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Department of Civil and Environmental Engineering
Ph.D. Civil and Environmental Engineering, Princeton University, 2000
Dr. Brown conducts experimental and numerical research in Environmental Biotechnology. His research interests include effects of surfaces on bacterial metabolic activity; fate and transport of microorganisms through both saturated and unsaturated porous media; and biodegradation kinetics. He also conducts research on complex non-aqueous phase liquids, with a focus on coal tar. His research has been funded by the National Science Foundation, the Electric Power Research Institute, and the Pennsylvania Infrastructure Technology Alliance. Dr. Brown has held the Frank Hook and P.C. Rossin Assistant Professorships and received the Lehigh Engineering Ingenuity Award.
Dr. Brown teaches courses in Environmental Processes, Environmental Risk Assessment, and Environmental Biotechnology. He also teaches the senior environmental capstone design course. Publications (past 3 years) Abramson, A. and Brown, D.G. 2007. "Influence of solution ionic strength on the collision efficiency distribution and predicted transport distance of a Sphingomonas sp. flowing through porous media." Water Research, 41(19):4435-4445. Brown, D.G. 2007. "Relationship between micellar and hemi-micellar processes and the bioavailability of surfactant-solubilized hydrophobic organic compounds." Environ. Sci. Technol., 41(4):1194-1199. Brown, D.G. 2007. "Adaptable method for estimation of parameters describing bacterial transport through porous media from column effluent data: Optimization based on data quality and quantity." Colloids and Surfaces A: Physichemical and Engineering Aspects, 296(1-3):19-28. X. Li, Brown, D.G., Zhang, W. 2007. "Zero-valent iron nanoparticles for stabilization of biosolids." Journal of Nanoparticle Research, 9(2):233-243. Hong, Y. and Brown, D.G. 2006. "Cell surface acid-base properties of Escherichia coli and Bacillus brevis and variation as a function of growth phase, nitrogen source and C:N ratio." Colloids and Surfaces B: Biointerfaces, 50(2):112-119. Brown, D.G., Gupta, L, Kim, T.-H., Moo-Young, H.K., and Coleman, A.J. 2006 . "Comparative assessment of coal tars obtained from 10 former manufactured gas plant sites in the eastern United States." Chemosphere, 65(9):1562-1569. Brown, D.G. and Abramson, A. 2006. "Collision efficiency distribution of a bacterial suspension flowing through porous media and implications for field-scale transport." Water Res., 40(8):1591-1598. Brown, D.G. and Abramson, A. 2007. Erratum to "Collision efficiency distribution of a bacterial suspension flowing through porous media and implications for field-scale transport." [Water Res., 40(8):1591-1598], Water Res., 41(3):719. Brown, D.G. and Jaffé, P.R. 2006. "Effects of nonionic surfactants on the cell surface hydrophobicity and apparent Hamaker constant of a Sphingomonas sp." Environ. Sci. Technol., 40(1):195-201. Brown, D.G. and Al Nuaimi, K.S. 2005. "Nonionic surfactant sorption onto the bacterial cell surface: A multi-interaction isotherm." Langmuir, 21(24):11368-11372. Brown, D.G., Gupta, L., Moo-Young, H.K. and Coleman, A. 2005. "Raoult's law-based method for determination of coal tar average molecular weight." Environmental Toxicology & Chemistry. 24(8):1886-1892. Brown, D.G., Komlos, J. and Jaffé, P.R. 2005. "Simultaneous utilization of acetate and hydrogen by Geobacter sulfurreducens and implications for use of hydrogen as an indicator of redox conditions." Environ. Sci. Technol., 39(9):3069-3076.
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