Dr. Eighmy has research interests in element speciation, surface analysis, environmental chemistry of leaching behavior, residue characterization, use of recycled materials in highway applications, chemical stabilization, reactive barriers, innovative and alternative treatment technologies, and technovation.

Selected Research Projects

Development of Application-Specific Source Term, Fate and Transport Models and Approaches for Recycled Materials Use in the Highway Environment

This project is designed to provide regulators with better tools to assess the risk of use of recycled materials in the highway environment. Dr. Eighmy collaborates with Dr. Kevin Gardner and Ms. Defne Apul, a Ph.D. student, on this FHWA/RMRC-funded project.

Use of Apatite-Based Permeable Reactive Barriers in Recycled Materials Applications in Highways

Dr. Eighmy is interested in the use of phosphorite (naturally occurring apatite minerals) as permeable reactive barriers in highway applications. This project, funded by the FHWA/RMRC, is geared towards looking at the technology of reactive barrier to capture inorganic contaminants that may leach from roads made with recycled materials. He collaborates with Ms. Carolina Gonzalez (a Masters student) and with colleagues Dr. Clinton Willson at LSU and Dr. Takayuki Shimaoka of Kyushu University on this work.

Sustainable and Advanced Materials for Road Infrastructures

Dr. Eighmy and Dr. Gardner are collaborating with colleagues at the Laboratoire Central des Ponts et Chausees, the Danish Road Institute, the Netherlands Energy Research Foundation and the Danish Hydraulics Institute to examine state of the art practices in beneficial use and environmental impact assessment from recycled materials used in highways. Eighmy and Gardner represent the U.S. in this European Union Fifth Framework project.

Anacostia River Field Demonstration of Reactive Barrier Technology

Dr. Eighmy is working with his colleagues Dr. Jeff Melton (the project PI) and Mr. Brad Crannell on the design, deployment and evaluation of impermeable phosphorite reactive barrier caps for a sediment capping demonstration project on the Anacostia River. The project, awarded by the USEPA via LSU, is part of an innovative capping demonstration project underway by LSU.

Characterization of Microfracture Surfaces at the BBC Study Site

Dr. Eighmy, Ms. Jeannie Spear and Ms. Julia Case are working with colleagues in the BBC (Dr. Nancy Kinner, Dr. Wally Bothner) to characterize the geology and surface chemistry of microfracture surfaces in competent bedrock in the Kittery Formation. The location is the BBC Study site at the fomer Pease Airforce Base in Newington, NH (now the Pease International Tradeport), a site contaminated by TCE.

Pilot-Scale Reactive Barrier Technologies for Containment of Metal-Contaminated Sediments and Dredged Materials

Dr. Eighmy is working with Mr. Brad Crannell and colleagues at LSU (Dr. Clinton Willson, Dr. Danny Reible, Dr. Frank Cartledge, Dr. Les Butler) to test at the pilot scale the use of phosporite as impermeable reactive barrier caps for contaminated sediments from various locations. The study is occurring at the Jackson Estuarine laboratory. The work is funded by CICEET.

Selected Publications (click on the citation to view an Adobe Acrobat (pdf) version of the document)

Apul, D.S., K.H. Gardner, T.T. Eighmy (2002) A probabilistic source assessment for leaching from secondary materials in highway applications. Clean Tech. Environ. Policy 5: 120-127.

Sanchez, F., W. Massry, T.T. Eighmy, & D.S. Kosson (2003) Multi-regime transport model for leaching behavior of heterogeneous porous materials. Waste Manage. 23(3): 219-224.

Shimaoka, T., K. Miyawaki, M. Hanashima, T. Yoshida, I. Ito, T. Uchida, K.H. Gardner, & T.T. Eighmy (2002) Mechanisms for the aging-induced reduction of lead solubility in scrubber residues from municipal waste combustion. Waste Manage. Res. 20(1): 90-98. (no pdf available)

Meima, J.A., R.D. van der Weijden, T.T. Eighmy, & R.N.J. Comans (2002) Carbonation processes in municipal solid waste incinerator bottom ash and their effect on the leaching of copper and molybdenum. Appl. Geochem. 17(12): 1503-1513.

Eusden, J.D. Jr., L. Gallagher, T.T. Eighmy, B.S. Crannell, J.R. Krzanowski, L.G. Butler, F.K. Cartledge, E. Emery, E.L. Shaw, & C.A. Francis (2002) Petrographic and spectroscopic characterization of phosphate- stabilized mine tailings from Leadville, Colorado. Waste Manage. 22(2): 117-135.

Crannell, B.S., T.T. Eighmy, J.E. Krzanowski, J. D. Eusden, Jr., E.L. Shaw, & C.A. Francis (2000) Heavy metal stabilization in municipal solid waste combustion bottom ash using soluble phosphate. Waste Manage. 20: 135-148.

Eighmy, T.T., A.E. Kinner, E.L. Shaw, J. D. Eusden, Jr., & C.A. Francis (1999) Hydroxlapatite (Ca5(PO4)3OH) characterized by XPS: An environmentally important secondary mineral. Surface Science Spectra 6:193-201.

Benoit, J., T.T. Eighmy, & B.S. Crannell (1999) Landfilling ash-sludge mixtures. J. Geotech. Eng. 125 (10): 877-888.

Eusden, J. D. Jr., T.T. Eighmy, K. Hockert, E. Holland, & K. Marsella (1999) Petrogenesis of municipal solid waste combustion bottom ash. Appl. Geochem. 14(8): 25-43.

