Reyes Sierra-Alvarez
Professor, Department of Chemical and Environmental Engineering
Director of the Environmental Engineering Graduate Program
(520) 626-2896

Dr. Reyes Sierra-Alvarez is a professor at the Department of Chemical and Environmental Engineering, University of Arizona (UA). Prior to joining the UA in 2001, Dr. Sierra was an Associate Professor of Environmental Engineering at the Wageningen University in The Netherlands (1993 – 2000) and an assistant professor at the UNESCO Water Research Institute in Delft, The Netherlands (1991 – 1993). Dr. Sierra holds a PhD degree in Environmental Engineering from the Wageningen University (1990) and an MS degree in Chemical Engineering from the University of Valladolid in Spain (1985). Prof. Sierra’s current research work focuses on the microbial transformation of metals and hazardous organic pollutants, biological wastewater treatment, and environmental implications of nanotechnology. Her work has led to the publication of over 130 peer-reviewed scientific papers.

Selected Citations: 

Carvajal-Arroyo, J.M., W.J. Sun, R. Sierra-Alvarez, and J.A. Field. 2013. Inhibition of anaerobic ammonium oxidizing (anammox) enrichment cultures by substrates, metabolites and common wastewater constituents. Chemosphere. 91:22-27.

Olivares, C., J.D. Liang, L. Abrell, R. Sierra-Alvarez, and J.A. Field. 2013. Pathways of reductive 2,4-dinitroanisole (DNAN) biotransformation in sludge. Biotechnology and Bioengineering. 110:1595-1604.

Otero-Gonzalez L, JA Field, R Sierra-Alvarez. 2014. Fate and long-term inhibitory impact of ZnO nanoparticles during high-rate anaerobic wastewater treatment. J Environ. Manage. 135:110-117.

Sun, W.J., A. Luna-Velasco, R. Sierra-Alvarez, and J.A. Field. 2013. Assessing protein oxidation by inorganic nanoparticles with enzyme-linked immunosorbent assay (ELISA). Biotechnology and Bioengineering. 110:694-701.

Gomez-Rivera, F., J.A. Field, D. Brown, and R. Sierra-Alvarez. 2012. Fate of cerium dioxide (CeO2) nanoparticles in municipal wastewater during activated sludge treatment. Bioresource Technology. 108:300-304.

Otero-Gonzalez L, R Sierra-Alvarez, S Boitano, JA Field. 2012. Application and validation of an impedance-based real time cell analyzer to measure the toxicity of nanoparticles impacting human bronchial epithelial cells. Environ. Sci. Technol. 46:10271-10278.

Research Themes: 
Biological treatment processes
Green manufacturing
Sustainable mining
Energy-water nexus
Renewable energy
Carbon cycling
Nutrient cycling
Public Health
Soil contaminants
Water contaminants
Urban Environment
Biogeochemical processes
Biogeochemical processes
Biological treatment process
Groundwater remediation
Public Health
Renewable energy and water treatment
Semiconductor manufacture
Sustainable mining
Water for manufacturing
Water reuse
Water treatment
Water-energy nexus

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