He worked for the US Army Corp of Engineers Engineering Research and Development Center on the development, design, and implementation of groundwater treatment technologies. His research interests are the development of technologies for the remediation of contaminated media and the development of non-traditional feedstocks for producing biofuels. Dr. Hernandez has over 80 technical presentations at state and national conferences and over 15 peer reviewed publications. He is the principal investigator on projects funded by the Department of Energy, the Environmental Protection Agency, and private industries.