Sökning: "reningssteg"

Visar resultat 1 - 5 av 55 uppsatser innehållade ordet reningssteg.

  1. 1. Selected PFAS in the water treatment at the waste-to-energy plant in Umeå : Investigating concentration and composition of selected PFAS in different water treatment steps

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Amanda Carlund; [2023]
    Nyckelord :;

    Sammanfattning : The present study investigated the changes in concentration and composition of five selected PFAS substances in the water treatment at the waste-to-energy plant in Umeå. The five PFAS were PFHxA, PFHpA, PFOA, PFHxS and PFOS. As PFAS exists in a variety of consumer products, they will to some extent end up in waste incineration. LÄS MER

  3. 2. Wastewater Characterisation for Design and Modelling of Primary Settlers at Municipal Wastewater Treatment Plants

    Master-uppsats, Lunds universitet/Industriell elektroteknik och automation

    Författare :Louise Westin; [2023]
    Nyckelord :Primary Settling Tank; Wastewater Treatment; Settleometer; Particle Settling Velocity Distribution; Modelling.; Technology and Engineering;

    Sammanfattning : The primary settling tank (PST) is often one of the first treatment steps at a wastewater treatment plant (WWTP) and is the first process in the plant to remove significant amounts of suspended solids. Its role in wastewater treatment however, has oftentimes been neglected and little effort has been made to optimize and model the process. LÄS MER

  4. 3. Effects of recirculating water treatment sludge

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Sofia Mile; [2023]
    Nyckelord :Chemical Engineering; Water and Environmental Engineering; Water Treatment; Coagulation Flocculation; Sludge Recirculation; Technology and Engineering;

    Sammanfattning : Drinking water is crucial in our everyday life. As with many other processes, it is important to produce water of drinking quality in a sustainable manner. This can occur by e.g. LÄS MER

  5. 4. Finding ways of optimizing coagulant dosage, for a more sustainable wastewater treatment process

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Hanna Sjöman; [2023]
    Nyckelord :Wastewater treatment process; coagulant dosage; COD; machine learning; water and environmental engineering; Technology and Engineering;

    Sammanfattning : The wastewater treatment process at Oatly consists of several treatment steps of which, two are chemical treatment steps involving coagulation followed by flotation to remove phosphorous and COD. The coagulant dosage is mainly determined based on the operator’s experience and supported using results from jar tests. LÄS MER

  7. 5. Utvärdering av långtidstester med aktivt kol och anjonbytare för avskiljning av läkemedelsrester och PFAS från kommunalt avloppsvatten : Reningseffektivitet, kostnad och klimatpåverkan

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Sofia Olsson; [2023]
    Nyckelord :Pharmaceuticals; PFAS; PFOS; Activated Carbon; Anion Exchange; Advanced Treatment; Wastewater Treatment Plant; Cost; Climate Impact; Läkemedel; PFAS; PFOS; Aktivt kol; Anjonbytare; Avancerad rening; Avloppsreningsverk; Kostnad; Klimatpåverkan;

    Sammanfattning : Avloppsreningsverk utgör en viktig spridningsväg för läkemedelsrester till den akvatiska miljön. Även per- och polyfluorerade alkylsubstanser (PFAS) har påvisats i utgående vatten från avloppsreningsverk. För att minska utsläpp av dessa krävs ett kompletterande reningssteg. LÄS MER