Lizette R. Chevalier

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This study examined the hypothesis that different inorganic carbon (IC) conditions enrich different ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB) populations by operating two laboratory-scale continuous-flow bioreactors fed with 15 and 100 mg IC/L, respectively. During this study, both bioreactors maintained satisfactory(More)
 Typically, teachers and counselors for grades 7-12 are not sufficiently educated in the areas of engineering to provide information and guidance to students. In addition, unconscious gender-related behavior by teachers in the classroom can dissuade female students from considering engineering even when there is an increased awareness of the discipline.(More)
 A website and CD-ROM based laboratory manual for the Environmental Engineering is being developed as a collaborative NSF-funded project between the Civil Engineering and the Interactive Multimedia Department at Southern Illinois University Carbondale. This presentation will be an overview the preliminary development and a summary of the formative(More)
Improper disposal, accidental spills and leaks of non-aqueous phase liquids (NAPL) such as gasoline, fuel oil and creosote result in long-term persistent sources of groundwater pollution. Column and 2-D tanks experiments were conducted to evaluate the use of surfactant-enhanced recovery of light non-aqueous phase liquids (LNAPL) in groundwater aquifers.(More)
Researchers in both environmental and petroleum engineering have conducted studies in one-dimensional columns to quantify the amount of residual nonaqueous phase liquids (NAPL) trapped in the porous media as a function of capillary, viscous and buoyancy forces. From these previous studies, it is proven that significant amounts of the original NAPL spill(More)
Traditional urban stormwater management involves rapid removal of stormwater through centralized conveyance systems of curb-gutter-pipe networks. This results in many adverse impacts on the environment including hydrological disruption, groundwater depletion, downstream flooding, receiving water quality degradation, channel erosion, and stream ecosystem(More)
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