Dr. Sami Rtimi is an environmental scientist. He earned his PhD from the Swiss Federal Institute of Technology at Lausanne (EPFL) in Chemistry and Chemical Engineering. Previously, he was awarded a PhD in Biological Sciences from the University of Carthage. With an h-index of 30, he has published more than 120 articles in peer-reviewed journals, patent, several book chapters and presented numerous communications at international meetings. According to Scopus, he is the second most active scientist worldwide working on “Disinfection; Photocatalysis; Microbial inactivation”. He is an international grants' reviewer, editor, guest-editor and regular reviewer for peer-reviewed journals.