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Value from waste – converting a problem into a resource
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Value from waste – converting a problem into a resource


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Presented by Jeremy Bird, IWMI, for the Laureate Seminar during World Water Week in Stockholm on 5th September 2013.

Presented by Jeremy Bird, IWMI, for the Laureate Seminar during World Water Week in Stockholm on 5th September 2013.

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  • To stay within the proposed limits, humanity would need to reduce the rate at which it is harvesting N from the atmosphere by 75%. This would require minimizing losses and a significant increase in RRR.
    But also Phosphorous is getting critical, and there is no industrial production possible. It is estimated that the global available P from urine and feces could account for 22% of the global P demand (Mihelcic et al., 2011)
  • This brings us now to the statement that RRR is actually not new, but we can hardly find it a scale, or in a viable form, especially in low-income countries. (Words can move from the slides to your notes). You could say that cost recovery is important and reuse offers so far largely unused options. We do not speak here about ‘profit’ but about any degree of cost recovery which would already be a huge progress.
  • No more to say that what is on the slide.
    This also in honor of the 2013 laureate. They use indeed the words ‘inspired by’ on the webpage.
  • Here we are making our point with no more to say than what is on the slide.
  • This slide shows that the different scale and the urban context change transport distances and this means mostly costs. It is no longer reuse by the waste producer farm household), it is now a completely new situation which needs a new solution.
    The slide shows Singapore.
  • This is the only slide with an animation. The current view disappears and shows how in an urban area the “loop” would look. Nothing more to say than what is written here, and then to press for the hidden slide which does not need any words either. (it is from our work with SANDEC/EAWAG in Kumasi, Ghana. It is still simplified as all households are in one box)
  • This is a summary slide which combines the key implications for addressing the presentation topic. Next comes briefly that WLE RRR is trying to walk the talk.
  • RRR as part of the CGIAR program on WLE, no further words
  • To be read, a summary of what RRR is doing.
  • The one slide example of a business model on fecal sludge valorization we are implementing as PPP funded by BMGF in Ghana
  • Your final slide on the downside if we do not go for the better alternative.
  • Transcript

    • 1. Value from waste – Converting a problem into a resource Jeremy Bird, IWMI
    • 2. Modified from Rockström et al. (2009) Planetary boundaries High time for Resource Recovery and Reuse!
    • 3. What if urban wastes and used water could have a second life in agriculture and the reuse is actually safe and viable?
    • 4. Where there's muck there's money • In many cultures, wastewater reuse and waste composting have a long tradition, at least at household level. • The technical knowledge is available. • It is an apparent win-win situation for the sanitation, environmental and agricultural sectors. • Why is there no large compost plant or wastewater reuse project in every southern city?
    • 5. The concept is simple, at least for rural households Source: Wikipedia inspired by Peter Morgan
    • 6. It is not that simple in our urbanizing world
    • 7. www. This means first of all transport COSTS between source and reuse
    • 8. Atmosphere Peri-urban agriculture Urban agriculture Saw-mills Breweries Poultry farms Transport/ Distribution Landfill Fertilizer 1 Fertilizer 2 Food 1 Food 2 Food 3 Consumer products 1 Compost 1 SW10 Excreta3 SW3 SW5 SW9 SW 11 SW12 Excreta1 WW1 Gas3 WW2 BS 1 Raw material SW 13 Food 4 Consumer products 2 Compost 2 System border Industry Excreta 2Wood1 Wood2 120 1150 13 3200 1700 3200 680 43 230 80 4750 230 530 1010 130 830 220 640 2500 15 90 530 700 <10 18 530 Air1 Air2 Gas5 Gas6 Gas7 400 85 <10 <10 560 Gas1 Gas2 1000 30 <10 Soil SW2 640 Leachate1 50 Leachate2 110 WW3 150 SW6 SW8 7 130 Co-composting Household Treatment of excreta Scenario 1 Groundwater and surface waters city level N t/yr Source:SANDEC/EAWAG It looks easy But in a city it looks more like this:
    • 9. Thus, for converting our larger urban waste problems into a resource, we need strategic partnerships and have to apply robust economics and business modeling.
    • 10. Resource Recovery & Reuse (RRR) A research flagship of CGIAR-WLE
    • 11. Current Status of RRR program after 18 months  Database of 150+ inspiring RRR business cases  Selection of 60 cases for in-depth analysis (see map)  So far 20 promising business models extracted  Feasibility studies of models starting in 9 cities (map)  Business model implementation targeting 5 cities
    • 12. Example of a business model currently being implemented in Ghana as a Private Public Partnership : Fecal Sludge Valorization