Grantee Research Project Results
Final Report: Hazardous Substance Research Center–South and Southwest
EPA Grant Number: R828773Center: Organotypic Culture Models For Predictive Toxicology Center
Center Director: Rusyn, Ivan
Title: Hazardous Substance Research Center–South and Southwest
Investigators: Reible, Danny D. , Pardue, J. , Hughes, Joseph B , McCook, Leigh Fitzpatrick , Edge, Billy
Institution: Louisiana State University - Baton Rouge , Rice University , Texas A & M University , Georgia Institute of Technology , The University of Texas at Austin
Current Institution: Louisiana State University - Baton Rouge , Georgia Institute of Technology , Rice University , Texas A & M University , The University of Texas at Austin
EPA Project Officer: Aja, Hayley
Project Period: October 1, 2001 through September 30, 2006 (Extended to September 30, 2007)
Project Amount: $5,550,000
RFA: Hazardous Substance Research Centers - HSRC (2001) Recipients Lists
Research Category: Hazardous Waste/Remediation , Nanotechnology , Land and Waste Management
Objective:
The objective of the Hazardous Substance Research Center/South and Southwest HSRC/S&SW) is to provide basic and applied research, technology transfer and community outreach that address hazardous substance problems, especially the engineering management of contaminated sediments and other problems of special interest to communities within EPA Regions 4 and 6. Due to past and present toxic releases, these regions face serious hazardous substance problems and yet contain a significant fraction of the wetlands and inland waters found in the United States. The mission of the Center is to be a primary provider of the tools and process knowledge required to respond to the hazardous substance problems posing the greatest risks to people and the environment. The Center consists of Louisiana State University, as lead institution, Georgia Institute of Technology, Rice University, Texas A&M University. The broad range of expertise available to the research and outreach teams insure the ability of the Center to be truly community and problem-driven.
The Center was initially directed by Dr. Danny Reible, currently the Bettie Margaret Smith Chair of Environmental Health Engineering at the University of Texas. In 2004, he was joined by Dr. John Pardue, the Elizabeth Howell Stewart Professor of Civil & Environmental Engineering at Louisiana State University, as co-Director.
The research themes of the Center include 1) assessing the physical, chemical and biological availability of contaminants in sediments, 2) evaluating and enhancing biotransformation processes in sediments, and, 3) improving the science of risk management for contaminated sediments. The overriding objective is to improve the effectiveness of remedial approaches by seeking to understand and minimize contaminant release and exposure. Four broad research topics are under evaluation. These projects seek to 1) evaluate the bioavailability of desorption resistant contaminants, 2) develop improved approaches for in-situ containment and treatment, 3) assess contaminant losses during removal and episodic storm events, and, 4) evaluate phytoremediation for remediation in wetlands and confined disposal facilities (CDFs). During the period of Center operation, significant progress was made in each of these research areas. Notable accomplishments during the funding period of 2002-2007 include
- 24 book or book chapters
- 63 refereed journal articles and 12 Proceedings papers
- 102 technical presentations at national and international meetings
- 21 invited presentations
Summary/Accomplishments (Outputs/Outcomes):
The specific activities within the Center-supported research program are detailed in separate reports that are included herein. An updated list of all Center publications is also attached. Specific projects conducted by the Center included
- Contaminant Release During Removal and Resuspension, Mason B. Tomson, Louis J. Thibodeaux, and Amy T. Kan, with Rice University, TX and Louisiana State University, Baton Rouge, LA.
