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Reactive Transport Modeling of Metal Removal From Anaerobic Biozones
EPA Grant Number: R829515C010Subproject: 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)
Research Category: Hazardous Waste/Remediation
Description:
Objective: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:
- develop and test computer code for the heterogeneous component of a reactive transport model with a biomodule;
- calibrate model elements with controlled batch and column experiments;
- and validate the model with field columns under variable influent temperature and metal concentrations.
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,
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Industry Sectors, INTERNATIONAL COOPERATION, TREATMENT/CONTROL, Scientific Discipline, Waste, RFA, Remediation, Geology, Waste Treatment, Ecological Risk Assessment, Hazardous Waste, Environmental Engineering, Contaminated Sediments, Hazardous, Mining - NAIC 21, Bioremediation, heavy metals, risk assessment, runoff, treatment, transport models, biodegradation, microbial degradation, mining impacted watershed, redox, fate and transport modeling, contaminated waste sites, mining, mining wastes, stream ecosystems, acid mine runoff, suspended sediment, permeable reactive barrier, acid mine drainage, groundwater, metal removal, remediation technologies, contaminant transport, natural organic matter, anaerobic microbial processes, aquatic ecosystems, sediment transport, field monitoring, anaerobic degradation, sulfate reducing bacterium, treatment technology
Progress and Final Reports:
2004 Progress Report
2005 Progress Report
Main Center Abstract and Reports:
R829515 HSRC - Rocky Mountain Regional Hazardous Substance Research Center for Remediation of Mine Waste Sites