Adsorption of Cd, Cu, Ni and Zn in tropical soils under competitive and non-competitive systems

Moreira, Cindy Silva; Alleoni, Luís Reynaldo Ferracciú

doi:10.1590/s0103-90162010000300008

Cited by 44 publications

(24 citation statements)

References 26 publications

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“…In this study, the relatively high proportion between pseudo-total and available Cd can be explained by the absence of an aging process. Although the specific adsorption may be the predominant mechanism of Cd retention in soils (Moreira & Alleoni, 2010), the short time of contact with the soil, as well as the soil acidity (pH around 5.0) may have contributed to the high availability of Cd in this study. Therefore, the availability of metals would be expected to be lower under field conditions with other sources of soil contamination.…”

Section: Resultsmentioning

confidence: 90%

Transfer of cadmium and barium from soil to crops grown in tropical soils

Melo

Silva

Alleoni

2014

Rev. Bras. Ciênc. Solo

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SUMMARYPhytotoxicity and transfer of potentially toxic elements, such as cadmium (Cd) or barium (Ba), depend on the availability of these elements in soils and on the plant species exposed to them. With this study, we aimed to evaluate the effect of Cd and Ba application rates on yields of pea (Pisum sativum L.), sorghum (Sorghum bicolor L.), soybean (Glycine max L.), and maize (Zea mays L.) grown under greenhouse conditions in an Oxisol and an Entisol with contrasting physical and chemical properties, and to correlate the amount taken up by plants with extractants commonly used in routine soil analysis, along with transfer coefficients (Bioconcentration Factor and Transfer Factor) in different parts of the plants. Plants were harvested at flowering stage and measured for yield and Cd or Ba concentrations in leaves, stems, and roots. The amount of Cd accumulated in the plants was satisfactorily evaluated by both DTPA and Mehlich-3 (M-3). Mehlich-3 did not relate to Ba accumulated in plants, suggesting it should not be used to predict Ba availability. The transfer coefficients were specific to soils and plants and are therefore not recommended for direct use in risk assessment models without taking soil properties and group of plants into account.Index terms: soil pollution, transfer factor, bioconcentration factor. RESUMO: TRANSFERÊNCIA DE CÁDMIO E BÁRIO EM PLANTAS CULTIVADAS EM SOLOS TROPICAIS

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Section: Resultsmentioning

confidence: 90%

Transfer of cadmium and barium from soil to crops grown in tropical soils

Melo

Silva

Alleoni

2014

Rev. Bras. Ciênc. Solo

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“…However, the dissolved Zn contributes most of the total. A number of studies have indicated that the metal competitive sorption would be in the order of Pb>Cu>Zn [15]. But elimination effects of Cd in these three tanks were not very effi cient, which may be due to too low infl uent Cd concentration and close to the detection limit of atomic absorption spectrophotometer.…”

Section: Filler Combinationsmentioning

confidence: 97%

Study of Bioretention System on Heavy-Metal Removal Effect

Zengchao¹,

Li²,

Li³

et al. 2018

Pol. J. Environ. Stud.

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Urban growth and development negatively affect nearby natural water systems. For example, increases in impervious land areas decrease rainfall infi ltration, increase runoff rates and volumes, and decrease runoff travel time. In addition, detrimental water quality changes in stormwater runoff accompany land-use changes that coincide with urbanization [1].In addition, due to human activities, atmospheric deposition, and other factors, a large number of pollutants accumulate and are discharged into the municipal stormwater sewer by stormwater runoff fl ushing, then enter the receiving waterbody [2]. Although low concentrations of some heavy metals such as copper (Cu) and zinc (Zn) are essential to plants, humans, and animals, high heavy metal concentrations are toxic [3]. Lead (Pb), on the other Pol. J. Environ. Stud. Vol. 27, No. 1 (2018), 163-173 Original Research Study of Bioretention System on AbstractBioretention is a typical low-impact development (LID) technology. This work used four different fi ller combinations of bioretention tank pilot test devices. Experiments on infl uence factors and intermittent operation were conducted. A continuous-run experiment was also performed to determine the purifi cation ability of bioretention system on heavy metals. Results showed that the removal effi ciency of heavy metals by fl y ash tank was the most effi cient, with a removal rate reaching 85.57%. The removal effect on highinfl uent concentrations in fi lter was better than that in low-infl uent concentrations. With increased rainfall time intervals (antecedent dry time), heavy-metal removal effi ciency improved. Temperature did not affect the removal effi ciency of heavy metals on the whole based on the long duration of intermittent operation experiments. Moreover, the effl uent heavy-metal concentration presented a descending trend during each simulation rainfall runoff event. During continuous operation test, heavy metals did not reach the exhaustion point in the experimental tanks, while the effl uent concentration increased with increased water volume. According to PLS regression analysis, rainfall time interval was the most important factor affecting Zn removal rate, followed by fi ller characteristics, infl uent volume, and infl uent concentration.