- Bioavailability of desorption-resistant contaminants, Danny D. Reible and John W. Fleeger , University of Texas and Louisiana State University
- Phytoremediation in wetlands and confined disposal facilities (CDFs), Dr. John H. Pardue, Dr. William Moe, Louisiana State University
- In-situ Containment and Treatment: Engineering Cap Integrity and Reactivity, Joseph B. Hughes, Kalliat T Valsaraj, Georgia Institute of Technology and Louisiana State University
- Structure-Performance Relationship for Bentonite-Cement Composite as a Material for in-situ capping of contaminated underwater sediments, Mark R. Wiesner, Rice University
- In-Situ Containment and Treatment: Engineering Cap Integrity and Reactivity, Billy L. Edge, Texas A&M University
“Contaminant Release During Removal and Resuspension” focused on the metals release from sediments resuspended as a result of dredging or storm events. More than 99% of the AVS is oxidized in 6 days of aeration. It is clear that the resuspension of anoxic sediment in oxic waters not only induces heavy metal release to the aqueous phase, but alters their binding form in the sediment as well. Zn, Pb, Ni, Co, and Cd transformation from strongly bonded species (oxidic, cabonatic, sulfidic) to more weakly bonded species (exchangeable) would increase the mobility and bioavailability of these metals in the aquatic environment. Over extended periods of dredging, the change in binding forms of the solid phase is likely a bigger concern than that in the solution phase. A new bioavailability test for heavy metals was developed and the test was used to determine the bioavailability of Anacostia sediment during resuspension. As shown in the previous results, the aqueous phase heavy metal can be readsorbed onto the newly formed ferric oxyhydroxides. Therefore, a conventional test, e.g. DRET, will not be adequate to measure the bioavailability of heavy metal during dredging. The proposed test allows for the resin to be in direct contact with the sediment and therefore a better assay to quantify the bioavailability of heavy metal.
“Bioavailability of desorption-resistant contaminants” was designed to evaluate the bioavailability of the desorption-resistant fraction of hydrophobic organic contaminants using uptake and accumulation in tubificid oligochaetes. The results of the experimental program support the view that measurements or predictions of porewater concentrations can predict steady state uptake of partitioning hydrophobic organic contaminants such as PAHs and PCBs in tubificid oligochaetes. That is, measures of physicochemical availability can be used directly to predict bioavailability. This was observed regardless of whether contaminant exposure was primarily by absorption from porewater (as with less hydrophobic compounds such as phenanthrene) or by absorption from ingested sediment (as with more hydrophobic compounds such as pyrene or benzo[a]pyrene). The kinetics of uptake were much different in the two scenarios but the steady state accumulation was still governed by measurements of porewater concentrations. It is postulated that organisms cannot accumulate more contaminants than predicted by thermodynamic equilibrium with porewater regardless of route of exposure. In summary, the effects of partitioning organic compounds on at least the benthic organisms studied are not correlated with bulk sediment concentration because desorption resistance and limited availability. This suggests that regulatory standards based upon porewater concentrations would be more indicative of potential exposure and uptake in these organisms.
“Phytoremediation in wetlands and confined disposal facilities (CDFs)” was designed to develop a scientific basis for a plant-based remedial approach for sediments contaminated with chlorinated organic compounds. The objectives of the proposed study were to:
- Define the biodegradation potential of chlorobenzenes and chlorinated solvents by quantifying biogeochemical conditions in the rhizosphere. Key conditions include the specific detrital decomposition products (organic acids and hydrogen) and microbial populations that develop on and adjacent to the plant root.
- Define other potential fate mechanisms: plant uptake and volatilization by studying the dynamics of plant uptake of chlorobenzenes in wetland sediments.
Two hypotheses were supported by the research
- By vegetating sediment contaminated with chlorinated organic compounds, below ground root matter will serve as source of H2, overcoming redox potential limitations in sediments
- Reductive dechlorination is enhanced in vegetated sediments because the root surface serves as a location of enhanced activities of dehalorespiring and other degrading microbial populations
The research is expected to provide support for the wetland management of refractory chlorinated contaminants in sediments (e.g. in confined disposal facilities).
