Sökning: "nutrients removal"

Visar resultat 1 - 5 av 99 uppsatser innehållade orden nutrients removal.

  1. 1. Production of natural pigments from A. platensis grown on wastewater from local treatment facility.

    Master-uppsats, Lunds universitet/Teknisk mikrobiologi; Lunds universitet/Bioteknik

    Författare :Hana Faulds; [2023]
    Nyckelord :Cyanobacteria; pigments; microalgae; wastewater treatment; biotechnology; Technology and Engineering; Biology and Life Sciences;

    Sammanfattning : Although microalgae have been considered for the biological treatment of wastewater since the 1950’s, their potential to efficiently remove pollutants from various streams remains largely untapped and is yet to be utilized at large scale. The production of algal biomass and extraction of high-value compounds has, however, become increasingly popular with large scale farms and biorefineries around the world producing many promising alternatives to petroleum-based products and processes. LÄS MER

  3. 2. Ecological impacts of dam removal in Swedish inland waters : Effects on water chemistry and fish demography

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Johanna Ekman; [2023]
    Nyckelord :biology; ecology; dam removal; Sweden; impact; inland waters; ecosystem; water chemistry; fish demography; Perca fluviatilis; European perch; biologi; ekologi; dammutrivning; Sverige; påverkan; inlandsvatten; ekosystem; vattenkemi; fiskdemografi; Perca fluviatilis; abborre;

    Sammanfattning : Dams play an important role in our society, but their negative impacts on aquatic ecosystems have led to a need for conservation efforts to mitigate the negative effects. In some instances, dam removal has been suggested to be the most economically and ecologically beneficial restoration method to improve longitudinal connectivity. LÄS MER

  4. 3. Effekten av flyktiga fettsyror (VFA) på tillväxten av mikroalger

    M1-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Raghad Kattan; Lina Kaakeh; [2023]
    Nyckelord :Mikroalger; anaerob jäsning; VFA; avloppsvatten;

    Sammanfattning : Anaerob jäsning antas vara en bra och effektiv metod för behandling av organiskt avfall. Avloppsvatten från denna process är mer utmanande beroende främst på dess höga innehåll av bland annat flyktiga fettsyror (VFA). LÄS MER

  5. 4. Extrahera tungmetaller ur rötrest med naturligt anskaffade ämnen

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Författare :Linda Watkins; Frida Jönsson; [2023]
    Nyckelord :;

    Sammanfattning : As the demand for biogas increases, so does the amount of digestate produced. Digestate contains large amounts of nutrients and has been introduced in agriculture as an alternative plant nutrient. LÄS MER

  7. 5. Using microalgae for removing nutrients from RAS aquaculture effluents - a viable strategy? A case study.

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Samuel Karlsson; [2022-07-06]
    Nyckelord :;

    Sammanfattning : The increased global demand for fish has caused a tremendous increase in aquaculture production during the last decade, emphasising the importance of systems with a low climate footprint. One such system is a recirculating aquaculture system (RAS) which is land-based as opposed to traditional open systems. LÄS MER