Sökning: "sulphate-reducing bacteria"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden sulphate-reducing bacteria.

  1. 1. Microbial ecology in deep granitic groundwater - activity and impact of viruses

    Författare :Hallgerd Eydal; Göteborgs universitet; []
    Nyckelord :ATP; Desulfovibrio; groundwater; bacteriophage; Podoviridae; sulphate-reducing bacteria; viral ecology;

    Sammanfattning : The deep subsurface environments in granitic rock can be studied and sampled at the Äspö hard rock laboratory (HRL) close to Oskarshamn in Sweden. Here, the groundwater is anaerobic and total counts give numbers of 104 to 106 cells mL-1. However, these measurements do not reveal if the cells are active and alive. LÄS MER

  3. 2. Microbial Treatment of Heavy Metal Leachates

    Författare :Teresa Alvarez Aliaga; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; pollution control; Environmental technology; algal-bacterial symbiosis.; metal precipitation; biosorption; biogenic sulphide; municipal and agricultural solid wastes organic matter degradation; sulphate-reducing bacteria; Bioremediation; heavy metals removal; Miljöteknik; kontroll av utsläpp; Biotechnology; Bioteknik;

    Sammanfattning : Ore-mining, metallurgy and other industrial activities represent the source of heavy metal and radionuclide contamination in terrestrial and aquatic environments. Physico-chemical processes are employed for heavy metal removal from industrial wastewater. LÄS MER

  4. 3. Microbial remediation of heavy metal ion polluted soil and water

    Författare :Torbjörn Håkansson; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EDTA; metal; soil; remediation; Sulphate reducing bactera; biogas; water;

    Sammanfattning : Contamination of soil and water by heavy metal ions (HMs) is a problem all over the world.The use of biological methods alone or in combination with other techniques for treatment of such polluted sites constitutes a major challenge. LÄS MER

  5. 4. Precipitation and fixation of uranium in reduced environment : simulation in a continuous culture of sulfate-reducing bacteria

    Författare :Ulf G. Edvardsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The precipitation and fixation of the uranyl ion (U022+), in a reduced environment, has been investigated by means of continuous cultivation of sulphate-reducing bacteria. The continuous culture sustem made it possible to study the chemical reactions under physico-chemical conditions (e.g. LÄS MER

  7. 5. Environmental and climatic changes in the Baltic Sea and the eastern Mediterranean Sea : as recorded by pigments and isotopes in sediments

    Författare :Johanna Borgendahl; Rolf Hallberg; Joyanto Routh; Stefano Bernasconi; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap;

    Sammanfattning : This thesis is a study of Holocene sapropels from two semi-enclosed seas; the Baltic Sea and the Mediterranean Sea. Sapropels are sedimentary layers with organic C > 2%. LÄS MER