The associations of heavy metals with crystalline iron oxides in the polluted soils around the mining areas in Guangdong Province, China

Yin, Hui; Tan, Nianhao; Liu, Chuanping; Wang, Juju; Liang, Xiaoliang; Qu, Mingkai; Feng, Xionghan; Qiu, Guohong; Tan, Wenfeng; Fan, Louzhen

doi:10.1016/j.chemosphere.2016.07.018

Cited by 94 publications

(39 citation statements)

References 55 publications

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“…La polución por metales pesados tiende a generar acidez en los suelos (Sahuquillo et al 2003;Prieto et al 2009), proceso ampliamente confirmado en áreas mineras y sus vecindades, como lo reporta Yin et al (2016) en la provincia de Guandong en China, donde los suelos en cercanías a explotaciones mineras mostraron pH entre 2,4 a 6,7.…”

Section: Resultados Y Discusiónunclassified

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Contaminación de suelos agrícolas por metales pesados, zona minera El Alacrán, Colombia

Martínez

Gonzalez

2017

Temas Agrarios

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En la zona minera El Alacrán, municipio de Puerto Libertador, departamento de Córdoba, Colombia, la degradación de los recursos naturales como consecuencia de la explotación minera informal de oro es evidente; sin embargo, en la zona el nivel de conocimiento de la problemática relacionada con la explotación y contaminación de metales pesados en suelos agrícolas es deficiente considerando los graves impactos ambientales que viene ocasionando. El objetivo del estudio fue evaluar la contaminación por mercurio, hierro y cobre en suelos agrícolas, y su relación con algunas características químicas del suelo mediante un análisis de tipo multivariado. El área de estudio comprendió un lote de 1,4 ha ubicado a cinco kilómetros aguas abajo del vertimiento de la mina El Alacrán sobre la quebrada Valdéz. Se extrajeron 25 muestras de suelo distribuidas entre zonas eriales y cultivadas, con una densidad de 17,8 muestras/ha. Los resultados mostraron concentraciones excesivas para hierro y cobre totales, y bajas para el mercurio, indicando contaminación por cobre en los suelos agrícolas con valores de TCu que superaron los máximos permisibles en todas las normas internacionales; a diferencia, los valores de mercurio no indicaron polución. Las propiedades químicas de pH, MO y CICe controlan las concentraciones de los metales Cu y Fe en el suelo, tanto para las formas totales como para las disponibles. No se econcontraron evidencias estadísticas que permitieran identificar diferentes poblaciones de suelos en relación a las propiedades químicas y metales pesados evaluados.

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Section: Resultados Y Discusiónunclassified

“…, y para suelos de residuos mineros entre 257 a 438 g kg -1 (Yin et al 2016); sin embargo, los altos valores medios hallados en esta investigación de 67971 mg kg -1 , se relacionan con lo reportado por Belmonte et al (2010) en suelos agrícolas cercanos a una mina con ricos yacimientos de hierro en el sureste de España.…”

Section: Resultados Y Discusiónunclassified

Contaminación de suelos agrícolas por metales pesados, zona minera El Alacrán, Colombia

Martínez

Gonzalez

2017

Temas Agrarios

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“…In addition, biochars are rich in phosphates (Zornoza et al, 2016), which may have contributed to immobilization of metals by precipitation as metallic phosphates (Cao et al, 2011;Ahmad et al, 2014;Rajapaksha et al, 2015). In fact, PM-derived biochars have higher content of phosphorus and phosphates than the other biochar types (Table II; Zornoza et al, 2016), which may be responsible for the retention of Pb in the residual fraction, because this fraction is higher with PM than with CR, MSW or MaW. So these data seem to suggest that phosphates are a key mechanism in the immobilization of Pb.…”

Section: Discussionmentioning

confidence: 99%

“…The retention of metals by Fe and Mn oxides was also an effective mechanism to immobilize Cd, Pb and Zn. Yin et al (2016) reported that, independently of soil types and land uses, Cd, Pb and Zn had high affinity for Mn and Fe oxides. The high correlation between metals retained by oxides and pH and IC content suggests that the increase in pH is also the main factor responsible for this mechanism.…”

