We review the photo-catalytic events during the photo-Fenton process for bacterial inactivation.
An inside-out approach is performed, on the direct and indirect physico-chemical and biological effects.
Light, H2O2, Fe and organic matter are dissociated and their contribution is deeply analyzed.
Light alone initiates internal and external photo-catalytic events, leading to bacterial inactivation.
Enhancements and contextualization of the photo-Fenton process in natural waters are performed.