His research is focused on the control and operation of wastewater treatment and reuse systems, integrated membrane systems for the biological elimination of nutrients and emerging pollutants, and the development and application of decision support systems in the environmental field, especially in planning and operation of urban water cycle infrastructures. He is the author of more than a hundred publications in SCI journals (with a current H index of 36), of several books and divulgation articles, and has presented a multitude of communications at national and international conferences. He has been the principal investigator or member of the research team of more than 50 competitive national and international R+D+i projects (public, public-private), several development cooperation projects, and some collaboration contracts with companies. He currently participates in international (edicitnet, hydrousa, iWay, multisource) and national (antares, Rita) research projects. He has supervised 19 doctoral theses.