ABSTRACT
The majority of diseases present in developing countries are infectious and often caused by bacteria, viruses and other microbes found in polluted water. When people drink this contaminated water, microbes can multiply, cause disease, and be reintroduced through feces back into drinking water, continuing the oral-faecal cycle of disease transmission. Solar water pasteurizers effectively solve the problem of finding a treatment method based on a universally accessible energy source. Solar water pasteurizers do not require electricity; they use the natural heat from the sun as their energy source. They are ideal for use in areas where electricity is not available. Although a relatively new development, solar water pasteurizers hold the promise of high reliability, durability and a long service life. Flow-through solar water pasteurizers can be scaled to meet the water volume needs of many special applications such as small villages, schools, orphanages, health clinics, and hospitals. Pasteurizer systems are modular and can easily expanded to increase production capacity.
