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Thomas Dempster

Thomas Dempster

Associate Research Professor, Arizona Center for Algae Technology and Innovation, School of Sustainable Engineering and the Built Environment, Ira A. Fulton Schools of Engineering

Thomas.Dempster@asu.edu

480-727-5415

Arizona Center for Algae Technology and Innovation
Arizona State University, Polytechnic campus
Mesa, AZ 85212

Titles

  • Senior Sustainability Scientist, Julie Ann Wrigley Global Institute of Sustainability
  • Associate Research Professor, Arizona Center for Algae Technology and Innovation, School of Sustainable Engineering and the Built Environment, Ira A. Fulton Schools of Engineering

Biography

Dr. Dempster began his algae research career as an undergraduate at Arizona State University in 1989 working on the Aquatic Species Program. He completed his BS in Biology, MS in Botany and PhD in Plant Biology from Arizona State University while studying a variety of algae-related topics primarily related to algal biofuel production, drinking water quality and wastewater bioremediation.  Dr. Dempster currently works as a research professor focusing on strain selection and development, biomass production, algal biofuels and high-value products, and air and wastewater bioremediation at the Arizona Center for Algae Technology and Innovation (AzCATI) at Arizona State University. At AzCATI, he also serves as the laboratory manager, ASU Safety and Compliance Officer and AzCATI Recharge Center manager. Dr. Dempster also serves as the testbed site coordinator for the recent U.S. Department of Energy funded Algae Testbed Public-Private Partnership (ATP3). Current research projects include microalgal carbon sequestration at coal-fired power plants in Arizona and Florida (Salt River Project & Orlando Utilities Commission - DOE-NETL), production of bioactive molecules from microalgae for use in feeds and livestock health (Zivo biosciences, Inc.) and crop protection for large-scale cultivation using pulsed electric field technology (Diversified Technologies, Inc., Bedford, MA - USDA SBIR Phase II).

Education

  • Phd, Plant Biology, Arizona State University, 2006
  • MEd, Education Administration and Supervision, Arizona State University, 2000
  • MEd, Secondary Education, Arizona State University, 1995
  • MS, Botany, Arizona State University, 1994
  • BS, Biology, Arizona State University, 1990

Expertise

Journal Articles

2017

McGowan, J., E. P. Knoshaug, L. M. Laurens, T. A. Dempster, P. T. Pienkos, E. Wolfrum and V. L. Harmon. 2017. The Algae Testbed Public-Private Partnership (ATP3) framework; establishment of a national network of testbed sites to support sustainable algae production. Algal Research 25(Jul):168-177. DOI: 10.1016/j.algal.2017.05.017. (link )

Shakya, R., S. Adhikari, R. Mahadevan, S. R. Shanmugam, H. Nam, E. B. Hassan and T. A. Dempster. 2017. Influence of biochemical composition during hydrothermal liquefaction of algae on product yields and fuel properties. Bioresource Technology 243(Nov):1112-1120. DOI: 10.1016/j.biortech.2017.07.046. (link )

2015

Barbano, D., R. Diaz, L. Zhang, T. Sandrin, H. Gerken and T. Dempster. 2015. Rapid characterization of microalgae and microalgae mixtures using matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). PLoS One 10(8):e0135337. DOI: 10.1371/journal.pone.0135337. (link )

2014

Gharagozloo, P. E., J. L. Drewry, A. M. Collins, T. A. Dempster, C. Y. Choi and S. C. James. 2014. Analysis and modeling of Nannochloropsis growth in lab, greenhouse, and raceway experiments. Journal of Applied Phycology 26:2303-2314. DOI: 10.1007/s10811-014-0257-y. (link )

Laurens, L. M., S. Van Wychen, J. P. McAllister, S. Arrowsmith, T. Dempster, J. A. McGowen and P. T. Pienkos. 2014. Strain, biochemistry, and cultivation-dependent measurement variability of algal biomass composition. Analytical Biochemistry 452(May):86-95. DOI: 10.1016/j.ab.2014.02.009. (link )

2012

Laurens, L. M., T. A. Dempster, H. D. Jones, E. J. Wolfrum, S. Van Wychen, J. S. McAllister, M. Rencenberger, K. J. Parchert and L. M. Gloe. 2012. Algal biomass constituent analysis: Method uncertainties and investigation of the underlying measuring chemistries. Analytical Chemistry 84(4):1879-1887. DOI: 10.1021/ac202668c. (link )

2000

Hu, Q., T. Dempster, D. Lowry, M. Sommerfeld, P. Westerhoff, D. Bruce, M. Nguyen and L. Baker. 2000. Algal-related tastes and odors in Phoenix water supply: Preliminary report. Journal of Phycology 36(s3):32. DOI: 10.1046/j.1529-8817.1999.00001-96.x. (link )

1997

McGinnis, K. M., T. A. Dempster and M. R. Sommerfeld. 1997. Characterization of the growth and lipid content of the diatom Chaetoceros muelleri. Journal of Applied Phycology 9(1):19-24. DOI: 10.1023/A:1007972214462. (link )

Posters

2002

Esparza, M., Q. Hu, P. K. Westerhoff, M. R. Sommerfeld, L. A. Baker, T. Dempster, A. Rodriguez, S. Dawson, K. Hintze, M. Cummings and M. Masles. 2002. Occurrence and treatment of algae-related taste and odor metabolites in Arizona reservoirs and urban canals. Poster presented at January 17, 2002, CAP LTER Fourth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ.

Hu, Q., M. R. Sommerfeld, T. Dempster, P. K. Westerhoff, L. A. Baker and M. Nguyen. 2002. Influence of growth conditions on production and release of the taste and odor compound geosmin by a cyanobacterium isolated from the Phoenix water supply system. Poster presented at January 17, 2002, CAP LTER Fourth Annual Poster Symposium, Center for Environmental Studies, Arizona State University, Tempe, AZ. (link )

Presentations

2001

Westerhoff, P. K., D. Bruce, M. Nguyen, M. R. Sommerfeld, T. Dempster, Q. Hu, L. Lowry and L. Baker. 2001. Production sources of algal metabolites (MIB and geosmin) in Arizona reservoirs, rivers, and canals. Presented at June 2001, AWWA Conference, Washington, DC.

2000

Bruce, D., P. K. Westerhoff, M. R. Sommerfeld, L. A. Baker, M. Nguyen, H. Qiang, T. Dempster and E. Lowry. 2000. Occurrence and potential causes of Geosmin and MIB in Arizona drinking waters. Presented at May 2000, AWPCA Annual Conference, Mesa, AZ.

Conference Papers

2000

Baker, L. A., P. K. Westerhoff, D. Bruce, M. R. Sommerfeld, T. Dempster, Q. Hu and D. Lowry. 2000. Multiple barrier approach for controlling taste and odor in the Phoenix water supply. Pp. 11 Proceedings of the November 2000 AWWA Water Quality Technology Conference. 2000 AWWA Water Quality Technology Conference. Salt Lake City, Utah.

Reports

2012

Timlin, J. A., H. D. Jones, T. A. Reichardt, D. T. Hanson, A. J. Powell, S. C. James, P. E. Gharagozloo, A. M. Collins, A. Ruffing, K. Parchert, B. P. Dwyer, O. F. Garcia, T. A. Dempster, J. A. McGowen, C. Trahan, J. Roesgen, S. Lopez-Nieves, V. Janardhanam, V. Boriah, A. August and K. Samson. 2012. From Benchtop to Raceway: Spectroscopic Signatures of Dynamic Biological Processes in Algal Communities. Sandia National Laboraties. SAND2012-8195. (link )