Sökning: "phosphorous recovery"

Hittade 5 uppsatser innehållade orden phosphorous recovery.

  1. 1. 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

  3. 2. Biowaste Non-Sorters : who cares. Examining arguments and factors from citizens not sorting biowaste in Copenhagen and recommendations for a way forward

    Master-uppsats, Lunds universitet/LUCSUS

    Författare :Stephanie Touveneau Petersen; [2018]
    Nyckelord :biowaste; recycling; waste hierarchy; municipal waste management; urban resource management; phosphorous recovery; Earth and Environmental Sciences;

    Sammanfattning : The Danes’ have the highest municipal waste generation per capita in the European Union and it is estimated that 40% of residual waste is biowaste. Fortunately, it is possible to address environmental pressures and counteract resource loss from incineration by the process of bio-gasification of collected biowaste in Denmark. LÄS MER

  4. 3. Challenges during start-up of urine nitrification in an MBBR

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Ellen Ascard Edefell; [2017]
    Nyckelord :Urine; source-separation; urine stabilisation; nitrogen recovery; nitrification; moving bed biofilm reactor; MBBR; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Technology and Engineering;

    Sammanfattning : Nitrogen and phosphorous compounds are secreted by humans and treated in wastewater treatments plants. These substances are also found in agricultural fertilisers and needed for plant growth. Nutrient recycling is limited in conventional treatment systems and valuable products are lost. LÄS MER

  5. 4. sSWOT-analysis of the introduction and usage of faecal sludge as fertiliser in agriculture in the Western Cape Province, South Africa

    Kandidat-uppsats, KTH/Industriell ekologi

    Författare :Felicia Frise; Anna Ringström; [2017]
    Nyckelord :;

    Sammanfattning : For future generations, securing nutrients and minimising the biochemical flows are significant challenges for humanity. Due to this, it is important to develop new phosphorous recovery methods from alternative sources to secure food production, reach sustainable development and circular economy. LÄS MER

  7. 5. Phosphorous Desorbing Capacity of the Filter Materials Polonite® and Sorbulite®.

    Master-uppsats, KTH/Mark- och vattenteknik

    Författare :Meheret Kassa; [2013]
    Nyckelord :Polonite®; Sorbulite®; Nutrient removal and recovery; Phosphorus; Sorbent; extracts; desorption;

    Sammanfattning : Replacing the lost Phosphates from different ecosystems is not a question it’s an onus. This none replaceable and renewable resource is one of the vital nutrients where without it, cells, crops and human beings cannot function and live. LÄS MER