Eighmy, T.T., B.S. Crannell, J.E. Krzanowski, L.G. Butler, F.K. Cartledge, E.F. Emery, & J.D. Eusden, Jr. (1998) Characterization and phosphate stabilization of dusts from the vitrification of MSW combustion residues. Waste Manage. 18: 513-524.

Eighmy, T.T., E.L. Shaw, J. D. Eusden, Jr., & C.A. Francis (1998) Environmentally important phosphate minerals (I.) Chloropyromorphite (Pb5(PO4)3Cl) by XPS. Surface Science Spectra 5:122-129.

Krzanowski, J.E., T.T. Eighmy, & J.D. Eusden Jr. (1998) An analytical electron microscopy investigation of municipal solid waste incineration bottom ash. J. Matl. Res. 13: 28-36.

Eighmy, T.T., B.S. Crannell, L.G. Butler, F.K. Cartledge, E.F. Emery, D. Oblas, J.E. Krzanowski, J.D. Eusden , Jr., E.L. Shaw, & C.A. Francis (1997) Heavy metal stabilization in municipal solid waste combustion dry scrubber residue using soluble phosphate. Environ. Sci. Technol. 31: 3330-3338.

Comans, R.N.J., T.T. Eighmy, & E.L. Shaw (1997) Reference spectra for environmentally-important secondary minerals: ettringite (Ca6Al2(SO4)3(OH)12 C26H20) by XPS. Surface Science Spectra 4: 150-156.

Sakai. S., S. Sawell, J. Chandler, T.T. Eighmy, D.S. Kosson, J. Hartlen, O. Hjelmar, H.A. van der Sloot, & J. Vehlow (1997) World trends in municipal solid waste management. Waste Manage. 16: 341-350.

Eighmy, T.T., & D.S. Kosson (1997) U.S.A. national overview on waste management. Waste Manage. 16: 361-366.

Kosson, D.S., H.A. van der Sloot, & T.T. Eighmy (1996) An approach for estimation of contaminant release during utilization and disposal of municipal waste combustion residues. J. Haz. Matl. 47: 43-75.

Eighmy, T.T., J.D. Eusden Jr., J.E. Krzanowski, D. Domingo, D. Stämpfli, J.R. Martin & P.M. Erickson (1995) Comprehensive approach towards understanding element speciation and leaching behavior in municipal solid waste electrostatic precipitator ash. Environ. Sci. Technol. 29: 629-646.

Sawell, S E; A.J. Chandler; T.T. Eighmy; J. Hartlén; O. Hjelmar; D. Kosson; H.A. van Der Sloot; & J. Vehlow (1995) An international perspective on the characterization and management of residues from MSW incinerators. Biomass Bioenergy 9(1-5): 377-386.

Eighmy, T.T., S.K. Spanos, J. Fenstermacher, & M.R. Collins (1992) Microbial populations, activities and carbon metabolism in municipal slow sand filters. Water Res. 26:1319-1328.

Eighmy, T.T., L.S. Jahnke, & W.R. Fagerberg (1990) Photosynthetic characteristics of Elodea nuttallii grown under photorespiratory conditions. III: Evidence for bicarbonate active transport. Plant, Cell & Environment 14:157-165. (no pdf available)

Eighmy, T.T., & P.L. Bishop (1988) Distribution and role of bacterial nitrifying populations in nitrogen removal in aquatic treatment systems. Water Research 23: 947-955.

Eighmy, T.T., & P.L. Bishop (1985) Effect of reactor turbulence on the binding protein-mediated aspartate transport system in thin wastewater biofilms. Appl. Environ. Microbiol. 50: 120-124.

Eighmy, T.T., & P.L. Bishop (1984) Multiplicity of aspartate transport in thin wastewater biofilms. Appl. Environ. Microbiol. 48: 1151-1158.

Eighmy, T.T., D. Maratea, & P.L. Bishop (1983) Electron microscopic examination of wastewater biofilm formation and structural components. Appl. Environ. Microbiol. 45: 1921-1931.

Selected Recent Grants

"Use of Apatite-Based Permeable Reactive Barriers in Recycled Materials Applications in Highways" (RMRC/FHWA, $55,331, 2003-2005).

"Materials for Pavements" (European Commission, $110,000, 2002-2004, cost sharing project, with Dr. Gardner).

"Anacostia River Field Demonstration of Reactive Barrier Technology" (U.S. EPA via Louisiana State University, $83,327, 2002-2004, Dr. Melton is the PI, with Brad Crannell).

"Fracture Surfaces (Part of the BBC Project)" (U.S. EPA, $69,776, 2001-2003, Dr. Kinner is the PI with many participating PIs).

"Recycled Materials Conference" (National Science Foundation, $19,960, 2001-2002).

"Pilot-Scale Reactive Barrier Technologies for Containment of Metal-Contaminated Sediments and Dredged Materials" (NOAA/CICEET, $378,899, 2001-2003, with Dr. Eighmy, Dr. Butler, Dr. Cartledge, Dr. Willson, Dr. Reible as co-PIs).

 

Awards

Dr. Eighmy received the University of New Hampshire's Excellence in Research Award in 1997.

Current Graduate Students

Dr. Eighmy currently co-advises Ms. Defne Apul, a doctoral student and advises Ms. Carolina Gonzalez, a Masters student