Grantee Research Project Results
2004 Progress Report: Western Region Hazardous Substance Research Center for Developing In-Situ Processes for VOC Remediation in Groundwater and Soil
EPA Grant Number: R828772Center: Solutions for Energy, AiR, Climate and Health Center (SEARCH)
Center Director: Bell, Michelle L.
Title: Western Region Hazardous Substance Research Center for Developing In-Situ Processes for VOC Remediation in Groundwater and Soil
Investigators: Semprini, Lewis
Current Investigators: Semprini, Lewis , Williamson, Kenneth J. , Reinhard, Martin
Institution: Oregon State University , Stanford University
Current Institution: Oregon State University
EPA Project Officer: Aja, Hayley
Project Period: September 1, 2001 through August 31, 2006 (Extended to August 31, 2007)
Project Period Covered by this Report: September 1, 2003 through August 31, 2004
Project Amount: $5,572,000
RFA: Hazardous Substance Research Centers - HSRC (2001) Recipients Lists
Research Category: Hazardous Waste/Remediation , Land and Waste Management
Objective:
The Western Region Hazardous Substance Research Center (WRHSRC) is a cooperative activity between Oregon State University (OSU) and Stanford University that was established in October 2001. The Center is a continuation of the original Center established in 1989 to address critical hazardous substance problems in EPA Regions 9 and 10. The regions include the states of Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, and Washington, and Guam. The Center receives its base financial support from the U.S. Environmental Protection Agency.
The objectives of the Center are:
- To develop innovative technologies for the in-situ treatment of volatile organic chemicals (VOCs) in groundwater, especially chlorinated solvents.
- To increase the number, speed, and efficiency of available treatment options for both high concentration source zones and diffuse contamination plumes.
- To disseminate the results of research to the industrial and regulatory communities, to foster exchange of information with these communities, and to promote a better understanding of the scientific capability to detect, assess, and mitigate risks associated with hazardous substance usage and disposal.
Groundwater cleanup and site remediation, with a strong emphasis on treatments that use microbes or chemical catalysts to transform VOCs into harmless substances, represent the major focus of Center activities. Research projects include biological (biotic) and physical and chemical (abiotic) treatment processes, as well as in-situ characterization methods for monitoring the progress of both intrinsic and the enhanced remediation. In combination with basic laboratory and field studies, physical and mathematical models are being used to study these processes and to provide a bridge between theory and practice. The technology transfer program involves the process of taking new technologies from the laboratory to the field. Center researchers are working with other federal agencies, such as the Department of Defense (DoD) and the Department of Energy (DoE), and private industry, in conducting field evaluations of new technologies. Technical Outreach Services for Communities (TOSC) is a technical assistance program designed to aid communities confronted with environmental contamination by hazardous waste sites. TOSC provides interested community groups with technical information and assistance that can enable early and meaningful public participation in decisions that affect health and welfare. The Center’s Technical Assistance to Brownfields Communities (TAB) Program provides assistance to communities attempting to address cleanup and redevelopment of properties whose reuse has been prevented by real or perceived contamination. TAB attempts to improve involvement of all affected parties in the cleanup and redevelopment process through education and training.
Fifteen OSU and Stanford faculty members are currently involved in the Center. They collectively represent an integrated research group of many different disciplines, including biochemistry, chemistry, environmental engineering, environmental chemistry, geosciences, hydrogeology, molecular biology, microbiology, public health, and sociology. Lewis Semprini is director of the Center and of the research program. Kenneth J. Williamson serves as associate director in charge of training, technology transfer, and community outreach. Martin Reinhard, the assistant director, is in charge of the Center’s quality control program. Garrett Jones is the Center’s administrative assistant.
The Center has two major advisory groups to guide its activities. The Science Advisory Committee (SAC) has oversight for all Center research activities and technology transfer activities, and the Outreach Advisory Committee (OAC) oversees the Center’s TOSC and TAB programs. The members of the SAC and OAC represent federal and state governments, industry, consulting firms, and universities. Experts with a broad range of expertise are included in the SAC and the OAC.
The education of students interested in careers directed toward finding solutions to environmental problems is another important goal. Twelve graduate students have been supported during the third year of the Center, with ten of these being Ph.D. students. Over 60% of the Center core funds are being directed toward the graduate training of students through the Center’s research and outreach projects.
Progress Summary:
The major focus of research activities for the OSU-Stanford University WRHSRC, and indeed its major mission, has been the conduct of basic research related to the in situ treatment of VOC subsurface contamination. During the past year, research was initiated on five new research projects associated with the in situ remediation of chlorinated solvents. The projects and the researchers are summarized below in Table 1.
