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Designing for Sustainable Sanitation: floating toilet case study

Designing for Sustainable Sanitation: floating toilet case study



WASH 2011 conference: Judy Hagan, Engineers Without Borders Australia,

WASH 2011 conference: Judy Hagan, Engineers Without Borders Australia,
Michael Brown, Live and Learn Environmental Education



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  • Thank-you to our community partners. Without them, the project would be impossible.Feedback. If time:MrSokSueng: "Good Sanitation means good MrSokSovann: "My floating toilet is good for my health, is more convenient and private"Mrs Yan Yeoun: "Clean water is important for our health"Ms Lai-Im: Community Liaison Officer"Clean water is the most important thing to our community"PichVongsa: Principle from the PhatSanday Secondary School"Our community wastes money on health care, that we wouldn't need to spend if the water was clean"MrHakleyKe: Teacher at the Secondary School Community Liaison Officer"I want everyone in the community to have a toilet.”
  • I would like to come at the end and make a brief comment to advocate for small funding packages over time that allow innovative development without high expenditure. That these can then make large scale processes possible in challenging environments.
  • Since 2008, Engineers Without Border Australia has been working with Live & Learn Environmental Education Cambodia, partners and the communities of Phat Sanday to assess, research, develop and trial a sanitation response for communities living in one of these challenging environments, the Floating Communities of the Tonle Sap Lake in Cambodia.

Designing for Sustainable Sanitation: floating toilet case study Designing for Sustainable Sanitation: floating toilet case study Presentation Transcript

  • Designing for Sustainable Sanitation: floating toilet case study
    Judy Hagan
    Michael Brown
    Engineers Without Borders Australia
    Live and Learn Environmental Education
  • Designing for Sustainable Sanitation
    Sustainability of affordable sanitation
    Affordability of sustainable sanitation
    Sandy soils, high water tables
    flooding and floating housing
    We are not done with sanitation design
  • Floating Communities of Tonle Sap
  • Tonle Sap Floating Toilet Project
    Use this slide as a template for your presentation
    Presentation Tmplate
  • Design Approach
    Goal was to develop sanitation options that are:
    culturally appropriate, affordable, sustainable
    Design requirements:
    local production, local materials and expertise
    Holistic considerations from the start:
    gendered, considered whole of cycle, always working towards self-sustaining market delivery
  • Toilet Design Process
  • 3 Hole Urine Diversion Desiccation Toilet (UDDT)
    Faeces collected dry in bucket, ash added, stored for 6 months
    Urine diverted
    Wash water diverted - from menstrual hygiene and anal cleansing
    Consumables: soap, ash, water
    Materials: cement, bowl from market as cover, pvc pipe, reused buckets, wood or metal frame constructed locally
    Cost: ~35USD
  • Floating Community Waste Management Station
    Built as a demonstration of what is achievable within the Tonle Sap Environment.
    Designed to:
    Act as platform for trials of several different treatment methods.
    Integrate with energy and food production.
    Desiccation and storage waste treatment process currently under trial.
  • Floating Garden
    Community lead trial using common vegetables.
    Using the waste management station as a foundation for trial.
  • End Goal: Sustainable sanitation for floating communities(and other communities in Challenging Environments)
    Community lead design and trial
    UDDT using local materials and methods
    Waste treatment linked with energy and food production
    Commercially sustainable

    Under trial
    Foundation in place
  • Partners and Donors
    Cambodian Ministry of
    Rural Development
    Engineering Institute of Cambodia
    Royal University of Phnom Penh