Speciation and leachability of copper in mine tailings from porphyry copper mining: Influence of particle size

Hansen, Henrik K.; Yianatos, J.; Ottosen, Lisbeth M.

doi:10.1016/j.chemosphere.2005.01.086

Cited by 54 publications

(22 citation statements)

References 19 publications

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“…The significant association between trace metals and the finest grain-size sediment as observed within Bahía Blanca estuarine system has opportunely been reported by different authors (i.e., Zhang et al 2002;Hansen et al 2005), together with the corresponding dilution effect that can be defined by relating the metal levels in total sediments and that in the \63-lm one was explained considering the percentage of finest grain-size particles (63-92.6%) within Bahía Blanca estuary sediments (Gelós et al 2004). A remarkable point was that even the magnitude of Cr and Pb within total sediment and\63-lm fractions were significantly different (p \ 0.01), they both presented clearly similar spatial distribution trends, which allowed to sustain the occurrence of common metal sources (Fig.…”

Section: Discussionmentioning

confidence: 89%

Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

et al. 2009

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Chromium and lead concentrations and distribution have been fully studied within Bahía Blanca estuary inner area, which is strongly influenced by urban and industrial stress. Not only metals dissolved in estuarine water but also those included in sediments and suspended particulate matters (SPM) were measured. In all cases, internationally standardized protocols were applied to metal measurements, including analytical quality check test through analysis of certified reference materials. Total metal contents from surface sediments and SPM were compared with those from a historical database of the area, as well as with values representing the natural geochemical baseline within the system. Results showed that heavy metal pollution is mainly localized in the areas close to both industrial effluents discharge system and urban sewage outfall discharge. Data from sequential extractions indicate that metals from anthropogenic sources (i.e., Pb) are potentially more mobile than those inherited from geological parent material (i.e., Cr). The influences of other potential sources of metals (i.e., streams, runoff) were also considered. SPM was clearly identified as the main carrier of the studied heavy metals within the system, and its significance to metals input into sediments and/or biota was verified. Finally, the normalization of measured metal concentrations against background reference elements (i.e., Al or Fe) has allowed to identify that most of the measured Cr was lithogenic, while a significant percentage of Pb was from anthropogenic origin within Bahía Blanca estuary.

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Section: Discussionmentioning

confidence: 89%

Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

et al. 2009

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“…A harmful effect of mining activities is reflected in the degradation of large areas of land (open pits), disposal of large volumes of solid waste and the occurrence of acid mine drainage [1,2]. This is typical of copper extraction from sulphide ores [3,4]. For instance, in the Aitic Copper Mine in northern Sweden, which is one of the biggest copper mines in Europe, the mass of the extracted copper per ton of ground ore is only 3 kg, whereas the average Cu content in the ore is 0.4%, which is about the world average [5].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the possibility of copper recovery from the flotation tailings by acid leaching

Antonijević

Dimitrijević

Stevanović

et al. 2008

Journal of Hazardous Materials

104

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“…pH 9.2-10.2 for alkaline flotation of sulfide ores; neutral pH reported for porphyry deposit tailings; limited water salinity data. (Smuda, et al, 2008;Liu, et al, 2013;Hansen, et al, 2005) Although differences exist in the composition of these tailings, the ubiquitous presence of phyllosilicate minerals is evident. Among these phyllosilicate minerals, the majority is classified as clay minerals and concentrated in the fines fractions.…”

Section: Size Classificationmentioning

confidence: 99%

Current state of fine mineral tailings treatment: A critical review on theory and practice

Wang

Harbottle

Liu

et al. 2014

Minerals Engineering

330

169

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Highlights Presented facts on escalating generation of fine mineral tailings worldwide.  Overview of coal, alumina, oil sands, and base metals tailings characteristics.  Reviewed theoretical and industrial developments for tailings management.  Determined numerous knowledge gaps between current theories and practices.  Identified opportunities for improvement towards more sustainable practices. Graphical AbstractEvolution of fine mineral tailings treatment objectives.Figures "Flocculated solids" and "Stackable solids" are adopted from Alamgir, et al. (2012), permission pending. The last figure "Reclaimed land" is adopted from Golder Associates (2009), permission pending. AbstractThe mining industry produces fluid fine mineral tailings on the order of millions of tonnes each year, with billions of tonnes already stored globally. This trend is expected to escalate as demand for mineral products continues to grow with increasingly lower grade ores being more commonly exploited by hydrometallurgy. Ubiquitous presence and enrichment of fine solids such as silt and clays in fluid fine mineral tailings prevent efficient solid-liquid separation and timely re-use of valuable process water. Long-term storage of such fluid waste materials not only incurs a huge operating cost, but also creates substantial environmental liabilities of tailings ponds for mining operators. This review broadly examines current theoretical understandings and prevalent industrial practices on treating fine mineral tailings for greater water recovery and reduced environmental footprint of mining operations.

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Speciation and leachability of copper in mine tailings from porphyry copper mining: Influence of particle size

Cited by 54 publications

References 19 publications

Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

Geochemical Control of Heavy Metal Concentrations and Distribution Within Bahia Blanca Estuary (Argentina)

Investigation of the possibility of copper recovery from the flotation tailings by acid leaching

Current state of fine mineral tailings treatment: A critical review on theory and practice

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