Sökning: "Metal and Metalloid"

Hittade 5 uppsatser innehållade orden Metal and Metalloid.

  1. 1. Investigating the potential correlations between metal and metalloid concentrations and soil color : A Minor Field Study on the island province of Marinduque, Philippines

    Kandidat-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Ivana Pia Saric Söderholm; Erik Readwin; [2023]
    Nyckelord :Marinduque; Metal and Metalloid; Nix Pro 2 Color Sensor; Philippines; Soil color; X-Ray Fluorescence XRF ; Filippinerna; Jordfärg; Marinduque; Metall och Metalloid; Nix Pro 2 Color Sensor; Röntgenfluorescens XRF ;

    Sammanfattning : This study was carried out as a bachelor's thesis at KTH Royal Institute of Technology during the spring of 2023, investigating the correlation between the color with the concentration of various metal and metalloids (MMs) in the soil of Marinduque, The Philippines. With a history of mineral exploitation, notably copper and gold, the island has faced persistent environmental challenges, exemplified by the catastrophic waste spills in 1993 and 1996 that contaminated the Boac and Mogpog Rivers. LÄS MER

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

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Angeliki Filippou; [2019]
    Nyckelord :;

    Sammanfattning : 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. LÄS MER

  4. 3. Establishing a sustainable water supply in Chonyonyo, Karagwe, Tanzania

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Kristin Holmberg; [2017]
    Nyckelord :activated carbon filter; EPANET; microbiological barrier; MPN; pipe design criteria; storage effects; sustainable water supply; ultrafiltration; UV-light; water treatment; EPANET; hållbar vattenförsörjning; kolfilter; lagringseffekter; mikrobiologisk barriär; MPN; pipe design criteria; ultrafiltrering; UV-beredning; UV-ljus; vattenrening;

    Sammanfattning : The small village Chonyonyo, in the district Karagwe in the northwest of Tanzania has a shortage of safe drinking water. Women and children spend several hours a day fetching water and gathering firewood to boil the water to make it more suitable for drinking. LÄS MER

  5. 4. Metal and metalloid sequestration in a constructed wetland system for treatment of landfill leachate during 2003-2012

    Magister-uppsats, Sektionen för ekonomi och teknik (SET)

    Författare :Tatsiana Bandaruk; [2013]
    Nyckelord :;

    Sammanfattning : Landfill leachate treatment can be expensive and energy consuming when carried out in wastewater treatment plants. However, there can be several possible solutions for reducing cost and energy requirements and one of them is on-site biological treatment of polluted landfill leachate in constructed wetland systems. LÄS MER

  7. 5. Simulation of Selenium Remobolisation and cycling in sediment

    Master-uppsats, KTH/Industriell ekologi

    Författare :Erik Palm; [1997]
    Nyckelord :Modelling; selenium; biogeochemistry; bioturbation; sediment; pollutant fate; Lake Macquarie;

    Sammanfattning : Lake Macquarie is the largest estuarine lake in New South Wales and is located on the eastern seaboard of Australia, approximately 85 km north of Sydney.The study of heavy metal concentrations in surficial sediments, sediment cores, seagrasses and fish conducted by the New South Wales Department of Mines in 1974 revealed that significant heavy metal contamination of Lake Macquarie has occurred. LÄS MER