Treatment of mine water with colloidal suspensions

Johnston, Kristine Leigh (2006) Treatment of mine water with colloidal suspensions. [USQ Project] (Unpublished)


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Groote Eylandt Mining Company (GEMCO) mines manganese from leases of land
with Arhnem Land’s traditional owners. The open cut mining operation requires
dewatering of quarries, with some of the quarries being located in areas of
montmorillonite (commonly known as smectite) clay.
Through the action of groundwater infiltration through, and stormwater runoff over
the exposed clay surface surrounding the quarry, the clay becomes finely dispersed
which results in highly turbid quarry water. This colloidal suspension of clay in the
water is attributed to the surface of the clay particles carrying a negative surface
charge leading to a stable colloidal system of ultra fine particles. The particles do not
settle out over time.

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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 11 Oct 2007 01:07
Last Modified: 02 Jul 2013 22:44
Uncontrolled Keywords: colloidal suspensions; groote eylandt mining company (GEMCO); mines; montmorillonite; clay; smectite; water; sedimentation; gypsum
Fields of Research (FoR): 09 Engineering > 0905 Civil Engineering > 090508 Water Quality Engineering
09 Engineering > 0905 Civil Engineering > 090509 Water Resources Engineering

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