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Co And Cr Adsorption On Maghemite, Quartz, And Maghemite-Quartz Mixtures, Amy Troy
Co And Cr Adsorption On Maghemite, Quartz, And Maghemite-Quartz Mixtures, Amy Troy
Honors Theses
In aquifers and other natural systems, single mineral systems are rare. Solids are commonly heterogeneous, containing multiple minerals, and mineral interactions are expected. Mineral interactions such as formation of coatings and physical blocking of adsorption sites have the potential to significantly change the adsorption of ions onto solids. To investigate such interactions, batch experiments using Co(II) or Cr(VI) were conducted to compare adsorption edges of these sorbates on pure and mixed mineral systems. Specifically, sorption of 10-5 or 10-6 M Co(II) and Cr(VI) was measured as a function of pH, with a background electrolyte concentration of 0.01 M …
The Effects Of Eutrophication And Salinization On Methane Production In Urban And Rural Lakes, Rebecca Kiekhaefer
The Effects Of Eutrophication And Salinization On Methane Production In Urban And Rural Lakes, Rebecca Kiekhaefer
Honors Theses
Asylum lake is an urban lake in Kalamazoo, Michigan. The lake is located near the intersection of two major roadways which are heavily salted during the winter. Wintergreen lake is a rural lake that is on the property of the Kellogg Biological Station in Augusta, Michigan. The lake is surrounded by the Kellogg Bird Sanctuary and is relatively isolated from major roadways. Both lakes are eutrophic, Asylum lake because of high salinity and lack of turnover (Macleod, et aI., 2011) and Wintergreen lake because of high nutrient inputs (Threlkeld, 1979). Previous work suggests that road salt deicers can change the …