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Showing result 1 - 5 of 38 essays matching the above criteria.

  1. 1. Freight Transport in the Car-Free City : Towards a more sustainable urban freight sector

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Melisa Marta; [2023]
    Keywords : Car-free city; sustainable urban freight transport; urban consolidation center; cargo bicycles;

    Abstract : Freight transport of goods is an indispensable part of everyday life. Without it there would be no delivery of products such as food, water, construction material, technology, furniture, clothes and society, as we know it today, would collapse.  However, there are more and less sustainable ways of transporting goods. READ MORE

  3. 2. Biogas Potential in the North of Sweden : Inventory and Techno-Economic Assessment of Substrates for an Increased Biogas Production in Norrbotten

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Alma Fahlén Hammar; [2023]
    Keywords : Biogas; anaerobic digestion; AD; Norrland; bioenergy; fossil-free; chemical engineering; Chemistry; Technology and Engineering;

    Abstract : Great investments are planned in the north of Sweden the coming years, not the least in the county of Norrbotten where the projects collectively are referred to as the green transition due to the focus on fossil-free techniques. But to be able to secure a sustainable energy supply and reach the goal set by the member states of the European Union of a carbon dioxide neutral union in 2050 the production of alternative energy sources needs to intensify. READ MORE

  4. 3. Does in vivo exposure to perfluorooctanesulfonicacid induce an altered colonic barrier function inmice?

    University essay from Örebro universitet/Institutionen för medicinska vetenskaper

    Author : Hanna-Dalia Laar; [2022]
    Keywords : PFOA; PFAS; Ulcerative colitis; colon barrier; gastrointestinal permeability; Ussing Chamber;

    Abstract : Background: Several environmental risk factors have been implicated in the pathogenesis ofinflammatory bowel disease (IBD) and might cause an altered barrier function, a hallmark ofIBD. Recent evidence suggests that patients with late-onset ulcerative colitis (UC) have anincreased serum level of perfluoroalkyl substances (PFAS), one of the major chemical groupscontaminating our diet. READ MORE

  5. 4. Increasing water access throughhuman-centered design : Design of a off-grid water purifying devicein a resource constraint environment

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Author : David Sundvall; [2022]
    Keywords : human centered design; frugal innovation; Innovation; resource constrained environment; Bottom of the pyramid; BOP; Jugaad; resource constrained environment design; Mänskligt centrerad design; Sparsam innovation; Innovation; Resursbegränsad miljö; Botten av den socioekonomiska pyramiden; BOP; Jugaad; Resursbegränsad miljö design;

    Abstract : Patrick and Felicia are a couple who run a farm. Every day they harvest their crops and sell them at the local market. This is the family's everyday life and today's income goes to all the family'sexpenses such as food, water, and transport to the market. At the end of the day, the family's totalbudget results in plus or minus zero. READ MORE

  6. 5. Modelling of Fluid Flow and Contaminant Transport in Fractured Rock : Case Study

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Ebba Pegestam; [2022]
    Keywords : Contaminant transport; Discrete Fracture Network; Geology; Geohydrology; Groundwater transport; Fracture; Drinking water; Contamination; Föroreningar; flödestransport; spricknätverk; geologi; geohydrologi; grundvattentransport; sprickor; dricksvatten;

    Abstract : Drinking water contamination is a big concern in Sweden and is commonly traced back to being waste from former manufacturing industrial sites. Pollutants in the topsoil can be remediated by several techniques, such as decontamination or excavation but the toxins already enclosed in the bedrock cannot be treated the same and is harder to track possible contaminant pathways. READ MORE