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Abiotic Nitrate Reduction to Ammonium: Key Role of Green Rust
Abstract
Leaching of nitrate from soils and sediments can be reduced in anoxic environments due to denitrification to N 2 O/N 2 or reduction of nitrate to ammonium. While microbial dissimilatory reduction of nitrate to ammonia is well known, it is shown here that this conversion can also proceed at appreciable rates in abiotic systems in the presence of green rust compounds [Fe II 4 Fe III 2 (OH) 12 SO 4 · y H 2 O]. In the reaction nitrate is stoichiometrically reduced to ammonium, and magnetite (Fe 3 O 4 ) is the sole Fe-containing product. At a constant pH of approximately 8.25 and 25 °C, the rate expression is given as: d[NH 4 + ]/d t = k [Fe(II)] GR [NO 3 - ],where k = 4.93 × 10 - 5 ± 0.39 × 10 - 5 L mol - 1 s - 1 . In anoxic soils and sediments, this reaction may also lead to a nitrate to ammonium reduction, at rates of similar magnitude or even higher than microbial reduction rates. Hence green rust should be considered a possible important reductant for nitrate reduction to ammonium in subsoils, sediments, or aquifers where microbially mediated reduction rates are small.
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Cited by
A mechanism of abiotic immobilization of nitrate in forest ecosystems: the ferrous wheel hypothesis
Davidson, E. A., Chorover, J., & Dail, D. B. (2003) · Global Change Biology · doi:10.1046/j.1365-2486.2003.00592.x · Cited by 333
The Drive to Life on Wet and Icy Worlds
Russell, M. J., Barge, L. M., Bhartia, R., Bocanegra, D., Bracher, P. J., Branscomb, E., Kidd, R., McGlynn, S., Meier, D. H., Nitschke, W., et al. (2014) · Astrobiology · doi:10.1089/ast.2013.1110 · Cited by 288
“Further examples are the synthesis of ammonia, and thence amino acids and peptides (Hansen et al., 1996; Huber and Wächtershäuser, 2003; Huber et al., 2003), the latter possibly generated on sphalerite or cleiophane (pristine ZnS) (Ohara and Cody, 2010; cf. Boyce et al., 1983).”
InfluentialKukkadapu, R. K., Zachara, J. M., Fredrickson, J. K., & Kennedy, D. W. (2004) · Geochimica et Cosmochimica Acta · doi:10.1016/j.gca.2003.12.024 · Cited by 192
Iron(II,III) hydroxycarbonate green rust formation and stabilization from lepidocrocite bioreduction
Ona-Nguema, G., Abdelmoula, M., Jorand, F., Benali, O., Antoine Géhin, Block, J.-C., & Génin, J.-M. R. (2002) · Environmental Science & Technology · doi:10.1021/es0020456 · Cited by 189
The inevitable journey to being
Russell, M. J., Nitschke, W., & Branscomb, E. (2013) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2012.0254 · Cited by 174
Metadata
- Authors
- Hansen, H. C. B., Koch, C. B., Nancke-Krogh, H., Borggaard, O. K., & Sørensen, J.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-05-01
- Volume
- 30
- Issue
- 6
- Pages
- 2053-2056
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2017000730
- Cited by
- 336
- References
- 0
- FWCI
- 8.88
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hansen, H. C. B., Koch, C. B., Nancke-Krogh, H., Borggaard, O. K., & Sørensen, J. (1996). Abiotic Nitrate Reduction to Ammonium: Key Role of Green Rust. Environmental Science & Technology. https://doi.org/10.1021/es950844w
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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