“In-situ Containment and Treatment: Engineering Cap Integrity and Reactivity” was designed to evaluate the effects and potential of biologically active caps. The purpose of reactive caps is to remove contaminants from the aqueous phase during transport through the cap, theoretically eliminating break through into the overlying water. Thus, unlike a traditional sand cap, they can be applied at sites subject to advective flow. To date, the development of reactive caps has focused on physicochemical methods of contaminant removal such as abiotic reactions or sorption. One limitation of such physicochemical reactive caps is that they are subject to fouling (abiotic and biological), which can reduce reactivity with time. A second limitation of physicochemical reactive caps is that they inherently possess a finite capacity for reaction/sorption, creating the need to replenishment of the reactive/sequestering material over time to maintain reactivity. The development of a reactive cap that can continuously treat mobile contaminants would eliminate the risk of contaminant break through due to loss of reactivity, decrease the possibility of contaminant resuspension during maintenance operations, and potentially lower treatment costs. The emplacement of microorganisms capable of contaminant biotransformation within a cap provides an opportunity to meet this need. The project focused on the evaluation of transport, reactivity and fate of chlorinated solvents, for example, as in a contaminated groundwater plume intersecting a river bottom. The work showed that a cap can be an effective biological reactor although delivery of appropriate nutrients or amendments to maintain the reactivity at high rates may not be feasible. The work also examined the effects of gas generation as a byproduct of biological activity and the implications of gas migration for contaminant release. The results showed that very high gas generation rates would generally be required for significant contaminant migration.
The final two projects, “Structure-Performance Relationship for Bentonite-Cement Composite as a Material for in-situ capping of contaminated underwater sediments” and “In-Situ Containment and Treatment: Engineering Cap Integrity and Reactivity”, examined the stability of a conventional cap under extreme storm event forcing and technologies for stabilizing a cap with a bentonite cement. A two-dimensional (2D) parallel model of hydrodynamic and sediment transport coupled with a wave model was used to study cap stability. A two-dimensional hydrodynamic model is used to calculate the water circulation within the bay. The hydrodynamic model is based on the two-dimensional (2D) parallel version of Advanced Circulation ((P)ADCIRC) Hydrodynamic Model (Luettich and Westerink, 2002), with extended Sediment Transport module. The sediment transport module in ADCIRC applies suspended sediment transport for both cohesive and non-cohesive type of sediment. An example application of the extended ADCIRC2D Transport coupled to SWAN was assessed in an actual estuary, Matagorda Bay, Texas and used to evaluate stability of a conventional sand cap during a major storm event, that of Hurricane Carla (1961). Although the Bay was largely depositional, the model was capable of predicting erosion up to 30 cm in isolated areas, potentially compromising an unarmored cap in those areas.
“Structure-Performance Relationship for Bentonite-Cement Composite as a Material for in-situ capping of contaminated underwater sediments” The objective of this work was to create sediment caps, tailored for strength and semi-permeable properties, from bentonite/cement composites. Carious cap microstructures were created by controlling post-depositional chemical processes in a cap. By judiciously choosing cement/bentonite and liquid /solid ratios of the composite, desired transport and mechanical properties of the reactive barrier may be attained. Controllable permeability and the capacity of cementitious materials to bind heavy metals make such barriers especially attractive. Bentonite/cement composite was proposed as a new capping material for the isolation of contaminated sediments. By controlling post-depositional chemical processes in a forming composite it is possible to arrive at different cap microstructures leading to different mechanical and transport characteristics of the capping layer. Cement fraction and the extent of hydration of the composite appear to be the most important factors determining the overall performance of the cap.
In addition, the research program has seen application at a number of sites. The Center has attracted outside research funds to:
- Conduct a demonstration program on active capping in the Anacostia River, Washington DC
- Evaluate the fate and transport of mercury in contaminated sediments with specific application to Pompton Lake, NJ
- Evaluate the feasibility of capping very soft, NAPL containing sediments with specific application to a site in Lake Charles, LA
- Evaluate organoclay as an active capping media for the control of NAPL contaminants in support of the Oregon DEQ’s efforts to remediate the McCormick and Baxter Creosotes Site in Portland, OR
- Evaluate biodegradation in sediment caps in Onondaga Lake, Syracuse, NY
- Conduct an Advanced Research Workshop supported by the North Atlantic Treaty Organization held in May 2005 on the Assessment and Remediation of Contaminated Sediments.
