Sökning: "membrane fouling."

Visar resultat 1 - 5 av 17 uppsatser innehållade orden membrane fouling..

  1. 1. Recovery of Dialcohol Cellulose using Micro- and Ultrafiltration Processes

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Lina Näslund; Gabriella Petersson; [2023]
    Nyckelord :Membrane filtration; Ultrafiltration; Microfiltration; Dialcohol cellulose; DAC; Bioplastics; Chemical engineering; Process design; Technology and Engineering;

    Sammanfattning : The waste management and production of plastic play a concerning part in global warming and continues to have a negative effect on the environment. A promising strategy to address this challenge is to develop new sustainable materials, to replace current fossil-based plastics. LÄS MER

  3. 2. Ultrasonication of Spiral Wound Membranes to Mitigate Fouling in Reverse Osmosis

    Master-uppsats, KTH/Kemiteknik

    Författare :Eliot Diklev; [2022]
    Nyckelord :Reverse Osmosis; Spiral Wound Membrane; Ultrasonication; Fouling; Omvänd Osmos; Spirallindat Membran; Ultraljudsbehandling; Igenslamning;

    Sammanfattning : Syftet med den här studien var att undersöka en alternativ slamningsreducerande teknik till spolning, som effektivt kan ta bort biologisk påväxt. Ultraljud undersöktes som en möjlig metod för att ta bort igenslamningen från omvänd osmos med ett spirallindat membran. LÄS MER

  4. 3. Energieffektivisering av membranluftrengöring vid högflödesperioder : Studie på en storskalig MBR-pilot på Syvab Himmerfjärdsverket i samarbete med SUEZ Water Technologies and Solutions

    Master-uppsats, Karlstads universitet

    Författare :Patrik Bou-Rached; [2022]
    Nyckelord :MBR; membrane air scouring; trans membrane pressure; luftflöde; membranluftrengöring; transmembrantryck;

    Sammanfattning : Membrane BioReactor (MBR) is a wastewater treatment method which combine both biological and physical cleaning. In the membrane tank there is membrane fibres which physically separate wastewater from containing organic material. This causes the membrane fibres to easily build fouling. LÄS MER

  5. 4. Modeling transport phenomena with COMSOL Multiphysics - Adsorptive membrane fouling in lignocellulosic biorefineries and lessons learned from it

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Linnéa Petersson; [2020]
    Nyckelord :QCM-D; Quartz crystal microbalance with dissipation monitoring; Hemicellulose; GGM; Galactoglucomannans; Adsorption; Membrane fouling; COMSOL; Chemical engineering; Kemiteknik; Technology and Engineering;

    Sammanfattning : The separation of hemicelluloses, like glactoglucomannans, from lignocellulosic process streams is an important step in building profitable lignocellulosic biorefineries. The most common method for the separation is membrane filtration, however, it has the draw-back of being sensitive to membrane fouling. LÄS MER

  7. 5. Intensification of lignocellulosic bioethanol production process using multi-staged membrane bioreactors

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Clarisse Uwinez; [2019]
    Nyckelord :Interconnected continuous hydrolysis and fermentation; lignocellulosic bioethanol; Membrane bioreactors; process intensification; lignin recovery; membrane fouling.;

    Sammanfattning : The exploitation of lignocellulosic materials with the aim of producing high value-added products will potentially counteract concerns related to the depletion of fossil resources or exponential population growth. Bioethanol produced from lignocellulosic agriculture residue exhibits promising alternative to the petroleum-based fossil fuel which reduces net emission of greenhouse gases (GHG). LÄS MER