Biodegradation Modeling of a Closed Landfill Site

by Sai K. R. Edavally,
Lawrence H. Woodbury,
G. Padmanabhan,

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water


The two-dimensional model, BIOPLUME II, was applied to the closed Becker County Landfill at Detroit township, Minnesota, to study the transport of hydrocarbons occurring at the site. The model was calibrated to September 1992 conditions. The results obtained in the calibration run were first used to simulate the natural biodegradation process and then with a biorestoration scheme. To achieve a 1.5 mg/l concentration of benzene, toulene, xylene (BTX) in groundwater, the model estimated a cleanup time of 2.3 years with an in-situ biorestoration scheme in operation. This modeling study served as a first approximation in a bioremediation project design. The two issues: (1) economic feasibility and (2) actual field biodegradation rates determination leave opportunities for further research.

Subject Headings: Two-dimensional models | Biological processes | Landfills | Non-renewable energy | Hydrologic models | Hydrocarbons | Groundwater pollution | United States | Detroit | Michigan | Minnesota

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