Sökning: "moisture recycling"

Visar resultat 11 - 15 av 16 avhandlingar innehållade orden moisture recycling.

  1. 11. Microbial mobilization and immobilization of soil nitrogen

    Författare :Per Bengtson; MEMEG; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; growth rate; microbial activity; respiration; assimilation; immobilization; Nitrogen; mineralization;

    Sammanfattning : Microorganisms in forest ecosystems normally recycle nitrogen (N), such that gaseous losses and leaching are limited. Mobilization of organic N, including microbial N, and immobilization of inorganic N, especially NH4+, are the quantitatively most important N transformation processes. Various factors influence their rates, e.g. LÄS MER

  3. 12. Pathogen inactivation and regrowth in organic waste during biological treatment

    Författare :Josefine Elving; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : After proper sanitation treatment, organic wastes such as animal by-products, e.g.catering waste, slaughterhouse waste and manure can be used as fertilisers and soil conditioners and thereby contribute to a sustainable society. LÄS MER

  4. 13. Green-Blue Water Potential: : Building water resilience to attain the SDGs on food and poverty in Africa

    Författare :Maganizo Kruger Nyasulu; Ingo Fetzer; Stefan Liersch; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; agriculture; green-blue water resilience; sustainable development goals; climate change; land use change; vetenskap om hållbar utveckling; Sustainability Science;

    Sammanfattning : Attaining the Sustainable Development Goals (SDGs) of eradicating hunger and securing sustainable food for all by 2030, constitutes a major global challenge, particularly in sub-Saharan Africa (SSA). Here, malnourishment, poverty, and population growth are among the highest in the world, and some regions are constantly subject to extreme water variability and scarcity. LÄS MER

  5. 14. Treatment technologies for human faeces and urine

    Författare :Charles Niwagaba; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis examines simple, cheap, environmentally friendly and resource efficient technologies for the treatment of source-separated human faeces and urine to enable safe recycling of their plant nutrients for plant production in developing countries. Composting of faeces-to-food waste (F:FW) in wet weight mix ratios of 1:0, 3:1 and 1:1 was studied in 78 L reactors insulated by 25 mm styrofoam; and of F:FW in wet volume/weight ratios of 1:0, 1:1 and 1:3 in 216 L reactors insulated by 75 mm styrofoam. LÄS MER

  7. 15. GASIFICATION-BASED BIOREFINERY FOR MECHANICAL PULP MILLS

    Författare :Jie He; Engstrand Per; Zhang Wennan; Olof Björkqvist; Dahlquist Erik; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gasification; Mechanical Pulping; Bio-fuels; Power Generation; Biomass Residues; ASPEN Plus;

    Sammanfattning : The modern concept of "biorefinery" is dominantly based on chemical pulp mills to create more value than cellulose pulp fibres, and energy from the dissolved lignins and hemicelluloses. This concept is characterized by the conversion of biomass into various biobased products. LÄS MER