Curriculum Vitae

Annual Report To The Provost
Pedro J.J. Alvarez
Professor
George R. Brown Chair of Civil and Environmental Engineering
Department Chair
alvarez@rice.edu
	B. Eng Civil Engineering (1982)McGill University
	M.S.E. Environmental Engineering (1989)University of Michigan
	Ph.D. Environmental Engineering (1992)University of Michigan
	Certification Hazardous Waste Management (1988)University of California
Primary Department
	Department of Civil and Environmental Engineering
Affiliated Department
	Center for Biological and Environmental Nanotechnology
Research Areas
	Professor Alvarez’s research focuses on bioremediation of contaminated aquifers, fate and transport of hazardous substances, permeable reactive barriers, microbial-plant interactions, and environmental implications and applications of nanotechnology.
Teaching Areas
	Applications and implications of biological treatment processes, principles of environmental engineering
Publications
	Books
		Alvarez, P.J.J. and W. Illman “Bioremediation and Natural Attenuation of Groundwater Contaminants: Process Fundamentals and Mathematical Models.”   (2006): 608.
		Loucks, D.P., P.J. Alvarez, et al. “CLEANER and NSF’s Environmental Observatories.”  National Academies Press, National Research Council of the Academies (2006).
	Refereed Articles
		Fang, J., D.Y. Lyon, M. Wiesner, J. Dong, and P.J.J. Alvarez “Effect of a fullerene water suspension on bacterial phospholipids and membrane phase behavior.”  Environ. Sci. Technol. (2006).(Submitted)
		Wiesner, M.R., G.V. Lowry, P.J.J. Alvarez, D. Dionysiou, and P. Biswas “Assessing the risks of manufactured nanomaterials.”  Environ. Sci. Technol., 40(14) (2006): 4337-4445.
		DaSilva M.L.B., R.L. Johnson, and P.J.J. Alvarez “Microbial characterization of a subsurface undergoing treatment with a permeable reactive iron barrier.”  J. Environ. Engrg. (2006).(Submitted)
		DaSilva M.L.B., R.C. Daprato, D.E. Gomez, J.B. Hughes, C.H. Ward, and P.J.J. Alvarez “Comparison of Bioaugmentation and Biostimulation for the Enhancement of DNAPL Source Zone Bioremediation.”  Water Environment Research (2006).(In Press)
		O. Nut M., K.N. Heck, P.J.J. Alvarez, and M.S. Wong “Improved Pd-on-Au-Bimetallic Nanoparticle Catalysts for Aqueous-Phase Trichloroethene Hydrodechlorination.”  Appl. Catal. B. Environ.(In Press)
		Lyon, D.Y., A. Thill, J. Rose, and P.J.J. Alvarez “Ecotoxicological Impacts of Nanomaterials.”  Environmental Nanotechnology (2006).(In Press)
		Melendez-Estrada J., M.A. Amezcua-Allieri, P.J.J. Alvarez and R. Rodriguez-Vazquez “Phenanthrene removal by Penicillium frquentans grown on a solid state culture: effect of oxygen concentration.”  Environmental Technology, 27 (2006).
		Lyon, D.Y., L.K. Adams, J.C. Falkner, and P.J.J. Alvarez “Antibacterial Activity of Fullerene Water Suspensions: Effect of Preparation Method and Particle Size.”  Environ. Sci. Technol., 40(14) (2006): 4360-4366.
		DaSilva, M.L.B. and P.J.J. Alvarez “Quantification of Anaerobic Benzene Degraders Using Real-Time PCR.”  Environ. Microbiol. (2006).(In Press)
		Xiaoshan, Zhu, Lin Zhu, Yan Li, Zhenghua Duan, Wei Chen and Pedro Alvarez “Develoopmental Toxicity in Zebrafish Embryos After Exposure to Manufactured Nanomaterials: Buckminsterfullerene Aggregates (nC60) and Fullerol.”  Environ. Toxicol. Chem. (2006).(Submitted)
		Adams, L.K., D.Y. Lyon and P.J.J. Alvarez “Comparative toxicity of Nano-Scale TiO2, SiO2 and ZnO Water Suspensions.”  Wat. Res. (2006).(In Press)
		Rysz, M. and P.J.J. Alvarez “Transport of Antibiotic Resistant Bacteria and Resistance Carrying Plasmids through Porous Media.”  Wat. Sci. Technol. (2006).(Submitted)
		Capiro, N.L., B.P. Stafford, W.G. Rixey, P.J.J. Alvarez, and P.B. Bedient “Fuel-Grade Ethanol Transport at the Water Table Interface in a Pilot-Scale Aquifer Tank.”  Water Research (2006).(Submitted)
		DaSilva, M.L.B., Kamath, R., and P.J.J. Alvarez “Effect of simulated rhizodeposition on the relative abundance of polynuclear aromatic hydrocarbon catabolic genes in a contaminated soil..”  Environ. Toxicol. Chem., 25(2) (2006): 386-391.
