Sökning: "denitrification"

Visar resultat 31 - 35 av 82 avhandlingar innehållade ordet denitrification.

  1. 31. Immobilized whole-cell catalysts : applied to steroid conversions and denitrification of water (part 1) ; HPLAC = High performance liquid affinity chromatography (part 2)

    Författare :Sten Ohlson; Lund University; []
    Nyckelord :Bioteknik; Biotechnology;

    Sammanfattning : .... LÄS MER

  2. 32. Ecology and genomics of microorganisms reducing the greenhouse gas N₂O : examples from the rhizosphere

    Författare :Daniel Graf; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Nitrous oxide (N₂O) is a potent greenhouse gas and the major ozone depleting substance in the stratosphere. One major source of N₂O is incomplete denitrification, whereas the only known tropospheric sink of N₂O is the microbial enzyme nitrous oxide reductase. LÄS MER

  3. 33. The role of sediments in nitrogen cycling in the larger Baltic Sea

    Författare :Anne Stockenberg; Lars Peter Nielsen; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microbiology; Mikrobiologi; mikrobiologi; Microbiology;

    Sammanfattning : The eutrophication of coastal areas has become a widespread problem over the last decades. In the Baltic Sea, the input of nitrogen and phosphorus has increased by four and eight times, respectively, since the turn of the century, and this is considered the direct cause of the eutrophication of this ecosystem. LÄS MER

  4. 34. Ecology of fungal denitrifiers in terrestrial ecosystems : global patterns and effects of management in agricultural soils

    Författare :Yvonne Bösch; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Denitrification is the dominant source of nitrous oxide (N2O) from terrestrial ecosystems, a potent greenhouse gas and stratospheric ozone-depleting agent. Fungi can perform denitrification and terminate the process with N2O, making them a potentially important source of N2O. LÄS MER

  5. 35. Nitrogen removal by wetlands in a cold climate : understanding interactions between macrophytes and microorganisms

    Författare :Maidul Choudhury; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Nitrogen (N), a fundamental component of living organisms, has become one of the main global concerns for human society due to the myriad of negative effects of excessive N on ecosystems. Anthropogenic activities such as agriculture, industrial production, urbanisation and mining are major sources of N to freshwaters. LÄS MER