S. J. ZENG ET AL.
Copyright © 2013 SciRes. CWEEE
particles displacing hydroxyl groups and forming a
Si-O-Fe bond during the formation of colloid par-
ticles;
● A layer with low oxygen permeability is established
which reduces oxidation rates significantly. The
transformation to goethite via dissolution and
re-precipitation is re ta r ded.
5. Acknowledgements
This research has been funded by an Australian Postgra-
duate Award Industr y (APAI) through an Australian Re-
search Council Linkage Project Grant with AMIRA In-
ternational (Mr Gray Bailey). Sponsors of the Savage
River Rehab ilitation Pro ject (SRRP), Hidden Valley Ser-
vices, BHP Billiton Iron Ore, Rio Tinto Ltd. and Teck
Ltd. to support the Project are gratefully acknowledged.
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