		Vazquez-Morilla A., M. Vaca-Mier and P.J.J. Alvarez “Biological activation of ferric oxide for reduction of hexavalent chromium in presence of different anions.”  Eur. J. Soil Biol., 42 (2006): 99-106.
		Illman, W. and P.J.J. Alvarez “Performance assessment of bioremediation and natural attenuation.”  Crit. Rev. Environ. Sci. Technol. (2006).(In Revision)
		Dominguez, R., M.L.B. DaSilva, T.M. McGuire, D.A. Adamson, C.J. Newell, B.S. Yare and P.J.J. Alvarez “Source zone bioremediation of chlorobenzene DNAPLs: performance assessment using real time quantitative polymerase chain reaction.”  Wat. Res. (2006).(Submitted)
Presentations
	Conference Committee Member
		“Nanotechnology and environmental engineering”  Universidad Autsnoma Metropolitana, Mexico City, Mexico.  (June 2006)
	Lectures
		Invited Lecturer.  ”Biodegradation of organic compounds”  Gordon Conference, New Hampshire.  (June 2006)
		Invited Lecturer.  ”Fullerene ecotoxicology”  University of Michigan, Ann Arbor, MI.  (April 2006)
		Invited Lecturer.  ”Environmental implications and applications of nanotechnology”  Universidad de Carabobo, Valencia, Venezuela.  (February 2006)
		Invited Lecturer.  ”Fitorremediacion”  Universidad Nacional de Colombia, Medellin, Colombia.  (May 2006)
		Invited Lecturer.  ”Fullerene micro-ecotoxicology”  Nankai University, Tianjin, China.  (July 2006)
		Invited Lecturer.  ”Principles and applications of bioremediation”  Universidad de Los Andes, Bogota, Colombia.  (August 2006)
		Invited Lecturer.  ”Environmental nanotechnology”  University of Texas El Paso, El Paso, Texas.  (September 2006)
		Invited Lecturer.  ”Groundwater impacts of ethanol”  Baker Institute, Rice University, Houston, TX.  (September 2006)
		Invited Lecturer.  ”Microbial Impacts of Fuel ethanol”  University of Massachusetts, Amherst, MA.  (October 2006)
		Invited Lecturer.  ”Environmental nanotechnology”  Technical University of Denmark, Copenhagen, Denmark.  (November 2006)
		Invited Lecturer.  ”Fullerene-bacterial interactions”  EPA/ORD, Washington, DC.  (November 2006)
		Invited Lecturer.  ”Nanotecnologia ambiental”  Universidad Centroamericana, Managua, Nicaragua.  (December 2006)
	Session Chair
		“22nd Annual International Conference on Soils, Sediments and Water – Oxygenates Session” Amherst, MA.  (October 2006)
Editorial Positions
	Associate Editor, Journal of Environmental Engineering.  (2006-).
	Other, European Journal of Soil Biology.  (2006-).
Theses
	Gomez, Diego, M.S.  ”Simulation of Effects of Ethanol on Benzene Plume Length Using RT3D with a General Substrate Interaction Module.”  (2006).(Thesis or Dissertation Director)
	Mathieu, Jacques, PhD.  ”Microbial Degradation Pathways of 7-Ketocholesterol.”  (2006).(Thesis or Dissertation Director)
	Rysz, Michal, PhD.  ”Groundwater Transport, reservoir amplification, and natural attenuation of antibiotic resistance vectors.”  (2006).(Thesis or Dissertation Director)
	Lyon, Delina, PhD.  ”Bacteria and Buckeyballs: microbial response to fullerene water suspensions and other nanomaterials.”  (2006).(Thesis or Dissertation Director)
	Rosa Dominguez-Faus, MS.  ”Source Zone Bioremediation of Chlorobenzene DNAPLs: Performance Assessment using quantitative Real Time Polymerase Chain Reaction (qRT-PCR).”  (2006).(Thesis or Dissertation Director)
	Dominquez- Faus, Rosa, PhD.  ”Biomarkers for Natural Attenuation of Polycyclic Aromatic Hydrocarbons (PAHs) Assessment.”  (2006).(Thesis or Dissertation Director)
	Vega, Leticia, PhD.  ”Reductions in DNAPL Longevity Through Biological Flux Enhancement.”  (2006).(Thesis or Dissertation Director)
	Vega, Leticia, PhD.  ”The Impact of Metals on LuxI/LuxR Quorum Sensing and Biofilm Inhibition.”  (2006).(Thesis or Dissertation Director)
Grants And Fellowships
	The Impact of E95 and E10 on BTEX and other Hydrocarbons in Ground Water. American Petroleum Institute. Funded.
