Request For Proposal - Bill and Melinda Gates: Reinvent the Toilet Challenge,Round 3
Monday, October 22, 2012
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Closing Date: November 8,2012:
The Bill & Melinda Gates Foundation’s Water, Sanitation
& Hygiene team is working with partners to develop sustainable sanitation
services that work for everyone. Our approach aims to expand the use of
sanitation that does not connect to a sewer, as this is by far the most common
type used by the poor. We invest in effective approaches that help end open
defecation and unsafe sanitation and we help develop the tools and technologies
that will increase access to sustainable non-piped sanitation for the urban
poor.
The Sanitation Challenge:
A large share of the solids and liquids people eat and drink
are passed on in urine and feces. Human waste contains potentially valuable and
recyclable resources such as water, energy, urea, and minerals. It also
consists of large amounts of useful as well as harmful microorganisms, mostly
bacteria, as well as pathogens ranging in size from viruses to helminthes. Many
diseases are passed on from person to person through the fecal-oral
pathway—pathogens in one person’s waste end up ingested by another. For some
diseases, this is the primary transmission pathway; for others, it is one of
several transmission pathways. Human waste also contains residues of the many
complex, engineered chemicals people use, such as food additives, antibiotics,
hormones, and nutritional supplements, some of which remain in the environment
and result in unsafe accumulation in waste sinks.
Goal of This Request for Letters of Inquiry:
The third round of the Reinvent the Toilet Challenge is
designed to prototype a means of dealing effectively and cost-efficiently with
human waste for the 2.5 billion people on earth who currently lack access to
safe and affordable sanitation.
Successful applicants will participate in the next phase of
the Reinvent the Toilet Challenge by designing, prototyping and testing entirely
stand-alone, self-contained, practical sanitation modules which intake bodily
wastes or fecal sludge collected from pit latrines and septic tanks and swiftly
dispose of them without any incoming water piping, outgoing sewer piping or
electric or gas utility services. These modules must intake all outputs of the
serviced population – ultimately at single-residence scales (smaller-scale
individual family toilet solutions) or group of households (larger-scale
neighborhood fecal sludge processor solutions)– with minimal module footprints
and assured biosafety. The anticipated capital and operational cost for the
final products (commercial units) is expected to be less than $0.05/user/day,
both for the family and neighborhood solutions. The design should anticipate
the effects and fate of complementary sanitary products entering the system
such as paper, cloth, sand, and other personal hygiene products and chemicals.
Source and More Informations:
Categories:
Call For Proposal,
Request For Proposal
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