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Please use this identifier to cite or link to this item: http://hdl.handle.net/11019/174

Title: Use of Ochre from an Abandoned Metal Mine in the South East of Ireland for Phosphorus Sequestration from Dairy Dirty Water
Authors: Fenton, Owen
Healy, Mark G.
Rodgers, M.
Keywords: dirty water
acid mine drainage
ochre
phosphorus
dissolution
sequestration
Issue Date: May-2009
Publisher: Soil Science Society of America
Citation: Use of Ochre from an Abandoned Metal Mine in the South East of Ireland for Phosphorus Sequestration from Dairy Dirty Water. O. Fenton, M.G. Healy, and M. Rodgers. Journal of Environmental Quality, 2009, Vol. 38 No. 3, p. 1120-1125
Series/Report no.: Journal of Environmental Quality;Vol. 38
Abstract: Ochre found at coal mine drainage sites in the United Kingdom shows a high phosphorus (P) retention capacity with little mobilization of metals. This indicates that ochre has the potential to adsorb P from agricultural wastewaters for possible use as a fertilizer. Little research has focused on the ability of metal mine ochre to sequester P in an environmentally sustainable way. Untreated acid mine drainage from an abandoned coppersulfur mine in the Avoca-Avonmore catchment in the south east of Ireland results in extensive low-value ochre deposition. In this study, P-amended water (50 mL) was mixed with this ochre (2.5 g) in batch experiments, and a maximum P adsorption capacity, calculated from the Langmuir equation, of between 16 and 21 g P kg−1 was calculated. However, mobilization of heavy metals from Avoca ochre in distilled, surface, and dirty water batch experiments was observed. This mobilization may inhibit ochre’s use in P removal from wastewaters.
Description: peer-reviewed
This is the author's submitted version of an article which subsequently was published in the Journal of Environmental Quality. The definitive version can be found at the journal webiste, DOI: 10.2134/jeq2008.0227
URI: http://hdl.handle.net/11019/174
http://dx.doi.org/10.2134/jeq2008.0227
https://www.soils.org/publications/jeq/abstracts/38/3/1120
ISSN: 0047-2425
Appears in Collections:Environment, Soils & Land Use

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