Sökning: "urine"

Visar resultat 1 - 5 av 459 avhandlingar innehållade ordet urine.

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

    Detta är en avhandling från Stockholm : Bioteknologi

    Författare :Caroline Höglund; [2001]
    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

  2. 2. Determination of benzene in urine and breath for monitoring of benzene exposure

    Detta är en avhandling från Stockholm : Bioteknologi

    Författare :Göran Ljungkvist; Göteborgs universitet.; Gothenburg University.; [2001]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biological monitoring; benzene; breath; urine; dynamic headspace; membrane; gas chromatography; mass spectrometry; thermal desorption;

    Sammanfattning : The aim of this work was to develop and validate methods for determination of unmetabolized benzene in breath and urine. The methods were intended for the bio monitoring of benzene to assess both occupational and environmental exposure.A method was developed for the determination of benzene in end-exhaled air. LÄS MER

  3. 3. Urine separating wastewater systems experiences of design and nitrogen conservation

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Erica Johansson; [1999]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : Urine separating (US) wastewater systems, where urine is collected and used as a fertiliser, may be a strategy to achieve a high degree of nutrient recycling from human waste to agriculture. The Swedish experiences of US systems show that the design of the toilets and the sewers are of great importance to achieve a working system. LÄS MER

  4. 4. Methods for the Assessment of Long-Lived Radionuclides in Humans Resulting from Nuclear Activities or Accidents - Fission track analysis of trace-amounts 239Pu and a copper hexacyanoferrate kit for monitoring radiocaesium

    Detta är en avhandling från Department of Radiation Physics, Lund university

    Författare :Lena Johansson; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; caesium; plutonium; fission track analysis; urine; internal contamination; whole-body counting; Physics; Chernobyl; Fysik; Chemistry; Kemi;

    Sammanfattning : Fission track analysis (FTA) was developed to be applied to ultra-low levels of 239Pu in bioassay samples. An analytical protocol was established for the FTA processing. The detection limit was determined to 1.5 µBq and the calibration constant was 24 fission fragments per µBq 239Pu. LÄS MER

  5. 5. Metabolism and Biological Monitoring of Organic Acid Anhydrides

    Detta är en avhandling från Department of Radiation Physics, Lund university

    Författare :Christian Lindh; [1998]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rats; human; distribution; analysis; biological monitoring; autoradiography; adducts; hemoglobin; plasma; urine; Hexahydrophthalic anhydride; methyltetrahydrophthalic anhydride; guinea pigs; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin;

    Sammanfattning : The aim of this thesis was to describe the metabolism and to develope methods for biological monitoring for two organic acid anhydrides (OAAs), namely hexahydrophthalic anhydride (HHPA) and methylhexa-hydrophthalic anhydride (MHHPA). The OAAs are reactive, low molecular weight chemicals used in vast quantities in the industry. LÄS MER