These programs are in addition to the a variety of projects attracted by individual investigators in the Center that build upon the research products of the Center but are administratively monitored outside of the Center. Many of the investigators within the Center are also routinely asked to apply their expertise to provide advice on remedy evaluation and selection at a variety of contaminated sediments sites. In this capacity, we generally provide advice for the lead party which may be the responsible party or federal or state regulators. A partial list of specific sites where Center personnel have been asked to provide insight and support over the past year include
- Neponset River, Boston, MA
- Onondaga Lake, Syracuse NY
- Welch Creek, Martin County NC
- Grasse River, Massena NY
- Fox River, Green Bay WI
- Hudson River, Hastings NY
- Thea Foss Waterway, Tacoma WA
The research program is complimented by a technology transfer and outreach effort focused nationally on contaminated sediments and their management but regionally with respect to the broad range of hazardous substance issues that impact communities in the south and southwest. The technology transfer efforts disseminate the research advances of the Center via both print and electronic media. An up-to-date summary of the Center, including reports and other broader interest publications, can be found at http://www.hsrc-ssw.org/ Exit . The outreach efforts focus on providing environmentally troubled communities in the region technical assistance to enable them to better understand and participate in decisions being made about their hazardous substance problems. The outreach activities are driven by local concerns which often include visible problems in the air and soil and rarely driven by relatively low visibility sediment problems. The outreach programs have benefited 22 communities iin Region 4 and 19 in Region 6 over the period of the grant. The outreach programs include both the Technical Outreach Services to Communities (TOSC) (described separately herein) and a Technical Assistance for Brownfields (TAB) program (detailed in a separate report). Our TAB program was significantly expanded in this funding year by receipt of a grant to support direct assistance to communities as well as research activities that seek to guide Brownfields response efforts that extend beyond a single community.
Journal Articles: 63 Displayed | Download in RIS Format
Other center views: | All 279 publications | 92 publications in selected types | All 63 journal articles |
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Apitz SE, Davis JW, Finkelstein K, Hohreiter DW, Hoke R, Jensen RH, Jersak J, Kirtay VJ, Mack EE, Magar VS, Moore D, Reible D, Stahl Jr. RG. Assessing and managing contaminated sediments: part I, developing an effective investigation and risk evaluation strategy. Integrated Environmental Assessment and Management 2005;1(1):2-8. |
R828773 (Final) |
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Apitz SE, Davis JW, Finkelstein K, Hohreiter DW, Hoke R, Jensen RH, Jersak J, Kirtay VJ, Mack EE, Magar VS, Moore D, Reible D, Stahl Jr. RG. Assessing and managing contaminated sediments: part II, evaluating risk and monitoring sediment remedy effectiveness. Integrated Environmental Assessment and Management 2005;1(1):e1-e14. |
R828773 (Final) |
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Chai Y, Kochetkov A, Reible DD. Modeling biphasic sorption and desorption of hydrophobic organic contaminants in sediments. Environmental Toxicology and Chemistry 2006;25(12):3133-3140. |
R828773 (Final) |
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Chai Y, Kochetkov A, Reible DD. Desorption resistance of polycyclic aromatic hydrocarbons and duration of exposure. Environmental Toxicology and Chemistry 2006;25(11):2827-2833. |
R828773 (Final) |
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Chai Y, Kochetkov A, Reible DD. The use of coarse, separable, condensed-phase organic carbon particles characterize desorption resistance of polycyclic aromatic hydrocarbons in contaminated sediments. Environmental Toxicology and Chemistry 2007;26(7):1380-1385. |
R828773 (Final) |
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Chen W, Kan AT, Newell CJ, Moore E, Tomson MB. More realistic soil cleanup standards with dual-equilibrium desorption. Ground Water 2002;40(2):153-164. |
