Prof. Dr. Manuel Soto earned, from the Universidade de Santiago de Compostela, a PhD in Chemical Engineering (1990). Prof. Dr. Manuel Soto is an Editorial Board Member for Journal Environments in MDPI and has been a professor in the Department of  Chemistry (former Department of Physical Chemistry and Chemical Engineering), University of A Coruña (Galiza, Spain) since December 1991. Research topics mainly include: wastewater treatment, constructed wetlands, anaerobic digestion, wastewater, composting, water science, chemical engineering, waste management, and environmental science.