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  3. Trace metal substitution in and release from jarosite
Title

Trace metal substitution in and release from jarosite

    Item Description
    Limited Access
    The author(s) chose to restrict access to this thesis to current Whitman students, faculty, and staff. Please log in to view it.
    Linked Agent
    Creator (cre): Anthony, Jason Lin
    Advisor (adv): Kimball, Bryn
    Department (dpt): Whitman College. Geology Department
    Date
    May 11, 2016
    Graduation Year
    2016
    Abstract

    Historical mines were often unregulated and may release acidic, metal-rich water known as acid mine drainage (AMD) that results from the dissolution of metal sulfides. A common AMD remediation method is neutralization of pH. This causes precipitation of secondary iron hydroxide minerals and dissolved metals from solution. The stability of trace metal substituted (TMS) iron hydroxides is not well understood. This study investigates the mobility of trace metal ions, specifically cobalt, as it is substituted into the mineral structure of jarosite [KFe₃(OH)₆(SO₄)₂]. Leach experiments were conducted with synthesized pure and cobalt substituted jarosite. In addition, the character of water and precipitate samples from Blackbird Creek, a mining-affected, remediated stream in the Idaho Cobalt Belt are described. The goal of this work is to understand how cobalt substitution affects the stability of jarosite and to compare synthetic jarosite to that in sediments found at Blackbird Creek.

    Subject
    Cobalt (Idaho) -- Blackbird Creek
    Jarosite
    Cobalt
    Metal ions -- Environmental aspects
    Acid mine drainage
    Science
    Academic theses
    Whitman College 2016 -- Dissertation collection -- Geology Department
    Geographic Subject
    United States
    Idaho
    Cobalt (Idaho)
    Genre
    Theses
    Extent
    41 pages
    Permanent URL
    http://works.whitman.edu/201608051288
    Rights
    http://rightsstatements.org/vocab/InC/1.0/
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