Table 1. Research Project Summary
EPA |
Center |
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Principal Investigator (PI), |
R828772C010 |
2-OSU-05 |
Aerobic Cometabolism of Chlorinated Ethenes by Microorganisms that Grow on Organic Acids and Alcohols |
Peter Bottomley, PI, Daniel Arp, Mark Dolan, Lewis Semprini, Co-PIs, Oregon State University |
R828772C011 |
2-OSU-06 |
Development and Evaluation of Field Sensors for Monitoring Anaerobic Dehalogenation After Bioaugmen tation |
James Ingle, PI, Oregon State University |
R828772C012 |
2-OSU-07 |
Continuous-Flow Column Studies of Reductive Dehalogenation with Two Different Enriched Cultures: Kinetics, Inhibition, and Monitoring of Microbial Activity |
Lewis Semprini, PI, Oregon State University, Mark Dolan, Co-PI, Oregon State University, Alfred Spormann, Co-PI, Stanford University |
R828772C013 |
2-SU-04 |
Novel Methods for Laboratory Measurement of Transverse Dispersion in Porous Media |
Peter K. Kitanidis, PI, Craig Criddle, Stanford Co-PI, Stanford University |
R828772C014 |
2-SU-05 |
The Role of Micropore Structure in Contaminant Sorption and Desorption |
Martin Reinhard, PI, Stanford University |
Research projects include both aerobic and treatment processes (physical and reactive transport processes), as well as in-situ characterization methods for monitoring the progress of both intrinsic and the enhanced remediation. Three project PIs are at OSU and three are at Stanford University. Project 2-OSU-07 represents a joint project between Stanford University and Oregon State University on the anaerobic transformation of chlorinated solvents.
Project 2-OSU-05 (R828772C010), which is being conducted at OSU, is a collaborative project among microbiologists and engineers headed by Peter Bottomley and Mark Dolan. The goal of the project is to study the aerobic cometabolism of chlorinated ethenes by microorganisms that are grown on hydrocarbons as well as organics acids, and also to study the direct aerobic metabolism of vinyl chloride (VC) and cis-dichloroethene (cis-DCE). In a study being directed by Peter Bottomley and Daniel Arp, conditions are being identified that maximize reductant flow to cometabolism and that promote maximum expression of monooxygenase genes and enzyme activity. They found in studies with Pseudomonas butanovora, and Nocardiodes sp. CF8, TCE cooxidation ultimately resulted in 96% inactivation of the butane monooxygenases (BMOs). The BMO of Mycobacterium vaccae, however, was more resistant to inactivation by TCE. They also found that the cooxidation of DCEs in P. butanovora can be driven by a variety of organic acids provided as exogenous electron donors; lactate supports the highest initial rates, and also sustains rates for the longest period of time.
In a study being directed by Mark Dolan and Lewis Semprini, cultures are being characterized that can transform cis-DCE and VC when grown on acetate, propionate, and butyrate. In addition, cultures are being isolated and characterized that can grow directly on cis-DCE and VC. Enrichments that are grown on ethene (Eth), VC, and potentially fluoroethene (FE), have been obtained from groundwater obtained from Ft. Lewis, WA. Genomic DNA from enrichment cultures was probed with CoM transferase primers after growing on Eth, VC or FE for 30 days. CoM transferase, which is expected to be involved with the metabolism of the epoxides that were formed, was detected with growth on all three substrates. Efforts are being made to obtain pure cultures from the enrichments.
Project 2-OSU-06 (R828772C011) is being conducted at OSU under the direction of James Ingle. The goal of this study is to develop, refine, and use sensors and field instruments, based on redox indicators and other reagents, as on site, on line, or in- situ monitoring tools for assessing and optimizing redox and related conditions for treatment of PCE and TCE with dehalogenating cultures. The research team has continued to improve portable flow monitoring systems based on immobilized redox indicators and has used them to examine redox conditions in microcosm bottles containing a dechlorinating culture (Evanite culture). A new method has been developed to determine the “reductive capacity” or “effective concentrations of reductants” in aqueous anaerobic samples taken from microcosm bottles, soil columns, and physical aquifer models (PAMs). A fiber optic probe, with immobilized redox indicator film at its tip to monitor redox status, has also been developed. The probe is used in conjunction with a light source and CCD spectrometer to monitor the absorbance of the indicator. This probe can be easily positioned in soil columns and PAMs and provides for true in-situ sampling.
Project 2-OSU-07 (R828772C012), a joint project of OSU and Stanford University, is evaluating the transformation of chlorinated ethenes in continuous-flow column studies with the Point Mugu (MU) and the Evanite (EV) cultures that have been developed and kinetically characterized in a previous WRHSRC project. Molecular methods, such as FISH and Real-Time PCR, are being used to determine the spatial distribution of the cultures and quantify the dehalogenating biomass within the column. RNA-based methods are also being applied to determine energetically based TCE and VC-dehalogenating activity temporally and spatially within the column. Under the direction of Lewis Semprini and Mark Dolan, a continuous-flow column experiment was conducted with the Evanite (EV) enrichment culture in the presence of Hanford aquifer solids. PCE dechlorination to TCE, and cis-DCE, were observed when lactate was fed as a fermentable substrate. When the lactate concentration was increased, propionate production was observed from lactate fermentation, and cis-DCE reduction to vinyl chloride (VC) and ethene occurred.
