Sökning: "rotating bed reactor"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden rotating bed reactor.

  1. 1. Automation of a rotating bed reactor for PFAS remediation

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Axel Martin; [2023]
    Nyckelord :Programming; automation; experimentation; optimization;

    Sammanfattning : Properties such as being water and oil repellent and being heat resistant make per- and polyflouroalkyl substances (PFAS) useful in a wide range of products. Since they do not break down in the environment, PFAS pollution makes it way back into drinking water and seafood. LÄS MER

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

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

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

    Sammanfattning : 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. LÄS MER

  4. 3. Development of a Flow Dependent Chemical Reaction Model using CFD

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Martin Östman; [2022]
    Nyckelord :CFD; Fluid mechanics; Rotating Bed Reactor; Ansys Fluent; Decolorization; CFD; Strömningsmekanik; Roterande Bäddreaktor; Ansys Fluent; Avfärgningsprocess;

    Sammanfattning : In many technical applications chemical reactions are used. One of these is a so called decolorization, in which an ion exchange resin is used to remove a dye from water. To apply this decolorization technique a Rotating Bed Reactor, or RBR for short, can be used. It is filled with the ion exchange resin and spun inside the water. LÄS MER

  5. 4. PIV measurements of rotational flow in a porous medium : A masters thesis in fluid dynamics and experimental mechanics

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Björn Skarman; [2022]
    Nyckelord :PIV; particle image velocimetry; velocimetry; refractive index matching; porous medium; rotational flow;

    Sammanfattning : The purpose of this work is to test the feasibility of using particle image velocimetry(PIV) for measurements of flow through a porous medium, more specifically in this casea rotating bed reactor S3. The results from experiments preformed can then be usedto validate and improve computational fluid dynamics models. LÄS MER

  7. 5. Purification of watercontaminated by poly- andperfluorinated chemicals : Analysing the efficiency of the combinedtechniques ion exchange resin and rotating bedreactor

    Kandidat-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Jessica Borgström Mellergård; [2021]
    Nyckelord :;

    Sammanfattning : Development and usage of poly-and perflourinated chemicals has increased considerablysince their discovery. They have since then polluted our environment and are exposed tohumans via drinking water and sea food amongst others. LÄS MER