Adsorption of zinc and copper ions on calcite and aragonite and its influence on the transformation of aragonite to calcite.

Kitano, Yasushi; Kanamori, Nobuko; Yoshioka, Sayoko

doi:10.2343/geochemj.10.175

Cited by 57 publications

(25 citation statements)

References 9 publications

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“…Cr, Cu, Pb and Zn) but particularly in elements like Zn, and to a lesser extent Cu, which have a higher tendency to sorb onto calcite. The interaction of divalent metals with calcite has been extensively investigated (Crockett and Winchester, 1966;Kitano et al, 1976;McBride, 1979McBride, , 1980Morse, 1982, 1983;Kornicker et al, 1985;Davis et al, 1987, Zachara et al, 1988Tesoriero and Pankow, 1996;Parkman et al, 1998). As a result, several mechanisms have been proposed to explain the retention of these elements by calcite surfaces, i.e.…”

Section: Description and Interpretation Of Resultsmentioning

confidence: 99%

Geochemical fingerprints and controls in the sediments of an urban river: River Manzanares, Madrid (Spain)

Miguel¹,

Charlesworth

Ordóñez

et al. 2005

Science of The Total Environment

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The geochemical fingerprint of sediment retrieved from the banks of the River Manzanares as it passes through the City of Madrid is presented here. The river collects the effluent water from several Waste Water Treatment (WWT) plants in and around the city, such that, at low flows, up to 60% of the flow has been treated. A total of 18 bank-sediment cores were collected along the course of the river, down to its confluence with the Jarama river, to the south-east of Madrid. Trace and major elements in each sample were extracted following a double protocol: (a) "Total" digestion with HN0 3 , HC10 4 and HF; (b) "Weak" digestion with sodium acetate buffered to pH=5 with acetic acid, under constant stirring. The digests thus obtained were subsequently analysed by ICP-AES, except for Hg which was extracted with aqua regia and sodium chloride-hydroxylamine sulfate, and analysed by Cold Vapour-AAS. X-ray diffraction was additionally employed to determine the mineralogical composition of the samples. Uni-and multivariate analyses of the chemical data reveal the influence of Madrid on the geochemistry of Manzanares' sediments, clearly manifested by a marked increase in the concentration of typically "urban" elements Ag, Cr, Cu, Pb and Zn, downstream of the intersection of the river with the city's perimeter. The highest concentrations of these elements appear to be associated with illegal or accidental dumping of waste materials, and with the uncontrolled incorporation of untreated urban runoff to the river. The natural matrix of the sediment is characterised by fairly constant concentrations of Ce, La and Y, whereas changes in the lithology intersected by the river cause corresponding variations in Ca-Mg and Al-Na contents. In the final stretch of the river, the presence of carbonate materials seems to exert a strong geochemical control on the amount of Zn and, to a lesser extent, Cu immobilised in the sediments. This fact suggests that a variable but significant proportion of both elements may be susceptible to reincorporation in the aqueous phase under realistic environmental conditions.

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Section: Description and Interpretation Of Resultsmentioning

confidence: 99%

Geochemical fingerprints and controls in the sediments of an urban river: River Manzanares, Madrid (Spain)

Miguel¹,

Charlesworth

Ordóñez

et al. 2005

Science of The Total Environment

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“…Although many sorption studies have been done with hydrous metal oxides and clay minerals, there have been relatively few experimental studies on the sorption of trace metals on calcite (HEYDEMANN, 1959;MCBRIDE, 1979MCBRIDE, , 1980JURINAK and BAUER, 1956;KITANO et al, 1976;FRANKLIN andMORSE, 1982, 1983;KORNICKER et al, 1985). Most of the studies on calcite show remarkable agreement as regards observations on the kinetics of the sorption processes: an initial rapid uptake of the trace metal followed by a period of relatively slow removal from solution.…”

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confidence: 95%

Sorption of trace metals on calcite: Applicability of the surface precipitation model

Comans

Middelburg

1987

Geochimica et Cosmochimica Acta

126

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Abstract-Published sorption isotherm data of Cd'+, Mt?, Zn*+, and Co*+ on calcite are adequately described by the surface precipitation model which was originally developed by FARLEY ef al. (1985) for the sorption of cations on metal oxides. In addition to monolayer adsorption, the model accounts for the formation of a surface phase with a composition that is described by a solid solution having as end members the sorbent calcium carbonate mineral and a pure carbonate precipitate of the sorbing trace metal. The model thus specifies a continuum between adsorption and precipitation. This feature is supported in the literature by observations on the reaction kinetics and the amount of surface coverage during trace metal sorption on calcite. The apparent adsorption constants of these trace metals, as derived from the model, can be ranked according to the degree to which their ionic radii match the ionic radius of Ca2'.

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“…It seems that the calcite is the most important element that affects the adsorption of copper on sediments. Thus, the copper ions are captured by calcite calcium carbonates during the adsorption experiments [25]. Besides, these results indicate that the sorption process can be considered very fast because of the largest amount of copper attached to sorbent within the first 30 min of adsorption.…”

Section: B Batch Adsorption Studymentioning

confidence: 65%

Experimental Study on the Valorization of Dredged Sediment from Reservoirs in Tunisia as Soil Amendment Regulating Metal Uptake by Crops

Mtibaa¹,

Belkhamsa²,

Irie³

et al. 2016

IJESD

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Abstract-Sediment deposited on the bottom of water reservoirs is known as clayey waste which causes a big problem in the sense of sustainability of surface water resources in Tunisia. Every year, the water storage capacities of reservoirs are decreased by more than 1%. To cope with this situation, Tunisian government has adopted a national strategy for water and soil conservation since 1956. Nevertheless, the sedimentation rate is still high because this strategy is limited on the implementation of soil conservation measures such as terraces and hill lakes in some watersheds. Dredging, conventional but most effective countermeasure against sedimentation, is now required to recover the storage capacity of reservoirs. However, such countermeasure is not carried out in Tunisia because of its high cost. We have previously suggested to commercially valorize the sediment in order to cover partially the financial burden of the dredging activity. In this paper, we studied on the potential of the use of sediment as soil amendment. Sediment samples were extracted from different reservoirs in order to evaluate their ability to adsorb heavy metals and regulate the metals uptake by crops. Two methods have been carried out: a batch adsorption study and a semi field test. Results of this study show that the adsorption capacity is dependent on the mineralogical composition and the organic matter content of sediments. Metals are adsorbed on clay particles and carbonates containing in sediments, which decrease its mobility and accumulation in plants. The possibility of sediment valorization as soil amendment or adsorbent material is confirmed.

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Adsorption of zinc and copper ions on calcite and aragonite and its influence on the transformation of aragonite to calcite.

Cited by 57 publications

References 9 publications

Geochemical fingerprints and controls in the sediments of an urban river: River Manzanares, Madrid (Spain)

Geochemical fingerprints and controls in the sediments of an urban river: River Manzanares, Madrid (Spain)

Sorption of trace metals on calcite: Applicability of the surface precipitation model

Experimental Study on the Valorization of Dredged Sediment from Reservoirs in Tunisia as Soil Amendment Regulating Metal Uptake by Crops

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