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Lookup NU author(s): Professor Adam Jarvis,
Professor Paul Younger
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Discharging mine waters can be treated actively, passively or by a combination of both treatment methods. The main aims of this research are to illustrate the design procedure for sizing an ochre accretion treatment scheme, and compare the costs of such a treatment with the costs of aerobic wetlands. The research presented below shows that surface catalysed oxidation of iron may be an alternative option to the installation of wetlands. However, this option depends on the value of the land available and on a mine water discharge that is alkaline with low iron loadings. It is argued that this technology is most suitable for the polishing of discharge and not the gross treatment for a discharge with significant iron loadings. However, it is important to consider that ochre accretion can be rapid and subsequent ochre accumulation may inhibit the effectiveness of the distribution system, reducing the effectiveness of this technology. Therefore, in designing a treatment system it may be prudent to consider a larger size reactor which would reduce the clogging effect of ochre accretion and allow for the reduction in reactor performance due to uneven discharge application over the surface media.
Author(s): Burke S, Banwart S, Jarvis AP, England A, Younger PL
Publication type: Article
Publication status: Published
Journal: Land Contamination & Reclamation
Print publication date: 01/04/2003
ISSN (print): 0967-0513
Publisher: EPP Publications
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