ROBERT L. SIEGRIST, Ph.D., P.E., BCEE
Professor, Environmental Science & Engineering
Colorado School of Mines, 206 Coolbaugh Hall, Golden, CO 80401-1887
Phone: 303.384.2158 Fax: 303.273.3413 Email: firstname.lastname@example.org
AREAS OF RESEARCH
In Situ Remediation Technologies for Contaminated Land
Site Remediation Research
At CSM, Dr. Siegrist has been directing a major research program to develop and evaluate in situ treatment technologies. This research has encompassed treatment processes and methods of subsurface delivery to achieve cost-effective in situ remediation of toxic chemicals in soil and ground water. A major focus area during the past five years has encompassed in situ chemical oxidation (ISCO) where chemical oxidants (e.g., hydrogen peroxide, potassium permanganate or ozone) are delivered into the subsurface by vertical or horizontal wells, sparge points, lance injectors, or hydraulic fracturing. Recent and ongoing efforts have been funded by the U.S. Strategic Environmental Research and Development Program, Environmental Security Technology Certification Program, and private industry. Research projects have involved laboratory bench- and pilot-scale experimentation, field studies, and modeling studies. Research has addressed the 1) oxidation kinetics for destruction of organic chemicals, 2) oxidation effects on degradation kinetics of nonaqueous phase liquids, 3) oxidant mass transport processes and matrix effects in soil and ground water systems, 4) redox effects on mobility of redox sensitive and exchangeable metals, and 5) the coupling of ISCO with other remediation technologies (e.g., surfactant flushing or bioremediation). Experimental, modeling and technical support has also been provided for field demonstrations at sites in Ohio, California, and Florida, and a reference book on the subject was published by Battelle Press in 2001. Dr. Siegrist is lead author on a new book that will be published by Springer in 2010.
Apart from the science and engineering of remediation technologies as just described, remediation of contaminated sites requires effective characterization and assessment to quantify the risks and determine the extent of cleanup required. Recent and ongoing efforts have been funded by the U.S. Strategic Environmental Research and Development Project, U.S. EPA, and private industry. Research has included laboratory and field experimentation combined with modeling during: 1) development and evaluation of soil and ground water sampling and analysis methods; 2) measurement and modeling of contaminant transport fluxes; and 3) analysis of measurement and modeling error and uncertainty.
Journal Publications Related to Site Remediation Research (past 5 years)
Tsitonaki, A., B. Petri, M. Crimi, H. Mosbaek, R.L. Siegrist, P.L. Bjerg. 2009. In Situ Chemical Oxidation of Contaminated Soil and Groundwater using Persulfate: A Review. Critical Reviews in Environmental Science and Technology. Accepted and in press.
Oesterreich, R.C., R.L. Siegrist. 2009. Quantifying Volatile Organic Compounds in Porous Media: Effects of Sampling Method Attributes, Contaminant Characteristics and Environmental Conditions. Environmental Science & Technology, 43(8):2891-2898.
Heiderscheidt, J., M.L. Crimi, R.L. Siegrist, M. Singletary. 2008. Optimization of Full-scale Permanganate ISCO System Operation: Laboratory and Numerical Studies. J. Ground Water Monitoring and Remediation, Fall 2008, 28(4):72-84.
Heiderscheidt, J., R.L. Siegrist, T.H. Illangasekare. 2008. Intermediate-Scale 2D Experimental Investigation of In Situ Chemical Oxidation using Potassium Permanganate for Remediation of Complex DNAPL Source Zones. J. Contaminant Hydrology, 102(1-2):3-16.
Petri, B., R.L. Siegrist, M.L. Crimi (2008). Effects of Groundwater Velocity and Permanganate Concentration on DNAPL Mass Depletion Rates During In Situ Oxidation. J. Environmental Engineering, 134(1):1-13.
Sahl, J.W., J. Munakata-Marr, M.L. Crimi, R.L. Siegrist. 2007. Coupling Permanganate Oxidation with Microbial Dechlorination of Tetrachloroethene. Water Environment Research, 79(1):5-12.
Siegrist, R.L., K.S. Lowe, M.L. Crimi, M.A. Urynowicz. 2006. Quantifying PCE and TCE in DNAPL Source Zones: Effects of Sampling Methods Used for Intact Cores at Varied Contaminant Levels and Media Temperatures. J. Ground Water Monitoring and Remediation, 26(2):114–124.
Crimi M.L., R.L. Siegrist. 2005. Factors Affecting Effectiveness and Efficiency of DNAPL Destruction Using Potassium Permanganate and Catalyzed Hydrogen Peroxide. J. Environmental Engineering, 131(12):1716-1723.
Urynowicz, M.A., R.L. Siegrist. 2005. Interphase Mass Transfer during Chemical Oxidation of TCE DNAPL in an Aqueous System. J. Contaminant Hydrology, 80(3-4):93-106.
Ross, C., L.C. Murdoch, D.L. Freedman, R.L. Siegrist. 2005. Characteristics of Potassium Permanganate Encapsulated in Polymer. J. Environmental Engineering, 131(8):1203-1211.
Siegrist, R.L., J.E. McCray, K.S. Lowe. 2004. Wastewater Infiltration into Soil and the Effects of Infiltrative Surface Architecture. Small Flows J., 5(1):29-39.
Crimi, M.L., R.L. Siegrist. 2004. Association of Cadmium with MnO2 Particles Generated During Permanganate Oxidation. Water Research, 38(4):887-894.
Crimi, M.L., R.L. Siegrist. 2004. Impact of Reaction Conditions on MnO2 Genesis During Permanganate Oxidation. J. Environmental Engineering, 130(5):562-572.
Areas of Research and Teaching
In Situ Remediation Technologies for Contaminated Land
Onsite Water Reclamation and Reuse
Recent and Ongoing Grants and Contracts
Courses Developed and/or Delivered at CSM
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