Clean Water Systemsare provided to each Liberian school by the sale of 26 used college textbooks to raise $500. Electricity and pump equipment delivered will allow each school to pump clean water from below ground wells to make water more accessible to students.
The Liberian Books Project employs the Solar Water Disinfection (SODIS) Method.
Clean drinking water for all?
At least one third of the population in
developing countries has no access to
safe drinking water. The lack of adequate
water supply and sanitation facilities causes
a serious health hazard and exposes many
to the risk of water-borne diseases: There
are about 4 billion cases of diarrhea per
year, out of which 2.5 million cases end in
death, mostly among children under the age
of five. This is equivalent to one child dying
every 15 seconds or 20 jumbo jets crashing
every day. Solar Water Disinfection (SODIS)
can contribute to improve this precarious
What is SODIS?
Solar water disinfection is a water treatment method:
• to improve the microbiological quality of drinking water
• using solar UV-A radiation and temperature to inactivate
pathogens causing diarrhoea
• used at household level under the responsibility of the
• that is simple in application
• that relies on locally available resources, plastic bottles, and
sunlight, a renewable energy source
• that is replicable with very low investment costs
How does SODIS work?
SODIS, Solar water disinfection is a simple method to
improve the quality of drinking water by using sunlight to