The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Reductive Processes Controlling Arsenic Retention: Revealing the Relative Importance of Iron and Arsenic Reduction
Abstract
The fate and transport of arsenic is regulated, in part, by its strong affinity for iron (hydr)oxides. A transition from aerobic to anaerobic conditions resulting in concomitant reduction of both As(V) and iron (hydr)oxides can thus have a pronounced influence on As partitioning. However, it is presently unclear whether As desorption under anaerobic conditions results predominantly from a transformation from As(V) to As(III) or from mineralogical changes as a consequence of iron and manganese reduction. Here, we examine desorption of both As(III) and As(V) from ferrihydrite-, goethite-, and hematite-coated sand under hydrodynamic conditions. Furthermore, to resolve the relative role of Fe(III) and/or As(V) reduction in regulating dissolved As concentrations, we also examined As desorption from ferrihydrite- and goethite-coated sands presorbed with As(V) using wild type or mutants of Shewanella sp. ANA-3, capable of Fe(III)- and/or As(V)-reduction. We reveal substantial differences in As(III) and As(V) desorption from ferrihydrite, goethite, and hematite. Despite being adsorbed to a greater extent than As(V), As(III) is desorbed more rapidly and extensively from all oxides, suggesting weaker binding of As(III) than As(V). When As(V) and Fe(III) reduction are decoupled, As(V) reduction appears to be the dominant process controlling As release. Our results also suggest the importance of appreciating physical properties of specific Fe (hydr)oxides when predicting the potential for As desorption.
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Cites
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Cited by
Biogeochemical Redox Processes and their Impact on Contaminant Dynamics
Borch, T., Kretzschmar, R., Kappler, A., Cappellen, P. V., Ginder-Vogel, M., Voegelin, A., & Campbell, K. (2010) · Environmental Science & Technology · doi:10.1021/es9026248 · Cited by 1,456
Spatial and Temporal Variations of Groundwater Arsenic in South and Southeast Asia
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Self-citationEarth Abides Arsenic Biotransformations
Zhu, Y.-G., Yoshinaga, M., Zhao, F.-J., & Rosen, B. P. (2014) · Annual Review of Earth and Planetary Sciences · doi:10.1146/annurev-earth-060313-054942 · Cited by 550
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Self-citationIron and aluminium based adsorption strategies for removing arsenic from water
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Self-citationArsenic chemistry in soils and sediments
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Self-citationRichards, L. A., Magnone, D., Sovann, C., Kong, C., Uhlemann, S., Kuras, O., van Dongen, B. E., Ballentine, C. J., & Polya, D. A. (2017) · Science of the Total Environment · doi:10.1016/j.scitotenv.2017.02.217 · Cited by 42
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Metadata
- Authors
- Tufano, K. J., Reyes, C., Saltikov, C. W., & Fendorf, S.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-10-15
- Volume
- 42
- Issue
- 22
- Pages
- 8283-8289
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2023896700
- Cited by
- 261
- References
- 34
- FWCI
- 11.22
- Type
- journal article
- Language
- en
- Open access
- closed
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