	Microbial Impacts of Engineered Nanoparticles. United States Environmental Protection Agency. Funded.
	Civil and Environmental Engineering Program Update to the 21st Century. National Science Foundation. Funded.
	Fullerene-Microbial Interactions: Implications for disinfections and risk assessment. National Science Foundation. Funded.
	Development of an RTQ-PCR protocol for the detection and quantification of anaerobic benzene degraders. EPA/GCHSRC. Funded.
	Reductions in DNAPL longevity through biological flux enhancement. ESTCP. Funded.
Works In Progress
	“Implications and Applications of the toxicity of nanoparticles”
		As nanotechnology flames the enthusiasm of scientific and technical communities, research aimed at preventing adverse consequences is also occurring at an unusually early stage in the development cycle of a new technology. Our team positions itself in line with this trend: in parallel, we are working on the mechanisms of antibacterial properties of nanoparticles and on the development of engineered disinfection systems. In our proactive approach to nanotoxicity management, our objective is to place a positive spin on the bactericidal properties by, for example, using nanoparticles as a new key substance in the processes of drinking water treatment. More specifically, we focus on fullerene (C60 and nC60), fullerol and carbon nanotubes suspended in solvents (water or organic solvent). We examine their photosensitivity while exposed to UV light. We are also currently loading these nanoparticles in polymeric membranes to ascertain their effect on the mechanical and separation properties of the membranes, while expecting a significant reduction of biofouling.
	“Nanomaterial-Bacterial Interactions”
		The widespread production of engineered nanomaterials and their rapid incorporation into a variety of consumer products and applications is outpacing the research into their health and environmental impacts. Currently, the degree to which cellular processes and ecosystem health may be impacted by nanomaterials, let alone specific toxicity mechanisms, remain largely unknown. The effect of these nanomaterials on microbes is an important consideration due to the role of microbes as the basis of food webs and the primary agents for global biogeochemical cycles. Microorganisms are also important components of soil health and could serve as potential mediators of transformations that affect nanoparticle mobility and toxicity in the environment. In an attempt to contribute to proactive risk management, our research examines the potential impacts of nanomaterial use and disposal on microbes, with the primary focus on fullerenes. We have examined the antibacterial activity of SiO2, TiO2, ZnO, and a fullerene-water suspension named nC60. We are currently determining the mechanism behind the antibacterial activity of nC60 to prevent unintentional ecosystem damage and/or exploit its antibacterial properties in engineered disinfection systems. We are also monitoring the impact of nC60 and powdered C60 on soil microcosms to ascertain the effect of fullerenes on soil microbial communities.
	“Bio-response to Adsorption of Nanomaterials with Different Adsorbents”
		In recent decades, nanotechnology has been booming in both scientific and marketing areas. Nanosized materials are often hailed for their extraordinary properties. But these also raise concerns of unique toxicity. What is the transfer and fate of these nanomaterials, what kind of bio-impact will they bring are still waiting for exploration. Microbes, as the foundation of the whole biosphere, deserve the primary concern to study their response when exposed to nanomaterials. On the basis of former study, which has shown toxicity of nC60 (fullerene-water suspension) to bacteria, we are examining bacterial response to nC60 when n60 is adsorbed to different adsorbents. Granular activated carbon, silica gel and polystyrene beads are chosen to test the relationship between toxicity of nC60 and bioavailability.
