Sökning: "Contamination transport"

Visar resultat 1 - 5 av 76 uppsatser innehållade orden Contamination transport.

  1. 1. 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

  3. 2. Analyzing Key Flows and Processes of Waste Management for Environmental Improvement in Chennai, India : A Minor Field Study with a Life Cycle and Socio-Technical Systems Perspective

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

    Författare :Märta Selander; [2023]
    Nyckelord :Waste management; India; Incineration; Composting; Dump yard; Global warming potential; GWP; socio-technical systems; Avfallshantering; Indien; Förbränning; Kompostering; Soptipp; Global uppvärmningspotential; GWP; socio-tekniska system;

    Sammanfattning : Waste management (WM) is a prominent issue in the world’s most populated country, India. Lack of WM can have a negative impact on the environment through leachate contamination of water bodies and emissions of greenhouse gases. 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. Development of an Accelerated Test Method for Compressed Natural Gas Fuel System Robustness against Contamination

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Elias Aretorn; [2023]
    Nyckelord :CNG; Natural Gas; Heavy-Duty Vehicles; Fuel System; Contamination; Cleanliness; Accelerated Testing; Experimental Setup; Pressure Regulator;

    Sammanfattning : A key factor for driving the shift towards sustainable transportation systems is alternative fuels, where compressed natural gas (CNG) is a beneficial alternative to the conventional fossil fuels with respect to greenhouse gas emissions. A fuel system is needed for heavy-duty natural gas vehicles, in order to transport the highly pressurized gas from the fuel tanks to the internal combustion engine. LÄS MER