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Full-Text Articles in Earth Sciences
Environmental Impact Of The Three Kids Mine Tailings, Henderson, Nv, Ji Hye Park
Environmental Impact Of The Three Kids Mine Tailings, Henderson, Nv, Ji Hye Park
UNLV Theses, Dissertations, Professional Papers, and Capstones
This research focused on the distribution of the Three Kids Mine tailings in surface soils in and around the mine in Henderson, Nevada. It is situated next to the communities of Calico Ridge and Lake Las Vegas Resort, and, just the west of the Lake Mead Recreation area. Even though the mine has been inactive for almost 50 years (1917-1961), tailing piles and other sources of contamination on the mine are currently exposed to the atmosphere. In this study, surface soil samples were collected along eight transects emanating from the center of Three Kids Mine tailing piles up to five …
Desorption Hysteresis In Five Ion Exchanged Montmorillonites, Jerry Paul Fairley
Desorption Hysteresis In Five Ion Exchanged Montmorillonites, Jerry Paul Fairley
UNLV Theses, Dissertations, Professional Papers, and Capstones
It is generally believed that the formation of recalcitrant (slowly desorbing) fractions of volatile organic compounds (VOCs) in soils is due to diffusion of compounds to sorption sites inaccessible to bulk fluid. The exact nature of these sites, however, is not well understood. In clay minerals, researchers favor two probable areas for the storage of persistent contamination; sites between the clay lamella, or sites with clay particle aggregates.
To test the hypothesis that recalcitrant fractions are formed in interlamellar spaces, a Na/Ca Montmorillonite (Smectite) was ion exchanged with five different cations (K+, Na+, Ca+, …