Essays about: "Arsenic"

Showing result 1 - 5 of 82 essays containing the word Arsenic.

  1. 1. Distribution and mobilization of heavy metals at an acid mine drainage-affected region, South China

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Chen Luo; [2020]
    Keywords : acid mine drainage; arsenic; cadmium; geochemical modeling; heavy metals; lead; principal component analysis;

    Abstract : Dabaoshan Mine Site (DMS) is the biggest polymetallic mine in South China. The Hengshi River receives acid mine drain (AMD) waste leaching from the tailings pond and run-off from the treatment plant which flows into the Wengjiang River, Beijiang River, before discharging into the Pearl River. READ MORE

  3. 2. Chemical Stabilization of Arsenic in Contaminated Soil under Low Redox Conditions

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Eva Smedborn Pausson; [2019]
    Keywords : ;

    Abstract : Remediation techniques for arsenic contaminated soil have previously focused mostly on the surface soil layers where aerobic conditions are prevalent. In this master thesis, chemical stabilization by adding zero-valent iron (Fe(0)) and calcium oxide (CaO) to an arsenic-contaminated soil under low redox conditions have been studied through up-flow percolation tests. READ MORE

  4. 3. Arsenic and other heavy metals in hydropower plants : An assessment of occupational risk hazards at Fortum’s underground hydropower plants in Sweden

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Angeliki Filippou; [2019]
    Keywords : ;

    Abstract : Arsenic (As) is a metalloid that occurs naturally in the Earth’s crust, in bedrock and soil. The concentrations that Arsenic can be found are normally between 1-3 ppm. READ MORE

  5. 4. Passivation of Gallium Arsenide Nanowires for Solar Cells

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Austin Irish; [2019]
    Keywords : nanowires; semiconductors; solar cells; photovoltaics; passivation; electronics; chemistry; polymers; hydrazine; plasma; gallium; arsenic; iii-v; epitaxy; photoluminescence; time-resolved; spectroscopy; Physics and Astronomy;

    Abstract : A strategic and diverse set of passivation methods for gallium arsenide nanowires wasstudied. Using a time-resolved photoluminescence setup at100 Kand300 K, the radiativerecombination of charge carriers was resolved on a picosecond time scale. READ MORE

  6. 5. Leaching of Glass Waste – Structure and Humidity Cell Tests

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Elin Sandgren; [2019]
    Keywords : Glass structure; glass leaching; glass modifiers; humidity cell test; saturation index; arsenic; lead.; Glasstruktur; lakning av glas; glasmodifierare; fuktkammarförsök; mättnadsindex; arsenik; bly.;

    Abstract : Glass production has historically occurred at around 50 glassworks in Sweden, in a region known as the Kingdom of Crystals (Glasriket). Today, most of these sites are no longer active and left behind is glass waste of different forms (both as fragments of finished glass as well as unrefined glass melts). READ MORE