Midomo, is a household‐level water transport, purification and storage solution to be purchased by humanitarian organisations and deployed for use by individuals throughout the developing world.
Midomo, is a household‐level water transport, purification and storage solution to be purchased by humanitarian organisations and deployed for use by individuals throughout the developing world. The device (formerly referred to as ‘ROSS’ or the ‘Reverse Osmosis Sanitation System’) uses an internal filter system, powered by the rotation of the wheels, to transform harmful water to drinkable water on-the-go. A user would roll the unit to the nearest source of water, fill the 50 litre tank, and roll it home. Once home, the water drawn from the unit is potable to World Health Organisation standards.
Pump Displacement: 30ml/rev
Flowrate: 5 L/min @ 3bar
Filter system:
Multi-stage pre-filtration to remove sediment followed by Silver impregnated ceramic micro filter.
Ceramic filter element:
Filtration Rating:
Absolute: 0.9 micron
Nominal: 0.5-0.8 micron
Working Pressure: 0.69-8.62 bar
Working Temp. Range: 5-38°C
Working pH Range: 5.5-9.5
Recommended Change Frequency: 12 months or 10,000 litres
Bacteria:
E. Coli: >99.99%
Vibrio Cholerae: >99.99%
Shigella: >99.999%
Salamonella Typhi: >99.999%
Klebsiella Terrigena: >99.999%
Cysts:
Cryptosporidium: >99.999%
Giardia: >99.999%
A great deal of design work has gone in to ensuring that replacing the filter can be completed by the user or a NGO employee with minimal equipment and training.
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