In situ coupling of reduction and oxidation processes with alternating current-driven bioelectrodes for efficient mineralization of refractory pollutants

Engineering, Journal Year: 2024, Volume and Issue: 43, P. 125 - 138

Published: June 1, 2024

The effective elimination of aromatic compounds from wastewater is imperative for safeguarding the ecological environment. Bioelectrochemical processes that combine cathodic reduction and anodic oxidation represent a promising approach biomineralization compounds. However, conventional direct current bioelectrochemical methods have intrinsic limitations. In this study, low-frequency low-voltage alternating (LFV-AC)-driven bioelectrode offering periodic in situ coupling was developed compounds, as exemplified by degradation alizarin yellow R (AYR). LFV-AC stimulated biofilm demonstrated efficient bidirectional electron transfer oxidation–reduction bifunctionality, considerably boosting AYR (63.07% ± 1.91%) subsequent mineralization intermediate products (98.63% 0.37%). stimulation facilitated assembly collaborative microbiome dedicated to metabolism, characterized an increased abundance functional consortia proficient azo dye (Stenotrophomonas Bradyrhizobium), (Sphingopyxis Sphingomonas), (Geobacter Pseudomonas). notable enrichment genes encoding azo- nitro-reductases, catechol oxygenases, redox mediator proteins. These findings highlight effectiveness biomineralization, novel sustainable removal refractory organic pollutants wastewater.

Language: Английский

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Dual mechanism with graded energy storage in long-term aqueous zinc-ion batteries achieved using a polymer/vanadium dioxide cathode

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(18), P. 6666 - 6675

Published: Jan. 1, 2024

The functional groups on NDA can fix the iodine produced in oxidation process, forming a graded energy storage structure.

Language: Английский

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The rhizosphere microbiome reduces the uptake of arsenic and tungsten by Blechnum orientale by increasing nutrient cycling in historical tungsten mining area soils

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 924, P. 171429 - 171429

Published: March 4, 2024

Language: Английский

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Multiple Pathways of Vanadate Reduction and Denitrification Mediated by Denitrifying Bacterium Acidovorax sp. strain BoFeN1

Water Research, Journal Year: 2024, Volume and Issue: 257, P. 121747 - 121747

Published: May 7, 2024

Language: Английский

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Functional group-specific reduction of Cr(VI) by low molecular weight organic acids in frozen solution: Kinetics, mechanism and DFT calculation

Water Research, Journal Year: 2024, Volume and Issue: 265, P. 122221 - 122221

Published: Aug. 5, 2024

Language: Английский

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Distinguishing contributions of diverse sediment components to vanadium transport, immobilization and transformation in aquifer

Water Research, Journal Year: 2024, Volume and Issue: 265, P. 122248 - 122248

Published: Aug. 10, 2024

Language: Английский

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Ecological and Health Risks of Vanadium in the Biogeosphere

Reviews of Environmental Contamination and Toxicology, Journal Year: 2024, Volume and Issue: 262(1)

Published: May 24, 2024

Language: Английский

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Effects and driving mechanisms of bioremediation on groundwater after the neutral in situ leaching of uranium

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 174406 - 174406

Published: July 2, 2024

Language: Английский

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Electron Transfer Pathways and Vanadium Isotope Fractionation During Microbially Mediated Vanadate Reduction

Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Vanadate reduction by gram-positive fermentative bacteria isolated from deep-sea sediments on the northern Central Indian Ridge

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(1), P. e0317320 - e0317320

Published: Jan. 22, 2025

The oxidation states of vanadium determine its mobility and toxicity, dissimilatory vanadate reduction has been reported in several microorganisms, highlighting the potential significance this pathway remediation contamination biogeochemical cycle. However, to date, most known microorganisms capable reducing are Gram-negative respiratory bacteria belonging phylum Proteobacteria. In study, we isolated Tepidibacter mesophilus strain VROV1 from deep-sea sediments on northern Central Indian Ridge investigated ability reduce impact cellular metabolism. A series culture experiments revealed that efficiently reduces V(V) V(IV) during fermentation, even at mM levels, involves a direct biological process rather than indirect via metabolic products. Vanadium affects microbial carbon nitrogen Notably, presence vanadate, alanine production decreases, suggesting flux is diverted transamination reaction reduction. T . second Gram-positive bacterium identified vanadium, following Lactococcus raffinolactis , but these belong different classes: classified as Clostridia whereas L Bacilli specific rate removal by was high 2.8 pmol/cell/day, which comparable metal-reducing markedly exceeds Our findings expand distribution vanadate-reducing organisms within bacterial domain. Given wide range natural habitats close relatives, speculate fermentative may have greater global cycle previously thought.

Language: Английский

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