In studies being conducted at Stanford University under the direction of Alfred Spormann, a CARD-FISH protocol for the identification of Dehalococcoides sp. in environmental samples was developed. The protocol uses HRP-labeled 16S rRNA targeted oligonucleotide probes specific for the genus Dehalococcoides sp. The probe targets all 16S rRNA gene sequences of Dehalococcoides species currently in public databases, comprising isolated strains and environmental clones. They were able to show that HRP-label ed probes can be used to detect the Dehaloccoccoides sp. subpopulation within the Evanite enrichment culture. They were also able to demonstrate the presence of the vcrAB gene in total DNA extractions of the Evanite enrichment culture using the primer published by Müller, et al. (2004). The results demonstrate the ability of the Evanite culture to grow on VC, consistent with results of previous Center kinetic studies.
Project 2-SU-04 (R828772C013), a project at Stanford University under the direction of Peter Kitanidis and Craig Criddle, is investigating novel methods for the measurement of transverse dispersion in homogeneous isotropic unconsolidated porous media. In this project, new experimental protocols and methods of data analysis are being developed, and an extensive set of experiments are being performed to determine relations of transverse dispersivity with conductivity, longitudinal dispersivity, mean grain size, degree of non-uniformity, etc. New methods for the measurement of local transverse dispersion in isotropic porous media based on a helical and a cochlea-like device have been developed. Currently, tracer experiments are being performed in the cochlea device and results are being compared to those obtained in a helical device.
Project 2-SU-05 (R828772C014), a project at Stanford University under the direction of Martin Reinhard, is evaluating the role of microstructure on contaminant sorption and desorption, as well as abiotic transformations. The overall goal of this project is to develop a better understanding of the impact of soil nanopores on the fate and transport of halogenated hydrocarbon contaminants. Specific project goals are to: (1) study the kinetics of slow sorption and desorption of halogenated hydrocarbons in aquifer sediment, and (2) determine the effect of sorption on contaminant reactivity. The researchers have developed a novel analytical system that allows them to study simultaneously sorption and transformation of volatile organics in geological sorbents. The system consists of a soil column chromatograph that was developed in a previously funded Center project, which is directly coupled to a chromatograph for the analysis of the sorbate and transformation products. Studies with dichloropropene (DCP) obtained at different soil moisture contents confirmed that the sorption capacity decreases significantly as the moisture content increases, indicating that water displaces DCP from sorption sites. Hydrolytic transformation of DCP in the nanopores of Lawrence Livermore National Laboratory (LLNL) soil was studied by measuring DCP and its hydrolysis product desorbed from soil columns. Their experimental data show that reactive (i.e., hydrolysable) contaminants sorbed in slow desorbing sites of geological solids react significantly slower than in bulk solution, suggesting that the contaminants reside in an environment that is essentially excluded from water.
Training and Technology Transfer
The education of graduate students in the research focus area of the Center is one of our main training activities. Two M.S. students and 10 Ph.D. students received Center funds through graduate research assistantships over the past year. One student has been funded through the Center outreach program and nine through the different research projects. Through Center funding, students are being trained to do fundamental research at the Ph.D. level in a broad range of disciplines. More than half of the Center funding is devoted to the training of graduate students, with the funding going directly for tuition, stipends, travel to conferences, and supplies and materials for research. Several of the students have won awards and fellowships as a result of their Center research.
Technology transfer is an important component of the WRHSRC. The goals of the training and technology transfer program are to: (1) promote teamwork and information exchange among researchers using Web pages and seminars; (2) provide information transfer with practitioners using Web pages, electronic newsletter, video workshops, faculty presentations and publications; (3) test new technologies through pilot-scale testing and develop online project databases; and (4) implement full-scale demonstration projects. The WRHSRC Web Site developed and maintained at OSU receives about 1,500 visitors per month. Some of the information contained on the Web site includes descriptions of research focus areas and projects; a database of WRHSRC publications and previous projects, 1989-2004; descriptions of Center outreach programs and links to the separate Web sites for the Western Region TOSC/TAB programs; and a News and Events page with regular postings. The Web site address is http://wrhsrc.orst.edu Exit . The Web site features Center publications and a searching capability, research briefs, demonstration projects for Technical Outreach Services for Communities, and a page that walks clients through the process of obtaining help from TOSC. Interested clients and individuals can subscribe to the new e-mail newsletter (launched in spring 2003) for WRHSRC and TOSC (started in fall 2002). Two Research Briefs, focusing on the Center Research Projects, were distributed through e-mail in 2004. The technology transfer program created three new research briefs that were distributed by e-mail, as well as posted on the WRHSRC Web Site and the HSRC Web Site.
