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 Photo of ferrous iron settling out from AMD (Photo by J.J. van Wyk March 2011) |
 AMD decant from the West Rand underground mining basin (Photo by J.J. van Wyk March 2011) |
 A capped mine shaft on the West Rand releasing AMD decant (Photo by J.J. van Wyk March 2011) |
 Ferrous iron precipitating from AMD in a wetland on the West Rand (Photo by J.J. van Wyk March 2011) |
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 AMD decanting from an abandoned mine shaft (Photos by S. du Toit) |
 Example of an abandoned mine shaft (Photos by S. du Toit) |
 Measuring water quality in a river polluted with AMD (Photos by S. du Toit) |
 When the pH of AMD is raised past 3, the iron in the water precipitates out as ferric hydroxide, forming a hard yellow layer on rocks, roots, etc (Photos by S. du Toit) |
 Salt accumulation on the banks of a river polluted with AMD (Photos by S. du Toit) |
 Typical colour of a river polluted with AMD (Photos by S. du Toit) |
 Schematic Model of the Western Basin |
Neutralisation Facility at Rand Uranium (Gold1) Shaft 8 in the Western Basin (photo by J. van Wyk, May 2013) |
.JPG) Wes-Wits Pit, Western Basin (Photo by J. van Wyk, May 2013) |
.jpg) Raw-AMD-Decanting-from-a-Shaft-in-the-Western-Basin-(Photo-by-J.J.-van-Wyk-Feb-2010) |