Arsenic, selenium, boron, lead, cadmium, copper, and zinc in naturally contaminated rocks: A review of their sources, modes of enrichment, mechanisms of release, and mitigation strategies

Tabelin, Carlito Baltazar; Igarashi, Toshifumi; Villacorte-Tabelin, Mylah; Opiso, Einstine M.; Ito, Mayumi; Hiroyoshi, Naoki

doi:10.1016/j.scitotenv.2018.07.103

Cited by 349 publications

(108 citation statements)

References 359 publications

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“…The implications of our study are relevant because they could reveal specific metal-mineral associations and dissipate doubts about metal transport and storage in AMD-affected soils and sediments. The relevance of our results can also expand to other environments where amorphous Al-Fe phases play an important role in metal mobility, such as naturally contaminated rocks, aquifers and soils [23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 59%

Comparing Schwertmannite and Hydrobasaluminite Dissolution in Ammonium Oxalate (pH 3.0): Implications for Metal Speciation Studies by Sequential Extraction

España

Reyes

2019

Minerals

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The “poorly crystalline iron oxy-hydroxides” are one of the most reactive and environmentally important fractions in soils and sediments due to the association of many toxic elements associated with these minerals. The metal content of this fraction in sequential extraction procedures is usually evaluated by dissolution in ammonium oxalate ([NH4]2C2O4·H2O) at pH 3.0 and 25 ᵒC [1–12]. Such chemical treatment, however, may also dissolve other mineral phases of comparable reactivity, which can lead to wrong interpretations of mineral carriers for specific metals. In this study, we compare the dissolution kinetics of schwertmannite and hydrobasaluminite, two minerals of comparable crystallinity and reactivity that play a major role in the mobility of many trace metals in waters and sediments affected by acid mine drainage (AMD). We first synthesized these two minerals in the laboratory by partial neutralization of two different metal-rich mine waters, and then we applied the standard protocol of ammonium oxalate dissolution to different specimens; the solutions were periodically sampled at intervals of 2, 5, 10, 15, 30 and 60 min to compare (i) the kinetics of mineral dissolution, and (ii) the metals released during dissolution of these two minerals. The results indicate a very similar kinetics of mineral dissolution, though hydrobasaluminite exhibited a faster rate. Some toxic elements such as As, Cr or V were clearly bonded to schwertmannite, while many others such as Cu, Zn, Si, Co, Ni and Y were clearly linked to hydrobasaluminite. These results suggest that studies linking the mobility of many elements with the Fe cycle in AMD-affected soils and sediments could be inaccurate, since these elements could actually be associated with Al minerals of poor crystallinity. The step of ammonium oxalate dissolution in sequential extraction studies should be best described with a more general term such as “low-crystallinity oxy-hydroxides”.

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Section: Introductionmentioning

confidence: 59%

Comparing Schwertmannite and Hydrobasaluminite Dissolution in Ammonium Oxalate (pH 3.0): Implications for Metal Speciation Studies by Sequential Extraction

España

Reyes

2019

Minerals

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“…Explosive population growth and its associated economic activities such as massive construction projects to modernize and improve communication, transportation, and agricultural sectors have in recent years led to high demands for metals [1][2][3][4]. To keep up with demands, mining and metals production have also increased at unprecedented levels.…”

Section: Introductionmentioning

confidence: 99%

“…The mineralogical composition of ZPLRs was determined by XRD (MultiFlex, Rigaku Corporation, Tokyo, Japan) and crystalline minerals were identified using a full package of the Crystallography Open Database (COD) and MATCH 3.4. The crystalline Pb and Zn minerals in ZPLRs that were detected included anglesite (PbSO 4 ), cerussite (PbCO 3 ), esperite (PbCa 2 Zn 3 (SiO 4 ) 3 ), and zinkosite (ZnSO 4 ), as illustrated in Figure 2. Other minerals detected in the samples are quartz (SiO 2 ), gypsum (CaSO 4 ·2H 2 O), hematite (Fe 2 O 3 ), and goethite (FeOOH).…”

Section: Introductionmentioning

confidence: 99%

“…The following are available online at http://www.mdpi.com/2075-4701/10/4/531/s1,Figure S1: log-log activity of Pb 2+ and Cl − at 25 • C, 1.013 bars, and CO3 2− = 10 −5 M for (a) pH 4, (b) pH 2, and (c) pH 1 for 0.01, 0.05, and 0.1 M HCl (created using the Geochemist's Workbench ® with the MINTEQ database).FigureS2: XRD pattern of (a) ZPLRs before being treated and (b) the residues obtained after treating ZPLRs by the concurrent dissolution-cementation technique in the solution composed of 3 M NaCl and 0.05 M HCl. Author Contributions: Conceptualization, M.S.…”

