Sökning: "nutrients recycling"

Visar resultat 21 - 25 av 84 uppsatser innehållade orden nutrients recycling.

  1. 21. Towards Circular Economy : Wood ash management for biomass CHP plants in the UK

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Étienne Joseph Marcel Bastien; [2020]
    Nyckelord :;

    Sammanfattning : In response to climate change, the United Kingdom has committed to reach net zero greenhouse gas emissions by 2050. To reach the set target, the Committee on Climate Change is planning a notable increase of bioenergy up to 15% in the national energy mix and thus an increase of the amount of ash produced. LÄS MER

  3. 22. The possibilities of recycling wash water at Vidinge

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Julia Mauritzson; [2020]
    Nyckelord :reuse; treatment; fresh-cut; water engineering; environmental engineering; avloppsteknik; vattenförsörjningsteknik; Technology and Engineering;

    Sammanfattning : Water is a resource of importance and with drier weather around the world, including Swe-den, there is a risk of too low levels of water to satisfy for instance households, animals and industries in the future. Fresh-cut fruit and vegetable industries are water intense and almost all process water is used in the washing process. LÄS MER

  4. 23. The potential of innovative dry source-separating urban sanitation technologies in Montero, Bolivia : A sustainability assessment

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

    Författare :Ylva Geber; [2020]
    Nyckelord :Montero; UDDT; nutrient recycling; sanitation; sustainability; multiple criteria; health; resource use; environmental; technical; organizational; financial; fertilizer; Montero; UDDT; näringsåtervinning; sanitet; hållbarhet; multipla kriterier; hälsa; resursanvändning; miljö; tekniskt; organisatorisk; finansiellt; gödselmedel;

    Sammanfattning : Montero is one of the cities with the highest population growth inthe lowlands of Bolivia. According to Montero's municipal plan for water and sanitation, only 36 % of the population in the urban areas of Montero is connected to the sewage system. LÄS MER

  5. 24. Re-sourcing soil fertility : assessing the soil amendment potential of farm household resources and wastes in Bolo Silasie, Ethiopia

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Jorunn Hellman; [2020]
    Nyckelord :nutrient recovery; manure management; ecological sanitation; material flow analysis; East African agriculture;

    Sammanfattning : The global agriculture of today is to a high degree dependent on mineral fertilisers that through a constant accumulation of nitrogen (N) and phosphorus (P) in the biosphere contribute to greenhouse gas emissions and eutrophication of water bodies. At the same time, agricultural productivity around the world is largely constrained by low inputs of plant nutrients. LÄS MER

  7. 25. Teknikutvärdering av Urintorkning i Pilotskala – ett Fältförsök i Finland : Technical Evaluation of Urine Drying in Pilot Scale - a Field Experiment in Finland

    Uppsats för yrkesexamina på avancerad nivå,

    Författare :Caroline Karlsson; [2019]
    Nyckelord :Urine drying; dry sanitation system; alkaline stabilisation of urea; nutrient recovery; nitrogen; phosphorous; potassium; fertilizer; Urintorkning; basisk stabilisering av urea; torrt sanitetssystem; växtnäring; kväve; fosfor; kalium; gödsel; återvinning av näringsämnen;

    Sammanfattning : Av samtliga globala processer som reglerar jordsystemet är de biogeokemiska flödena av kväve (N) och fosfor (P) mest påverkade av mänskliga aktiviteter. Inerta former av N och P omvandlas till reaktiva former som sprids i miljön, där de orsakar eutrofiering och påverkar marina ekosystem negativt. LÄS MER