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7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
http://slidepdf.com/reader/full/the-gates-foundation-initiative-on-sanitation-by-roshan-shrestha 1/12
Sub-regional Conference on Wastewater Management: Promoting Innovationsand Sustainable Investment 29 to 31 January 2013.
Building the Sanitation Market
Roshan Raj Shrestha, PhD
Water, Sanitation & Hygiene
7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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Sanitation Gap
No Toilet Vs. Basic Sanitation –what is the real sanitation gap ?
Still high demand for on-site and
decentralized sanitation – sewer
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7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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Roots of the lingering sanitation Crisis
Non viable market approach
Expensive expert solutions andmisleadin conce ts
Limited innovation ca acito Limited R&D
o Limited industrial solution
o Closed communit of ex erts discussions
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7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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The Sanitation Value Chain
Access to sustainable sanitation is achieved by
value chain at scale. Technologies and servicesmeet users’ preferences and national requirements.
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7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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Moving sanitation products and services to scale
Reinvent the
Toilet
Program
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7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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Moving sanitation products and services to scale
Reinvent the
Toilet:
a waterless, hygienic toilet
Overall Specifications:
. ,towards $0.01/person/day (end goal).
Safe: remove all pathogens from the environment.
Appealing: sustained use > 5 years.
User-centered: users create demand.
Sustainable: service providers (public or private) canrecoup complete lifecycle costs (make a businessw
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7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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‐
Moving sanitation products and services to scale
Separate trash and sand from sludge and treat water for
local reuse e ro us suc a e oesn rea own Inexpensive to operate; Inexpensive to purchase;
su erior business model com ared to Vacuum trucks
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and manual emptiers
7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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Omni‐In estor
Moving sanitation products and services to scale
Extraction Mobile Processing
dewater/desand/detrash/clean Faecal Sludge
Faster, safer emptying = more money to the Pit Emptier
Localized scheduled emptying = reduction of cost
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Pumping out to a ‘transfer station’ = greater access
7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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Extraction to ….
Moving sanitation products and services to scale
Fixed Pre-Processing Unit
Processor
reusablewater
Trash
Fecal sludge
© 2012 Bill & Melinda Gates Foundation | 9
7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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‐
Moving sanitation products and services to scale
Remove 100% pathogens from fecal sludge Community power/resource plant? - Recover energy
ue , e ec r c y, oc ar, ogas, o ese ,nutrient/fertilizer and clean water…
Profitable business for investors and operators
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Reduced service fees for poor families living on latrines
7/29/2019 The Gates Foundation Initiative on Sanitation by Roshan Shrestha
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Moving sanitation products and services to scale
Sanitation pricingand model
Structuring fecalsludge emptyingmarket
Up-scaling access tosanitation
…
© 2012 Bill & Melinda Gates Foundation | 11
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We welcome your ideas too !
January 30, 2013 © 2011 Bill & Melinda Gates Foundation | 12
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