Search for dissertations about: "NOB"

Found 5 swedish dissertations containing the word NOB.

  2. 1. Biofilms in Nitrogen Removal - Bacterial Population Dynamics and Spatial Distribution

    Author : Robert Almstrand; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; AOB; NOB; biofilms; image analysis; FISH; Nitrosomonas; population dynamics; spatial distribution;

    Abstract : Efficient nitrogen removal at wastewater treatment plants (WWTPs) is necessary to avoid eutrophication of recipient waters. The most commonly used approach consists of aerobic nitrification and subsequent anaerobic denitrification resulting in the release of dinitrogen gas into the atmosphere. READ MORE

  4. 2. Controlling and monitoring of deammonification process in moving bed biofilm reactor

    Author : Jingjing Yang; Elzbieta Plaza; Britt-Marie Wilén; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : It is considered that partial nitrification combined with anammox, named deammonification, is more environmental friendly compared with conventional nitrification/denitrification due to decrease energy requirement, low emission of CO2 and N2O. Dissolved oxygen (DO) is a significant parameter influencing the nitrogen removal rate and activity of different microorganisms. READ MORE

  5. 3. Anammox-based systems for nitrogen removal from mainstream municipal wastewater

    Author : Andriy Malovanyy; Elzbieta Plaza; Adriano Joss; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wastewater; Nitrogen removal; Ion exchange; Deammonification; Anammox; Mainstream; Mark- och vattenteknik; Land and Water Resources Engineering;

    Abstract : Nitrogen removal from municipal wastewater with the application of deammonification process offers an operational cost reduction, especially if it is combined with a maximal use of organic content of wastewater for biogas production. In this thesis, two approaches for integration of the deammonification process into the municipal wastewater treatment scheme were studied. READ MORE

  6. 4. High Power Radio Frequency Solid-State Amplifiers and Combiners for Particle Accelerators : From module to system design approach

    Author : Long Hoang; Dragos Dancila; Paul Tasker; Uppsala universitet; []
    Keywords : solid state technology; power amplifier; superconducting cavities; optimal charging; high efficiency; particle accelerators; Engineering Science with specialization in Microwave Technology; Teknisk fysik med inriktning mot mikrovågsteknik;

    Abstract : The rise of Big Science projects brings issues related to the energy consumption and the associated environmental impacts of such large-scale facilities. Therefore, environmentally-sustainable developments are undertaken towards the adoption of energy savings and improved energy-efficient approaches. READ MORE

  7. 5. Studies of hepatitis C virus envelope proteins : interaction with host cells and as targets for the humoral response

    Author : Aster Beyene; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Hepatitis C virus; Envelope protein 1 and 2 E1 and E2 ; humoral response; VSV pseudotype.;

    Abstract : Hepatitis C virus (HCV) is a major cause of chronic hepatitis infection worldwide. It leads to chronic infection in over 80% in infected patients and may result in liver cirrhosis, hepatocellular carcinoma and autoimmune disorders. READ MORE