Thermally Enhanced Bioremediation: A Preliminary Evaluation
B. S. Minsker,* J. Kosegi, D. E. Dougherty
Sponsor: University of Illinois

Dense nonaqueous phase liquids are common groundwater contaminants which are particularly difficult to remediate. In situ bioremediation is a promising remediation technology, but the success of this approach is limited by bioavailability. The microorganisms degrade contaminants in the aqueous phase; dissolution from the nonaqueous phase and desorption from the aquifer solids occur slowly, limiting the rate of biodegradation. We are developing a preliminary fate and transport model to evaluate the effectiveness of using heat to increase desorption, dissolution, and biodegradation. This study is the first step in a larger project to perform laboratory experiments and develop more detailed models of these processes.