![[logo] US EPA](https://webarchive.library.unt.edu/eot2008/20081105232451im_/http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Rocky Mountain Regional Hazardous Substance Research Center
EPA Grant Number: R829588Center: HSRC - Rocky Mountain Regional Hazardous Substance Research Center for Remediation of Mine Waste Sites
Center Director: Shackelford, Charles D.
Title: Rocky Mountain Regional Hazardous Substance Research Center
Investigators: Woods, Sandra L.
Institution: Colorado State University
EPA Project Officer: Lasat, Mitch
Project Period: April 15, 2002 through April 14, 2004
Project Amount: $242,500
RFA: Hazardous Substance Research Centers - HSRC (2001)
Research Category: Hazardous Waste/Remediation
Description:
Objective:The proposed Center will focus on the geochemical, biological, hydrological/mineralogical and engineering aspects of environmental problems associated with mining and mine wastes with the goal of developing new or improved methods or technologies that are cost effective and lead to clean ups that are protective of human health and the environment. A common theme among these environmental problems is contamination of all media (air, ground water, soil, sediments, and surface water) resulting from a host of metals, primarily As, Cd, Cu, Mn, Mo, Pb, and Zn, and a wide variety of sources (e.g., acid drainage from adits and sulfide bearing waste piles, exposed ore zones, heap-leach spoils, mine waste piles and sediments, slag piles, fluvial tailings deposits, and tailings and waste rock piles).
The types of contamination and the specific processes required to address mine waste problems are identified within the structure of five focus areas: (1) site characterization and contaminant transport/transformation; (2) surface water and sediment transport; (3) treatment processes; (4) technologies; and (5) ecological and human health toxicity. Each of these focus areas is an essential component of the remediation process, and will include basic and applied research. Mathematical and physical models will be used to better understand processes and to help extend the results of the basic research to field demonstrations and applications. Training, technology transfer and outreach programs will focus on the development of new technologies; these programs will provide educational information to allow communities to make informed decisions concerning environmental contamination; and they will provide technical assistance to communities and other stakeholders with an ultimate goal of redeveloping brownfields sites.
Approach:Project 1 will focus on understanding and quantifying the effects of natural organic matter (NOM) on the toxicity, bioavailability, transport and transformations of As and Se in aquatic systems. Project 2 will focus on surface water and sediment transport, with an emphasis on the fate and transport of metals in rivers from mining wastes, to develop a predictive scientific methodology for watershed rehabilitation strategies and Total Maximum Daily Loads. Project 3 will evaluate the effect of organic matter characteristic and type on organic products produced by microbial populations, on microbial population distributions, and metal speciation to improve performance of microbially active permeable reactive barriers. Project 4 will evaluate the effect of organic matter characteristic and type on organic products produced by microbial populations, on microbial population distributions, and metal speciation to characterize the recovery of a specific stream ecosystem from mining pollution.
Expected Results:The results of projects 1, 2 and 4 will directly support risk assessments related to environmental impacts of mine waste sites through an improved understanding of the bioavailability, transport, and ecological impacts, respectively, of metals emanating from such sites. Project 3 will improve our ability to remediate these impacts based on the cleanup goals established from such risk assessments. Research, technology transfer, and outreach objectives will be achieved through multi-disciplinary teams spanning multiple institutions, linkages to existing HSRC's, and a wide variety of information transfer media.
Relevant Web Sites:
Collateral grants address outreach activities related to Brownfields. This grant will also be the vehicle for future additional federal funds, in addition to those committed for core grants, for supporting research and outreach activities at the Center.
Core Grant: R829515
Journal Articles: 21 Displayed | Download in RIS Format
| Other center views: | All 191 publications | 21 publications in selected types | All 21 journal articles |
| Type | Citation | ||
|---|---|---|---|
|
|
Bednar AJ, Garbarino JR, Ranville JF, Wildeman TR. Effects of iron on arsenic speciation and redox chemistry in acid mine water. Journal of Geochemical Exploration 2005;85(2):55-62. |
R829515 (2005) |
not available |
|
|
Clark JL, Clements WH. The use of in situ and stream microcosm experiments to assess population and community-level responses to metals. Environmental Toxicology and Chemistry. |
R829515 (2005) |
not available |
|
|
Clark JL, Clements WH. The use of in situ and stream microcosm experiments to assess population-and community-level responses to metals. Environmental Toxicology and Chemistry 2006;25(9):2306-2312. |
