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Full-Text Articles in Physical Sciences and Mathematics
Insights Into Biogeophysical Signatures Using Polarization Force Microscopy, Elizabeth Bartosik
Insights Into Biogeophysical Signatures Using Polarization Force Microscopy, Elizabeth Bartosik
All Theses
The success of bioremediation strategies is dependent upon effective monitoring of microorganisms in the subsurface. Induced polarization (IP) may represent a cost-effective, complementary technique to existing borehole-based microbe detection schemes. Recent studies show a significant, yet poorly understood IP effect associated with the presence of bacteria in aqueous and porous media. This effect is believed to be rooted in the physicochemical surface interactions between cells and minerals which we probe using polarization force microscopy. Polarization force experiments were conducted on a hydrated mica surface using the gram positive bacterium Bacillus subtilis and the gram negative bacterium Escherichia coli. On all …
Evaluation Of A Pilot-Scale Constructed Wetland Treatment System For Ash Basin Water, Lane Dorman
Evaluation Of A Pilot-Scale Constructed Wetland Treatment System For Ash Basin Water, Lane Dorman
All Theses
This investigation examined the feasibility of using surface-flow constructed wetland treatment systems (CWTSs) to decrease the concentration and bioavailability of targeted constituents of concern (COC) in ash basin water. Ash basin water results from hydraulic transport (sluicing) of coal ash produced during thermoelectric power production. During the sluicing process, potentially toxic trace elements contained within coal ash may be transferred to the aqueous phase and subsequently introduced to aquatic receiving systems. COC in ash basin water were identified by a risk quotient method in order to determine biogeochemical conditions needed within wetland reactors for reducing the aqueous concentration and bioavailability …
Assessing The Impact Of Water Harvesting On Water Resources, Jennifer Oblinger
Assessing The Impact Of Water Harvesting On Water Resources, Jennifer Oblinger
All Theses
Clean water supplies, like all natural resources, are becoming scarce all over the world, but especially in developing countries where special interest groups (such as city governments, commercial farmers, other villages downstream, etc.) fight over water rights. The Foundation for Ecological Security (FES) is a non-government organization in India whose mission is to restore degraded lands through cooperation with rural villages. In order to increase the water supply to the ecosystem, FES constructs water harvesting structures (WHS) which impound rainfall, water that would have otherwise runoff and contributed to erosion, in surface storage. This study was conducted to assess the …