Reactive Transport Modeling of Metal Removal From Anaerobic Biozones

EPA Grant Number: R829515C010
Subproject: this is subproject number 010 , established and managed by the Center Director under grant R829515
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).

Center: HSRC - Rocky Mountain Regional Hazardous Substance Research Center for Remediation of Mine Waste Sites
Center Director: Shackelford, Charles D.
Title: Reactive Transport Modeling of Metal Removal From Anaerobic Biozones
Investigators: Figueroa, Linda , Shackelford, Charles D. , Wildeman, Thomas
Institution: Colorado School of Mines , Colorado State University
EPA Project Officer: Lasat, Mitch
Project Period: October 1, 2003 through September 30, 2006
RFA: Hazardous Substance Research Centers - HSRC (2001) Recipients Lists
Research Category: Hazardous Waste/Remediation , Land and Waste Management


The overall objective of this research project is to calibrate a model to describe the long-term microbial activity in anaerobic biozones. We postulate that the proper design point for anaerobic biozones is characterized by the quasi-steady state that develops after 6 to 9 months of operation. Thus, it is important to calibrate the model based on the post-startup conditions expected. Post-startup conditions are characterized microbially by a balanced consortium of cellulolytic fermenters, sulfate reducers, and methanogens as well as substrate availability via the hydrolysis of complex organic polymers (e.g., cellulose). The specific objectives of this research project are to:

  1. develop and test computer code for the heterogeneous component of a reactive transport model with a biomodule;
  2. calibrate model elements with controlled batch and column experiments;
  3. and validate the model with field columns under variable influent temperature and metal concentrations.

Supplemental Keywords:

Technical Outreach Services for Communities, TOSC, Technical Assistance to Brownfields, TAB, groundwater, industry sectors, waste, water, ecological risk assessment, ecology, ecosystems, ecology and ecosystems, environmental chemistry, environmental engineering, geology, geochemistry, toxicology, microbiology, hazardous, hazardous waste, mining-NAIC 21, selenium, acid mine drainage, acid mine runoff, aquatic ecosystems, arsenic, contaminant transport, contaminated sediments, contaminated marine sediment, contaminated waste sites, contaminated sites, contaminated soil, field monitoring, mining-impacted runoff, sediment transport, stream ecosystems, suspended sediment, sediments, mining, remediation, metal mobility, subsurface, extraction of metals, heavy metals, leaching of toxic metals, metal release, metal wastes, metals, metals-contaminated soil, mining wastes, remediation technologies, risk assessment,, RFA, Industry Sectors, Scientific Discipline, INTERNATIONAL COOPERATION, Waste, TREATMENT/CONTROL, Waste Treatment, Contaminated Sediments, Remediation, Mining - NAIC 21, Hazardous Waste, Bioremediation, Ecological Risk Assessment, Geology, Hazardous, Environmental Engineering, risk assessment, contaminant transport, contaminated waste sites, microbial degradation, anaerobic treatment, sulfate reducing bacterium, fate and transport modeling, suspended sediment, permeable reactive barrier, acid mine drainage, biodegradation, runoff, sediment transport, stream ecosystems, remediation technologies, natural organic matter, field monitoring, mining, treatment, transport models, aquatic ecosystems, treatment technology, anaerobic degradation, anaerobic microbial processes, groundwater, heavy metals, mining impacted watershed, mining wastes, metal removal, acid mine runoff

Progress and Final Reports:

  • 2004 Progress Report
  • 2005 Progress Report
  • Final

  • Main Center Abstract and Reports:

    R829515    HSRC - Rocky Mountain Regional Hazardous Substance Research Center for Remediation of Mine Waste Sites

    Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
    R829515C001 Redox Transformations, Complexation and Soil/Sediment Interactions of Inorganic Forms of As and Se in Aquatic Environments: Effects of Natural Organic Matter
    R829515C002 Fate and Transport of Metals and Sediment in Surface Water
    R829515C003 Metal Removal Capabilities of Passive Bioreactor Systems: Effects of Organic Matter and Microbial Population Dynamics
    R829515C004 Evaluating Recovery of Stream Ecosystems from Mining Pollution: Integrating Biochemical, Population, Community and Ecosystem Indicators
    R829515C005 Rocky Mountain Regional Hazardous Substance Research Center Training and Technology Transfer Program
    R829515C006 Technical Outreach Services for Communities and Technical Assistance to Brownfields
    R829515C007 Evaluation of Hydrologic Models for Alternative Covers at Mine Waste Sites
    R829515C008 Microbial Reduction of Uranium in Mine Leachate by Fermentative and Iron-Reducing Bacteria
    R829515C009 Development and Characterization of Microbial Inocula for High-Performance Passive Treatment of Acid Mine Drainage
    R829515C010 Reactive Transport Modeling of Metal Removal From Anaerobic Biozones
    R829515C011 Assessment of Electrokinetic Injection of Amendments for Remediation of Acid Mine Drainage
    R829515C012 Metal Toxicity Thresholds for Important Reclamation Plant Species of the Rocky Mountains
    R829515C013 An Improved Method for Establishing Water Quality Criteria for Mining Impacted Streams