R828773 (2004) R828773 (Final) R828773C001 (2004) R828773C004 (2002) R828773C004 (2004) R826694C700 (Final) R831718 (Final) |
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Chen W, Lakshmanan K, Kan AT, Tomson MB. A program for evaluating dual-equilibrium desorption effects on remediation. Ground Water 2004;42(4):620-624. |
R828773 (2004) R828773 (Final) R828773C004 (2004) R825513C023 (Final) R825513C024 (Final) R831718 (2005) R831718 (Final) |
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Chen W, Cong L, Hu H, Zhang P, Li J, Feng Z, Kan AT, Tomson MB. Release of adsorbed polycyclic aromatic hydrocarbons under cosolvent treatment: implications for availability and fate. Environmental Toxicology and Chemistry 2008;27(1):112-118. |
R828773 (Final) R831718 (Final) |
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Cheng XK, Kan AT, Tomson MB. Uptake and sequestration of naphthalene and 1,2-dichlorobenzene by C60. Journal of Nanoparticle Research 2005;7(4-5):555-567. |
R828773 (2004) R828773 (Final) R828773C004 (2004) R831718 (2005) |
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Cheng X, Kan AT, Tomson MB. Naphthalene adsorption and desorption from aqueous C60 fullerene. Journal of Chemical and Engineering Data 2004;49(3):675-683. |
R828773 (2004) R828773 (Final) R828773C004 (2003) R828773C004 (2004) R831718 (2005) |
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Cheng X, Kan AT, Tomson MB. Study of C60 transport in porous media and the effect of sorbed C60 on naphthalene transport. Journal of Materials Research 2005;20(12):3244-3254. |
R828773 (Final) R831718 (2005) R831718 (Final) |
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Gao Y, Kan AT, Tomson MB. Critical evaluation of desorption phenomena of heavy metals from natural sediments. Environmental Science & Technology 2003;37(24):5566-5573. |
R828773 (2004) R828773 (Final) R828773C004 (2002) R828773C004 (2003) R828773C004 (2004) |
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Gao Y, Wahi R, Kan AT, Falkner JC, Colvin VL, Tomson MB. Adsorption of cadmium on anatase nanoparticles-effect of crystal size and pH. Langmuir 2004;20(22):9585-9593. |
R828773 (2004) R828773 (Final) R828773C004 (2003) R828773C004 (2004) R831718 (2005) |
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Gao Y, Kan AT, Tomson MB. Response to comment on "Critical evaluation of desorption phenomena of heavy metals from natural sediments". Environmental Science & Technology 2004;38(17):4703. |
R828773 (2004) R828773 (Final) R828773C004 (2004) R831718 (2005) |
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Gomez-Hermosillo C, Pardue JH, Reible DD. Wetland plant uptake of desorption-resistant organic compounds from sediments. Environmental Science & Technology 2006;40(10):3229-3236. |
R828773 (Final) |
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Gust KA, Fleeger JW. Exposure-related effects on Cd bioaccumulation explain toxicity of Cd–phenanthrene mixtures in Hyalella azteca. Environmental Toxicology and Chemistry 2005;24(11):2918-2926. |
R828773 (Final) |
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Gust KA. Joint toxicity of cadmium and phenanthrene in the freshwater amphipod Hyalella azteca. Archives of Environmental Contamination and Toxicology 2006;50(1):7-13. |
R828773 (Final) |
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Gust KA, Fleeger JW. Exposure to cadmium–phenanthrene mixtures elicits complex toxic responses in the freshwater tubificid oligochaete, Ilyodrilus templetoni. Archives of Environmental Contamination and Toxicology 2006;51(1):54-60. |
R828773 (Final) |
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Himmelheber DW, Pennell KD, Hughes JB. Natural attenuation processes during in situ capping. Environmental Science & Technology 2007;41(15):5306-5313. |
R828773 (Final) |
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Kan AT, Fu G, Tomson MB. Effect of methanol on carbonate equilibrium and calcite solubility in a gas/methanol/water/salt mixed system. Langmuir 2002;18(25):9713-9725. |
R828773 (2004) R828773 (Final) R828773C004 (2004) |
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Kan AT, Fu G, Tomson MB. Effect of methanol and ethylene glycol on sulfates and halite scale formation. Industrial & Engineering Chemistry Research 2003;42(11):2399-2408. |
R828773 (2004) R828773 (Final) R828773C004 (2003) R828773C004 (2004) |