The WRHSRC also houses a program to promote training activities related to lead paint contamination and disposal. The Western Regional Lead Training Center at OSU (WRLTC-OSU), originally established with U.S. EPA grant funding in 1992, is an accredited non-profit training provider of lead-based paint abatement workshops for U.S. EPA and the State of Oregon certification programs. It is the only Oregon-accredited lead-based paint (LBP) training Center and provides all of the federal LBP curricula. WRLTC-OSU is also accredited in Washington, Alaska, and Idaho, as well as all of the Pacific Northwest Indian Tribes. In 2004, nearly 200 students attended 24 workshops and received 234 certificates. Accredited workshops included Lead Inspector, Lead Risk Assessor, Combined Lead Inspector and Risk Assessor Refresher, Lead Abatement Worker, Lead Abatement Supervisor, Combined Lead Abatement Worker and Supervisor Refresher, and Lead Project Designer.
TOSC and TAB Programs
The two outreach programs of importance are Technical Outreach Services for Communities (TOSC) and Technical Assistance to Brownfields Communities (TAB). These programs are directed by Ken Williamson and Denise Lach at OSU.
TOSC provides interested community groups with technical information and assistance that can enable early and meaningful public participation in decisions that affect health and welfare. The TOSC program provides a viable alternative strategy for communities that do not qualify for a Technical Assistance Grant (TAG) from the U.S. Environmental Protection Agency. The TOSC team is comprised of university faculty and students, as well as contracted environmental professionals with specialization in environmental engineering, risk communication, public health, information transfer, environmental justice, and community relations. Currently, the TOSC program is actively working with communities in Oregon (1), Washington (2), Arizona (1), and California (9) (the number in parentheses following the state designates the number of communities in each state).
The TAB program provides assistance to communities attempting to address cleanup and redevelopment of properties whose reuse has been prevented by real or perceived contamination. TAB attempts to improve involvement of all affected parties in cleanup and redevelopment process through education and training. The TAB program is currently working in Oregon (1), Washington (1), and Arizona (1). They have worked with the cities of Portland, OR; Spokane, WA; East Palo Alto, CA; and Richmond, CA, on various issues related to brownfields redevelopment. The TAB program as helps coordinate an annual brownfields conference in partnership with the Oregon Department of Environmental Quality and Oregon Economic and Community Development Department.
Center Annual Research Meeting
In November 2004, Center researchers, graduate students, and Science Advisory Committee members met for the third annual meeting of the WRHSRC while attending the NERL/HSR Meeting on Superfund Research in Las Vegas, Nevada. A student poster session on the Center’s research projects was held on the evening of November 4, and during the meeting the SAC reviewed the progress of the Center’s research programs over the past year.
Journal Articles: 69 Displayed | Download in RIS Format
| Other center views: | All 168 publications | 73 publications in selected types | All 69 journal articles |
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Achong GR, Rodriguez AM, Spormann AM. Benzylsuccinate synthase of Azoarcus sp. strain T: cloning, sequencing, transcriptional organization, and its role in anaerobic toluene and m-xylene mineralization. Journal of Bacteriology 2001;183(23):6763-6770. |
R828772 (Final) |
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Arp DJ, Yeager CM, Hyman MR. Molecular and cellular fundamentals of aerobic cometabolism of trichloroethylene. Biodegradation 2001;12(2):81-103. |
R828772 (2002) R828772 (Final) R825689C027 (Final) |
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Azizian M, Marshall I, Behrens S, Spormann A, Semprini L. Comparison of lactate, formate, and propionate as hydrogen donors for the reductive dehalogenation of trichloroethene in a continuo-flow column. JOURNAL OF CONTAMINANT HYDROLOGY 2010;113(1-4):77-92. |
R828772 (Final) |
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Behrens S, Azizian M, McMurdie P, Sabalowsky A, Dolan M, Semprini L, Sporman A. Monitoring abundance and expression of Dehalococcoides species chloroethene-reductive dehalogenases in a tetrachloroethene-dechlorinating flow column. APPLIED AND ENVIRONMENTAL MICROBIOLOGY 2008;74(18):5695-5703. |
R828772 (Final) |
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Benekos ID, Cirpka OA, Kitanidis PK. Experimental determination of transverse dispersivity in a helix and a cochlea. Water Resources Research 2006;42:W07406, doi:10.1029/2005WR004712. |
R828772 (Final) |
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Cantrell KM, Ingle Jr JD. The SLIM spectrometer. Analytical Chemistry 2003;75(1):27-35. |
R828772 (2002) R828772 (2003) R828772 (Final) R828772C007 (2001) |
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Cantrell K, Ingle Jr. JD. Design and evaluation of a membrane sampling spectrometer array for real-time, in-situ depth profiling of sub-surface waters. Aquatic Sciences-Research Across Boundaries. |