	“Reductions in DNAPL Longevity Through Biological Flux Enhancement”
		Reductions in DNAPL Longevity Through Biological Flux Enhancement Remediation of aquifers contaminated with chlorinated solvents (CAH) such as tetrachloroethene (PCE) and trichloroethene (TCE) is a multi-billion dollar problem for industry and federal government. Estimates of the number of sites containing CAH contamination has been placed near 3000. The most frequently used treatment technologies (pump-and-treat, zero-valent iron barriers) focus on management of CAH plumes rather than dense non-aqueous phase liquid (DNAPL) source zones that slowly dissolve over years to produce plumes. Therefore, present technology treats the symptoms rather than the cause. Source zone bioremediation harnesses the natural metabolism of dehalorespiring organisms, capable of thriving at high concentrations of chlorinated solvent contamination, to modify the dissolution characteristics of DNAPLs. If source zones could be effectively treated using low cost bioremediation technology, significant reduction in remediation life cycle costs could be achieved. The objective of this project was to conduct a quantitative demonstration of DNAPL source zone bioremediation in a cost-effective manner with a known initial DNAPL mass and composition and a parallel independent control. More specifically: 1) provide a basis for critical analysis of the extant field data from ongoing tests to determine if source zone longevity is being biologically impacted at these sites; 2) allow for the characterization of the microbial ecology in a NAPL source zone using molecular techniques for tracking and enumerating critical populations; 3) allow for the assessment of differences in source zone architecture on bioremediation potential; and, 4) develop a basis for cost and effectiveness considerations at field scales. We have demonstrated that rapid dechlorination activity can occur in the immediate vicinity of pure DNAPL causing dramatic changes in the mass transfer and partitioning characteristics of the DNAPL, and result in rapid DNAPL dissolution.
	“The Impact of Metals on LuxI/LuxR Quorum Sensing and Biofilm Inhibition “
		The Impact of Metals on LuxI/LuxR Quorum Sensing and Biofilm Inhibition Biofilms are a community of microorganisms held together by an extracelluar glue known as a glycocalyx. Biofilms are ubiquitous in nature; they are found on the surface of rocks in river streams, as plaque on the surface of teeth, and are utilized in wastewater treatment processes to break down organics and to remove nutrients (Ghannoum and O’Toole 2004). Although biofilms provide a key role in bioremediation, they can cause significant environmental damage via microbial induced corrosion (MIC). Microbial induced corrosion is the corrosion of materials by microorganisms either directly or indirectly, through the production of organic acids, depassivation of surfaces, or the direct attack of a component, all of which wear away the surface of the material (Hernandez-Gayosso 2004). Billions of dollars per year are spent replacing failing infrastructure such as water lines and cooling equipment due to MIC. Because of their use in bioremediation and their potential for environmental damage, the ability to control whether a biofilm forms to its subsequent activity would be of significant interest to environmental engineers and scientists. We propose to investigate the influence of metals, particularly, nickel, on LuxI/LuxR quorum sensing and biofilm formation. Although the impacts of metals on cellular metabolism have been studied, there has been little research performed on how nickel and other metals can impact biofilm formation via quorum sensing. Research in this area comes at an opportune time; there is a need to prevent biofilm formation on, among other things, infrastructure and medical implantations. There is sufficient research that shows that biofilm formation can be influenced and/or controlled by quorum sensing. Finally, there is interest in multiple academic communities on developing protocols to mediate quorum sensing which allows study of this phenomena from an interdisciplinary perspective. This project offers an opportunity to create a collaborative forum between government agencies and academia to solve a problem that has widespread implications.