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Kan AT, Fu G, Tomson MB, Al-Thubaiti M, Xiao AJ. Factors affecting scale inhibitor retention in carbonate-rich formation during squeeze treatment. SPE Journal 2004;9(3):280-289. |
R828773 (2004) R828773 (Final) R828773C001 (2004) R828773C004 (2004) |
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Kan AT, Fu G, Tomson MB. Adsorption and precipitation of an aminoalkylphosphonate onto calcite. Journal of Colloid and Interface Science 2005;281(2):275-284. |
R828773 (2004) R828773 (Final) R828773C004 (2004) R831718 (2005) |
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Kassenga GR, Pardue JH, Blair S, Ferraro T. Treatment of chlorinated volatile organic compounds in upflow wetland mesocosms. Ecological Engineering 2003;19(5):305-323. |
R828773C003 (2002) |
not available |
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Kassenga GR, Pardue JH. Effect of competitive terminal electron acceptor processes on dechlorination of cis-1,2-dichloroethene and 1,2-dichloroethane in constructed wetland soils. FEMS Microbiology Ecology 2006;57(2):311-323. |
R828773 (Final) |
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Kassenga G, Pardue JH, Moe WM, Bowman KS. Hydrogen thresholds as indicators of dehalorespiration in constructed treatment wetlands. Environmental Science & Technology 2004;38(4):1024-1030. |
R828773 (2004) R828773 (Final) R828773C003 (2003) |
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Lee S, Pardue JH, Moe WM, Valsaraj KT. Mineralization of desorption-resistant 1,4-dichlorobenzene in wetland soils. Environmental Toxicology and Chemistry 2003;22(10):2312-2322. |
R828773 (2004) R828773 (Final) R828773C003 (2003) |
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Lu X, Reible DD, Fleeger JW, Chai Y. Bioavailability of desorption-resistant phenanthrene to the oligochaete Ilyodrilus templetoni. Environmental Toxicology and Chemistry 2003;22(1):153-160. |
R828773 (2004) R828773 (Final) R828773C001 (2002) R828773C001 (2003) R828773C001 (2004) |
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Lu X, Reible DD. Linking sediment exposure with effects:modeling techniques, organic availability and uptake. International Journal of Sediment Research 2003;18(2):208-213. |
R828773 (2004) R828773 (Final) |
not available |
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Lu X, Reible DD, Fleeger JW. Relative importance of ingested sediment versus pore water as uptake routes for PAHs to the deposit-feeding oligochaete Ilyodrilus templetoni. Archives of Environmental Contamination and Toxicology 2004;47(2):207-214. |
R828773 (2004) R828773 (Final) R828773C001 (2003) |
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Lu X, Reible DD, Fleeger JW. Bioavailability and assimilation of sediment-associated benzo[a]pyrene by Ilyodrilus templetoni (oligochaeta). Environmental Toxicology and Chemistry 2004;23(1):57-64. |
R828773 (2004) R828773 (Final) R828773C001 (2003) R828773C001 (2004) |
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Lu X, Reible DD, Fleeger JW. Bioavailability of polycyclic aromatic hydrocarbons in field-contaminated Anacostia River (Washington, DC) sediment. Environmental Toxicology and Chemistry 2006;25(11):2869-2874. |
R828773 (Final) |
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McDonough KM, Murphy P, Olsta J, Zhu Y, Reible D, Lowry GV. Development and placement of a sorbent-amended thin layer sediment cap in the Anacostia River. Soil & Sediment Contamination 2007;16(3):313-322. |
R828773 (Final) |
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Murphy P, Marquette A, Reible D, Lowry GV. Predicting the performance of activated carbon-, coke-, and soil-amended thin layer sediment caps. Journal of Environmental Engineering-ASCE 2006;132(7):787-794. |
R828773 (Final) |
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Pandoe WW, Edge BL. Three-dimensional hydrodynamic model, study cases for quarter annular and idealized ship channel problems. Ocean Engineering 2003;30(9):1117-1135. |
R828773 (2004) R828773 (Final) R828773C002 (2002) R828773C002 (2003) R828773C002 (2004) |
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Pandoe WW, Edge BL. Cohesive sediment transport in the 3D-hydrodynamic-baroclinic circulation model: study case for idealized tidal inlet. Ocean Engineering 2004;31(17-18):2227-2252. |
R828773 (2004) R828773 (Final) R828773C002 (2004) |
