Soil indigenous microorganisms alleviate soluble vanadium release from industrial dusts

Li, Yi’na; Li, Liuliu; Han, Yawei; Shi, Jiaxin; He, Jinxi; Cheng, Shijie; Liu, Hui; Zhang, Baogang

doi:10.1016/j.jhazmat.2022.128837

Cited by 28 publications

(11 citation statements)

References 81 publications

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“…Evidence from XPS analysis (Figure A–D) suggested that insoluble V(IV) was the main product of microbial V(V) reduction, in agreement with existing V(V) biodetoxification studies. , The transfer of electrons from the structural Fe and S in pyrrhotite may be what initiated this bioreduction of V(V) to V(IV). Consequently, autotrophs oxidizing reductive Fe and S species in pyrrhotite were crucial.…”

Section: Discussionmentioning

confidence: 94%

Vanadate Bio-Detoxification Driven by Pyrrhotite with Secondary Mineral Formation

Zhang

Wang

et al. 2023

Environ. Sci. Technol.

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Vanadium(V) is a redox-sensitive heavy-metal contaminant whose environmental mobility is strongly influenced by pyrrhotite, a widely distributed iron sulfide mineral. However, relatively little is known about microbially mediated vanadate [V(V)] reduction characteristics driven by pyrrhotite and concomitant mineral dynamics in this process. This study demonstrated efficient V(V) bioreduction during 210 d of operation, with a lifespan about 10 times longer than abiotic control, especially in a stable period when the V(V) removal efficiency reached 44.1 ± 13.8%. Pyrrhotite oxidation coupled to V(V) reduction could be achieved by an enriched single autotroph (e.g., Thiobacillus and Thermomonas) independently. Autotrophs (e.g., Sulfurifustis) gained energy from pyrrhotite oxidation to synthesize organic intermediates, which were utilized by the heterotrophic V(V) reducing bacteria such as Anaerolinea, Bacillus, and Pseudomonas to sustain V(V) reduction. V(V) was reduced to insoluble tetravalent V, while pyrrhotite oxidation mainly produced Fe(III) and SO4 2–. Secondary minerals including mackinawite (FeS) and greigite (Fe3S4) were produced synchronously, resulting from further transformations of Fe(III) and SO4 2– by sulfate reducing bacteria (e.g., Desulfatiglans) and magnetotactic bacteria (e.g., Nitrospira). This study provides new insights into the biogeochemical behavior of V under pyrrhotite effects and reveals the previously overlooked mineralogical dynamics in V(V) reduction bioprocesses driven by Fe(II)-bearing minerals.

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Section: Discussionmentioning

confidence: 94%

Vanadate Bio-Detoxification Driven by Pyrrhotite with Secondary Mineral Formation

Zhang

Wang

et al. 2023

Environ. Sci. Technol.

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“…For network construction, OTUs that occurred in more than 20% of all samples were used to improve statistical confidence (Ju et al, 2014). Spearman correlation between the OTUs was estimated employing Hmisc package (Harrell & Dupont, 2017; Li et al, 2022), and Spearman correlations (| r | > 0.6 and FDR p < 0.01) were retained in the networks (Zheng et al, 2021). The three major modules in the bacterial networks at jointing period (27 samples, namely 3 treatments × 3 compartments × 3 duplicates) and flowering periods (27 samples, namely 3 treatments × 3 compartments × 3 duplicates) of proso millet were selected using the Gephi platform (v.0.9.2; https://gephi.org/).…”

Section: Methodsmentioning

confidence: 99%

Bacterial communities in proso millet root‐associated compartments are regulated by growth period and mulching regime

et al. 2022

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Mulching regimes have a promoted impact on the soil hydrothermal environments and crop productions. However, the time‐dependent variations in root‐associated microbial communities under distinct mulching regimes in the Loess Plateau have not been thoroughly explored. Here, we investigated the regulatory impacts of plastic film mulching (FM) and ridge‐furrow mulching system (RF) on the microbial community compositions, diversities, and ecological networks in the distinct compartments (e.g., root, rhizosphere, and bulk soil) at jointing and flowering periods of proso millet, and we compared these two regimes to no mulching (NM). Mulching regimes improved the bulk and rhizosphere soil quality at jointing period, whereas reduced them at flowering period. Bacterial structure and composition of the three compartments were significantly influenced by growth periods and mulching regimes. Furthermore, mulching regimes effectively increased the alpha diversities of rhizosphere and root communities at flowering period. Soil temperature and total N were the most essential variables affecting the bulk soil and rhizosphere community structure, respectively. With the growth and development of proso millet, the network complexity and stability increased, and the abundance of different modules in the three compartments were regulated by mulching regimes. Proteobacteria and Acidobacteriota were the keystone species at jointing period, whereas, at flowering period, only Proteobacteria were the keystone species. In addition, FM regime significantly increased the species interaction and abundance of keystone taxa than those of non‐mulching at both periods. These results highlighted that mulching regimes were observed to be a recommended selection for improving soil quality, regulating bacterial diversity and structure, and stabilizing the species interaction, thereby providing guidance for choosing the ideal cultivation techniques from the perspective of microbial ecology in the Loess Plateau.

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“…Vanadium oxides (V 2 O 5 and VO 2 ) also appear in nanoscale industrial dust (30−250 nm) from the V smelting process. 67 Nanoparticles containing V are also detected in suspended sediments of the Laguna estuarine system in southern Brazil, which covers the area around the main coal plant of South America. 68 Size-fraction-based V speciation analysis shows that 45−100% of atmospheric V is present in labile forms with molecular weight <1000 Da, while higher molecular weight or insoluble fractions mainly contain nonlabile V. 69 Vanadium speciation depends on its emission pathways.…”

Section: T H Imentioning

confidence: 99%

“…V(IV) is dominant in diesel particulate matter emissions, whereas V(V) constitutes the largest fraction of particulate matter from engines equipped with V-based selective catalytic reductors, with V 2 O 5 being the dominant species. Vanadium oxides (V 2 O 5 and VO 2 ) also appear in nanoscale industrial dust (30–250 nm) from the V smelting process . Nanoparticles containing V are also detected in suspended sediments of the Laguna estuarine system in southern Brazil, which covers the area around the main coal plant of South America .…”

Section: Migration and Transformationmentioning

confidence: 99%

Vanadium in the Environment: Biogeochemistry and Bioremediation

Zhang,

et al. 2023

Environ. Sci. Technol.

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Soil indigenous microorganisms alleviate soluble vanadium release from industrial dusts

Cited by 28 publications

References 81 publications

Vanadate Bio-Detoxification Driven by Pyrrhotite with Secondary Mineral Formation

Vanadate Bio-Detoxification Driven by Pyrrhotite with Secondary Mineral Formation

Bacterial communities in proso millet root‐associated compartments are regulated by growth period and mulching regime

Vanadium in the Environment: Biogeochemistry and Bioremediation

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