Sökning: "pulp and paper mill wastewater"

Visar resultat 16 - 20 av 24 uppsatser innehållade orden pulp and paper mill wastewater.

  1. 16. Drying biosludge with a high-velocity cyclone dryer

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

    Författare :Jenny Edler; [2014]
    Nyckelord :Sludge; drying; high-velocity cyclone;

    Sammanfattning : Sludge disposal is a worldwide problem due to increasing volumes and respective environmental regulations. Currently the most common ways to dispose sludge are agricultural use, disposal in landfills, incineration and sea dumping. By drying sludge volumes can be decreased and the respective heating value increased. LÄS MER

  3. 17. UV pretreatment of Alkaline Bleaching Wastewater from a Kraft Pulp and Paper Mill prior to Anaerobic Digestion in a Lab scale UASB Reactor

    Master-uppsats, Tema vatten i natur och samhälle; Filosofiska fakulteten

    Författare :Marielle Karlsson; [2013]
    Nyckelord :Anaerobic digestion; biogas; UV pretreatment; UV H2O2; UASB; EOP wastewater; lignin; kraft pulp and paper mill;

    Sammanfattning : The effects of UV pretreatment on alkaline bleaching (EOP) wastewater from a kraft pulp and paper mill were investigated prior to anaerobic digestion (AD) in an upflow anaerobic sludge blanket (UASB) reactor. The aim was to enhance the methane production, increase the reduction of total organic carbon (TOC) and determine the best UV exposure time. LÄS MER

  4. 18. Advanced Oxidation Processes for removal of COD from pulp and paper mill effluents : A Technical, Economical and Environmental Evaluation

    Master-uppsats, KTH/Industriell ekologi

    Författare :Irma Karat; [2013]
    Nyckelord :Advanced Oxidation Processes; Ozone; Wastewater Treatment; COD; Pulp and Paper Industry;

    Sammanfattning : In Sweden, the dominating source for emissions of degradable organic substances to water is the pulp and paper industry. The organic substances increase oxygen consumption in the recipient which subsequently threatens aquatic species. LÄS MER

  5. 19. Energieffektivisering av aerob reningsprocess : Tillsats av biprodukter i skogsindustriellt avloppsvatten

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

    Författare :Isabell Niklasson; [2013]
    Nyckelord :Aerobic wastewater energy efficiency pulp-and paper aeration; Energieffektivisering skogsindustriellt pappersbruk luftningsprocess reningsteknik elfilteraska;

    Sammanfattning : In the production of pulp, paper and cardboard, a large amount of water is used daily. The water has to be purified in the internal purifying plant before it reaches the receiving body of water. LÄS MER

  7. 20. Anaerobic digestion of pre-treated biological sludge from pulp and paper industry using heat, alkali and electroporation

    Uppsats för yrkesexamina på avancerad nivå, Tema vatten i natur och samhälle

    Författare :Lina Cardell; [2010]
    Nyckelord :Alkali; heat; electroporation; anaerobic digestion; biological sludge; pre-treatment; pulp and paper industry; Alkali; elektroporering; anaerobisk rötning; bioslam; förbehandling; pappers- och massaindustri;

    Sammanfattning : The biological sludge formed in the pulp and paper wastewater treatment constitutes a costlyproblem to dispose off due to poor dewaterability. It is often incinerated or used as soilconditioner improvement. By using anaerobic digestion of the biological sludge, thedewaterability can be increased. LÄS MER