goes beyond technology, encompassing values spawned amidst humans and local communities, which can fall into the nexus of three components: Health, Materials, and Socio-Culture. Our observations of this nexus led to the creation of the Sanitation Triangle concept.

This symposium brings this novel concept which is the culmination of our international research addressing global sanitation. We deliver each component of the Sanitation Triangle above, which comprises concepts and case studies. Notably, it showcases interdisciplinary and transdisciplinary research works involving a variety of local actors ranging from children and youth to local governments.

Now, it is time to grab the Sanitation Triangle and embark on an enlightened quest through global sanitation.

Taro YAMAUCHI, Sanitation Project Leader, Research Institute for Humanity and Nature (RIHN)

Date & Time: 14 October 2021 / 13:00–17:00 (JST)
Venue: Online (Zoom)
*Pre-registration is required
Organized: “The Sanitation Value Chain: Designing Sanitation Systems as Eco-Community-Value System”
Project, Research Institute for Humanity and Nature (RIHN)
Abstracts: PDF
Project Event Page

    Welcome Address

  1. 13:00–13:05
  2. Juichi YAMAGIWA (RIHN, Director-General)

    Opening Remarks

  3. 13:05–13:10
  4. Taro YAMAUCHI (RIHN/Hokkaido University)

    Keynote Address

  5. 13:10–13:40
  6. The Sanitation as a Value Creating System

    Naoyuki FUNAMIZU (Muroran Institute of Technology)

  7. 13:40–13:50
  8. Q & A

  9. (13:50–13:55 Break)
  10. Introduction

  11. 13:55–14:05
  12. The Sanitation Triangle for SDGs and beyond



  13. 14:05–14:20
  14. Socio-Cultural Aspects of Sanitation

    Seiji NAKAO (Kyoto University)

  15. 14:20–14:35
  16. Dissociation between National Policy and Local Communities in regard to Water Supply Management

    Mayu IKEMI (Sapporo International University)

  17. 14:35–14:40
  18. Q & A


  19. 14:40–14:55
  20. Sociocultural Determinants of Health in Water, Sanitation and Hygiene


  21. 14:55–15:10
  22. Participatory Action Research for WASH with Children and Youth in Peri-Urban Communities

    Sikopo NYAMBE (Hokkaido University)

  23. 15:10–15:15
  24. Q & A


  25. 15:15–15:30
  26. Interactions between Materials and Socio-Culture in Sanitation

    Hidenori HARADA (Kyoto University)

  27. 15:30–15:45
  28. Social Relationships and Material Flow in the Co-Creation of Sanitation Systems

    Ken USHIJIMA (Hokkaido Research Organization)

  29. 15:45–15:50
  30. Q & A

  31. (15:50–15:55 Break)
  32. Comments & Discussion

  33. 15:55–16:05
  34. Comment 1: Paul SHRIVASTAVA (The Pennsylvania State University)

  35. 16:05–16:15
  36. Comment 2: Tetsu SATO (Ehime University)

  37. 16:15–16:55
  38. Discussion

    Closing Remarks

  39. 16:55–17:00
  40. Taro YAMAUCHI

Contact: Sanitation Project, Research Institute for Humanity and Nature (RIHN) E-mail