Sökning: "indicator bacteria"

Visar resultat 1 - 5 av 21 avhandlingar innehållade orden indicator bacteria.

  1. 1. Suspended solids and indicator bacteria in stormwater runoff Sources of bias in field measurements

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Helen Galfi; Luleå tekniska universitet.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

    Sammanfattning : Stormwater quality monitoring and control is a prerequisite for sustainable water resources management in urban areas. Stormwater monitoring programs are based on general water sampling guidance and, in the absence of standard procedures, employ various sampling and analytical methods. LÄS MER

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

    Detta är en avhandling från Stockholm : Bioteknologi

    Författare :Caroline Höglund; KTH.; [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

  3. 3. Nutrient Limitation of Bacterial Growth in Soil

    Detta är en avhandling från Department of Ecology, Lund University

    Författare :Fredrik Demoling; Lunds universitet.; Lund University.; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ekologi; Ecology; Fertilization; Bacteria; Soil; Fungi; Thymidine or Leucine incorporation; Growth limitation; Phosphorus; Nitrogen; Carbon;

    Sammanfattning : Lack of carbon has been assumed to be the most common limiting factor for bacterial growth in soil, although there are reports of limitation by nitrogen and phosphorus. I have studied nutrient limitation of bacterial growth in soil using a novel technique, where thymidine or leucine incorporation is used to detect changes in growth rates after adding nutrients. LÄS MER

  4. 4. Hygiene Aspects of Greywater and Greywater Reuse

    Detta är en avhandling från Stockholm : Mark och vatten

    Författare :Jakob Ottosson; KTH.; [2003]
    Nyckelord :greywater; greywater reuse; greywater treatment; microbial risk assessment; groundwater recharge; irrigation; recreational water; faecal contamination; indicator bacteria; index organisms; faecal sterols; bacteriophages; enteric pathogens; rotavirus; ;

    Sammanfattning : Greywater is domestic household wastewater without inputfrom the toilet, i.e. wastewater from sinks, the shower,washing machine and dishwasher in a home. Source separation ofgreywater can be a strategy to enhance recirculation of plantnutrients and/or improve water use. LÄS MER

  5. 5. The external mycorrhizal mycelium - growth and interactions with saprophytic microorganisms

    Detta är en avhandling från Microbial Ecology, Lund University

    Författare :Pål Axel Olsson; Lunds universitet.; Lund University.; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bacteriology; Microbiology; Fatty acids; Mycorrhiza; Bacteria; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Sammanfattning : Popular Abstract in Swedish Mykorrhiza är symbiosen mellan växters rötter och olika svampar. När en symbios har etablerats i en rot växer svampens mycel ut i marken och tar där upp näring som levereras till växten. I denna avhandling studerades hur man kan mäta detta mycel i marken med hjälp av biokemiska markörer. LÄS MER