R828772 (2003) |
not available |
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Cheng H, Reinhard M. Sorption of trichloroethylene in hydrophobic micropores of dealuminated Y zeolites and natural minerals. Environmental Science & Technology 2006;40(24):7694-7701. |
R828772 (Final) R828772C014 (2005) |
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Cheng H, Reinhard M. Measuring hydrophobic micropore volumes in geosorbents from trichloroethylene desorption data. Environmental Science & Technology 2006;40(11):3595-3602. |
R828772 (Final) R828772C014 (2005) |
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Cheng H, Reinhard M. Sorption and inhibited dehydrohalogenation of 2,2-dichloropropane in micropores of dealuminated Y zeolites. Environmental Science & Technology 2007;41(6):1934-1941. |
R828772 (Final) |
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Chu M, Kitanidis PK, McCarty PL. Effects of biomass accumulation on microbially enhanced dissolution of a PCE pool: a numerical simulation. Journal of Contaminant Hydrology 2003;65(1-2):79-100. |
R828772 (2002) R828772 (Final) |
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Cunningham JA, Deitsch JJ, Smith JA, Reinhard M. Quantification of contaminant sorption-desorption time-scales from batch experiments. Environmental Toxicology and Chemistry 2005;24(9):2160-2166. |
R828772 (Final) R828772C014 (2005) |
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Cupples AM, Spormann AM, McCarty PL. Growth of a Dehalococcoides-like microorganism on vinyl chloride and cis-dichloroethene as electron acceptors as determined by competitive PCR. Applied and Environmental Microbiology 2003;69(2):953-959. |
R828772 (2002) R828772 (Final) |
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Cupples AM, Spormann AM, McCarty PL. Comparative evaluation of chloroethene dechlorination to ethene by Dehalococcoides-like microorganisms. Environmental Science & Technology 2004;38(18):4768-4774. |
R828772 (2004) R828772 (Final) |
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Doughty DM, Sayavedra-Soto LA, Arp DJ, Bottomley PJ. Effects of dichloroethene isomers on the induction and activity of butane monooxygenase in the alkane-oxidizing bacterium “Pseudomonas butanovora.” Applied and Environmental Microbiology 2005;71(10):6054-6059. |
R828772 (2003) R828772 (Final) R828772C010 (2005) |
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Doughty DM, Sayavedra-Soto LA, Arp DJ, Bottomley PJ. Product repression of alkane monooxygenase expression in Pseudomonas butanovora. Journal of Bacteriology 2006;188(7):2586-2592. |
R828772 (Final) R828772C010 (2005) |
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Doughty DM, Halsey KH, Vieville CJ, Sayavedra-Soto LA, Arp DJ, Bottomley PJ. Propionate inactivation of butane monooxygenase activity in ‘Pseudomonas butanovora’: biochemical and physiological implications. Microbiology 2007;153(Pt 11):3722-3729. |
R828772 (Final) |
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Doughty DM, Kurth EG, Sayavedra-Soto LA, Arp DJ, Bottomley PJ. Evidence for involvement of copper ions and redox state in regulation of butane monooxygenase in Pseudomonas butanovora. Journal of Bacteriology 2008;190(8):2933-2938. |
R828772 (Final) |
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Doughty DM, Arp DJ, Bottomley PJ. Dichloroethylenes as substrates and inducers of butane monooxygenase in Pseudomonas butanovora. Microbiology. |
R828772 (2003) |
not available |
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Dupin HJ, Kitanidis PK, McCarty PL. Pore-scale modeling of biological clogging due to aggregate expansion: a material mechanics approach. Water Resources Research 2001;37(12):2965-2979. |
R828772 (2002) R828772 (Final) |
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Dupin HJ, Kitanidis PK, McCarty PL. Simulations of two-dimensional modeling of biomass aggregate growth in network models. Water Resources Research 2001;37(12):2981-2994. |
R828772 (2002) R828772 (Final) |
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Field JA, Reed RL, Istok JD, Semprini L, Bennett P, Buscheck TE. Trichlorofluoroethene: a reactive tracer for evaluating reductive dechlorination in large-diameter permeable columns. Ground Water Monitoring & Remediation 2005;25(2):68-77. |
R828772 (2005) R828772 (Final) |
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Fienen MN, Luo J, Kitanidis PK. Semi-analytical homogeneous anisotropic capture zone delineation. Journal of Hydrology 2005;312(1-4):39-50. |
R828772 (2003) R828772 (Final) |
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Fienen MN, Luo J, Kitanidis PK. A Bayesian geostatistical transfer function approach to tracer test analysis. Water Resources Research 2006;42:W07426, doi:10.1029/2005WR004576. |
R828772 (Final) |
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Frascari D, Kim Y, Dolan ME, Semprini L. A kinetic study of aerobic propane uptake and cometabolic degradation of chloroform, cis-dichloroethylene and trichloroethylene in microcosms with groundwater/aquifer solids. Water, Air, & Soil Pollution: Focus 2003;3(3):285-298. |
R828772 (2002) R828772 (Final) |
