Sökning: "dust pollution"

Visar resultat 1 - 5 av 29 uppsatser innehållade orden dust pollution.

  1. 1. Air quality prediction in metropolitan areas using deep learning methods

    Master-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

    Författare :Augustin Ionut Ionascu; [2023]
    Nyckelord :air quality; forecasting; time-series; univariate; multivariate; multi-step; Attention; Transformer;

    Sammanfattning : The rapid growth of the world's urban population shows that people are increasingly moving to cities. In recent decades, the frequent occurrence of smog caused by increasing industrialization has brought environmental pollution to record highs. LÄS MER

  3. 2. Förbättrad svavelavskiljning i våt gasrening vid Högdalenverket

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Marion Salem; [2023]
    Nyckelord :Sulphur oxides; Combined heat; and power plant; flue gas desulfurization; wet desulfurization; Svaveloxider; rökgasavsvavling; våta gasreningssystem;

    Sammanfattning : Vid Högdalens kraftvärmeverk produceras fjärrvärme och el, genom förbränning av hushålls och industriavfall. De negativa hälso- och miljökonsekvenserna som rökgasens föroreningar bidragit till, har lett till större intresse om teknikutveckling för rening av rökgasen ifrån miljögifter innan utsläpp till luft. LÄS MER

  4. 3. Evaluation of two-stage GAC filtration for PFAS reduction in drinking water

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Julia Söderberg; [2023]
    Nyckelord :Per- and polyfluoroalkyl substances PFAS ; Granular activated carbon GAC ; drinking water; removal efficiency; DWTP;

    Sammanfattning : PFAS, or per- and polyfluoroalkyl substances, are a group of chemicals found in a wide range of industrial and consumer products. Due to their persistent nature and widespread use, concerns have been raised about their impact on human health and the environment. LÄS MER

  5. 4. Effects of plastic pollution on leaf litter decomposition in Swedish freshwater ecosystems : a field study addressing recently and globally emerging pollutants

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Martina Stangl; [2022]
    Nyckelord :Microplastics; Face masks; Ecosystem functioning; Leaf decomposition; Field study;

    Sammanfattning : Plastic pollution is recognized as an increasing environmental problem, but few studies have addressed impacts on ecosystem functions, and very few have been conducted in the field. This study investigated the effects of polypropylene particles derived from disposable face masks on in-situ leaf litter decomposition processes in freshwater ecosystems. LÄS MER

  7. 5. Automated Control System for Dust Concentration Measurements Using European Standard Reference Method

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Gustav Marstorp; [2021]
    Nyckelord :Dust concentration measurements; Particle concentration; Isokinetic deviation; PID-controller; EU standard 13284-1:2017; Stoftmätning; Partikelkoncentration; PID-regulator; Isokinetisk avvikelse; EU standard 13284-1:2017;

    Sammanfattning : Most companies that have any type of combustion or other pollution process via emission to air needs to measure their emissions to ensure they are within legal boundaries. Among the different types of pollution measurements, one of the most common is dust concentration, also known as particle concentration. LÄS MER