Fractional distribution and risk assessment of heavy metal contaminated soil in vicinity of a lead/zinc mine

Huang, Shunhong

doi:10.1016/s1003-6326(14)63473-7

Cited by 32 publications

(8 citation statements)

References 18 publications

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“…As one of the most widely applied extraction procedures for investigation of metal speciation, the European Community Bureau of Reference (BCR) sequential extraction procedures were adopted in the present study to investigate the chemical speciation of heavy metals [31,32]. Generally, heavy metals speciation can be divided into four different fractions such as exchangeable fraction (F1), carbonate fraction (F2), Fe-Mn oxide fraction (F3) and residual fraction (F4), which were regarded as direct eco-toxic and bioavailable (F1 + F2), potentially bioavailable (F3) and non-toxic (F4), respectively [29].…”

Section: Chemical Speciation Of Heavy Metalsmentioning

confidence: 99%

Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

Xue

et al. 2021

Environmental Pollutants and Bioavailability

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In this study, a 30-days laboratory experiment was implemented to investigate the impact of additive biochar on the stabilization of heavy metals in chicken manure compost. Results showed that after the addition of rice straw-derived biochar, heavy metals were more stabilized except Cu, of which the residual fractions distinctly decreased due to the interaction with organic functional groups from biochar. Given the bioavailability of heavy metals, the biochar addition at a 10% proportion decreased the concentration of CaCl2-extractable Cr, Zn, Ni, and Cd. Besides, CaCl2-extractable As did not differ significantly between treatments with and without biochar addition. Furthermore, the CaCl2-extractable Cu was higher than the control, in agreement with the observed changes in speciation. Environment pollution assessment by integrating potential ecological risk assessment explicated the chicken manure compost reached avery high-risk pollution level, and decreased with biochar addition. Therein, Cd was the dominant pollutant with very high potential risk.

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Section: Chemical Speciation Of Heavy Metalsmentioning

confidence: 99%

Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

Xue

et al. 2021

Environmental Pollutants and Bioavailability

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“…Zn acetate was then added separately as dry salt at a rate of 2000 mg HM kg -1 . High pollution levels are found in soils near enterprises that mine and process non-ferrous metals (Iavazzo et al, 2012;Huang, 2014;Minkina et al, 2018). It should be noted the soils such as Chernozem can retain their properties and functions even under a very high contamination level.…”

Section: Experiments Designmentioning

confidence: 99%

Soil physical and chemical properties changes after zinc contamination

Bauer

Minkina

Пинский

et al. 2019

BioComm

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The aim of this work was to study the effect of a high rate of Zn on the chemical bond forms of metal in soil and on the physical properties and organic matter of Haplic Chernozem under model experiment conditions. The metal sequential extraction procedure used in this study was the classical five-step method proposed by Tessier et al. (1979). The particle size distribution was determined by the pipette method (using the pyrophosphate procedure of soil preparation) (GOST 12536-79). The microaggregate distribution was determined in the same way as the particle size distribution analysis above, except that there was no chemical dispersant (sodium pyrophosphate) applied (only mechanical agitation with water) (GOST 12536-79; Vadyunina and Korchagina, 1973). The qualitative composition of organic matter was determined using the Tyurin procedure modified by Ponomareva and Plotnikova (Vorob'eva, 2006). Contamination of Haplic Chernozem with Zn acetates at high rates of 2000 mg/kg affected the physical and chemical properties of the soil. A significant increase in the first two soil fractions least strongly bound to the soil was observed in contaminated soils. Silicates and Fe-Mn oxides made the largest contribution to the Zn adsorption and retention. The content of organo-mineral particles in colloidal size increased, which resulted in an increase of the clay fraction content up to 4.5 % compared to the control. The qualitative composition of organic matter changed: the contents of free and sesquioxide-bound humic acids and free fulvic acids increased. Studies of soil physical properties and organic matter quality changes and chemical bond forms of Zn in soil are needed to better understand metal behaviors in the environment and implement repair strategies in different polluted soils.

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“…Mining and smelting operations are important causes of heavy metal contamination in the environment due to activities such as mineral excavation, ore transportation, smelting and refining [1]. Wastewater, waste gas and solid waste generated in the process of mining and smelting activities will lead to the release and migration of heavy metals thus cause heavy metals pollution of soil near the mining area [2].…”

Section: Introductionmentioning

confidence: 99%

Spatial Distribution of Bioavailability of Soil Heavy Metals in a Lead-zinc Mining Area

Huang¹,

Yuan²,

Li³

et al. 2017

dteees

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Abstract. The soil around a lead-zinc mining area was taken as the research object. The available concentrations of Cd , Pb, As in soil of four regions were investigated. Then geostatistics and multistatistics were applied to analyze the distribution characteristics of available heavy metals. The results indicated that the average concentrations of available Cd, Pb and As were 42.02, 59.31, 11.16 mg·kg -1 , respectively. The average bioavailability coefficients of Cd, Pb, As were 15.75%, 4.18%, 4.93%, respectively. The contaminated degree of Cd in soil was the most serious. The results of spatial analysis obviously indicated that the distribution of Cd, Pb, As presented a strong spatial correlation and homogeneity. And the heavy polluted spots were concentrated in the agricultural areas and garbage dump.

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Fractional distribution and risk assessment of heavy metal contaminated soil in vicinity of a lead/zinc mine

Cited by 32 publications

References 18 publications

Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

Soil physical and chemical properties changes after zinc contamination

Spatial Distribution of Bioavailability of Soil Heavy Metals in a Lead-zinc Mining Area

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