Autoradiographic comparisons of radionuclide adsorption between subsurface anaerobic biofilms and granitic host rocks

Anderson, Craig,1976Gothenburg University,Göteborgs universitet,Institutionen för cell- och molekylärbiologi,Department of Cell and Molecular Biology (författare)

In high level nuclear waste repositories, the host rock is considered to be an important barrier to radionuclide migration by adsorbing metals at fluid rock interfaces. In granitic rock environments the surfaces of hydraulically conductive fractures are covered with mixed community biofilms. Biofilms were grown in situ on glass and rock surfaces in high pressure flow cells using groundwater sourced from a borehole 450 meters below sea level in the Aspo hard rock laboratory, Sweden. Scanning electron microscopy (SEM), epifluorescence microscopy and energy dispersive X-Ray spectroscopy (EDS) revealed monolayer biofilms consisting of up to 2 x 10(4) bacteria/mm(2) surrounded by an extensive extracellular matrix and carbonate precipitates that covered

NATURVETENSKAP Biologi Biokemi och molekylärbiologi hsv//swe
NATURAL SCIENCES Biological Sciences Biochemistry and Molecular Biology hsv//eng
NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
NATURVETENSKAP Kemi hsv//swe
NATURAL SCIENCES Chemical Sciences hsv//eng
performance assessment
promethium
granite repository
cobalt
Aspo hard rock laboratory
actinides
fracture associated biofilms
groundwater
Aspo hard rock laboratory; granite repository; groundwater; performance assessment; fracture associated biofilms; actinides; cobalt; promethium

Pedersen, Karsten,1952Gothenburg University,Göteborgs universitet,Institutionen för cell- och molekylärbiologi,Department of Cell and Molecular Biology(Swepub:cth)karped (författare)
Jakobsson, Anna-Maria,1970Chalmers tekniska högskola,Chalmers University of Technology (författare)
Göteborgs universitetInstitutionen för cell- och molekylärbiologi (creator_code:org_t)

Ingår i:Geomicrobiology Journal: Informa UK Limited23:1, s. 15-290149-04511521-0529

Av författaren/redakt...: Anderson, Craig, ...; Pedersen, Karste ...; Jakobsson, Anna- ...

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