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Priklonsky VI, Reible DD, Tyler JM. Consistent unconfined contaminated disposal facilities dike tidal flow and transport model. Environmental Modelling & Software 2005;20(9):1071-1079. |
R828773 (Final) |
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Ravikrishna R, Valsaraj KT, Thibodeaux LJ, Reible DD. Effects of oil and grease on the vaporization of organic compounds from contaminated sediments. Environmental Engineering Science 2002;19(2):101-113. |
R828773 (Final) |
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Reible DD, Garcia M. Contaminant processes in sediment. American Society of Civil Engineers (ASCE) Sedimentation Manual. |
R828773C001 (2002) R828773C001 (2003) |
not available |
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Reible D, Mohanty S. A levy flight-random walk model for bioturbation. Environmental Toxicology and Chemistry 2002;21(4):875-881. |
R828773 (2004) R828773 (Final) R828773C001 (2002) R828773C001 (2003) R828773C001 (2004) |
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Reible D, Hayes D, Lue-Hing C, Patterson J, Bhowmik N, Johnson M, Teal J. Comparison of the long-term risks of removal and in situ management of contaminated sediments in the Fox River. Soil & Sediment Contamination 2003;12(3):325-344. |
R828773 (Final) |
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Reible D, Lampert D, Constant D, Mutch Jr. RD, Zhu YW. Active capping demonstration in the Anacostia River, Washington, DC. Remediation Journal 2006;17(1):39-53. |
R828773 (Final) |
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Sanchez FF, Thibodeaux LJ, Valsaraj KT, Reible DD. Multimedia chemical fate model for environmental dredging. Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management 2002;6(2):120-128. |
R828773 (Final) |
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Tarabara VV, Wiesner MR. Effect of collision efficiency on the evolution of the surface of diffusion-limited deposits. Journal of Colloid and Interface Science 2001;237(1):150-151. |
R828773 (2004) R828773 (Final) R828773C002 (2003) R826694C620 (Final) |
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Tarabara VV, Pierrisnard F, Parron C, Bottero J-Y, Wiesner MR. Morphology of deposits formed from chemically heterogeneous suspensions: application to membrane filtration. Journal of Colloid and Interface Science 2002;256(2):367-377. |
R828773 (2004) R828773 (Final) R828773C002 (2002) R828773C002 (2003) R828773C002 (2004) |
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Tarabara VV, Hovinga RM, Wiesner MR. Constant transmembrane pressure vs. constant permeate flux: effect of particle size on crossflow membrane filtration. Environmental Engineering Science 2002;19(6):343-355. |
R828773 (2004) R828773 (Final) R828773C002 (2004) |
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Tarabara VV, Wiesner MR. Computational fluid dynamics modeling of the flow in a laboratory membrane filtration cell operated at low recoveries. Chemical Engineering Science 2003;58(1):239-246. |
R828773 (2004) R828773 (Final) R828773C002 (2004) |
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Tarabara VV, Koyuncu I, Wiesner MR. Effect of hydrodynamics and solution ionic strength on permeate flux in cross-flow filtration: direct experimental observation of filter cake cross-sections. Journal of Membrane Science 2004;241(1):65-78. |
R828773 (2004) R828773 (Final) R828773C002 (2004) |
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Tarabara VV, Wiesner MR. Physical and transport properties of bentonite-cement composites: a new material for in situ capping of contaminated underwater sediments. Environmental Engineering Science 2005;22(5):578-590. |
R828773C002 (2004) |
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Thibodeaux LJ, Valsaraj KT, Reible DD. Bioturbation-driven transport of hydrophobic organic contaminants from bed sediment. Environmental Engineering Science 2001;18(4):215-223. |
R828773 (2004) R828773 (Final) R828773C001 (2002) R828773C001 (2003) R828773C001 (2004) R825513C011 (Final) |
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Thibodeaux LJ, Huls H, Ravikrishna R, Valsaraj KT, Costello M, Reible DD. Laboratory simulation of chemical evaporation from dredge-produced sediment slurries. Environmental Engineering Science 2004;21(6):730-740. |
R828773 (Final) |