R829515 (Final) |
|
|
|
Clements WH. Small-scale experiments support causal relationships between metal contamination and macroinvertebrate community responses. Ecological Applications 2004;14(3):954-967. |
R829515 (2003) R829515 (2004) R829515 (Final) |
|
|
|
Hemsi PS, Shackelford CD. An evaluation of the influence of aquifer heterogeneity on permeable reactive barrier design. Water Resources Research 2006;42(W03402), doi:10.1029/2005WR004629. |
R829515 (2005) R829515 (Final) |
|
|
|
Hemsi PS, Shackelford CD, Figueroa LA. Modeling bioreactor experiments for iron precipitation based on sulfate reduction and decomposition of organic solids. Journal of Environmental Quality . |
R829515 (2005) |
not available |
|
|
Hemsi PS, Shackelford CD, Figueroa LA. Modeling the influence of decomposing organic solids on sulfate reduction rates for iron precipitation. Environmental Science & Technology 2005;39(9):3215-3225. |
R829515 (2004) R829515 (2005) R829515 (Final) |
|
|
|
Hemsi P, Shackelford C. Influence of aquifer heterogeneity on permeable reactive barrier design. Water Resources Research 2004. |
R829515 (2004) |
not available |
|
|
Hong H, Pruden A, Reardon KF. Comparison of CE-SSCP and DGGE for monitoring a complex microbial community remediating mine drainage. Journal of Microbiological Methods 2007;69(1):52-64. |
R829515 (Final) |
|
|
|
Kashian DR, Prusha BA, Clements WH. Influence of total organic carbon and UV-B radiation on zinc toxicity and bioaccumulation in aquatic communities. Environmental Science & Technology 2004;38(23):6371-6376. |
R829515 (2004) R829515 (2005) R829515 (Final) R829640 (2003) R829640 (Final) |
|
|
|
Logan MV, Reardon KF, Figueroa LA, McLain JET, Ahmann DM. Microbial community activities during establishment, performance, and decline of bench-scale passive treatment systems for mine drainage. Water Research 2005;39(18):4537-4551. |
R829515 (2004) R829515 (2005) R829515 (Final) |
|
|
|
Paschke MW, Valdecantos A, Redente EF. Manganese toxicity thresholds for restoration grass species. Environmental Pollution 2005;135(2):313-322. |
R829515 (2004) R829515 (2005) R829515 (Final) |
|
|
|
Paschke MW, Perry LG, Redente EF. Zinc toxicity thresholds for reclamation forb species. Water, Air, & Soil Pollution 2006;170(1-4):317-330. |
R829515 (Final) |
|
|
|
Pruden A, Messner N, Pereyra L, Hanson RE, Hiibel SR, Reardon KF. The effect of inoculum on the performance of sulfate-reducing columns treating heavy metal contaminated water. Water Research 2007;41(4):904-914. |
R829515 (Final) |
|
|
|
Prusha BA, Clements WH. Landscape attributes, dissolved organic C, and metal bioaccumulation in aquatic macroinvertebrates (Arkansas River Basin, Colorado). Journal of the North American Benthological Society 2004;23(2):327-339. |
R829515 (2003) R829515 (2004) R829515 (Final) R829640 (2002) R829640 (2003) R829640 (Final) |
|
|
|
Redman AD, Macalady DL, Ahmann D. Natural organic matter affects arsenic speciation and sorption onto hematite. Environmental Science & Technology 2002;36(13):2889-2896. |
R829515 (2002) R829515 (Final) |
|
|
|
Ritter K, Aiken GR, Ranville JF, Jackson BP, Macalady DL. Evidence for aquatic Aarsenate-Fe(III)-natural organic matter complexation. Environmental Science and Technology . |
R829515 (2005) |
not available |
|
|
Ritter K, Ranville JF, Macalady DL. Properties of natural organic matter (NOM)important with respect to its interference with arsenate adsorption to goethite. Geochimica et Cosmochimica Acta . |
R829515 (2005) |
not available |
|
|
Ritter K, Macalady DL. The interference of natural organic matter (NOM) with arsenate adsorption to goethite under conditions of flow: the importance of both the adsorbed and solution-phase NOM. Geochimica et Cosmochimica Acta . |
R829515 (2005) |
not available |
|
|
Rojas R, Julien P. Washload erosion modeling with CASC2C-SED. Journal of Hydraulic Engineering. |
R829515 (2003) R829515 (2004) |
not available |
|
|
Velleux ML, Julien PY, Rojas-Sanchez R, Clements WH, England Jr JF. Simulation of metals transport and toxicity at a mine-impacted watershed: California Gulch, Colorado. Environmental Science & Technology 2006;40(22):6996-7004. |
R829515 (Final) |
|
acid mine drainage, remediation, mine waste, risk assessment. , Ecosystem Protection/Environmental Exposure & Risk, Toxics, TREATMENT/CONTROL, Scientific Discipline, Waste, RFA, Remediation, Geology, Waste Treatment, Bioavailability, Ecological Risk Assessment, Hazardous Waste, Environmental Engineering, Fate & Transport, Hydrology, Contaminant Candidate List, Hazardous, National Recommended Water Quality, Monitoring/Modeling, arsenic, copper, heavy metals, risk assessment, total maximum daily loads, water quality, contaminant transport models, fate and transport, mining impacted watershed, toxicity, fate and transport , microbial populations, environmental toxicant, lead, mining, mining wastes, acid mine drainage, cadmium, risk assessments, surface water, contaminated sediment, contaminant transport, contaminated sediments, manganese, metals, sediment transport, Zinc, contaminated soil, mine tailings, mathematical model, cleanup, hazardous waste treatment, modeling
Progress and Final Reports:
2002 Progress Report
Final Report