Caustic Waste - Soil Weathering Reactions and Their Impacts on Trace

Caustic Waste-Soil Weathering Reactions and Their Impacts on Trace Contaminant Migration and Sequestration

Metal extraction competence of plants on waste dumps of magnesite mine, Salem District, South India

An ex-situ experiment to assess the metal extractive potential of fourteen agriculture plants (Vigna unguiculata, Gossypium hirsutum, Jatropha curcas, etc.) was conducted on Magnesite mines which had above permissible levels of Cadmium and Lead. There was no much difference in the total chlorophyll a and b, carbohydrate and protein contents in the plants grown in the mining soil and adjacent co...

Are Minor and Trace Elements Useful Indicators of Chemical Weathering Processes and Flow-Routing in Subglacial Hydrological Systems?

In Alpine glacierised catchments, snowand icemelt are chemically enriched and modified during transit though subglacial hydrological systems by distinct bio-geochemical weathering reactions. The nature and extent of these reactions are dictated by waters source and meltwater routing. This chemical modification of meltwaters has been applied in hydrochemical and hydroglacial studies, based mainl...

Impacts of two best management practices on Pb weathering and leachability in shooting range soils.

This study investigated the impacts of two best management practices (BMPs) recommended by US Environmental Protection Agency on Pb weathering and leachability in shooting range soils. The two BMPs included replacing soil berm with sand berm and periodically removing bullets or shot from a berm. A column experiment corresponding to the first BMP was conducted by mixing the bullets with sand/soi...

Space weathering on airless planetary bodies: clues from the lunar mineral hapkeite.

Physical and chemical reactions occurring as a result of the high-velocity impacts of meteorites and micrometeorites and of cosmic rays and solar-wind particles are major causes of space weathering on airless planetary bodies, such as the Moon, Mercury, and asteroids. These weathering processes are responsible for the formation of their regolith and soil. We report here the natural occurrence o...