ArticleEnvironmental science & technology2009
Arsenite and ferrous iron oxidation linked to chemolithotrophic denitrification for the immobilization of arsenic in anoxic environments.
Article in Environmental science & technology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 88 citations in OpenAlex.
- The effect of biopolymer stabilisation on biostimulated or bioaugmented mine residue for potential technosol production.Scientific reports · 2024Article
- Arsenic immobilization and greenhouse gas emission depend on quantity and frequency of nitrogen fertilization in paddy soil.Heliyon · 2024Article
- Anoxygenic phototrophic arsenite oxidation by a Rhodobacter strain.Environmental microbiology · 2023Article
- The Microbiology of Metal Mine Waste: Bioremediation Applications and Implications for Planetary Health.GeoHealth · 2021Review
- Article
- Dynamics of gene expression associated with arsenic uptake and transport in rice during the whole growth period.BMC plant biology · 2020Article
- Diversity of Betaproteobacteria revealed by novel primers suggests their role in arsenic cycling.Heliyon · 2020Article
- A paddy field study of arsenic and cadmium pollution control by using iron-modified biochar and silica sol together.Environmental science and pollution research international · 2019Article
- Exploring Biodiversity and Arsenic Metabolism of Microbiota Inhabiting Arsenic-Rich Groundwaters in Northern Italy.Frontiers in microbiology · 2019Article
- The impact of biostimulation on the fate of sulfate and associated sulfur dynamics in groundwater.Journal of contaminant hydrology · 2014Article
- Electrochemically induced oxidative precipitation of Fe(II) for As(III) oxidation and removal in synthetic groundwater.Environmental science & technology · 2014Article
- Arsenic bioremediation by biogenic iron oxides and sulfides.Applied and environmental microbiology · 2013Article
- The role of denitrification on arsenite oxidation and arsenic mobility in an anoxic sediment column model with activated alumina.Biotechnology and bioengineering · 2010Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
The objective of this study was to explore a bioremediation strategy based on injecting NO3- to support the anoxic oxidation of ferrous iron (Fe(II)) and arsenite (As(II)) in the subsurface as a means to immobilize As in the form of arsenate (As(V)) adsorbed onto biogenic ferric (Fe(III)) (hydr)oxides. Continuous flow sand filled columns were used to simulate a natural anaerobic groundwater and sediment system with co-occurring As(III) and Fe(II) in the presence (column SF1) or absence (column SF2) of nitrate, respectively. During operation for 250 days, the average influent arsenic concentration of 567 microg L(-1) was reduced to 10.6 (+/-9.6) microg L(-1) in the effluent of column SF1. The cumulative removal of Fe(II) and As(II) in SF1 was 6.5 to 10-fold higher than that in SF2 Extraction and measurement of the mass of iron and arsenic immobilized on the sand packing of the columns were close to the iron and arsenic removed from the aqueous phase during column operation. The dominant speciation of the immobilized iron and arsenic was Fe(III) and As(V) in SF1, compared with Fe(II) and As(III) in SF2. The speciation was confirmed by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results indicate that microbial oxidation of As(III) and Fe(II) linked to denitrification resulted in the enhanced immobilization of aqueous arsenic in anaerobic environments by forming Fe(III) (hydr)oxide coated sands with adsorbed As(V).
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Registered trials
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