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Cited by 135Fluoride Effects and RemovalWastewater Treatment and Nitrogen RemovalAnaerobic Digestion and Biogas Production

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Toxicity of fluoride to microorganisms in biological wastewater treatment systems

Ochoa-Herrera, Valeria, Banihani, Qais, León, Glendy, Khatri, Chandra, Field, James A., Sierra-Alvarez, Reyes·2009·Water Research
DOI 10.1016/j.watres.2009.04.032
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Abstract

Fluoride is a common contaminant in a variety of industrial wastewaters. Available information on the potential toxicity of fluoride to microorganisms implicated in biological wastewater treatment is very limited. The objective of this study was to evaluate the inhibitory effect of fluoride towards the main microbial populations responsible for the removal of organic constituents and nutrients in wastewater treatment processes. The results of short-term batch bioassays indicated that the toxicity of sodium fluoride varied widely depending on the microbial population. Anaerobic microorganisms involved in various metabolic steps of anaerobic digestion processes were found to be very sensitive to the presence of fluoride. The concentrations of fluoride causing 50% metabolic inhibition (IC(50)) of propionate- and butyrate-degrading microorganisms as well as mesophilic and thermophilic acetate-utilizing methanogens ranged from 18 to 43 mg/L. Fluoride was also inhibitory to nitrification, albeit at relatively high levels (IC(50)=149 mg/L). Nitrifying bacteria appeared to adapt rapidly to fluoride, and a near complete recovery of their metabolic activity was observed after only 4d of exposure to high fluoride levels (up to 500 mg/L). All other microbial populations evaluated in this study, i.e., glucose fermenters, aerobic glucose-degrading heterotrophs, denitrifying bacteria, and H(2)-utilizing methanogens, tolerated fluoride at very high concentrations (>500 mg/L).

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Crossref · 10.1016/j.watres.2009.04.032

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Metadata

Authors
Ochoa-Herrera, V., Banihani, Q., León, G., Khatri, C., Field, J. A., & Sierra-Alvarez, R.
Affiliations
University of Arizona (US)
Venue
Water Research
Publisher
Elsevier BV
Published
2009-07
Volume
43
Issue
13
Pages
3177-3186
ISSN
0043-1354 (ISSN-L)
DOI
10.1016/j.watres.2009.04.032
OpenAlex
W2123295237
Cited by
135
References
42
Citations by year
2026: 10 · 2025: 16 · 2024: 7 · 2023: 11 · 2022: 13 · 2021: 12 · 2020: 8 · 2019: 9 · 2018: 6 · 2017: 4 · 2016: 10 · 2015: 4 · 2014: 6 · 2013: 5 · 2012: 3
FWCI
4.33
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Water Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Semiconductor Research Corporation
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Fluoride Effects and Removal
  • Physical Sciences › Environmental Science › Pollution › Wastewater Treatment and Nitrogen Removal
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
Keywords
fluoride toxicity, sodium fluoride, biological wastewater treatment, microbial inhibition, anaerobic digestion, methanogenic archaea, nitrification, nitrifying bacteria, denitrifying bacteria, IC50, microbial adaptation
MeSH terms
Aerobiosis, Anaerobiosis, Bacteria, Butyrates, Fermentation, Fluorides, Glucose, Methane, Nitrogen, Organic Chemicals, Propionates, Sewage, Waste Disposal, Fluid, Water Pollutants, Chemical, Water Purification, Toxicity Tests, Heterotrophic Processes

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