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Gandhi RK, Hopkins GD, Goltz MN, Gorelick SM, McCarty PL. Full-scale demonstration of in situ cometabolic biodegradation of trichloroethylene in groundwater. 1. Dynamics of a recirculating well system. Water Resources Research 2002;38(4):1039, doi:10.1029/2001WR000379. |
R828772 (2002) R828772 (Final) |
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Gandhi RK, Hopkins GD, Goltz MN, Gorelick SM, McCarty PL. Full-scale demonstration of in situ cometabolic biodegradation of trichloroethylene in groundwater. 2. Comprehensive analysis of field data using reactive transport modeling. Water Resources Research 2002;38(4):1040, doi:10.1029/2001WR000380. |
R828772 (2002) R828772 (Final) |
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Goltz MN, Williamson KJ. Transfer and commercialisation of contaminated groundwater remediation technologies. International Journal of Technology Transfer and Commercialisation 2002;1(4):329-346. |
R828772 (2002) R828772 (Final) |
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Halsey KH, Sayavedra-Soto LA, Bottomley PJ, Arp DJ. Trichloroethylene degradation by butane-oxidizing bacteria causes a spectrum of toxic effects. Applied Microbiology and Biotechnology 2005;68(6):794-801. |
R828772 (2003) R828772 (Final) R828772C010 (2005) |
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Halsey KH, Sayavedra-Soto LA, Bottomley PJ, Arp DJ. Site-directed amino acid substitutions in the hydroxylase α subunit of butane monooxygenase from Pseudomonas butanovora: implications for substrates knocking at the gate. Journal of Bacteriology 2006;188(13):4962-4969. |
R828772 (Final) |
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Halsey KH, Doughty DM, Sayavedra-Soto LA, Bottomley PJ, Arp DJ. Evidence for modified mechanisms of chloroethene oxidation in Pseudomonas butanovora mutants containing single amino acid substitutions in the hydroxylase α-subunit of butane monooxygenase. Journal of Bacteriology 2007;189(14):5068-5074. |
R828772 (Final) |
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Johnson HA, Pelletier DA, Spormann AM. Isolation and characterization of anaerobic ethylbenzene dehydrogenase, a novel Mo-Fe-S enzyme. Journal of Bacteriology 2001;183(15):4536-4542. |
R828772 (2002) R828772 (Final) R825689C092 (Final) |
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Jones BD, Ingle Jr JD. Evaluation of immobilized redox indicators as reversible, in situ redox sensors for determining Fe(III)-reducing conditions in environmental samples. Talanta 2001;55(4):699-714. |
R828772 (2002) R828772 (Final) |
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Jones BD, Ingle Jr JD. Evaluation of redox indicators for determining sulfate-reducing and dechlorinating conditions. Water Research 2005;39(18):4343-4354. |
R828772 (Final) R828772C011 (2005) |
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Kim Y, Arp DJ, Semprini L. Kinetic and inhibition studies for the aerobic cometabolism of 1,1,1-trichloroethane, 1,1-dichloroethylene, and 1,1-dichloroethane by a butane-grown mixed culture. Biotechnology and Bioengineering 2002;80(5):498-508. |
R828772 (2002) R828772 (Final) R828772C003 (2002) |
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Kim Y, Arp DJ, Semprini L. A combined method for determining inhibition type, kinetic parameters, and inhibition coefficients for aerobic cometabolism of 1,1,1-trichloroethane by a butane-grown mixed culture. Biotechnology and Bioengineering 2002;77(5):564-576. |
R828772 (2002) R828772 (Final) R828772C003 (2002) |
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Kim Y, Semprini L. Cometabolic transformation of cis-1,2-dichloroethylene and cis-1,2-dichloroethylene epoxide by a butane-grown mixed culture. Water Science & Technology 2005;52(8):125-131. |
R828772 (Final) R828772C010 (2005) |
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Lee IS, Bae JH, Yang Y, McCarty PL. Simulated and experimental evaluation of factors affecting the rate and extent of reductive dehalogenation of chloroethenes with glucose. Journal of Contaminant Hydrology 2004;74(1-4):313-331. |
R828772 (2004) R828772 (Final) |
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Lee J, Dolan M, Field J, Istok J. Monitoring Bioaugmenation with Single-Well Push-Pull Tests in Sediment Systems Contaminated with Trichloroethene. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010;44(3):1085-1092 |
R828772 (Final) |
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Luo J, Kitanidis PK. Fluid residence times within a recirculation zone created by an extraction-injection well pair. Journal of Hydrology 2004;295(1-4):149-162. |
R828772 (2003) R828772 (2004) R828772 (Final) R828772C013 (2005) |
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Luo J, Wu W, Fienen MN, Jardine PM, Mehlhorn TL, Watson DB, Cirpka OA, Criddle CS, Kitanidis PK. A nested-cell approach for in situ remediation. Ground Water 2006;44(2):266-274. |
R828772 (Final) |
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Luo J, Cirpka OA, Kitanidis PK. Temporal-moment matching for truncated breakthrough curves for step or step-pulse injection. Advances in Water Resources 2006;29(9):1306-1313. |
R828772 (Final) R828772C013 (2005) |