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Tomson MB, Fu G, Watson MA, Kan AT. Mechanisms of mineral scale inhibition. SPE Production & Facilities 2003;18(3):192-199. |
R828773 (2004) R828773 (Final) R828773C004 (2004) |
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Tomson MB, Kan AT, Fu G. Inhibition of barite scale in the presence of hydrate inhibitors. SPE Journal 2005;10(3):256-266. |
R828773 (Final) R831718 (2005) |
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Tomson MB, Kan AT, Fu G, Al-Thubaiti M, Shen D, Shipley HJ. Scale formation and prevention in the presence of hydrate inhibitors. SPE Journal 2006;11(2):248-258. |
R828773 (Final) R831718 (Final) |
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Tomson MB, Kan AT, Fu G, Cong L. Measurement of total alkalinity and carboxylic acid and their relation to scaling and corrosion. SPE Journal 2006;11(1):103-110. |
R828773 (Final) R831718 (2005) R831718 (Final) |
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Tomson MB, Kan AT, Fu G. Control of inhibitor squeeze through mechanistic understanding of inhibitor chemistry. SPE Journal 2006;11(3):283-293. |
R828773 (Final) R831718 (2005) R831718 (Final) |
Exit |
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Weimer ML, Constant WD. Hygro-Mole: a logging tool for determining moisture content in environmentally sensitive subsurface zones. Journal of Energy Resources Technology 2006;128(1):44-48. |
R828773 (2004) R828773 (Final) |
Exit |
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Work PA, Moore PR, Reible DD. Bioturbation, advection, and diffusion of a conserved tracer in a laboratory flume. Water Resources Research 2002;38(6):24-1–24-9. |
R828773 (2004) R828773 (Final) R828773C001 (2003) R828773C001 (2004) |
Exit Exit Exit |
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Yan L, Thompson KE, Valsaraj KT, Reible DD. In-situ control of DNAPL density using polyaphrons. Environmental Science & Technology 2003;37(19):4487-4493. |
R828773 (Final) |
Exit |
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Yang W, Duan L, Zhang N, Zhang C, Shipley HJ, Kan AT, Tomson MB, Chen W. Resistant desorption of hydrophobic organic contaminants in typical Chinese soils: implications for long-term fate and soil quality standards. Environmental Toxicology and Chemistry 2008;27(1):235-242. |
R828773 (Final) R831718 (Final) |
Exit |
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Yavuz CT, Mayo JT, Yu WW, Prakash A, Falkner JC, Yean S, Cong L, Shipley HJ, Kan A, Tomson M, Natelson D, Colvin VL. Low-field magnetic separation of monodisperse Fe3O4 nanocrystals. Science 2006;314(5801):964-967. |
R828773 (Final) R831718 (Final) |
Exit Exit |
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Yean S, Cong L, Yavuz CT, Mayo JT, Yu WW, Kan AT, Colvin VL, Tomson MB. Effect of magnetite particle size on adsorption and desorption of arsenite and arsenate. Journal of Materials Research 2005;20(12):3255-3264. |
R828773 (2004) R828773 (Final) R831718 (2005) R831718 (Final) |
Exit Exit |
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Yuan Q, Valsaraj KT, Reible DD, Willson CS. A laboratory study of sediment and contaminant release during gas ebullition. Journal of the Air & Waste Management Association 2007;57(9):1103-1111. |
R828773 (Final) |
Exit Exit |
Supplemental Keywords:
TOSC, TAB, sequestration, bioaccessibility, dredging and dredged materials, plant-based remediation, capping, hurricane,, RFA, Scientific Discipline, Geographic Area, Waste, Water, Contaminated Sediments, Environmental Chemistry, Analytical Chemistry, Hazardous Waste, Ecological Risk Assessment, Hazardous, Environmental Engineering, EPA Region, region 4, hazardous waste treatment, in situ remediation, fate and transport , bioavailability, biodegradation, contaminated sediment, contaminated soil, treatment, Region 6, contaminant management, phytoremediationProgress 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).
R828773C001 Bioturbation and Bioavailability of Residual, Desorption-Resistant
Contaminants
R828773C002 In-Situ Containment and Treatment of Contaminated Sediments: Engineering Cap Integrity and Reactivity
R828773C003 Phytoremediation in Wetlands and CDFs
R828773C004 Contaminant Release During Removal and Resuspension
R828773C005 HSRC Technology Transfer, Training, and Outreach
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.