**Contents**


**Andrea Petrella, Danilo Spasiano, Pinalysa Cosma, Vito Rizzi, Marco Race and Maria Cristina Mascolo et al.**

Methyl Orange Photo-Degradation by TiO2 in a Pilot Unit under Different Chemical, Physical, and Hydraulic Conditions

Reprinted from: *Processes* **2021**, *9*, 205, doi:10.3390/pr9020205 ..................... **180**