	“Microbial degradation of 7-ketocholesterol”
		7-ketocholesterol, like many oxysterols, belongs to a regulatory class of molecules with diverse activity. Some examples are promotion of cellular apoptosis, regulation of reverse cholesterol transport and sphingolipid metabolism, platelet aggregation, protein prenylation and activation of pro-inflammatory cytokines. Some oxysterols can also compromise ecological health by acting as endocrine disruptors. I am investigating the mechanism of microbial 7-ketocholesterol degradation in order to isolate and characterize the enzymes involved.
	“Groundwater Transport, reservoir amplification, and natural attenuation of antibiotic resistance vectors”
		Genes as Environmental Pollutants: Currently little is known about the behavior and properties of antibiotic resistance genes in typical environmental settings with respect to their transport and the development, amplification and possible attenuation of microbial antibiotic resistance. The motivation for my work arises from the need for better basic understanding of the environmental properties of this emerging pollutant. My work seeks to advance the understanding of the development, amplification and potential attenuation of antibiotic resistance in indigenous soil microorganisms exposed to antibiotics, and/or antibiotic resistance gene vectors that are released to the environment as a result of animal agricultural practices under varying antibiotic dosing scenarios. Emphasis is placed on studying the soil/water interface because direct runoff and groundwater infiltration represent likely human exposure pathways to antibiotic resistant bacteria. The goals of this research are to characterize: (1) the effect of antibiotic exposure on the dynamics of microbial antibiotic resistance, (2) effect of antibiotic exposure on inter-specific tet-gene transfer, (3) effect of antibiotic exposure on resistance plasmid dynamics in pure tetR cultures, and (4) resistance vector transport in porous media.
Teaching Activities
	Joint Course Share of Load Number of Students Spring 2006   CEVE 536 Environmental Biotechnology No 100 11 Fall 2006   CEVE 203 Principles of Environmental Engineering No 100 26
Research Advising
	Graduate   Delina Lyon 2006 Advisor   Michal Rysz 2006 Advisor   Jacques Mathieu 2006 Advisor   Diego Gomez 2006 Advisor   Rosa Dominguez-Faus 2006 Advisor   Guyton Durnin 2006 Advisor   Leticia Vega 2006 Advisor Postdoctoral   Marco DaSilva 2006 Mentor   Laura Adams 2006 Mentor
University Activities
	Advisor
		Undergraduate and graduate student advising
	Speaker
		Dean’s Lecture Series
	Faculty Advisor
		ADVANCE
Departmental Activities
	Department Chair
	Ad hoc member, CEE Faculty Search Committee
Outreach Activities
	External Professional Services
		– Strake Jesuit College Preparatory. (Board of Directors) – Registered Professional Engineer, Michigan, Iowa and Texas. (2006) – Registered Groundwater Professional Engineer, Iowa. (2006) – Board of Directors, ENANCAL, Water Resources of Nicaragua. (2006)
Positions Held
	Board of Directors, Strake Jesuit College Preparatory.  (2006 – ).
	Honorary Professor, Nankai University, Tianjin, China.  (2006 – ).
	President, Association of Environmental Engineering and Science Professors.  (2005 – 2006).
Outside Relationships
	Member, CLEANER Committee, National Research Council.
	Member, Publications Committee, American Academy of Environmental Engineers.
	Board Member, Hazardous Assessment and Control of Toxic Substances in Water, International Water Association.
	Scientific committee member, Leading Edge Technologies, International Water Association
	Board of Directors, ENANCAL
Rice University March 08, 2007

