With the new Sustainable Development Goals (SDGs), particularly with goal 6.3, the focus is shifted towards the improvement of water quality "by reducing pollution, eliminating dumping and minimizing release of hazardous chemicals and materials, halving the proportion of untreated wastewater, and increasing recycling and safe reuse globally". In general, the SDGs are more focused on the path from the user's interface to the treatment and even resource recovery and reuse.



Cities are facing different challenges regarding sanitation and resources. There are still 700mio people lacking improved sanitation access globally (of which 80mio still practice open defecation). Furthermore, cities are major resource consumers and the pressure on our resources is growing further (urban population growth, water demand growth, climate change impacts).

Inspired by the Shit Flow Diagrams (SFD) the Resource Value Mapping (REVAMP) Tool was developped. It is a tool for evaluating the resource revocery potential of urban waste streams.


Objectives of the REVAMP Tool

Support integrated waste resource management and recovery, advancing in sustainable water and sanitation service, and addressing multiple urban development challenges through incresed cross-sectoral stakeholder engagement.


Target users

Policy-makers and planners, water, sanitation and waste managers, entrepreneurs and inverstors; development practitioners, students and researchers


Key initial features
  • Estimate the resources that could be recovered in various forms (such as water, plant nutrients, biogas)
  • Estimate quantities of reuse products that could be produced
  • Estimate potential revenues from different reuse products
  • Comparison of reuse options, based on energy and nutrient content, and potential revenues, - to support decision making on city sanitation and waste management plans.
  • Material of the Question & Answer session available

    Any questions about SFDs? Watch our recent Q&A session about SFDs 

    1. Presentation: The SFD Manual - a guide to content and process

    2. Presentation: The SFD Review Procedure

    3. Presentation: The SFD Helpdesk

  • Presentations about SFDs in Africa and Indonesia

    Watch the presentation with voice on SFDs in Africa and Indonesia

    1. SFDs in Africa: From Visualization to Action

    2. How the Government of Indonesia is using the SFD

  • Global call for SFDs – Nov. – Dec. 2017

    Where are you standing in the SFD process? 

    We would like to offer you extra support, so you can either start preparing or complete your SFD and have it ready to be used for your purpose.

    Submit your SFD until December, 15th 2017!

  • SFD: The Indonesian Case (video)

    Watch the video (full version) on how the SFD was introduced in Indonesia and why the Indonesian government sees it as a useful tool to improve urban sanitation!

  • SFD Offline Graphic Generator

    You can now download SFD offline Graphic Generators for Windows and Mac.

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