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  • 1
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    Characterizing As, Cu, Fe and U solubilization by natural waters (2010)
    Springer-Verlag, Berlin/Heidelberg | Springer, Berlin/Heidelberg
    Details
    Publication Date: 2021-03-29
    Description: The effects of carbonate concentration and the presence of in-situ generated iron oxide and hydroxide phases (iron oxyhydroxides) on arsenic (As), copper (Cu), and uranium (U) release from natural rocks were investigated under oxic conditions and in the pH range from 6 to 9. For this purpose non-disturbed batch experiments were conducted with a constant amount of each contaminant bearing rock/mineral and different types of water (deionised, mineral, spring, and tap water). For comparison parallel experiments were conducted with 0.1 M Na2CO3 and 0.1 M H2SO4. The favourable role of carbonate bearing minerals for U and Cu transport could not be confirmed by using dolomite. The presence of elemental iron and pyrite retards As, Cu and U solubilization. This study shows that using natural materials in laboratory investigations is a practical tool to investigate natural processes.
    Description: research
    Keywords: 551.9 ; VJF 000 ; Umweltgeochemie insgesamt
    Language: English
    Type: article , draft
    Format: 10 S.
    Format: application/pdf
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  • 2
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    Elemental iron (Fe0) for better drinking water in rural areas of developing countries (2010)
    Springer, Berlin/Heidelberg
    Details
    Publication Date: 2021-03-29
    Description: Many of the reasons behind the anthropogenic contamination problems in rural environments of developing countries lie in changes in the traditional way of life and the ignorance on the toxic potential of introduced manufactured products. A generalization trend exists within the international community suggesting that water in developing countries is of poor quality. However, the water quality is rarely analytically determined. Existing potabilization solutions may be prohibitively expensive for the rural populations. Therefore, efficient and affordable technologies are still needed to ameliorate the water quality. In the recent two decades,elemental iron has shown the capacity to remove all possible contaminants (including viruses) from the groundwater. This paper presents a concept to scale down the conventional iron barrier technology to meet the requirements of small communities and households in rural environments worldwide.
    Description: research
    Keywords: 551.9 ; VJF 000 ; Umweltgeochemie insgesamt
    Language: English
    Type: article , draft
    Format: 9 S.
    Format: application/pdf
    Location Call Number Expected Availability
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    CITATION GEO-LEO
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