Sökning: "aqueous film forming foams"

Hittade 5 uppsatser innehållade orden aqueous film forming foams.

  1. 1. Groundwater Movement and PFAS Transportation in the Vreta-Bålsta Esker

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Kevin Pettersson; [2020]
    Nyckelord :GMS; MODFLOW; MT3DMS; PFAS; modelling; GMS; MODFLOW; MT3DMS; PFAS; Modellering;

    Sammanfattning : Håbo municipality is looking for alternative drinking water sources for its residence city of Bålsta. One possible source is the Vreta-Bålsta esker located northeast of Bålsta, which could be used for artificial infiltration and extraction of groundwater. LÄS MER

  3. 2. Groundwater Flow and Transport Modelling of PFASs in Åkersberga

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Worada Boonraksasat; [2019]
    Nyckelord :Groundwater modelling; contaminant transport; Visual MODFLOW; MODPATH; MT3DMS; PFASs; AFFFs;

    Sammanfattning : Per- and polyfluoroalkyl substances (PFASs) are a group of man-made organic chemicals that have been commercially used since the 1950s in many consumer products, including impregnated textiles, impregnated paper, nonstick products (e.g., Teflon), cleaning agents, and in firefighting foams. LÄS MER

  4. 3. An assessment of thermal desorption as a remediation technique for per- and polyfluoroalkyl substances (PFASs) in contaminated soil

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Anna-Stina Lind; [2018]
    Nyckelord :Thermal desorption; per- and polyfluoroalkyl substances; PFASs; PFBA; PFPeA; PFHxA; PFHpA; PFOA; PFNA; PFDA; PFUnDA; PFBS; PFHxS; PFOS; 6:2 FTSA; 8:2 FTSA; FOSA; PCB; PAH; UPLC MS MS; Termisk rening; Per- och polyfluoralkylsubstanser; PFASs; PFBA; PFPeA; PFHxA; PFHpA; PFOA; PFNA; PFDA; PFUnDA; PFBS; PFHxS; PFOS; 6:2 FTSA; 8:2 FTSA; FOSA; PCB; PAH; UPLC MS MS;

    Sammanfattning : Per- and polyfluoroalkyl substances (PFASs) are a diverse group of persistent organic pollutants. PFASs have a wide area of applications such as stain repellent for paper, textile, furniture and industrial products such as aqueous film forming foams (AFFFs) used for firefighting. LÄS MER

  5. 4. PFAS in recipient sediment of a military airport

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

    Författare :Lovisa Johansson Blomér; [2017]
    Nyckelord :Per- and polyfluoroalkyl substances; PFAS; PFOS; Sediment; Military airport; Per- och polyfluorerade alkylsubstanser; PFAS; PFOS; sediment; militär flygplats;

    Sammanfattning : Per- and polyfluoroalkyl substances, PFASs, are highly fluorinated substances where the carbon chain is fully- or partly fluorinated. A functional group is coupled at the end of the carbon chain which gives PFASs their different properties. LÄS MER

  7. 5. Transport of per- and polyfluoroalkyl substances in soil and groundwater in Uppsala, Sweden

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

    Författare :Sofia Bergström; [2014]
    Nyckelord :PFASs; PFOS; perfluoroalkyl substances; groundwater; soil; surface water; river water; drinking water; aqueous film forming foams;

    Sammanfattning : In recent years, per- and polyfluoroalkyl substances (PFASs) have received increasing public attention due to their persistence, bioaccumulation potential and toxicity to humans and wildlife. PFASs are widely used in various products including surfactants in paper, textiles, and aqueous film forming foams (AFFFs). LÄS MER