Sökning: "GAC"

Visar resultat 6 - 10 av 37 uppsatser innehållade ordet GAC.

  1. 6. PFAS- En sammanfattning av ny forskning, med ett fokus på föroreningskällor, provtagning, analysmetoder och saneringsmetoder

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Sebastian Nilsson; [2022]
    Nyckelord :föroreningskällor; saneringsmetoder; analysmetoder; PFAS; provtagning; Earth and Environmental Sciences;

    Sammanfattning : PFAS (per- and polyfluoroalkyl substances) is a large group of pollutants that, over the last decade have been of great academic concern since it has been found all around the globe. PFAS is ubiquitous in our environment and frequently found in low background concentrations in soil and water; recent research has also found that PFAS occur in biotic samples, such as fish and plants. LÄS MER

  3. 7. Identification of mRNA expressions as biomarkers of environmental pollutants in the great pond snail (Lymnaea stagnalis)

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Johanna Eriksson; [2022]
    Nyckelord :;

    Sammanfattning : The great pond snail, Lymnaea stagnalis is considered a sensitive species to environmentalpollution and is used in ecotoxicology testing. The snail is naturally found in the environment inthe Holarctic realm in Europe, northern America and Asia but also in some parts of Australia. LÄS MER

  4. 8. PFAS in a Swedish wastewater treatment plant : An analysis of the effectiveness of major treatment steps on 33 PFAS

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Jonatan Forsberg; [2022]
    Nyckelord :Northern Sweden; PFAS; municipal WWTP; MBBR; GAC;

    Sammanfattning : Wastewater treatment plants (WWTP) are known spreaders of per- and polyfluoroalkyl substances (PFAS) into the environment. Luleå University of Technology is conducting a yearlong study in which PFAS concentrations in the different treatment steps are measured at Uddebo treatment plant. LÄS MER

  5. 9. GAC filter Design Criteria for Wastewater Treatment for Removal of Organic Micropollutants – A Literature Review

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Bhargav Reddy Elavarthi; [2021]
    Nyckelord :micropollutants; activated carbon filtration; empty bed contact time EBCT ; pharmaceuticals; breakthrough curves; adsorption; PFOS; carbon use; water and environmental engineering; Technology and Engineering;

    Sammanfattning : Granular Activated Carbon (GAC) is nowadays suggested as a fourth (quaternary) treatment step at municipal wastewater treatment plants to remove certain chemicals and particularly organic micropollutants (OMPs). This work investigated the different factors that affect the performance of the GAC filter for the removal of micropollutants in a municipal wastewater treatment plant. LÄS MER

  7. 10. Removal of pharmaceutical residues from wastewater by oxidation with ozone

    Master-uppsats, KTH/Resursåtervinning

    Författare :Frida Söderström; [2021]
    Nyckelord :ozonation; adsorption; pollutants; pharmaceuticals; wastewater; ozonering; adsorption; föroreningar; läkemedel; vattenrening;

    Sammanfattning : Avloppsreningsanläggningar är idag utformade för att rena bort föroreningar i form av organiskt material, suspenderade fasta ämnen och växtnäringsämnen (exempelvis fosfater och nitrater). Myndighet i Sverige har satt upp restriktioner och lagar gällande hur mycket av de olika föroreningarna som det är okej att utgående vatten innehåller. LÄS MER