Sökning: "urine-separation"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet urine-separation.

  1. 1. Evaluation of microbial health risks associated with the reuse of source-separated humna urine

    Författare :Caroline Höglund; KTH; []
    Nyckelord :urine-separation; urine; wastewater systems; wastewater reuse; recycling; enteric pathogens; faecal sterols; indicator bacteria; hygiene risks; microbial persistence; microbial risk assessment; QMRA; fertiliser; crop;

    Sammanfattning : Human excreta contain plant nutrients and have the potentialto be used as a fertiliser in agriculture. Urine contributesthe major proportion of the nutrients (N, P and K) in domesticwastewater whereas faeces contribute a smaller amount andinvolves greater health risks if reused due to the possiblepresence of enteric pathogens. LÄS MER

  3. 2. Nutrient management in sewerage systems : investigations of components and exergy analysis

    Författare :Daniel Hellström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : The aim of this thesis is to present results from different experiments dealing with components that may be useful to improve nutrient management within sewerage systems. Further, exergy analysis is used to compare the utilisation of physical resources within different alternatives for sewerage nutrient management. LÄS MER

  4. 3. Environmental Systems Analysis of Wastewater Management

    Författare :Erik Kärrman; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The history of wastewater management tells us that efforts have been made at solving only one problem at the time; sanitation during the first half of the 20th Century followed by eutrophication of lakes and sea and, for the past ten years, recycling of nutrients. After the "Brundtland Report", 1987, a reversal of the debate occurred where water management was discussed in a more holistic manner than before. LÄS MER

  5. 4. Urban wastewater systems: From disposal to reuse. A study of different systems with focus on water and nutrients flows

    Författare :Justyna Czemiel Berndtsson; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Storm Water; Urban; Wastewater; Civil engineering; offshore technology; hydraulic engineering; Väg- och vattenbyggnadsteknik; soil mechanics; pollution control; Environmental technology; Miljöteknik; kontroll av utsläpp; Nutrients;

    Sammanfattning : Urban wastewater systems are currently exposed to a major rethink dictated by new demands on resource management. It is postulated that next to providing efficient sanitation (preventing spread of pathogenic microorganisms) these systems should support resource reuse. LÄS MER

  7. 5. Kommunerna och kretsloppet : avloppssektorns förändring från rening till resurshantering

    Författare :Henriette Söderberg; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : "The recycling society" and "the sustainable society" are concepts used by the Swedish government to express visions for the future, in which one goal is to find more appropriate ways of managing resources. The government has appointed the municipalities to be the prime movers in the process of change which will be necessary to obtain a sustainable development. LÄS MER