Application of biological processes for the removal of arsenic from groundwaters
Abstract
Bacteria are widespread, abundant, geochemically reactive components of aquatic environments. In particular, iron-oxidizing bacteria, are involved in the oxidation and subsequent precipitation of ferrous ions. Due to this property, they have been applied in drinking water treatment processes, in order to accelerate the removal of ferrous iron from groundwaters. Iron also exerts a strong influence on arsenic concentrations in groundwater sources, while iron oxides are efficient adsorbents in arsenic removal processes. In the present study, the removal of arsenic (III and V), during biological iron oxidation has been investigated. The results showed that both inorganic forms of arsenic could be efficiently treated, for the concentration range of interest in drinking water (50-200microg/L). In addition, the oxidation of trivalent arsenic was found to be catalyzed by bacteria, leading to enhanced overall arsenic removal, because arsenic in the form of arsenites cannot be efficiently sorbed onto iron oxides. This method comprises a cost competitive technology, which can find application in treatment of groundwaters with elevated concentrations of iron and arsenic.
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The use of chemical reagents in drinking water treatment is discouraged as it often leads to the formation of undesirable byproducts such as trihalomethanes.
“The use of chemical reagents in drinking water treatment is discouraged as it often leads to the formation of undesirable byproducts such as trihalomethanes (THMs) [206, 207].”
From Arsenic Contamination of Groundwater: A Review of Sources, Prevalence, Health Risks, and Strategies for Mitigation (2014) · cites this paper as [206]
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Kadlec, R. H., & Wallace, S. (2008) · doi:10.1201/9781420012514 · Cited by 1,009 · see citing works
Novel biofiltration methods for the treatment of heavy metals from industrial wastewater
Srivastava, N. K., & Majumder, C. B. (2008) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2007.09.101 · Cited by 795 · see citing works
Shankar, S., Shanker, U., & Shikha (2014) · The Scientific World Journal · doi:10.1155/2014/304524 · Cited by 616 · see citing works
“Under optimum experimental conditions, trivalent arsenic has been found to be oxidized by these bacteria, contributing to almost complete arsenic removal (up to 95%) even when initial arsenic concentrations were 200mg/L [213].”
BackgroundLaundry wastewater treatment using a combination of sand filter, bio-char and teff straw media
Yaseen, Z. M., Zigale, T. T., Tiyasha, D., R. K., Salih, S. Q., Awasthi, S., Tung, T. M., Al-Ansari, N., & Bhagat, S. K. (2019) · Scientific Reports · doi:10.1038/s41598-019-54888-3 · Cited by 68 · see citing works
- Authors
- Katsoyiannis, I. A., & Zouboulis, A. I.
- Affiliations
- Aristotle University of Thessaloniki (GR)
- Corresponding author
- Zouboulis, Anastasios I.
- Venue
- Water Research
- Publisher
- Elsevier BV
- Published
- 2004-01
- Volume
- 38
- Issue
- 1
- Pages
- 17-26
- ISSN
- 0043-1354 (ISSN-L)
- OpenAlex
- W2048934765
- Cited by
- 384
- References
- 0
- Citations by year
- 2026: 6 · 2025: 6 · 2024: 25 · 2023: 15 · 2022: 22 · 2021: 31 · 2020: 15 · 2019: 15 · 2018: 17 · 2017: 21 · 2016: 12 · 2015: 19 · 2014: 19 · 2013: 20 · 2012: 26
- FWCI
- 9.25
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Water Research (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Deutscher Akademischer Austauschdienst
- General Secretariat for Research and Technology
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Arsenic contamination and mitigation
- Physical Sciences › Environmental Science › Environmental Chemistry › Mine drainage and remediation techniques
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Water Treatment and Disinfection
- Keywords
- arsenic removal, groundwater treatment, iron-oxidizing bacteria, arsenite oxidation, arsenate, iron oxide, arsenic adsorption, drinking water treatment
- MeSH terms
- Arsenic, Bacteria, Biodegradation, Environmental, Cost Control, Iron, Oxidation-Reduction, Chemical Precipitation, Soil Pollutants, Water Pollutants, Water Purification
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