Sökning: "eutrophication"

Visar resultat 1 - 5 av 463 uppsatser innehållade ordet eutrophication.

  1. 1. Seaweed with several benefits A qualitative study about companies’ interest in an environmental project of seaweed cultivations and important factors to consider when formulating a sustainable value proposition of the concept.

    Kandidat-uppsats, Göteborgs universitet/Företagsekonomiska institutionen

    Författare :Kajsa Eriksson; Lovisa Rogbring; [2021-06-30]
    Nyckelord :Environmental project; Seaweed cultivation; Kelp; Saccharina latissima; Climate change mitigation; Carbon offsetting; Eutrophication mitigation.;

    Sammanfattning : Climate change calls for urgent responsibility, not at least from companies, and limitingactivities is vital to not suppress Earth's systems. Carbon offsetting is a short-term solutionused by companies to lower its environmental impact, but new innovations are needed.Multiple researchers have stated several environmental benefits with seaweed, e.g. LÄS MER

  2. 2. En förstudie om näring- och energiåtervinning från källsorterande avloppssystem

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Författare :Sebastian Gisle; [2021]
    Nyckelord :hållbarhet; återvinning; resurshantering;

    Sammanfattning : The world's demand for nitrogen and phosphorus is increasing at the same time as high concentrations of the nutrients flow out from water treatment plants. The presence of nitrogen and phosphorus in nature is a contributing factor to eutrophication and thus damages ecosystems. LÄS MER

  3. 3. Massbalans av salt, kväve och fosfor i Dynestadsjön : En pilotstudie innefattande flödesmätningar och modellering

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Isak Spett; [2021]
    Nyckelord :Brackish water; fish death; eutrophication; environmental impact; the Baltic Sea; agriculture; SonTek-IQ Plus; MATLAB; Simulink; Bräckt vatten; fiskdöd; övergödning; miljöpåverkan; Östersjön; lantbruk; SonTek-IQ Plus; MATLAB; Simulink;

    Sammanfattning : Dynestadsjön in Gamleby, Västervik municipality, has a history of collapses due to lack ofoxygen and high levels of salt, nitrogen and phosphorus. The high levels of nutrients havegiven rise to deteriorating living conditions for aquatic organisms. LÄS MER

  4. 4. Hur påverkas markorganismerna av jordbruksmetoden strukturkalkning?

    Kandidat-uppsats, Lunds universitet/Miljövetenskaplig utbildning

    Författare :Maria Gustavsson; [2021]
    Nyckelord :structural liming; agriculture; microorganisms; clay soil; respiration; earthworm population; Earth and Environmental Sciences;

    Sammanfattning : This field study was done to get an understanding of how the agricultural method called “structural liming” might affect soil organisms in a negative way. Soil organisms are crucial as they perform biological processes that improve good soil structure. This is important as it enables sustainable food production, today, and in the future. LÄS MER

  5. 5. Legitimacy and justice on the verge of deterioration : A case study of Swedish local efforts to reduce eutrophication

    Master-uppsats, Södertörns högskola/Institutionen för naturvetenskap, miljö och teknik

    Författare :Amir Vafa; [2021]
    Nyckelord :eutrophication; sewage treatment plant; Baltic Sea; local management;

    Sammanfattning : Eutrophication is one of the major threats to the marine environment in the Baltic Sea. The human pressure on the sea by nutrient input from agriculture, industry, public sewage facility and small sewage treatment plants causes excessive algal blooms leading to oxygen depleted seabed and an ecosystem out of balance. LÄS MER