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“…To describe the metal adsorption forms in the soil, physicochemistry models are utilized, and several equations are proposed to fit the equilibrium solution data (MOREIRA; ALLEONI, 2010). Among these models are the Langmuir and Freundlich curves, which are simple and provide consistent information about the prediction of soil pollution (ABAT et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of cadmium and copper in representative soils of Eastern Amazonia, Brazil

Gonçalves¹,

Matos²,

Fernandes³

et al. 2016

SCA

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Studies of heavy metals adsorption in soil play a key role in predicting environmental susceptibility to contamination by toxic elements. The objective of this study was to evaluate cadmium (Cd) and copper (Cu) adsorption in surface and subsurface soil. Samples of six soils: Xanthic Hapludox (XH1 and XH2), Typic Hapludox (TH), Typic Rhodudalf (TR), Typic Fluvaquent (TF), and Amazonian dark earths (ADE) from Eastern Amazonian, Brazil. The soils were selected for chemical, physical and mineralogical characterization and to determine the adsorption by Langmuir and Freundlich isotherms. All soils characterized as kaolinitic, and among them, XH1 and XH2 showed the lowest fertility. The Langmuir and Freundlich isotherms revealed a higher Cu (H curve) than Cd (L curve) adsorption. Parameters of Langmuir and Freundlich isotherms indicate that soils TR, TF and ADE has the greatest capacity and affinity for metal adsorption. Correlation between the curve adsorption parameters and the soil attributes indicates that the pH, CEC, OM and MnO variables had the best influence on metal retention. The Langmuir and Freundlich isotherms satisfactorily described Cu and Cd soil adsorption, where TR, TF and ADE has a lower vulnerability to metal input to the environment. Besides the pH, CEC and OM the MnO had a significant effect on Cu and Cd adsorption in Amazon soils. Key words: Amazonian dark earths. Environmental management. Heavy metals. Isotherm. Soil pollution. ResumoEstudos de adsorção de metais pesados no solo desempenham um papel chave em prever a susceptibilidade à contaminação do ambiente por elementos tóxicos. O objetivo foi avaliar a adsorção de cádmio (Cd) e cobre (Cu) na superfície e subsuperfície de seis solos Amazônicos: Latossolo Amarelo (XH1 e XH2), Latossolo Vermelho (TH), Nitossolo Vermelho (TR), Gleissolo Háplico (TF) e Latossolo AmareloTerra Preta de Índio (ADE) da Amazônia Oriental. Os solos foram selecionados para caracterização química, física, mineralógica e determinação da capacidade máxima de adsorção pelas isotermas de Langmuir e Freundlich. Todos os solos foram caracterizados como cauliníticos, e entre eles, XH1 e XH2 apresentaram menor fertilidade.

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Adsorption of Cd, Cu, Ni and Zn in tropical soils under competitive and non-competitive systems

Cited by 44 publications

References 26 publications

Transfer of cadmium and barium from soil to crops grown in tropical soils

Transfer of cadmium and barium from soil to crops grown in tropical soils

Study of Bioretention System on Heavy-Metal Removal Effect

Adsorption of cadmium and copper in representative soils of Eastern Amazonia, Brazil

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