Sökning: "Nanofiltration"

Visar resultat 1 - 5 av 17 avhandlingar innehållade ordet Nanofiltration.

  1. 1. Nanofiltration at elevated temperatures: Influence of the combined effects of temperature, salts, pH and cleaning

    Författare :Mattias Nilsson; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elevated temperatures; Electroviscous friction; Energy; pH; Economics; Nanofiltration; Pre-treatment; Salt; Swelling; Membrane performance; Cleaning; Temperature;

    Sammanfattning : The influence of temperature, salts, pH, and various pre-treatments and cleaning on the nanofiltration (NF) performance of thin-film polyamide (PA) composite membranes has been investigated. The change in membrane performance was correlated to membrane swelling or/and electroviscous friction. LÄS MER

  3. 2. Safe drinking water in a changing environment : Membrane filtration in a Swedish context

    Författare :ANGELICA LIDÉN; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :Boreal lakes; Drinking water; Nanofiltration; Natural organic matter; Ultrafiltration;

    Sammanfattning : Surface water is vital for Swedish drinking water supply. In the past decades, a trend of increased total organic carbon (TOC) concentrations has led to higher consumption of coagulants in drinking water treatment, and has pushed the levels in the outgoing water closer to the allowed levels of TOC. LÄS MER

  4. 3. Transplantation of stem cell-derived islets as a treatment for type 1 diabetes

    Författare :Julia Thorngren; Joey Lau Börjesson; Per-Ola Carlsson; Lena Eliasson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Type 1 diabetes; Islet of Langerhans; Stem cell-derived islets; Islet transplantation; Humanized mouse model; Positron emission tomography; Nanofiltration; Fysiologi; Physiology; Medical Cell Biology; Medicinsk cellbiologi;

    Sammanfattning : Type 1 diabetes (T1D) is an autoimmune disease that leads to an immune attack on insulin-producing beta cells, necessitating lifelong insulin therapy. For individuals with brittle diabetes and poor metabolic control, the option of pancreatic human islet transplantation exists. LÄS MER

  5. 4. Pharmaceuticals – improved removal from municipal wastewater and their occurrence in the Baltic Sea

    Författare :Berndt Björlenius; Gen Larsson; Antonius J. A. van Maris; Hallvard Ødegaard; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Advanced wastewater treatment; WWTP; pilot plant; pharmaceutical residues; removal of pharmaceuticals; activated carbon; ozonation; nanofiltration; biomarker; Baltic Sea; Bioteknologi; Biotechnology;

    Sammanfattning : Pharmaceutical residues are found in the environment due to extensive use in human and veterinary medicine. The active pharmaceutical ingredients (APIs) have a potential impact in non-target organisms. Municipal wastewater treatment plants (WWTPs) are not designed to remove APIs. LÄS MER

  7. 5. Climate Change Adaption of Waterworks for Browning Surface Waters : Nano- and Ultrafiltration Membrane Applications for Drinking Water Treatment

    Författare :Alexander Keucken; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Natural organic matter NOM ; drinking water; ultrafiltration; nanofiltration; autopsy; modelling;

    Sammanfattning : Natural organic matter (NOM) is found in all surface, ground, and soil waters. During recent decades, reports worldwide show a continuing increase in the color and NOM of the surface water, which has an adverse effect on drinking water purification. For several practical and hygienic reasons, the presence of NOM is undesirable in drinking water. LÄS MER