GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1980-1984  (2)
Document type
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Environmental geology 5 (1983), S. 49-52 
    ISSN: 1432-0495
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The underground transport of pathogenic bacteria and viruses may be described by the general transport equation considering dispersion, adsorption, and biological elimination. The survival time of bacteria and viruses in groundwater is different for the specific species and for the specific groundwater environment. Dispersion causes a distribution of pollutants in time and space, thus their concentration decreases over time and with transport distance. Microorganisms are reversibly adsorbed on underground particles, which causes a retardation of their transport velocity with respect to groundwater flow velocity. An additional approach is provided by the filter theory.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Innerhalb eines interdisziplinären Forschungsvorhabens wurden ausgewählte Umweltchemikalien (Simazin, Lindan, Trichlorethen, Tetrachlorethen) in ein 100 m langes künstliches Grundwassergerinne eingespeist, welches mit verdünntem Sickerwasser einer aerob betriebenen Deponie beschickt wird. Durch eine Vielzahl von Probenahmestellen ist es möglich, eine Vorstellung von der dreidimensionalen Verteilung der Substanzen im Gerinne zu erhalten. Außerdem lassen sich Schlüsse hinsichtlich Eliminations- und Rückhalteprozessen machen. Über die Probleme der Probenahme und Analytik der ausgewählten Stoffe wird berichtet. Es zeigte sich, daß die Entnahme- und Meßverfahren wegen der schwierigen Feldbedingungen bzw. der komplexen Zusammensetzung der Matrix zunächst gewisser Anpassungen bedurften.
    Notes: Summary Selected chemical substances (simazine, lindane, tri-, tetrachloroethene) were fed into an artificial aquifer (100 m) operated with diluted seepage water from an aerobic landfill. Numerous sampling points made it possible to obtain more information about a three-dimensional distribution of the substances within the aquifer. Elimination and retention can be observed as well. Problems of sampling and analytical procedures are discussed. It was obvious that the methods of sampling and determination required certain adaptions because of the difficult local conditions and the complex matrix composition, respectively. The work was carried out within the scope of an interdisciplinary research programme.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...