Section: Discussionmentioning

confidence: 99%

Creation of Technosols to Decrease Metal Availability in Pyritic Tailings with Addition of Biochar and Marble Waste

et al. 2017

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Creation of Technosols with the use of different materials is a sustainable strategy to reclaim mine tailings and reduce metal mobility. For this purpose, a short‐term incubation experiment was designed with biochars derived from pig manure, crop residues and municipal solid waste added to tailings alone or in combination with marble waste. We aimed to assess the efficiency of the different amendments to decrease Cd, Pb and Zn availability in the Technosols and the fractions where metals were retained. Results showed that all amendments reduced metal mobility, directly related to increases in pH. Those materials with higher content of carbonates were more effective to immobilize metals (~99%). Municipal solid waste was highly effective to decrease metal mobility owing to the higher carbonate content, but addition of marble waste was needed to enhance metal immobilization with pig manure and crop residue. Decreases in Cd mobility were related to retention by the carbonate, Mn/Fe oxides and oxidizable (organic compounds) fractions. Decreases in Pb mobility were related to retention in the Mn/Fe oxides and residual fractions, while decreases in Zn mobility were related to retention in Mn/Fe oxides and oxidizable fractions. Association of Zn and Pb with the oxidizable fraction was also related to the recalcitrance of the organic compounds and so dependent on biochar type. Scanning electron microscopy coupled with energy dispersive X‐ray showed that biochar showed great affinity to interact with iron oxides, calcium sulfates and phyllosilicates. Copyright © 2017 John Wiley & Sons, Ltd.

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“…As explained earlier, the mobility of an element largely depends on its distribution within geochemical fractions. Generally, it increases as follows: exchangeable > bound to carbonates > bound to Fe and Mg oxides > bound to organic matter >> bound to crystalline stable mineral phases (residual fraction) [35]. In soils, metal cations should be expected in two different pools, where hydrated metal cations may be found as "free" ions, or bound to dissolved organic matter.…”

Section: Sequential Extraction Of CD Cu and Pb From Cam Pha Rice Padmentioning

confidence: 99%

Effect of Cadmium, Copper and Lead on the Growth of Rice in the Coal Mining Region of Quang Ninh, Cam-Pha (Vietnam)

et al. 2018

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The goal of this study was to quantify the mobility and partitioning of trace elements originating from mine waste rocks derived from open pit coal extraction activities. The results showed that native rice plants were adapted to growing in metal contaminated soils, posing a severe health risk to local population. Sequential extraction procedures and bulk soil chemical analyses both suggest enrichment of Cd, Pb and Cu in rice paddy soils. Lead was shown to be evenly partitioned among all mineral and organic phases. Copper was associated with carbonates and organic matter. Smaller fractions of Pb and Cu were also bound to Fe and Mn oxides. Only 25% of Cd, 9% of Pb and 48% of Cu were associated with the exchangeable fraction, considered mobile and thus bioavailable for plant uptake. Effects of Cd, Cu and Pb on local Cam Pha Nep cai Hoa vang, and control Asia Italian rice, showed marked differences in growth. The local Vietnamese variety grew close to control values, even upon exposure to higher trace metal concentrations. Whereas the development of the control rice species was significantly affected by increasing trace metal concentrations. This result suggests toxic trace elements accumulation in the edible parts of crops.Waste rock material derived from open pit coal mining contains significant concentrations of reduced sulfides. These include pyrite (FeS 2 ), chalcopyrite (CuFeS 2 ) and other metal sulfides, including covellite (CuS), chalcocite (Cu 2 S) and galena (PbS). The Cd containing sulfide, greenockite (CdS), has been found to be frequently associated with sphalerites and wurtzites [(Zn,Fe)S] [11]. The chemical weathering of these minerals enhances the solubility, mobilization and bioavailability of trace metals [11]. In contaminated areas, these elements may be transported by colloidal or suspended particulates present in water used to irrigate agricultural land [12].Trace elements in soils have detrimental effects on the growth of staple crops (e.g., rice, barley, garlic, wheat, maize) [13][14][15][16], and can accumulate in their edible parts posing a serious health risk to humans [8,[17][18][19]. Cadmium, Cu and Pb have been identified as having adverse effects on rice (Oryza sativa L.) and wheat (Triticum aestivum L.) growth [16,17,[20][21][22]. In addition, toxic metal tolerance in crop varieties has been shown in rice, sunflower, wheat and leguminous species, leading to an increment in metal uptake and to their concentration in edible plant parts, posing a severe health risk [8,23,24].In this study, a first approach quantifies metal fractionation and mobility in mine waste rock and rice paddy soil samples, from the open-pit coal mining region of Quang Ninh, (Vietnam). A second part of the study focuses on determining the effect of mobile toxic elements (e.g., Cd, Cu, Pb) on the growth of native and control rice plant varieties.

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The associations of heavy metals with crystalline iron oxides in the polluted soils around the mining areas in Guangdong Province, China

Cited by 94 publications

References 55 publications

Contaminación de suelos agrícolas por metales pesados, zona minera El Alacrán, Colombia

Contaminación de suelos agrícolas por metales pesados, zona minera El Alacrán, Colombia

Creation of Technosols to Decrease Metal Availability in Pyritic Tailings with Addition of Biochar and Marble Waste

Effect of Cadmium, Copper and Lead on the Growth of Rice in the Coal Mining Region of Quang Ninh, Cam-Pha (Vietnam)

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