Arsenic incorporation in natural calcite lattice: Evidence from electron spin echo spectroscopy

Benedetto, Francesco Di; Costagliola, Pilario; Benvenuti, Marco; Lattanzi, Pierfranco; Romanelli, Marco; Tanelli, Giuseppe

doi:10.1016/j.epsl.2006.03.047

Cited by 82 publications

(61 citation statements)

References 31 publications

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“…Although natural carbonates usually do not contain significant amounts of As, it has been demonstrated that As may be trapped also by natural calcite. 52 3.3 Arsenic speciation studies 3.3.1 Preservation of arsenic speciation. The preservation of As species in water samples is an indispensable method to avoid changes during storage.…”

Section: Discussionmentioning

confidence: 99%

Arsenic contamination and speciation in surrounding waters of three old cinnabar mines

et al. 2012

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The impact of arsenic pollution in waters from the surroundings of three abandoned Hg mines in Northern Spain, as well as reaching the Caudal River, was evaluated. For assessing the factors controlling arsenic release, an extensive study based on the physicochemical characterization and multivariate statistical analysis of waters upstream and downstream each mine site was performed. Waters downstream of the La Soterraña mine present the highest arsenic concentrations, up to 38.8 mg L À1 , coming mainly from the solubilisation of calcium, magnesium and strontium arsenates at a pH close to neutral. Although arsenic concentrations downstream of La Peña are markedly lower, these values remain too high, indicating that the encapsulation carried out in this spoil heap is insufficient. In addition, the high water flow in this point involves an extremely high input of arsenic to the surroundings (0.3 g s À1 ). Waters close to tailings from Los Rueldos suffer from acid mine drainage, provoking an important solubilisation of arsenic and heavy metals, a situation which is rapidly softened with distance. The study of arsenic speciation reveals the omnipresence of As(V) in waters from the three mines, whereas in La Peña low amounts of As(III) were also detected. Different preservation methods for As speciation were compared, such as the addition of HCl, EDTA and the storage of samples without any additive, and no alteration of samples in any case up to nine months after the collection was observed. A study of seasonal variations of As and the main parameters affecting its concentration and speciation was completed throughout a year, showing no remarkable dependency with rainfall for any studied variable.

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Section: Discussionmentioning

confidence: 99%

Arsenic contamination and speciation in surrounding waters of three old cinnabar mines

et al. 2012

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“…Arsenic is frequently reported in thermal springs, although its occurrence in travertines is rarely investigated (Pentecost 2005). Arsenic, however, is an important component in travertine deposits of Western Turkey (Dogan and Dogan 2007), Greece (Winkel et al 2013) and Italy (Dessau 1968;Di Benedetto et al 2006;Costagliola et al 2013). The association between travertine and As in southern Tuscany and northern Latium is well documented, and up to hundreds mg kg −1 of As is found in fossil travertine and calcareous tufa deposits (Costagliola et al 2010(Costagliola et al , 2013Di Benedetto et al 2011).…”

Section: Mineralogy Of Castelnuovo Dell'abate Travertine Depositmentioning

confidence: 99%

Investigating fossil hydrothermal systems by means of fluid inclusions and stable isotopes in banded travertine: an example from Castelnuovo dell’Abate (southern Tuscany, Italy)

Rimondi

Costagliola

Ruggieri

et al. 2015

Int J Earth Sci (Geol Rundsch)

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“…Furthermore, significant adsorption of As on carbonate mineral phases has been reported (Goldberg & Glaubig, 1988;Roman-Ross et al, 2006). It was demonstrated that arsenate may substitute for CO3 2-in calcite from travertine, suggesting the possibility of As immobilization through carbonate precipitation (Di Benedetto et al, 2006).…”

Section: As(v)-reducing and As(iii)-oxidizing Bacteria Including Chrymentioning

confidence: 99%

Microbially-induced Carbonate Precipitation for Immobilization of Toxic Metals

Kumari

Qian

Pan

et al. 2016

Advances in Applied Microbiology

155

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Arsenic incorporation in natural calcite lattice: Evidence from electron spin echo spectroscopy

Cited by 82 publications

References 31 publications

Arsenic contamination and speciation in surrounding waters of three old cinnabar mines

Arsenic contamination and speciation in surrounding waters of three old cinnabar mines

Investigating fossil hydrothermal systems by means of fluid inclusions and stable isotopes in banded travertine: an example from Castelnuovo dell’Abate (southern Tuscany, Italy)

Microbially-induced Carbonate Precipitation for Immobilization of Toxic Metals

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