ABSTRACT

This chapter illustrates a number of solar-driven processes, and approaches coupled with other new technologies such as membrane distillation, that are highly efficient in the removal of pathogens from different water matrices. The use of solar radiation for drinking water disinfection is also well known. Solar disinfection (SODIS) has the advantage of inactivating pathogens in water by means of the synergistic effect of mild temperatures and solar photons. In view of the above, the use of devices to enhance the collection of solar photons has also become an important natural solar radiation treatment issue. Among the different reactor configurations reported in the literature, the compound parabolic collector (CPC) has been shown to be the best option for solar water treatment. The photocatalytic efficiency of this treatment is strongly dependent on catalyst concentration. To reach the maximum photocatalytic yield, catalyst concentrations must be tested to find the best photoreactor conditions.