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Metals Removal by Constructed Wetlands
EPA Grant Number: R828770C005Subproject: this is subproject number 005 , established and managed by the Center Director under grant R828770
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
Center: HSRC (2001) - Midwest Hazardous Substance Research Center
Center Director: Banks, M. Katherine
Title: Metals Removal by Constructed Wetlands
Investigators: Fitch, Mark W. , Burken, Joel
Institution: University of Missouri - Rolla
EPA Project Officer: Lasat, Mitch
Project Period: October 1, 2001 through September 30, 2004
Project Amount: Refer to main center abstract for funding details.
RFA: Hazardous Substance Research Centers - HSRC (2001)
Research Category: Hazardous Waste/Remediation
Description:
Objective:Lab-scale constructed wetlands have proven able to treat mine drainage, negating toxicity and removing metals from the site. There remains, however, a need to establish the wetlands' ability to remove metals in the long term, including knowledge of the fate of metals in the wetlands. More fundamentally, effective and proven design criteria do not exist for constructed wetlands for metals removal. The goal of this research is to evaluate the capacity for constructed wetlands to treat lead mine drainage, including determination of metal geochemistry in the wetland substrate, and to propose and validate design criteria for such wetlands. Lead mines are of significant interest in Missouri, the nation's leading lead producer. Not only does the state have issues with existing production; more than 100 square miles of the state are listed on the EPA National Priorities List due to historical lead mining. Lead mine drainage differs from acid mine drainage in pH (the effluent is neutral), but this allows it to act as an excellent case study for examining the fate of metals removed from wastewater by constructed wetlands and for the application of this technology to specific industrial effluents. Approach:
The research will focus both on lab-scale and two existing field-scale wetlands, one treating lead mine effluent and the other treating lead contaminated machining wastewater. Based on the rates of removal and wetland hydraulics, design equations will be proposed. These design equations will be validated by application at the lab scale and at the field scale, if possible. Publications and Presentations:
Publications have been submitted on this subproject: View all 9 publications for this subproject | View all 164 publications for this center
Journal Articles:Journal Articles have been submitted on this subproject: View all 2 journal articles for this subproject | View all 16 journal articles for this center
Supplemental Keywords:Lead mine drainage, constructed wetlands, metal geochemistry. , Industry Sectors, Toxics, Water, Scientific Discipline, Waste, RFA, Remediation, Wastewater, Engineering, Chemistry, & Physics, Hazardous Waste, Environmental Engineering, Hydrology, Hazardous, 33/50, Mining - NAIC 21, heavy metal contamination, heavy metals, industrial wastewater, wastewater treatment, wastewater remediation, aqueous waste streams, constructed wetlands, lead, mining wastes, aqueous waste stream, acid mine drainage, metal removal, aqueous waste, effluents, lead & lead compounds, metal wastes, metals, hazardous waste treatment, metals removal, alternative technology
Progress and Final Reports:
2002 Progress Report
2003 Progress Report
Main Center Abstract and Reports:
R828770 HSRC (2001) - Midwest Hazardous Substance Research Center
Subprojects under this Center:
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
R828770C001 Technical Outreach Services for Communities
R828770C002 Technical Outreach Services for Native American Communities
R828770C003 Sustainable Remediation
R828770C004 Incorporating Natural Attenuation Into Design and Management
Strategies For Contaminated Sites
R828770C005 Metals Removal by Constructed Wetlands
R828770C006 Adaptation of Subsurface Microbial Biofilm Communities in Response to Chemical Stressors
R828770C007 Dewatering, Remediation, and Evaluation of Dredged Sediments
R828770C008 Interaction of Various Plant Species with Microbial PCB-Degraders
in Contaminated Soils
R828770C009 Microbial Indicators of Bioremediation Potential and Success