In-Situ Biological Reclamation of Contaminated Ground Water
1992
Fant, Robert L.
Four triaxial permeability devices were designed and constructed for use in the Environmental Engineering Department at the Georgia Institute of Technology. These devices were used to determine how time and changing permeants affected a soil sample's hydraulic conductivity. Also the attenuation of the priority pollutant, 2,4-dichlorophenol, was studied. Two areas were looked at concerning attenuation, microbial degradation and adsorption. Microbes were grown in the laboratory and then placed into the soil samples. A permeant containing the pollutant, an oxidant, and nutrients was then passed through the soil sample with the microbes. The effects on the effluent concentration were then studied. Two breakthrough curves and two isotherm tests were run in an attempt to distinguish between microbial decay and adsorptive attenuation. Results of the attenuation studies unfortunately were inconclusive, but valuable knowledge was gained on the operation of and experimental procedures with the triaxial permeability devices.
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