Sökning: "Barium"

Visar resultat 6 - 10 av 27 uppsatser innehållade ordet Barium.

  1. 6. Laptops and smartphones - a gold mine? : A material flow analysis of small electronics in a Swedish organisation with focus on metal resources

    Master-uppsats, Linköpings universitet/Tema Miljöförändring

    Författare :Daniella Karlsson; [2021]
    Nyckelord :Metals; bottom-up MFA; Recycling; Reuse; Urban mining; Stocks;

    Sammanfattning : The aim of this study is to contribute to today´s knowledge about stocks of electronic products on the organisational level. This is done by using a bottom-up MFA on laptops and smartphones in a chosen organisation, the data collected for this study is done by both semi-structured interviews and literature searches. LÄS MER

  3. 7. Chemical analysis of hazardous substances in permanent tattoo inks available on the market

    Kandidat-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Anna Bevin; An Na Lay; Daniel Ullmark; Jessika Hagman; [2020]
    Nyckelord :Tattoo inks; tattoos; metals; pigments; skin; matrix assisted laser desorption ionization time of flight mass spectrometry; inductively coupled plasma mass spectrometry; mass spectrometry; allergens; dyes;

    Sammanfattning : As permanent tattoos are becoming more popular and common, an increased number of allergic reactions to tattoos is reported. The purpose of this project was to analyze tattoo inks for hazardous substances, and whether they comply to current Swedish and European legislative requirements. LÄS MER

  4. 8. Investigation of the Metal Content in Cress Seedlings fed with increased Concentration of Lead & Iron Solutions

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

    Författare :Nikita Burton; [2020]
    Nyckelord :Cress; iron; lead; metals; acidified digestion; MP-AES; ICP-MS;

    Sammanfattning : Metals are essential nutrients for plant health, but not all metals are necessary and can sometimes be harmful towards plants depending on factors such as species, elemental composition in the soil and concentration of a metal. Iron (Fe), which is one of the most abundant metals in the earth’s crust is also one the most important nutrients for plant growth, as it is responsible for metabolism. LÄS MER

  5. 9. Kartläggning av metallförekomst med XRF Väsmanstranden, Ludvika : En fördjupad riskbedömning

    Magister-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Anna Qvarforth; [2020]
    Nyckelord :Miljöriskanalys; Väsmanstranden; Ludvika; XRF;

    Sammanfattning : Abstract Centrally located in Ludvika, between the central station and the south-eastern part of Lake Väsman, the area called "Väsmanstranden" is located. The closeness to both Väsman and all its nearby natural deposits and the railroad have created excellent conditions for many businesses to flourish on the site over the years. LÄS MER

  7. 10. Processutveckling för rening av gips från Sysavs avfallsanläggning

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Nursena Cicek; [2019]
    Nyckelord :kemiteknik; chemical engineering; Technology and Engineering;

    Sammanfattning : Sysav tar emot och förbränner brännbart avfall i ett avfallskraftvärmeverk. Vid förbränningen bildas rökgaser som bland annat innehåller svaveloxid. Rökgaserna behöver gå igenom en avsvavlingsprocess eftersom svaveloxid utgör en stor hälsofara på grund av sin toxicitet. Reningsprocessen för rökgaserna består av två skrubbar. LÄS MER