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Résumé :
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This publication is aimed at researchers, primary health care workers, and technical workers interested in solar energy applications and drinking-water disinfection. It provides basic information on solar energy, covering especially its ultraviolet (UV) component. Aspects such as the transmission of solar radiation through the atmosphere and different media (glass, water, plastics, etc.), its world distribution, and the experimental monitoring of UV radiation in Beirut (Lebanon) are thoroughly discussed. The main water disinfection methods are reviewed and continuous-flow solar systems are explained. These were tested on two types of pilot plants ("solar reactors"), based on the biocidal characteristics of either solar energy alone or halogens in combination with solar radiation
("halosol" system). The experimental results are discussed in detail, covering the kinetics of the processes, design of the reactors, and their performance in terms of bacterial survival and solar dechlorination.
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