Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"environmental geochemistry"”.
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Statistical Analysis of the Environmental Geochemistry of an Unmined Uranium Ore Deposit
An evaluation of the geochemistry of the environment prior to large-scale changes enables scientists and other stakeholders to assess both baseline conditions and the potential impact of those changes to the environment. One area in which documentation of pre-development geochemistry is …
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Environmental geochemistry of soils and stream sediments from Anka and Birnin-Gwari artisanal gold mining areas, NW Nigeria
The geochemistry of surface soils and stream sediments from two areas in the north-western Nigeria Schist Belt was studied in order to assess the environmental impact of artisanal mining of quartz-gold-sulfide mineralization. XRF determination of total elemental concentration was carried out, along …
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Geobiology of marine magnetotactic bacteria
… their population dynamics and regulation by environmental geochemistry. The MTB community in Salt Pond (Falmouth, MA), a small stratified marine basin, was used as a model system for quantitative community studies. Magnetiteproducing MTB predominate slightly above the oxic-anoxic interface …
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Geobiology of marine magnetotactic bacteria
… their population dynamics and regulation by environmental geochemistry. The MTB community in Salt Pond (Falmouth, MA), a small stratified marine basin, was used as a model system for quantitative community studies. Magnetiteproducing MTB predominate slightly above the oxic-anoxic interface …
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Coal mine waters in South Africa: Their Geochemistry,quality and classification. Volume one and two
… it is used for drilling, dust suppression, environmental cooling, as an energy source in hydropower and as a transport medium for backfilling. In addition, potable water is required for drinking purposes. Large volumes of water are affected by chemical contaminants in the coal mines (Azzie, …
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The mobility of endosulfan and chlorpyrifos in the soils of the Hex River Valley
The Department of Community Health, University of Cape Town is assessing the quality of water supplies in the rural Western Cape, South Africa, with respect to agrochemical pollutants. This study focuses on the area of the Hex River Valley where pesticides have been detected in water samples. The …
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Оценка и снижение экологической опасности отвалов горного производства в Новороссийской промышленной агломерации
… Cu, Ba and Sr. Land zoning based on accumulated environmental damage indicators and the debris-flow technical risk was performed to assess environmental threats. The designed mine dump reclamation includes soil stabilisation by application of geosynthetic cover, hydro-seeding of soil improvers …
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Nanoparticle - Heavy Metal Associations in Riverbed Sediments
Relationships between trace metals and nanoparticles were investigated using analytical transmission electron microscopy (aTEM) and asymmetric flow field flow fractionation (aFlFFF) coupled to both multi-angle laser light scattering (MALLS) and high resolution-inductively coupled plasma mass …
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Contributions to predicting contaminant leaching from secondary materials used in roads
… transport, Bayesian statistics, and aqueous geochemistry of leaching.</p><p>Contributions on water movement and reactive transport in highways included probabilistic prediction of leaching in an embankment, and scenario analyses of leaching and transport in pavements using HYDRUS2D, a …
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Geochemical Conditions Affecting Uranium(VI) Fate And Transport In Soil And Groundwater In The Presence Of Phosphate
… with actinides like uranium is a serious environmental concern. Phosphate addition to uranium-contaminated soil and groundwater can potentially provide long-term in-situ U(VI) immobilization by precipitation of low solubility U(VI)-phosphates. Reactions at the iron: oxy)hydroxide-water …