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confidence: 99%

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Recovery of Lead and Zinc from Zinc Plant Leach Residues by Concurrent Dissolution-Cementation Using Zero-Valent Aluminum in Chloride Medium

Silwamba

Ito

Hiroyoshi

et al. 2020

Metals

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Zinc plant leach residues (ZPLRs) contain significant amounts of metal compounds of lead (Pb), zinc (Zn), iron (Fe), etc., hence, they are considered as a secondary source of metals. On the other hand, ZPLRs are regarded as hazardous materials because they contain heavy metals that pollute the environment. Resources and environmental concerns of ZPLRs were addressed in this study by removing/recovering Pb and Zn using a concurrent dissolution and cementation technique. To cement the dissolved Pb and Zn in leaching pulp, zero-valent aluminum (ZVAl) was added during ZPLRs leaching in the hydrochloric (HCl)–sodium chloride (NaCl) solution. The resulting cemented metals were agglomerated and separated by sieving. Lead removal increased with increasing both NaCl and HCl concentrations. However, when ZVAl was added, significant Pb removal was achieved at a low concentration. Zinc was not cemented out of the pulp using ZVAl and its recovery from ZPLRs was dependent on the HCl concentration only. By applying a concurrent dissolution and cementation technique, both Pb and Zn were removed using a low concentration of NaCl, and most importantly Pb—the most toxic metal in ZPLRs—was captured and separated before the solid-liquid separation, hence, eliminating the need for extensive washing of the generated residues to remove the inherent residual solution.

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“…Groundwater is susceptible to pollutants and its contamination can cause it to become unsafe and unfit for human use. Contamination might be due to natural causes, for example arsenic (As) or nitrate (NO3 -)-containing rocks (Menció et al, 2016;Tabelin et al, 2018) or more frequently by anthropic activities. Hence, a large variety of contaminants can be found in groundwater: aromatic compounds and chlorinated hydrocarbons (Logeshwaran et al, 2018), inorganic metallic compounds (Galitskaya et al, 2017;Luu et al, 2009), and nutrients (Chen et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

<em>In situ</em> Groundwater Treatment with Bioelectrochemical Systems (BES): Critical Review and Future Perspectives

Cecconet¹,

Sabba²,

Devecseri³

et al. 2019

Preprint

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Groundwater contamination is an ever-growing environmental issue, that has attracted much and undiminished attention for the past half century. Groundwater contamination originates from anthropogenic (e.g. hydrocarbons), natural compounds (e.g. nitrate and arsenic), or both; to tackle these contaminants different technologies have been tested during the years. Recently, bioelectrochemical systems (BESs) have emerged as a potential treatment for groundwater contamination, with in situ applications reported, that showed promising results. Nitrate and hydrocarbons (toluene, phenanthrene, benzene, BTEX and light PAHs) have been successfully removed, due to the interaction of microbial metabolism with poised electrodes, other than physical migration due to the electric field generated in BES. The selection of proper BESs relies on several factors and problems such as complexity of the groundwater, scale-up and energy requirements that need to be taken into account. Modelling efforts could help predict case scenarios and choose an ideal design and approach to solve these issues. In this review, we critically analyze in situ BES applications for groundwater remediation, focusing in particular on the different setups proposed, and we identify and discuss the existing research gaps in the field.

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Arsenic, selenium, boron, lead, cadmium, copper, and zinc in naturally contaminated rocks: A review of their sources, modes of enrichment, mechanisms of release, and mitigation strategies

Cited by 349 publications

References 359 publications

Comparing Schwertmannite and Hydrobasaluminite Dissolution in Ammonium Oxalate (pH 3.0): Implications for Metal Speciation Studies by Sequential Extraction

Comparing Schwertmannite and Hydrobasaluminite Dissolution in Ammonium Oxalate (pH 3.0): Implications for Metal Speciation Studies by Sequential Extraction

Recovery of Lead and Zinc from Zinc Plant Leach Residues by Concurrent Dissolution-Cementation Using Zero-Valent Aluminum in Chloride Medium

<em>In situ</em> Groundwater Treatment with Bioelectrochemical Systems (BES): Critical Review and Future Perspectives

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