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McMurdie PJ, Behrens SF, Holmes S, Spormann AM. Unusual codon bias in vinyl chloride reductase genes of Dehalococcoides species. Applied and Environmental Microbiology 2007;73(8):2744-2747. |
R828772 (Final) |
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Muller JA, Rosner BM, von Abendroth G, Meshulam-Simon G, McCarty PL, Spormann AM. Molecular identification of the catabolic vinyl chloride reductase from Dehalococcoides sp. strain VS and its environmental distribution. Applied and Environmental Microbiology 2004;70(8):4880-4888. |
R828772 (2004) R828772 (Final) |
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Munakata N, Reinhard M. Palladium-catalyzed aqueous hydrodehalogenation in column reactors:modeling of deactivation kinetics with sulfide and comparison of regenerants. Applied Catalysis B:Environmental 2007;75(1-2):1-10. |
R828772 (Final) |
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Niemet MR, Semprini L. Column studies of anaerobic carbon tetrachloride biotransformation with Hanford aquifer material. Ground Water Monitoring & Remediation 2005;25(3):82-92. |
R828772 (2005) R828772 (Final) |
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Pon G, Hyman MR, Semprini L. Acetylene inhibition of trichloroethene and vinyl chloride reductive dechlorination. Environmental Science & Technology 2003;37(14):3181-3188. |
R828772 (2003) R828772 (Final) |
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Pon G, Semprini L. Anaerobic reductive dechlorination of 1-chloro-1-fluoroethene to track the transformation of vinyl chloride. Environmental Science & Technology 2004;38(24):6803-6808. |
R828772 (2003) R828772 (2004) R828772 (Final) R828772C012 (2005) |
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Ruiz-Haas P, Ingle Jr JD. Monitoring redox conditions with flow-based and fiber optic sensors based on redox indicators: application to reductive dehalogenation in a bioaugmented soil column. Geomicrobiology Journal 2007;24(3-4):365-378. |
R828772 (Final) |
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Ruiz-Haas P, Ingle J. Monitoring of redox state in a dechlorinating culture with immobilized redox indicators. JOURNAL OF ENVIRONMENTAL MONITORING 2009;11(5):1028-1036 |
R828772 (Final) |
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Sabalowsky A, Semprini L. Trichloroethene and cis-1,2-dichloroethene Concentration-Dependent Toxicity Model Simulates Anaerobic Dechlorination at High Concentrations:I. Batch-Fed Reactors. BIOTECHNOLOGY AND BIOENGINEERING 2010;107(3):529-539. |
R828772 (Final) |
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Sabalowsky A, Semprini L. Trichloroethene and cis-1,2-dichloroethene concentration-dependent toxicity model simulates anaerobic dechlorination at high concentrations. II:continuous flow and attached growth reactors. BIOTECHNOLOGY AND BIOENGINEERING 2010;107(3):540-549. |
R828772 (Final) |
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Sayavedra-Soto LA, Doughty DM, Kurth EG, Bottomley PJ, Arp DJ. Product and product-independent induction of butane oxidation in Pseudomonas butanovora. FEMS Microbiology Letters 2005;250(1):111-116. |
R828772 (Final) |
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Schroth MH, Istok JD. Approximate solution for solute transport during spherical-flow push-pull tests. Ground Water 2005;43(2):280-284. |
R828772 (2005) R828772 (Final) |
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Semprini L, Dolan ME, Mathias MA, Hopkins GD, McCarty PL. Laboratory, field, and modeling studies of bioaugmentation of butane-utilizing microorganisms for the in situ cometabolic treatment of 1,1-dichloroethene, 1,1-dichloroethane, and 1,1,1-trichloroethane. Advances in Water Resources 2007;30(6-7):1528-1546. |
R828772 (Final) |
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Semprini L, Dolan ME, Mathias MA, Hopkins GD, McCarty PL. Bioaugmentation of butane-utilizing microorganisms for the in situ cometabolic treatment of 1,1-dichloroethene, 1,1-dichloroethane, and 1,1,1-trichloroethane. European Journal of Soil Biology 2007;43(5-6):322-327. |
R828772 (Final) |
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Skinner KM, Martinez-Prado A, Hyman MR, Williamson KJ, Ciuffetti LM. Pathway, inhibition and regulation of methyl tertiary butyl ether oxidation in a filamentous fungus, Graphium sp. Applied Microbiology and Biotechnology 2008;77(6):1359-1365. |
R828772 (Final) |
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Sriwatanapongse W, Reinhard M, Klug CA. Reductive hydrodechlorination of trichloroethylene by palladium-on-alumina catalyst:13C solid-state NMR study of surface reaction precursors. Langmuir 2006;22(9):4158-4164. |
R828772 (Final) |
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Taylor AE, Dolan ME, Bottomley PJ, Semprini L. Utilization of fluoroethene as a surrogate for aerobic vinyl chloride transformation. Environmental Science & Technology 2007;41(18):6378-6383. |
R828772 (Final) |
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Taylor A, Arp D, Bottomley P, Semprini L. Extending the alkene substrate range of vinyl chloride utilizing Nocardioides sp strain JS614 with ethene oxide. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 2010;87(6):2293-2302. |
