Sökning: "organic contaminants"

Visar resultat 21 - 25 av 81 uppsatser innehållade orden organic contaminants.

  1. 21. The Effects of Depth and Hydrological Connectivity on Heavy Metal Loading in Riparian Zones

    Magister-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Emily Rose Williams; [2021]
    Nyckelord :Riparian zones; metal elements in soils; Discrete Riparian Inflow Zones DRIPs ; riparian soils; metal retention;

    Sammanfattning : The area between a stream and land is known as a riparian zone. These zones are highly dynamic whichcarry and accumulate heavy metals and environmental contaminants. Discrete Riparian Input Zones(DRIPs) are a subset of such zones that carry concentrated amounts of water into streams at discrete points. LÄS MER

  3. 22. Genomic sequencing of freshwater mussel unio tumidus using the minion

    Magister-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Firouzeh Mehni; [2021]
    Nyckelord :;

    Sammanfattning : Freshwater mussels are aquatic organisms that are involved in nutrient cycling and water purification. Freshwater mussels have filtering activity and transfer nutrients and energy-rich organic compounds from the water column to the sediments. LÄS MER

  4. 23. Carbon Filters for Drinking Water Treatment – How Flow Rate and Empty Bed Contact Time Influence the Performance

    Master-uppsats, KTH/Kemiteknik

    Författare :Wilma Bäckström Nilsson; [2021]
    Nyckelord :Carbon filter; GAC; BAC; Biofilm; Flow rate; NOM; EBCT; Kolfilter; GAC; PAC; biofilm; flödeshastighet; NOM; uppehållstid;

    Sammanfattning : Dricksvatten är en essentiell del av ett hållbart samhälle. Därför är det viktigt att säkerställa säkert dricksvatten genom fungerande vattenreningsverk. En viktig förorening att behandla är NOM, som i sig är ofarligt men som kan producera farliga föroreningar. En teknik som används för behandling av NOM är kolfiltrering. LÄS MER

  5. 24. Evaluating the potential of microplastics and natural organic matter for sorption of hydrophobic organic contaminants based on selected properties

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

    Författare :Sabrina Noël Reaume Zabalgoitia; [2021]
    Nyckelord :microplastics; natural organic matter; particulate organic matter; sorption; vector;

    Sammanfattning : Interest in microplastic behaviour as vectors for hydrophobic organic pollutants has increased in the literature over recent years, however these materials constitute only one of many organic particulate groups in the environment able to compete for pollutants. This review examines particle characteristics including size, surface area, porosity, and age, and how these may influence natural organic particle and microplastic sorption capacity. LÄS MER

  7. 25. Utility of bark chips for removal of fluorinatedorganic compounds in water samples at a hazardouswaste management facility

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Maria Ekesbo; [2021]
    Nyckelord :Pine bark; PFAS; extractable organofluorine; contaminated water and sorption efficiency.;

    Sammanfattning : Per- and polyfluoroalkyl substances (PFAS) are synthetic compounds that have beenaround since 1940. They can be used in a variety of products such as fire-fighting foam, food packaging and cosmetic products. Many PFAS have potential toxic effects on both humans and animals which poses a problem due to their wide distribution and persistency. LÄS MER