Alejandro Gonzalez-Martinez graduated in pharmacy in 2009 at the University of Granada, obtaining in his fifth year of graduation a national collaboration scholarship. Subsequently, he completed his international doctoral thesis at the University of Granada, studying new autotrophic nitrogen elimination systems, both from a technical and microbiological point of view. As part of his doctoral thesis, he spent a stay at the Technical University of Delft (Holland), where he had the opportunity to work with full-scale anammox bioreactors. After he obtained his Ph.D., he was awarded the Extraordinary Doctorate Prize by the University of Granada and received the third edition of the SACYR Awards. Then, he worked as a postdoctoral fellow at the University of Granada and the Technical University of Aalto (Finland). He joined the Department of Microbiology of the University of Granada, where he is a full professor at the university, carrying out teaching and research work. In 2019, he was awarded the Best Young Researcher at the University of Granada. Currently, he is the editor of several international journals. His research is based on the development of new granular technologies within the wastewater area, as well as the development of energy production technologies through direct electricity production or by obtaining hydrogen and ammonia.