Mobility of arsenic and its compounds in soil and soil solution: The effect of soil pretreatment and extraction methods

Száková, Jiřina; Tlustoš, Pavel; Goessler, Walter; Frkova, Zuzana; Najmanová, Jana

doi:10.1016/j.jhazmat.2009.07.143

Cited by 41 publications

(13 citation statements)

References 49 publications

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“…Fresh soil was used for As species extraction, as is generally recommended. 19 As(V) and As(III) speciation in paddy soil were assessed by 1 M orthophosphoric acid and 0.5 M ascorbic acid via microwaveassisted extraction. 20 After microwave digestion, the suspensions were centrifuged at 5000g for 5 min and then filtered through 0.45-μm filters.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Arsenic Speciation and Volatilization from Flooded Paddy Soils Amended with Different Organic Matters

Huang

Jia

Sun

et al. 2012

Environ. Sci. Technol.

154

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Arsenic (As) methylation and volatilization in soil can be increased after organic matter (OM) amendment, though the factors influencing this are poorly understood. Herein we investigate how amended OM influences As speciation as well as how it alters microbial processes in soil and soil solution during As volatilization. Microcosm experiments were conducted on predried and fresh As contaminated paddy soils to investigate microbial mediated As speciation and volatilization under different OM amendment conditions. These experiments indicated that the microbes attached to OM did not significantly influence As volatilization. The arsine flux from the treatment amended with 10% clover (cloveramended treatment, CT) and dried distillers grain (DDG) (DDG-amended treatment, DT2) were significantly higher than the control. Trimethylarsine (TMAs) was the dominant species in arsine derived from CT, whereas the primary arsine species from DT2 was TMAs and arsine (AsH 3 ), followed by monomethylarsine (MeAsH 2 ). The predominant As species in the soil solutions of CT and DT2 were dimethylarsinic acid (DMAA) and As(V), respectively. OM addition increased the activities of arseniteoxidizing bacteria (harboring aroA-like genes), though they did not increase or even decrease the abundance of arsenite oxidizers. In contrast, the abundance of arsenate reducers (carrying the arsC gene) was increased by OM amendment; however, significant enhancement of activity of arsenate reducers was observed only in CT. Our results demonstrate that OM addition significantly increased As methylation and volatilization from the investigated paddy soil. The physiologically active bacteria capable of oxidization, reduction, and methylation of As coexisted and mediated the As speciation in soil and soil solution.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Arsenic Speciation and Volatilization from Flooded Paddy Soils Amended with Different Organic Matters

Huang

Jia

Sun

et al. 2012

Environ. Sci. Technol.

154

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“…Analyses of the Cd, Cu, Pb, and Zn total concentration in the soil were determined according to Száková et al (2009). The certified reference material (RM) 7003 Silty Clay Loam was used for quality assurance of the results.…”

Section: Methodsmentioning

confidence: 99%

Biochar application to metal-contaminated soil: Evaluating of Cd, Cu, Pb and Zn sorption behavior using single- and multi-element sorption experiment

Trakal¹,

Komárek²,

Száková³

et al. 2011

Plant Soil Environ.

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The aim of this study was to evaluate metals (Cd, Cu, Pb and Zn) sorption behavior after biochar application into a metal-contaminated soil. Additionally, two different types of biochar originated from the same organic material (contaminated and uncontaminated) at different application rates (1% and 2% w/w) were evaluated as a novelty of the experiment. Batch sorption/desorption experiments were established to compare the sorption behavior of metals originating from single-and multi-element solutions. Zinc as one of the main contaminants in the studied soil was easily desorbed in the presence of Cu, Pb and to a lesser extent by Cd. This desorption was reduced after biochar application. The obtained results proved the different sorption behavior of metals in the single-metal solution compared to the multi-metal ones due to competition effect. Moreover, during multi-element sorption, Zn was significantly desorbed. The applied biochar enhanced Cu and Pb sorption and no changes were observed when contaminated and uncontaminated biochar was used. Furthermore, the application rate (1% and 2% w/w) had no effect as well. In summary, it is needed to point out that the applied rates of biochars were insufficient for metal immobilization in such contaminated soils.

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“…Samples for soil CEC were prepared in suspension 1:50 (w/v) ratio of soil and 0.1 mol/L BaCl 2 . The total concentration of Cd, Pb, and Zn in the soils was determined in the digests, and obtained by decomposition procedure (Száková et al 2009). A certified reference material RM 7003 Silty Clay Loam was used for quality assurance of the results.…”

Section: Methodsmentioning

confidence: 99%

Dolomite limestone application as a chemical immobilization of metal-contaminated soil

Trakal¹,

Neuberg²,

Tlustoš³

et al. 2011

PLANT SOIL ENVIRON

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In this experiment we proved an effect of dolomite limestone on chemical immobilization in soil contaminated by trace metals, namely Cd, Pb, and Zn. Primary, we set up lysimeter pot experiment to measure soil leaching without vegetation. Willow clone (S. × smithiana Willd) was cultivated in the second lysimeter pot as a new approach to monitor Pb, Cd and Zn leaching, which was affected by soil liming (used in 1% rate). At the time of both harvests, aboveground biomass increased significantly at the amended variant. After the second harvest aboveground biomass production increased by 80% in comparison with the first one, Cd and Zn concentration in biomass decreased 2-fold and 3-fold, respectively. Dolomite limestone as a process of liming: (i) restricted metals leaching from the soil substrate; (ii) reduced metal uptake by willow; and (iii) increased biomass production of willow. Liming also alleviated the plant stress imposed by risk elements resulting in better plant growth and lower levels of stress markers (total nitrogen content and the main amino acid metabolism parameters in the willow leaves) yet through different mechanisms.

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Mobility of arsenic and its compounds in soil and soil solution: The effect of soil pretreatment and extraction methods

Cited by 41 publications

References 49 publications

Arsenic Speciation and Volatilization from Flooded Paddy Soils Amended with Different Organic Matters

Arsenic Speciation and Volatilization from Flooded Paddy Soils Amended with Different Organic Matters

Biochar application to metal-contaminated soil: Evaluating of Cd, Cu, Pb and Zn sorption behavior using single- and multi-element sorption experiment

Dolomite limestone application as a chemical immobilization of metal-contaminated soil

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