114 Shideler Hall
Ph.D. (1997) University of Michigan
23 Culler Hall
The overall objective of my research program is to understand how and why microorganisms and geological media (rocks, minerals, water) interact and how we can study their mutual interactions to understand a range of biogeochemical processes on Earth and beyond.. My current research is focused on three broad areas: 1) mineral-microbe interactions; 2) life in various extreme environments (saline lakes on Tibetan Plateau, hot springs, and deep continental subsurface) and implications for life on Mars; 3) environmental bioremediation of heavy metals and radionuclides as well as organics such as TCE and BTEX. I employ an umber of geological, mineralogical, geochemical, and microbiological techniques to study these processes including microscopy, spectroscopy, aqueous geochemistry, molecular microbiology and cultivation, and modeling. Most of my research projects are funded by NSF, DOE, DOD, ACS-PRF, and other internal (Miami University) and foreign (international) sources.
Possible thesis/dissertation topics:
Clay mineral - microbe - organic matter interactions.
Microbial remediation of heavy metals Cr, Tc, U, and As.
Biogeochemical cycling of C and N in hot springs.
Degradation of TCE and BTEX coupled with microbial reduction of iron and other oxidants.
Coupled diffusion and reaction processes of TCE: impact on dilute groundwater plume.
Updated current/recent graduate research:
Zhang, Jing (Ph.D., 2013) Microbe - clay mineral - organic matter - metal interactions.
Glasser, Paul (M.S., 2013) Kinetics and mechanisms of Cr6+ reduction of structural Fe(II) in clay minerals.
Huang, Quiyuan (Ph.D. in progress) Carbon and Nitrogen Biogeochemistry in Terrestrial Hot Springs.
Bishop, Mike (Ph.D. in progress) Bioremediation of heavy metals at DOE contaminated sites.
Singh, Rajesh (Ph.D. in progress) Bioremediation of heavy metals Cr and Co with methanogens and degradation of organic contaminants with nitrate and metal reducing bacteria.
Zhao, Linduo (Ph.D. in progress) Remediation of groundwater nitrate coupled with oxidation of Fe(II) in clay minerals.
Zhang, Li (Ph.D. in progress) Synthesis of biogenic nanoparticles and their industry applications.
Srivastava. Shreya (Ph.D. in progress) Microbial response and feedback to climate change.
Briggs. B.R., Brodie, E.L., Tom, L.M., Dong, H., Jiang, H., Huang, Q., Wang, S., House, S., Wu, G., Huang, L., Hedlund, B.P., and Zhang, C.L. (2013) Microbial distribution across geochemical and temporal conditions in the hot springs of Tengchong, Yunnan Province, China. Environmental Microbiology.
Zhao, L., Dong, H., Kukkadapu, R., Agrawal, A. Liu, D., and Zhang, J. (2013) Biological oxidation of Fe(II) in microbially reduced nontronite coupled with nitrate reduction by Pseudogulbenkiania sp. Strain 2002. Geochimica et Cosmochimica Acta, 119, 231-247.
Zhang, J., Dong, H., Liu, D., and Agrawal, A. (2013) Microbial reduction of Fe(III) in smectite minerals by thermophilic methanogen Methanothermobacter Thermautotrophicus. Geochimica et Cosmochimica Acta, 106, 203-215.
Schaefer, C.E., Towne, R.M., Lippincott, D.R., Lazouskaya, V., Fischer, T.B., Bishop, M.E. and Dong, H. (2013) Coupled diffusion and abiotic reaction of trichlorethene in minimally disturbed rock matrices. Environmental Science and Technology, 47, 4291-4298.
Bishop, M.E., Dong, H., Kukkadapu, R.K., Edelmann, R.E. (2011) Bioreduction of Fe-bearing clay minerals and their reactivity toward pertechnetate (Tc-99). Geochimica et Cosmochimica Acta, 75, 5229-5246.
Collaborate Research: Nitrate Reduction by Redox-modified Fe-bearing Clay Minerals, Nsf-EAR 1148039, Dong, PI, Miami Budget $187,778, 2012-2015
PIRE: Toward a holistic and global understanding of hot spring ecosystems: A US-China based international collaboration. NSF, PI at Miami , the Miami budget: NSF OISE #0968421, $460,413 (plus all travel costs through the University of Nevada in Las Vegas), 8/15/2010-8/14/2015.
Reactivity of iron-bearing phyllosilicates with uranium and chromium thorough redox transition zones. U.S. Department of Energy Office of Biological and Environmental Research - Environmental Remediation Science Program, DE-SC0005333. Sole PI at Miami, the Miami budget: $318,838, 1/1/2010 - 12/31/2014.
Coupled diffusion and reaction processes in rock matrices: impact on dilute groundwater plumes. Department of Defense (SERDP), Miami budget: $284,803 + $50,000, 6/1/2009 - 5/31/2014. This is a collaborative project with Shaw Environmental.
GLG 121 - Environmental Geology
GLG 211 - Chemistry of Earth Systems
GLG 402/502 - Geomicrobiology
GLG 496/596 - Isotopes in Environmental Processes
GLG 602 - Microbes and Geology
For complete descriptions of courses please click here.
Please click here to see Dr. Dong's curriculum vita.