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Resume

EDUCATION B.Eng. 1982 Civil Engineering McGill University, MontrŽal

POSITIONS 2005-present CEE Dept. Chair Rice University, Houston, TX

2004-present G.R. Brown Professor Rice University, Houston, TX

2001-2003 Professor The University of Iowa, Iowa City

1999 Visiting Professor EAWAG, Switzerland

1998-2003 Associate Director Center for Biocatalysis & Bioprocessing

1997-2001 Associate Professor The University of Iowa, Iowa City

1993-1997 Assistant Professor The University of Iowa, Iowa City

¥ Expert Advisor, Brownfields Technical Advisory Committee, State of Iowa, 1997

¥ Expert Advisor, Underground Storage Tank Interim Study Committee of the

HONORS AND AWARDS

1997 Listed in WhoÕs Who in Science and Engineering

1996 Listed in WhoÕs Who Among AmericaÕs Teachers and WhoÕs Who in Environ. Engrg.

1996 Awarded the Alejo Zuloaga Medal by the Universidad de Carabobo, Venezuela

1995 Inducted into the American Academy of Environmental Engineers, Diplomate Status

1995 Career Award, National Science Foundation.

1995 Best Paper Award, EPA Hazardous Substance Research Center for Regions 7 and 8

1995 Appointed Adjunct Professor, Universidade Federal de Santa Catarina, Brasil

1995 Old Gold Summer Fellowship, University of Iowa

1994, 2002 Elected to The University of Iowa Faculty Senate

1994 Old Gold Summer Fellowship, University of Iowa

1992 Outstanding Presentation Award, AIChE Summer Meeting, Minneapolis, MN

1992 The Rackham Predoctoral Fellowship, The University of Michigan, Ann Arbor, MI

1991 The Outstanding Achievement Award in Environmental Engineering, U. of Michigan

AFFILIATIONS

AAEE, ACS, AEESP, ASCE, ASM, IWA, WEF, SEPM, SHPE, Tau Beta Pi, and Chi Epsilon.

COURSES TAUGHT

D. Conferences and Sessions Chaired

E. Environmental Impact Studies

F. Patents

 

FUNDING AS PRINCIPAL INVESTIGATOR

API, ÒThe Impact of E95 and E10 on BTEX and other Hydrocarbons in Ground WaterÓ (270,000) 7/1/05-6/30/07, Co-PI: Bill Rixey

U.S. EPA, ÒMicrobial Impacts of Engineered NanoparticlesÓ ($375,000) 9/1/05-8/31/08 (Co-PI Mark Wiesner)

National Science Foundation, ÒCivil and Environmental Engineering Program Update to the 21st CenturyÓ ($100,000) 9/01/05-8/31/06 (Co-PI Phil Bedient)

National Science Foundation, ÒFullerene-Microbial Interactions: Implications for disinfection and risk assessmentÓ ($150,000) 9/1/05-8/31/06 (Co-PI with Mark Wiesner and Jiasong Fang)

National Science Foundation, ÒNSF CAREER Award Proposal Writing WorkshopÓ ($16,000) 6/15/05-12/31/05

EPA/GCHSRC, ÒDevelopment of an RTQ-PCR protocol for the detection and quantification of anaerobic benzene degradersÓ (100,000) 9/04-8/06.

ESTCP, ÒReductions in DNAPL longevity through biological flux enhancementÓ ($200,000) 6/1/2004-5/31/2006 (Co-PI with Herb Ward and Joe Hughes).

National Science Foundation, ÒWorkshop on U.S.-Latin American Caribbean environmental problems and sustainable solutionsÒ ($28,000) 5/15/04-12/31/04.

U.S. Army Corps of Engineers, CECER Lab ÒEvaluation of Rotating Biofilter Reactor at the Iowa Army Ammunitions Plant ($160,000) 05/01/03-12/31/04

National Science Foundation, ÒPAH biodegradation in the rhizosphere of tropical plantsÓ ($100,000) 9/15/02-8/14/04.

ISWRRI, ÒFate and transfer of antibiotic resistance genesÓ ($132,430), 5/02-4/04.

National Science Foundation, ÒEnvironmental Impacts of Ethanol in Gasoline: A Planning Trip to BrazilÓ ($12,915) 8/15/01-8/14/02.

American Petroleum Institute, ÒEffect of Ethanol on BTEX Plume LengthÓ ($38,994) 8/01/01 – 7/31/02.

SERDP, ÒFe(0)-Based Bioremediation of RDX Contaminated GroundwaterÓ ($500,000) 8/01/01 – 12/31/03

EPA/OER, ÒEffect of the gasoline oxygenate ethanol on the migration and natural attenuation of BTEXÓ ($194,878) 1/1/00 -8/31/04.

SERDP, ÒFe(0)-Based Bioremediation of RDX Contaminated AquifersÓ ($99,997) 1/01/00 – 12/31/00.

