Essays about: "surface water pollution"

Showing result 6 - 10 of 84 essays containing the words surface water pollution.

  1. 6. Model Predictive Urea Dosing Control Strategy for Heavy-Duty Diesel Vehicles

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Mathias Schmekel; [2023]
    Keywords : Model predictive control; Selective catalytic reduction; Nitrogen oxides; Modell-prediktiv reglering; Selektiv katalytisk reduktion; Kväveoxider;

    Abstract : Stricter requirements on the reduction of Nitrogen Oxides (NOx) in the emissions of heavy-duty diesel vehicles drives development for more efficient aftertreatment systems. An ammonia covered catalyst is one of the most successful technologies in reducing NOx by converting it into the harmless byproducts water and nitrogen. READ MORE

  3. 7. Trädens växtplats i staden : jämförelse mellan två växtbäddsystem med fokus på konstruktion och tillväxt

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Johanna Pantulin Nordlund; [2023]
    Keywords : stadsträd; klimatanpassning; markförhållanden; strukturell jord; skelettjord; Stockholm; strukturella system; plastceller; växtceller; Milford;

    Abstract : Extrema väderförhållanden blir allt vanligare på grund av klimatförändringarna vilket leder till ökade risker för värmeböljor, skyfall och torka. Samtidigt växer världens städer och fler människor flyttar in till mer urbana miljöer. För att klara ett förändrat klimat behöver städerna anpassas. READ MORE

  4. 8. Mouthfeel Assessment of Tetra Pak Paper Straws: Exploring the Correlation between Instrumental Measurements and Sensory Evaluation

    University essay from Lunds universitet/Förpackningslogistik

    Author : Natchaya Hanprerakriengkrai; [2023]
    Keywords : mouthfeel; paper straws; correlations; instrumental measurement; sensory evaluation; Technology and Engineering;

    Abstract : The implementation of the Single-Use Plastics Directive has gained significant attention due to the detrimental impacts of plastic pollution, leading to the transition from plastic straws to paper straws for Tetra Pak’s portion-size carton packages. However, the acceptance of paper straws could be hindered by negative mouthfeel perceptions, which customers find the difficulties to accurately describe them. READ MORE

  5. 9. A Toxic Legacy? : A Study of PFAS Leakage from Landfills in the Eastern Part of Mälaren

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Elsa Hård af Segerstad; [2023]
    Keywords : Landfills; PFAS; Leachate; Mälaren-Görväln; Östra Mälaren Water Protection Area; Norrvatten; Drinking Water; Characterisation; Risk Assessment; Deponier; PFAS; Lakvatten; Mälaren-Görväln; Östra Mälarens vattenskyddsområde; Norrvatten; Dricksvatten; Karakterisering; Riskbedömning;

    Abstract : The growing concern around per- and polyfluoroalkyl substances (PFAS) and their negative health and environmental effects have lately become more apparent which also is reflected in the new, more strict regulations of permitted levels of PFAS in drinking water extracted from water resources. However, many point sources of PFAS pollution to the environment and to water resources are still not identified and assessed for risk. READ MORE

  6. 10. SINGLE AND COMBINED EXPOSURE OF POLYSTYRENE NANOPARTICLES AND NORTH SEA MARINE OIL IN TWO IN VITRO FISH MODELS

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Monica Olsson; [2022-10-05]
    Keywords : Polystyrene nanoparticles; crude oil; combined toxicity; cytotoxicity; oxidative stress;

    Abstract : The awareness of micro-and nanoplastic pollution and its impact on the marine ecosystem has increased over the last decade. Nanoplastics may affect aquatic organisms since their small size and high surface-to-volume ratio increases their bioavailability and ability to cross biological membranes. READ MORE