Bioremoval of Fluoride from Synthetic Water Using Gram-Negative Bacteria
            <i>Shewanella putrefaciens</i>

Dwivedi, Shubha; Mondal, Prasenjit; Balomajumder, Chandrajit

doi:10.1061/(asce)hz.2153-5515.0000341

Cited by 12 publications

(4 citation statements)

References 16 publications

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“…This might be attributed to the fact that the isolate was collected from a water sample with fluoride concentration of 10 mg L −1 , so it could thrive only till 15 mg L −1 concentration. Higher concentrations of fluoride might have become toxic to the bacterium which reduced the fluoride removal .…”

Section: Resultsmentioning

confidence: 99%

“…Several studies have been performed with immobilized bacterial cells for production of chemicals, wastewater treatment, and so forth [17,18]. A single study has been reported on defluoridation of water using the immobilized cells of Shewanella putrefaciens MTCC 8104 [19]. In the experiment, the authors have also performed simultaneous adsorption and bioaccumulation process using Citrus limetta peels and Ficus religiosa leaves as an adsorbent along with the bacteria, achieving a maximum removal of 91.7%.…”

Section: Introductionmentioning

confidence: 99%

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Comparative assessment of the fluoride removal capability of immobilized and dead cells of Staphylococcus lentus (KX941098) isolated from contaminated groundwater

Mukherjee

Sahu

Halder

2018

Env Prog and Sustain Energy

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A microbial treatment of fluorinated aqueous solution was performed by using a novel bacterial strain isolated from fluoride‐loaded groundwater. Defluoridation efficiencies of two forms viz. immobilized live cells and dead biomass of the isolate were investigated by means of a series of batch studies. Initial fluoride concentration (1–25 mg L−1), pH (5–9), bead numbers (5–30), agitation speed (100–240 rpm), and temperature (20–45°C) were the various parameters studied to investigate the influence of each of them on fluoride removal capacity of the microbial species. The bacterial species isolated was able to withstand fluoride concentration till 20 mg L−1 in case of immobilized live cells, whereas, the dead biomass could reduce the concentration only up to 10 mg L−1. 16S rRNA sequencing confirmed the isolate to be Staphylococcus lentus. Biochemical characterizations were performed. Biokinetics of fluoride uptake by the isolate was performed. Instrumental analysis such as scanning electron microscopy and FTIR substantiated the uptake of the fluoride ions by the biomass. Maximum removal of 92% and 85.03% were achieved by the immobilized cells and dead biomass respectively which is the highest reported till date. Maximum sorption capacity of 5.198 mg g−1 of the dead cells were obtained from the Langmuir isotherm. Adsorption equilibria was found to be best explained by the Freundlich isotherm model. Pseudo‐second‐order kinetics provided the best fit to the fluoride‐sorption system. Experimental results revealed that the immobilized cells of Staphylococcus lentus (KX941098) could be used as potential agents in removal of fluoride from contaminated groundwater. © 2018 American Institute of Chemical Engineers Environ Prog, 37: 1573–1586, 2018

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative assessment of the fluoride removal capability of immobilized and dead cells of Staphylococcus lentus (KX941098) isolated from contaminated groundwater

Mukherjee

Sahu

Halder

2018

Env Prog and Sustain Energy

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“…418 From a starting concentration of 20 mg L −1 , the SABA approach employing leaves and Citrus limetta peels together with the bacteria lowered the F level below 1.5 mg L −1 . 423…”

Section: Integrated Methodsmentioning

confidence: 99%

Fluoride contamination, consequences and removal techniques in water: a review

Ahmad

Singh

Arfin

et al. 2022

Environ. Sci.: Adv.

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“…This can be achieved by immobilizing bacterial cells [228,229]. In the experiment, bacterial cells were immobilized on different media, and more than 90% efficiencies were obtained [229,230]. This process can be further advanced via understanding the interactions between immobilized cells and fluoride ions at a molecular level, which can help to develop advanced genetically modified organisms.…”

Section: Bacterial Remediationmentioning

confidence: 99%

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

et al. 2021

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Fluoride is widely found in soil–water systems due to anthropogenic and geogenic activities that affect millions worldwide. Fluoride ingestion results in chronic and acute toxicity, including skeletal and dental fluorosis, neurological damage, and bone softening in humans. Therefore, this review paper summarizes biological processes for fluoride remediation, i.e., bioaccumulation in plants and microbially assisted systems. Bioremediation approaches for fluoride removal have recently gained prominence in removing fluoride ions. Plants are vulnerable to fluoride accumulation in soil, and their growth and development can be negatively affected, even with low fluoride content in the soil. The microbial bioremediation processes involve bioaccumulation, biotransformation, and biosorption. Bacterial, fungal, and algal biomass are ecologically efficient bioremediators. Most bioremediation techniques are laboratory-scale based on contaminated solutions; however, treatment of fluoride-contaminated wastewater at an industrial scale is yet to be investigated. Therefore, this review recommends the practical applicability and sustainability of microbial bioremediation of fluoride in different environments.

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Bioremoval of Fluoride from Synthetic Water Using Gram-Negative Bacteria Shewanella putrefaciens

Cited by 12 publications

References 16 publications

Comparative assessment of the fluoride removal capability of immobilized and dead cells of Staphylococcus lentus (KX941098) isolated from contaminated groundwater

Comparative assessment of the fluoride removal capability of immobilized and dead cells of Staphylococcus lentus (KX941098) isolated from contaminated groundwater

Fluoride contamination, consequences and removal techniques in water: a review

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

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