Sökning: "aluminum toxicity"

Hittade 5 uppsatser innehållade orden aluminum toxicity.

  1. 1. Environmental Impact of a Portable Photo Flash - Using Life Cycle Assessment Methodology

    Master-uppsats, KTH/Kemiteknik

    Författare :Tim Storfeldt Moqvist; [2020]
    Nyckelord :LCA; Sustainability; Chemistry; Photoflash; Photography; Hållbarhet; Livscykelanalys; Kemi; Foto; Fotoblixt; Lampa;

    Sammanfattning : This study was about performing an LCA on a portable flash unit, C1, made by Profoto. The goal was to get an overview of the environmental impact of the C1 and to investigate hotspots in the production and/or use phase of the C1. LÄS MER

  3. 2. Differences in aluminum tolerance of populus genotypes : development of methodology for identification of poplar genotypes suitable for acidic forest land

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Mikas Arlauskas; [2020]
    Nyckelord :populus; poplar; poplar hybrids; aluminum; aluminum tolerance; aluminum sensitivity; aluminum susceptibility; aluminum toxicity;

    Sammanfattning : Forest lands hold great potential for Populus plantations for bionenergy purposes. However in native boreal forests where land for establishing these plantations is abundant poplars encounter challenges in establishment. LÄS MER

  4. 3. Analysis and characterization of environmental friendly trivalent chromium passivation of aluminum alloys

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Emma Västerlund; Ronja Flink; [2016]
    Nyckelord :aluminium alloys; trivalent chromium passivation; SurTec 650V; goniometry; XPS; AES; SEM; TEM; corrosion;

    Sammanfattning : As of 21st September 2017, industrial use of hexavalent chromium (Cr(VI)) will, due to its environmental toxicity and carcinogenicity, be restricted by REACH regulations. Saab Aeronautics is therefore shifting anticorrosion surface treatment of aluminum alloys from hexavalent chromium conversion to trivalent chromium (Cr(III)) passivation. LÄS MER

  5. 4. Carboxylated Cellulose Nanocrystals Extraction from Kraft Pulp Using Ammonium Persulfate as Low Cost Source & Sustainable Method for High Quality Flexible Packaging Bio-coating

    Master-uppsats, Lunds universitet/Förpackningslogistik

    Författare :Gerald Perry Estavillo Marin; [2015]
    Nyckelord :affordable CNC extraction; high quality CNC; sustainable packaging; FT-IR; TEM; XRD; contact angle; transparency; haze; optical properties; food packaging; bio-packaging; bio-coating; plastics; PET film; polyethylene terephthalate; Kraft CNC; Kraft pulp; cotton CNC; oxygen barrier; nanocellulose crystals; ammonium persulfate; CNCs; cellulose nanocrystals; Chemistry;

    Sammanfattning : One of the leading challenges presented in 21st century for packaging industry is to address the growing environmental problems related to non-renewable flexible packaging. This leads to new growing interest in bio-based materials, among them cellulose nanocrystals (CNCs), which have already shown good performance in improving anti-fog and oxygen & water vapor barrier properties when applied to flexible film. LÄS MER

  7. 5. Usage of Ash from Coal incineration in Wuhai, China

    Master-uppsats, KTH/Industriell ekologi

    Författare :Shiyu Sun; [2007]
    Nyckelord :;

    Sammanfattning : This master thesis has been carried out at Industrial Ecology at Royal Institute ofTechnology, KTH, in cooperation with Swedish Environmental Research Institute, IVL.This thesis discussed the usage of the ash from coal incineration in Wuhai, Inner Mongolia,China by studying and analyzing the fly ash from the case plant, the North Power Company. LÄS MER