Sökning: "Sorbent"

Visar resultat 1 - 5 av 39 uppsatser innehållade ordet Sorbent.

  1. 1. Remediation of per- and polyfluoroalkyl substances (PFAS) in contaminated water by sorption to pine- and spruce bark

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

    Författare :Rebecka Ayranci Dahlberg; [2023]
    Nyckelord :Per- and polyfluoroalkyl substances; sorption; pine bark; spruce bark; ultra-short-chain PFAS; short-and long-chain PFAS; elemental analysis; field-test;

    Sammanfattning : PFAS are anthropogenic substances used in many different industrial operations and products because of their unique properties. Due to their negative impact on human health and environmental bioaccumulative characteristics different authorities have addressed the issue. In Sweden the limit is4 ng/L for four different PFAS in drinking water. LÄS MER

  3. 2. Desulphurisation of cement flue gases

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Ellen Sjöstrand; [2023]
    Nyckelord :Flue Gas Desulphurisation; FGD; gypsum; cement;

    Sammanfattning : Flue gas desulphurisation (FGD) is a crucial method to minimise the SO2 emissions from industrial processes. The FGD system utilise an alkaline sorbent to remove SO2 from the flue gases. Calcium in form of limestone is a commonly used sorbent where gypsum is produced asa by-product. LÄS MER

  4. 3. Do selected CF3-containing pharmaceuticals oxidize to trifluoroacetic acid (TFA)? – Analysis of ultra-short perfluoroalkyl acids (PFAAs) and their analytical challenges following oxidation

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

    Författare :Johanna Gillberg; [2022]
    Nyckelord :;

    Sammanfattning : Total oxidizable precursor assay (TOPA) has been used to understand the contribution of unknown precursors to the extractable organofluorine (EOF) compounds. The investigation of compounds containing a CF3 moiety especially connected to an aromatic ring is important because any compounds with such a moiety (pharmaceuticals) may oxidize to form trifluoroacetic acid (TFA). LÄS MER

  5. 4. REMOVAL OF PFAS FROM WASTEWATER THROUGH ADSORPTION AND SORBENT INCINERATION

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

    Författare :Aston Sandblad; [2022]
    Nyckelord :PFAS; Adsorption; Incineration;

    Sammanfattning : Per- and polyfluoroalkyl substances, PFAS, are a manufactured group of chemicals that have been found to be toxic to humans and the environment. Exposure to PFAS may include birth defects for infants as well as an increased risk of cancer. LÄS MER

  7. 5. 3D Printing of Magnesium- and Manganese-Based Metal-Organic Frameworks for Gas Separation Applications

    L3-uppsats, Uppsala universitet/Nanoteknologi och funktionella material

    Författare :Dhruva Deole; [2022]
    Nyckelord :3D Printing; Additive Manufacturing; Metal-Organic Frameworks; Carbon Capture; Gas Separation;

    Sammanfattning : Metal Organic Frameworks (MOFs) are a class of porous materials that are predominantly obtained as powders and have been investigated as a solid sorbent for gas separation or carbon capture applications from combustion exhaust gases. The manufacturing of products with MOFs to use them for real life applications is still a major problem. LÄS MER