In gaining access to clean or drinkable water, the following questions such as; having access to clean water? Where to get it from, and cost of getting it? Need to be answered. According to World Health Organization, 2.6 billion people in the world have access to clean and drinkable water source since 1990, while 663 million people still drink water from unprotected source. This kind of people are said to be found in rural or disperse settlement with no access to mother days technology. Drinkable or clean water are water that has pass through treatment processes, such as filtration, chlorination, coagulation, sedimentation and disinfection. Drinkable water comes from various sources including private wells, public water systems, or bottled water. To ensure safe and healthy drinkable water, may simply mean accessing it by turning the tap from an environmental protection agency that regulates public water system. Other drinkable water sources may require a water filter, and a regular inspection on water fluoridation, or carrying out a check to make sure a septic tank is set up in far distance to a private well.
An organization from Cleveland, called The Billion Bottle Project (BBP), is a non-profit organization based in Ohio is working to increase access to drinkable water. The group makes use of solar disinfection (SODIS) technique to enhancing the supply of clean water. There work involves using the power drawn from the sun to kill bacteria and viruses in water. Research shows that after several trials, the use of SODIS was found to reduce diarrheal disease, while on the other hand it was observed to lead to death of children under the age of five. With the endorsement of SODIS by UNICEF and WHO due to its effectiveness, people still find it difficult to know when their water is safe for drinking after treatment. The group also taught of modernizing SODIS by introducing more accurate SODIS sensor. The BBP are ensuring that the design is low-cost and accessible to everyone. The feasibility of this technology is that, it eliminates all variables, such as; when to start SODIS, when is SODIS treatment completed. BBP is seeing a future where every family of the world has a clean and drinkable water source.