Essays about: "IFAS"

Showing result 6 - 10 of 11 essays containing the word IFAS.

  1. 6. Evaluation of Partial Nitritation/Anammox processes operated in IFAS mode

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Aleksandra Zdyrska; [2017]
    Keywords : ;

    Abstract : The main aim of the study was to optimize Partial Nitritation/Anammox process operated in pilot-scale integrated fixed film activated sludge (IFAS) mode supplied with low-temperature mainstream wastewater and efficiency evaluation based on laboratory analysis and data from online sensors. Main tasks of research work were to stabilize the ongoing process and find the optimal conditions for maximizing effects of nitrogen removal. READ MORE

  3. 7. Deammonification efficiency in combined UASB and IFAS system for mainstream WWT

    University essay from KTH/Mark- och vattenteknik

    Author : Noureddine Khayi; [2017]
    Keywords : Ammonium; Nitrite; Nitrate; Deammonification; UASB; MBBR; DO; Aeration; monitoring; on-line control;

    Abstract : The study is about Nitrogen removal from the low concentrated mainstream wastewater after Upflow Anaerobic Sludge Blanket reactor process (UASB) by single-stage Partial Nitritation/Anammox process in a pilot scale reactor at Hammarby Sjöstad in Stockholm. A mixture of various concentrations of dissolved oxygen and different aeration methods have been tested in the pilot scale reactor in five months divided into five periods where the temperature was set at 15° C throughout the study. READ MORE

  4. 8. Strategies of improvement ofUASB reactor operation

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Daria Klesyk; [2017]
    Keywords : ;

    Abstract : The Upflow Anaerobic Sludge Blanket (UASB) reactor is one from the most widely used anaerobic technology to remove organic matter from wastewater, popular mostly in countries with warm climate but use all over the world. UASB reactor have mainly advantages: during organic matter removal biogas is produced, low energy consumption and simplicity of work. READ MORE

  5. 9. Monitoring and controlling of deammonification process in pilot-scale IFAS system.

    University essay from KTH/Mark- och vattenteknik

    Author : Ewa Ograbek; [2015]
    Keywords : ;

    Abstract : In recent years, Anammox process has been investigated extensively. Today is successfully used for treatment of supernatant from dewatering of digested sludge having a high concentration of ammonia nitrogen. READ MORE

  6. 10. Evaluation of Nitration/Anammox process by bacterial activity tests.

    University essay from KTH/Mark- och vattenteknik

    Author : Anna Mika; [2015]
    Keywords : Partial Nitritation Anammox process; Integrated fixed-film acti-vated sludge IFAS reactor; Batch tests; Specific Anammox Activity SAA ; Nitrate Uptake Rate NUR ; Oxygen Uptake Rate OUR ; Ammonium Oxi-dizing Bacteria AOB ; Nitrite Oxidizing Bacteria NOB ; Heterotrophic bac-teria;

    Abstract : Partial Nitritation/Anammox process (deammonification process), by which occurs oxidation of ammonium to nitrogen gas by autotrophic bacteria in anaerobic conditions, considered to be cost-effective and environmentally friendly method of nitrogen removal. Present research work focuses on achieving a high nitrogen removal degree, thanks to Anammox bacteria, while providing the best performance of the ongoing process. READ MORE