Sökning: "contamination sources"

Visar resultat 1 - 5 av 131 uppsatser innehållade orden contamination sources.

  1. 1. If Trees Could Talk - Dendrochemistry, a Promising Method for Understanding Pollution History

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Jonatan Uusitalo; [2023-08-17]
    Nyckelord :;

    Sammanfattning : Heavy metal pollution presents a significant environmental challenge in the Anthropocene era, and understanding pollution history is crucial to address historical pollution and implementing effective mitigation measures. This study stands among a few comprehensive dendrochemical investigations that utilized an extensive dataset and energy dispersive X-ray fluorescence (EDXRF) technique to reconstruct the contamination history of As, Cd, Cu, Ni, Pb, and Zn, with a focus on Cu. LÄS MER

  3. 2. Modeling PFAS Transport in Groundwater - Exploring current approaches and evaluating parameter importance

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologi

    Författare :Clara Eklund; [2023]
    Nyckelord :PFAS; Groundwater modeling; FEFLOW; Python; Machine learning; Technology and Engineering;

    Sammanfattning : PFAS contamination in drinking water is a current problem, and new regulations for drinking water limits were recently implemented in each member country of the EU in January this year. Understanding the spread of PFAS in groundwater is therefore important to prevent it from reaching drinking water sources. LÄS MER

  4. 3. Membrane-less porous walls electrolyzer for electrochemical ammonia synthesis

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Francesco Gelain; [2023]
    Nyckelord :electrochemical ammonia synthesis EAS ; nitrate reduction; green ammonia; energy storage; hydrogen carrier.; elektrokemisk ammoniaksyntes; nitratreduktion; ammoniak; grön ammoniak; energilagring; vätgasbärare.;

    Sammanfattning : n a world of unsustainable growth and increasingly catastrophic climate events, the quest for sustainability is open. Electrochemical ammonia synthesis (EAS) represents an eco-friendly means for green ammonia production. LÄS MER

  5. 4. PFAS Contamination in Groundwater; Evaluating Factors Influencing the Impact of PFAS Contamination on the Drinking Water Source in a Holistic Approach _________________________

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Anna Söderman; [2023]
    Nyckelord :PFAS; Contamination; Firefighting Foam; Groundwater; Drinking Water; Technology and Engineering;

    Sammanfattning : Aqueuous Film Forming Foam (AFFF) containing Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) is one of the major sources of groundwater contamination in Sweden. Groundwater contamination caused by the use of AFFF in correlation to fire training events was investigated in Kallinge, Sweden. LÄS MER

  7. 5. Characterisation and Identification of Human Mesenchymal Stromal Cells and the Impact of Different Culturing Media

    Kandidat-uppsats, Uppsala universitet/Institutionen för medicinsk cellbiologi

    Författare :Sana Said Yahya; [2023]
    Nyckelord :Culturing media; Fetal bovine serum; Human serum; Cell proliferation; In-vitro differentiation;

    Sammanfattning : Background: Mesenchymal stromal cells (MSCs) are multipotent cells that can differentiate into various cell types and possess immunomodulatory and anti-inflammatory effects, making them interesting candidates for therapeutic applications. MSCs are present in small quantities in tissues like bone marrow and therefore need to be expanded while preserving their essential characteristics. LÄS MER