Essays about: "aktivt slam"

Showing result 1 - 5 of 9 essays containing the words aktivt slam.

  1. 1. The Potential of Dissolved Air Flotation for PFAS Reduction in Norrvatten's Future Waterworks

    University essay from KTH/Kemiteknik

    Author : Madeleine Vikström; [2023]
    Keywords : PFAS4; drinking water production; dissolved air flotation; granular activated carbon filter; sludge management; PFAS4; dricksvattenproduktion; flotation; granulärt aktivt kolfilter; slamhantering;

    Abstract : Norrvatten är en av Sveriges största dricksvattenproducenter. Med ett ökande behov av en större produktionskapacitet och nya regleringar, planerar dem att förbättra sin reningsprocess. En aspekt som kräver omfattande undersökning är val av reningsmetod för att nå den nya gränsen från Livsmedelsverket för fyra PFAS kemikalier. READ MORE

  3. 2. Experimental Study of Flow Fields in Moving Bed Biofilm Reactors

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Shea Nee Chew; [2023]
    Keywords : Moving bed biofilm reactors; Biofilm carriers; Mechanical mixing; Mixer configurations; Carrier mixing; Biofilmsreaktorer med rörlig bädd; Biofilmsbärare; Mekanisk blandning; Blandarkonfigurationer; Bärarblandning;

    Abstract : With the rise in global energy prices, as well as energy consumption being the largest source of greenhouse gas emissions, biofilm-based systems utilized for wastewater treatment, such as moving bed biofilm reactors (MBBRs), have grown in popularity for their lower energy consumption compared to conventional activated sludge processes. However, this technology requires large amounts of energy to constantly distribute and suspend its biofilm carrier within the reactor by either aerators or mechanical mixers. READ MORE

  4. 3. Thermochemistry modelling applied to activated sludge process: Feasibility assessment

    University essay from KTH/Proteinvetenskap

    Author : Maylis Fournier; [2022]
    Keywords : activated sludge; modelling; thermodynamics; microbial growth; aktivt slam; modellering; termodynamik; mikrobiell tillväxt;

    Abstract : Aktivt slam är en biologisk process som används i stor utsträckning för rening av avloppsvatten, där bakterier som odlas under luftiga förhållanden avlägsnar organiska ämnen och näringsämnen från förorenat vatten. För industriell verksamhet modelleras denna process för att representera och förutsäga biologiska fenomen. READ MORE

  5. 4. Microscopic Investigation of Filamentous Microorganisms in Activated Sludge Process for Sewage Treatment

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Lilian Lawson; [2018]
    Keywords : Floating sludge; foaming; wastewater; bulking; filamentous microorganisms; fungi; yeast-like; bacteria;

    Abstract : Hammarby Sjöstadsverk is a pilot plant operated by IVL Swedish Environmental Research Institute and Royal Institute of Technology (KTH) which treats municipal wastewater. Different processes are used of which one is a Sequential Batch Reactor (SBR) with activated sludge process. READ MORE

  6. 5. Inhibition of Nitrification in Industrial Wastewater - Identification of Sources

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Vidar Aspelin; Jennifer Ekholm; [2017]
    Keywords : nitrite; nitrate; industrial wastewater; inhibition of nitrification; additivity; nitrifikationshämning; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Technology and Engineering;

    Abstract : The discharge of industrial wastewaters (WWs) to wastewater treatment plants (WWTPs) can be problematic due to their sometimes elevated concentrations of toxic compounds compared to municipal wastewater. Also, industrial WWs often contain compounds that are unique to the specific production, and the receiving WWTP is not always designed to remove these compounds. READ MORE