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VTI - Savage River Rehabilitation Project.

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    search for "Bauxsol" in .pdf files (hard core holders read all, recommended)

    Savage River Rehabilitation Project - Strategic Plan - December 2001
    Evaluate use of Bauxsol at Savage River - dosing systems, mixing with
    magnesite, etc
    McConchie (2001) reported the results of tests involving treatment of acid drainage from
    the Savage River Mine using BauxsolTM.
    Acid drainage from North Dump Drain was treated using the following methods:
    • Passing through a permeable reactive barrier containing BauxsolTM
    • Direct addition of BauxsolTM followed by settling and passing through a sand filter
    Excellent water quality results were achieved following treatment, with copper levels
    being reduced to 2-4 µg/l. The report claims that similar results were achieved using
    water from Old Tailings Dam seepage (west) though the results are not presented.
    [The report does not indicate the quantity of BauxsolTM consumed during the tests or the
    residence time of the acid drainage in the permeable reactive barrier. Sludge settling
    times and sludge volumes are also absent.]
    The report notes that a source of red mud for conversion to BauxsolTM is available at the
    Comalco, Bell Bay site in Tasmania. The report also states that creation of effective
    BauxsolTM blends using magnesite is likely to be feasible, though further test work is
    Page 36 of 50
    Addition of BauxsolTM to standing water bodies is said to be both economic and proven
    as a treatment methodolgy, however, the report acknowledges that the use of permeable
    reactive barrier technology for the treatment of flowing acid drainage is at a very early
    stage of development.

    from http://www.dpiwe.tas.gov.au/inter.nsf/WebPages/BHAN-53T4JD?open
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