Trace Element Solubility in a Multimetal-Contaminated Soil as Affected by Redox Conditions

Hindersmann, Iris; Mansfeldt, Tim

doi:10.1007/s11270-014-2158-8

Cited by 64 publications

(33 citation statements)

References 84 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recently, various efforts have been made to develop innovative technologies for controlled development of different redox conditions that allow identification of major soil biogeochemical processes and their direct and indirect impact on metals (im) mobilization (Yu et al, 2007;Frohne et al, 2011;Hindersmann and Mansfeldt, 2014;Pan et al, 2014). It is well documented that changes from oxic to anoxic conditions could result in reductive dissolution of Fe-and Mn (hydr)oxides, upon which, fixed metals and adsorbed organic carbon might be released to soil solution (Weber et al, 2009;Shaheen et al, 2014a;Frohne et al, 2015;Schuth et al, 2015;Rinklebe et al, 2016c).…”

Section: Introductionmentioning

confidence: 99%

Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization

Antić-Mladenović

Frohne

Kresovic

et al. 2017

Journal of Environmental Management

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization

Antić-Mladenović

Frohne

Kresovic

et al. 2017

Journal of Environmental Management

View full text Add to dashboard Cite

“…It is well known that low soil redox potential (low Eh) promotes As solubilization from soils (Marin et al 1993;Hindersmann and Mansfeldt 2014). Because Fe oxides bind most of the As in soils (Hall et al 1996;Cancès et al 2008), the reductive dissolution of these oxides potentially solubilizes substantial amounts of As.…”

Section: Soils Without Organic Amendmentsmentioning

confidence: 99%

“…Moreover, As(III) adsorbs onto soils more weakly than As(V) under most conditions (Manning and Goldberg 1997). Therefore, As easily solubilizes under water-flooded conditions like paddy soils, through the reductive dissolution of As-bearing Fe oxides and the redox transformation of As(V) to soluble As(III) (Hindersmann and Mansfeldt 2014;Weber et al 2010). Consequently, paddy rice accumulates much more As than upland crops (Williams et al 2007), and rice would be a significant dietary source of As, especially of inorganic As, for the population in Asian countries (Mondal and Polya 2008;Oguri et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of organic amendments on arsenic solubilization in soils during long-term flooded incubation

Suda

Makino

2016

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

Rice consumption is considered an important arsenic source for the population in Asian countries. Previous studies showed increase in arsenic solubility in flooded soils and arsenic uptake by rice plants with the application of organic amendments, while contrasting results were also reported. Here, we comprehensively examined the effect of three types of organic amendments on arsenic solubility during long-term flooded soil incubation. The amendments examined were categorized as (1) plant-based composts, (2) cattle manures, and (3) fermented livestock (swine and poultry) droppings. The dissolved arsenic in all soils with fermented livestock dropping was significantly greater than that in control soils at 10 and 39 days after incubation. The soils with two cattle manures also contained significantly greater amounts of dissolved arsenic than control soils at day 39, while the rest of the amendments did not increase arsenic solubility. At day 80, the amount of dissolved arsenic in all soils became comparable. Tukey's test demonstrated that the relative ratio of dissolved arsenic in soils with fermented livestock droppings to control soils was significantly greater than those with the plant-based composts and cattle manures at days 10 and 39. Furthermore, the solubilizing effect of some organic amendments was mostly explained by promotion of decrease in soil Eh, rather than increase in dissolved organic carbon. Thus, it could be concluded that fermented livestock droppings potentially have a greater risk of solubilizing As than plant-based composts and cattle manures, because of their greater ability for accelerating soil reduction, associated with their higher bio-decomposability.

show abstract

“…Dynamic changes in redox conditions have significant effects on aqueous contaminant concentrations in saturated near-surface environments (Couture et al, 2015;Hindersmann and Mansfeldt, 2014;Parsons et al, 2013;Stewart et al, 2009;Thompson et al, 2006), suggesting that they also play a role in controlling contaminant mobility in subsurface argillaceous formations. Research on how redox phenomena control the long-term mobility of radionuclides in waste repositories has been performed by 32 European research institutes and universities within the ReCosy collaborative project (Duro et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Contaminated soils and waste waters are often found to contain high concentrations of As, Sb, and Cr as well as redox-sensitive nutrients, such as nitrogen (N) and organic carbon (OC) (Casiot et al, 2007;Hindersmann and Mansfeldt, 2014;Lindsay et al, 2011). Heterogeneous contaminant-nutrient mixtures are also prevalent in waste repositories (Bertron et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Speciation dynamics of oxyanion contaminants (As, Sb, Cr) in argillaceous suspensions during oxic-anoxic cycles

Markelova

Couture

Parsons

et al. 2018

Applied Geochemistry

View full text Add to dashboard Cite

A B S T R A C TArgillaceous geological formations are considered promising repositories for waste containing inorganic contaminants. However, the sequestration capacity of an argillaceous natural barrier may change as a result of dynamic environmental conditions, in particular changes in redox state. Here, we imposed redox cycles to argillaceous suspensions amended with a mixture of the inorganic contaminants As(V), Sb(V), Cr(VI), by alternating 7-day cycles of sparging with either oxic or anoxic gas mixtures. During the redox cycles, we assessed the relative importance of different contaminant sequestration mechanisms under sterile and non-sterile conditions. The non-sterile experiments were carried out 1) with the argillaceous material as is, that is, containing the native microbial population, 2) with the addition of ethanol as a source of labile organic carbon, and 3) with the addition of both ethanol and a soil microbial inoculum. In order to capture the observed solid-solution partitioning trends, a series of mixed thermodynamic-kinetic models representing the dynamic conditions in the experiments were developed using PHREEQC. Parameter values for processes such as adsorption, which occurred in all experiments, were kept constant across all the simulations. Additional formulations were introduced as needed to account for the microbial detoxification and respiration of the contaminants in the increasing complexity experiments. Abiotic adsorption of As and abiotic reductive precipitation of Cr dominated sequestration of these two contaminants under all experimental conditions, whereas the presence of microorganisms was essential to decrease the aqueous Sb concentration. Once reduced, As(III), Sb(III), and Cr(III) were not reoxidized upon exposure to dissolved O 2 in any of the experiments. Neither the mineralogy nor the native microbiota catalysed contaminant oxidation processes. Thus, kinetically, the reduction of As(V), Sb(V), and Cr(VI) was irreversible over the experimental duration (49 days). The capacity of the argillaceous matrix to reduce and sequester the aqueous contaminants, without subsequent remobilization to the aqueous phase during the oxic periods, supports the use of argillaceous barriers for geologic waste storage.

show abstract

Trace Element Solubility in a Multimetal-Contaminated Soil as Affected by Redox Conditions

Cited by 64 publications

References 84 publications

Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization

Biogeochemistry of Ni and Pb in a periodically flooded arable soil: Fractionation and redox-induced (im)mobilization

Effect of organic amendments on arsenic solubilization in soils during long-term flooded incubation

Speciation dynamics of oxyanion contaminants (As, Sb, Cr) in argillaceous suspensions during oxic-anoxic cycles

Contact Info

Product

Resources

About