ArticleEnvironmental science & technology2016
In Situ Magnetite Formation and Long-Term Arsenic Immobilization under Advective Flow Conditions.
Article in Environmental science & technology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 58 citations in OpenAlex.
- Coexisting Phosphate Controls Arsenate Speciation and Partitioning during Fe(II)-Catalyzed Ferrihydrite Transformation.ACS earth & space chemistry · 2025Article
- Sustaining Irrigation Supplies through Immobilization of Groundwater ArsenicEnvironmental science & technology · 2024Article
- Model-Based Analysis of Arsenic Retention by Stimulated Iron Mineral Transformation under Coastal Aquifer Conditions.ACS ES&T water · 2024Article
- Sulfate reduction accelerates groundwater arsenic contamination even in aquifers with abundant iron oxides.Nature water · 2023Article
- In situ arsenic immobilisation for coastal aquifers using stimulated iron cycling: Lab-based viability assessment.Applied geochemistry : journal of the International Association of Geochemistry and Cosmochemistry · 2022Article
- Quantifying Riverine Recharge Impacts on Redox Conditions and Arsenic Release in Groundwater Aquifers Along the Red River, Vietnam.Water resources research · 2019Article
- Arsenic mobilization from iron oxides in the presence of oxalic acid under hydrodynamic conditions.Chemosphere · 2018Article
- Model-Based Analysis of Arsenic Immobilization via Iron Mineral Transformation under Advective Flows.Environmental science & technology · 2018Article
- Identifying and Quantifying the Intermediate Processes during Nitrate-Dependent Iron(II) Oxidation.Environmental science & technology · 2018Article
- Simultaneously Quantifying Ferrihydrite and Goethite in Natural Sediments Using the Method of Standard Additions with X-ray Absorption Spectroscopy.Chemical geology · 2018Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
In situ precipitation of magnetite and other minerals potentially sequesters dissolved arsenic (As) in contaminated aquifers. This study examines As retention and transport in aquifer sediments using a multistage column experiment in which magnetite and other minerals formed from added nitrate and ferrous iron (Fe). Sediments were collected from the Dover Municipal Landfill Superfund site. Prior to nitrate-Fe(II) addition, As was not effectively retained within the sediments in the column. The combination of nitrate (10 mM) and Fe(II) (4 mM), resulted in mineral precipitation and rapidly decreased effluent As concentrations to <10 μg L(-1). Mineralogical analyses of sectioned replicate columns using sequential extractions, magnetic susceptibility and X-ray absorption spectroscopy indicate that magnetite and ferrihydrite formed in the column following nitrate-Fe(II) addition. This magnetite persisted in the column even as conditions became reducing, whereas ferrihydrite was transformed to more stable Fe oxides. This magnetite incorporated As into its structure during precipitation and subsequently adsorbed As. Adsorption to the minerals kept effluent As concentrations <10 μg L(-1) for more than 100 pore volumes despite considerable Fe reduction. The results indicate that it should be feasible to produce an in situ reactive filter by nitrate-Fe(II) injection.
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Registered trials
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