R828772 (Final) |
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Taylor A, Bottomley P, Semprini L. Contrasting growth properties of Nocardioides JS614 on three different vinyl halides. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 2018;102(4):1859-1867. |
R828772 (Final) |
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Yang Y, McCarty PL. Comparison between donor substrates for biologically enhanced tetrachloroethene DNAPL dissolution. Environmental Science & Technology 2002;36(15):3400-3404. |
R828772 (2002) R828772 (Final) |
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Yeager CM, Bottomley PJ, Arp DJ. Requirement of DNA repair mechanisms for survival of Burkholderia cepacia G4 upon degradation of trichloroethylene. Applied and Environmental Microbiology 2001;67(12):5384-5391. |
R828772 (2002) R828772 (Final) |
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Yeager CM, Bottomley PJ, Arp DJ. Cytotoxicity associated with trichloroethylene oxidation in Burkholderia cepacia G4. Applied and Environmental Microbiology 2001;67(5):2107-2115. |
R828772 (2002) R828772 (Final) R825689C027 (Final) |
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Yeager CM, Arthur KM, Bottomley PJ, Arp DJ. Trichloroethylene degradation by toluene-oxidizing bacteria grown on non-aromatic substrates. Biodegradation 2004;15(1):19-28. |
R828772 (2003) R828772 (2004) R828772 (Final) R828772C010 (2005) |
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Yu S, Semprini L. Comparison of trichloroethylene reductive dehalogenation by microbial communities stimulated on silicon-based organic compounds as slow-release anaerobic substrates. Water Research 2002;36(20):4985-4996. |
R828772 (2002) R828772 (Final) R828772C001 (2001) |
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Yu S, Semprini L. Kinetics and modeling of reductive dechlorination at high PCE and TCE concentrations. Biotechnology and Bioengineering 2004;88(4):451-464. |
R828772 (2004) R828772 (Final) |
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Yu S, Dolan ME, Semprini L. Kinetics and inhibition of reductive dechlorination of chlorinated ethylenes by two different mixed cultures. Environmental Science & Technology 2005;39(1):195-205. |
R828772 (2003) R828772 (Final) R828772C012 (2005) |
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Yu S, Semprini L. Enhanced reductive dechlorination of PCE DNAPL with TBOS as a slow-release electron donor. JOURNAL OF hazardous MATERIALS 2009;167(1-3):97-104. |
R828772 (Final) |
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Supplemental Keywords:
RFA, Scientific Discipline, Air, Waste, Water, POLLUTANTS/TOXICS, air toxics, Contaminated Sediments, Environmental Chemistry, Chemicals, Brownfields, Hazardous Waste, Ecology and Ecosystems, Groundwater remediation, Hazardous, Environmental Engineering, sediment treatment, brownfield sites, environmental hazards, advanced treatment technologies, air pollutants, NAPL, chemical wastes, in situ remediation, in situ treatment, contaminant dynamics, ambient air, VOCs, contaminated sediment, palladium catalysis, chemical contaminants, emissions, contaminated soil, in-situ treatment of chlorinated solvents, remediation, treatment, atmospheric aerosols, contaminated groundwater, chlorinated VOCs, NAPLs, technology transfer, Volatile Organic Compounds (VOCs), contaminated aquifers, air emissions, VOC remediation, chlorinated solvents, groundwater, TCE, bioremediationRelevant Websites:
http://wrhsrc.oregonstate.edu/ Exit
http://tosc.oregonstate.edu/TAB/index.htm Exit
http://tosc.oregonstate.edu/ Exit
Progress and Final Reports:
Original Abstract Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
R828772C001 Developing and Optimizing Biotransformation Kinetics for the Bio- remediation of Trichloroethylene at NAPL Source Zone Concentrations
R828772C002 Strategies for Cost-Effective In-situ Mixing of Contaminants
and Additives in Bioremediation
R828772C003 Aerobic Cometabolism of Chlorinated Aliphatic Hydrocarbon Compounds with Butane-Grown Microorganisms
R828772C004 Chemical, Physical, and Biological Processes at the Surface of Palladium Catalysts Under Groundwater Treatment Conditions
R828772C006 Development of the Push-Pull Test to Monitor Bioaugmentation
with Dehalogenating Cultures
R828772C007 Development and Evaluation of Field Sensors for Monitoring
Bioaugmentation with Anaerobic Dehalogenating Cultures for In-Situ Treatment of
TCE
R828772C008 Training and Technology Transfer
R828772C009 Technical Outreach Services for Communities (TOSC) and Technical Assistance to Brownfields Communities (TAB) Programs
R828772C010 Aerobic Cometabolism of Chlorinated Ethenes by Microorganisms that Grow on Organic Acids and Alcohols
R828772C011 Development and Evaluation of Field Sensors for Monitoring Anaerobic Dehalogenation after Bioaugmentation for In Situ Treatment of PCE and TCE
R828772C012 Continuous-Flow Column Studies of Reductive Dehalogenation with Two Different Enriched Cultures: Kinetics, Inhibition, and Monitoring of Microbial Activity
R828772C013 Novel Methods for Laboratory Measurement of Transverse Dispersion in Porous Media
R828772C014 The Role of Micropore Structure in Contaminant Sorption and Desorption
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.