Dr. Pietro Romano is currently a researcher in Chemical Engineering at the University of L'Aquila (Italy), Department of Industrial and Information Engineering and Economics. He received a PhD in Chemical Engineering from the University of L'Aquila in 2024. Currently, his research consists of developing innovative processes for recovering precious and base metals from different petrochemical and e-waste materials. Furthermore, the research activity also considers rare earth recovery from secondary sources through sustainable hydrometallurgical processes. Moreover, other research interests are in municipal and industrial wastewater treatment. His research topics mainly include chemical engineering, hydrometallurgy, industrial waste recycling, WEEE, spent batteries, hydrothermal carbonization, and wastewater treatment. He is the author of various research articles and reviews in international scientific journals and a national patent.