**About the Editors**

#### **Jos ´e Ignacio Lombra ˜na**

Jose Ignacio Lombra ´ na received his PhD in Industrial Chemistry from the University of the ˜ Basque Country (UPV/EHU), where, since 1997, he has been a professor in the area of Chemical Engineering. Currently, he teaches Fluid Mechanics to chemical engineers and biotechnologists and, within the Master in Chemical Engineering, Water Treatment. He has guided a large number of pre-graduate and Master's studies at a rate of about 2 per year. His research activity deals with advanced technologies for the removal of water contaminants and applications of microwave drying processes, in which he has led different projects of his research group, funded by national (CICyT, MINECO) and international (CTP, FEDER) institutions. He has authored more than 80 papers that have appeared in internationally highly recognized journals. As an instructor for young post-graduate researchers, he was supervisor and director for 17 doctoral theses (13 defended). In the last ten years, he has been a committee member and has been the coordinator responsible for the PhD Chemical Engineering program for the UPV/EHU.

#### **H ´ector Vald ´es**

Hector Vald ´ es has a Doctorate in Chemical Engineering from the Universidad de Concepci ´ on´ (2003). He was awarded with Postdoctoral Fellowship by the German Academic Exchange Service (DAAD) and conducted a postdoctoral research at the Technical University of Clausthal (2003-2004). In November 2017, he was appointed Professor (Full) at Universidad Catolica de la Sant ´ ´ısima Concepcion. He teaches a wide variety of courses at the School of Engineering-UCSC. He has guided ´ 39 pre-graduate reports, 7 Master's theses and two Doctoral theses. He is currently the Director of the Clean Technologies Laboratory, Engineering Faculty, UCSC. His main research areas are related to the development of new technologies for the control of air pollution and unconventional technologies for wastewater treatment based on advanced oxidation processes. Currently, he is the author of 75 Scopus articles (66 indexed in WoS), with 1652 Scopus citations and an H-index 19 (Scopus, WoS). He has two invention patents. He has been awarded with 10 FONDECYT project grants (6 as a Responsible Researcher, 1 as a Co-researcher and 3 as a Sponsoring Professor). He was the director of an international ECOS-CONICYT project. He contributes to bring closer the science and technology to high school students with the development of EXPLORA projects. He is a permanent reviewer of 15 prestigious journals in the WoS category.

#### **Cristian Ferreiro**

Cristian Ferreiro is a Postdoctoral Researcher in the Chemical Engineering Department at the University of the Basque Country (UPV/EHU). He completed his PhD degree in Chemical Engineering at UPV/EHU in 2021 and obtained a Master's Degree in Chemical Engineering at UPV/EHU in 2016. His main research interests are: i) advanced oxidation processes (AOPs), ii) tap water and industrial wastewater treatment, iii) the development of new catalytic materials to drive the circular economy in heterogeneous photocatalysis and ozonation processes, iv) water disinfection and v) water reuse through the integration of AOPs and membrane processes. He has been involved in four research projects and one enterprise project. He has published 12 papers in SCI journals, a book and more than 25 conference proceedings and communications with an H-index of 5 (WoS).