American Petroleum Institute, ÒEffect of Ethanol on BTEX and MTBE Natural AttenuationÓ ($85,000) 7/01/99 – 6/30/01.

EPA/HSRC, ÒIron-Enhanced Bioremediation of Aquifers Contaminated with Chlorinated Solvents, Heavy Metal, and Agrochemical MixturesÓ, ($150,000), 10/01/99-5/31/01 01 (Co-PI with G.F. Parkin and M. Scherer).

Lawrence Livermore National Lab, ÒThe Use of Ethanol as a Transportation Fuel OxygenateÓ ($98,055), 8/1/99 – 6/30/01.

Iowa Comprehensive Petroleum Underground Storage Tank Fund Board “Tier 3 model evaluation of groundwater contaminant models” ($43,255 direct costs) 1/01/99 – 5/31/00.

U.S. Geological Survey.ISWRRI, ÒTreatment of Nitrate-Contaminated Groundwater with Fe(0) and Autotrophic DenitrifiersÓ ($180,086) 9/01/98-8/31/00.

Department of Energy, ÒBiogeochemical Interactions in Zero-Valent Iron WallsÓ ($491,985), 9/01/98 – 8/31/01 (Co-PI with G.F. Parkin and J.L. Schnoor)

National Science Foundation, “Research Training Grant: Gene expression in bioremediation” ($1,600,000) 9/01/96 – 8/31/00 (PI is E.P. Greenberg).

Iowa Comprehensive Petroleum Underground Storage Tank Fund Board “Evaluation of Tier-3 Groundwater Models” ($92,836direct costs) 1/1/99-12/31/01.

Iowa Comprehensive Petroleum Underground Storage Tank Fund Board “Evaluation of Tier-2 Groundwater Modeling Program” ($17,079 direct costs) 5/01/98 – 12/31/98.

Hoescht Celanese, Inc., “Phytoremediation of 1,4-dioxane and bioaugmentation of the poplar rhizosphere” ($88,317) 9/01/98 – 8/31/99 (Co-PI with Jerry L. Schnoor).

Hoescht Celanese, Inc., “Phytoremediation of sites contaminated with dioxane” ($93,000) 9/01/96 – 8/31/97 (Co-PI with Jerry L. Schnoor).

National Science Foundation, “Career Award” ($275,000) 7/01/95 – 6/30/99.

EPA/OER, “Biostimulation of BTX degradation with environmentally benign aromatic substrates” ($246,342) 10/1/95 – 9/30/98.

Center for Health Effects of Environmental Contamination, ÒBioaugmentation of the poplar rhizosphere with GEMs ” ($15,000) 2/1/97-8/31/97.

Center for Health Effects of Environmental Contamination, “Expression of toluene dioxygenase under various redox and substrate conditions” ($15,000) 1/01/95 – 12/31/95.

Center for Health Effects of Environmental Contamination, “Effect of poplar trees on microbial populations important to hazardous waste bioremediation” ($15,000) 1/01/95 – 12/31/95.

EPA/HSRC, “The role of elemental iron in biotransformations of halogenated xenobiotics” ($554,591) 5/1/95 – 4/30/98. (Co-PI with Gene F. Parkin and Jerry L. Schnoor).

Montgomery Watson, Inc. (funded by DoD), “TCE uptake by common garden vegetables”

($154,500) 9/01/94 – 8/31/95.

NIEHS Environmental Health Sciences Core Center at Iowa, “Enhanced degradation of trace levels of benzene” ($9,000) 7/01/94 – 3/31/95.

Center for Global and Regional Environmental Research, “Reductive dechlorination of chlorinated methanes with iron metal” ($15,000) 9/01/94 – 8/31/95.

Iowa State Water Resources Research Institute, “The effect of structural analogues on monoaromatic hydrocarbon biodegradation” ($59,020 plus $45,000 in equipment match-up from U. of Iowa) 7/01/93 – 6/30/96.

National Science Foundation, “The effect of sustained nitrate exposure on monoaromatic hydrocarbon biodegradation” ($11,952) 1/01/94 – 12/31/94.

Microbiotics Corp., “The use of Microtox as a screening tool to evaluate bioremediation techniques” (Equipment grant for $ 10,000) 7/1/94.