Kinetic modeling and isotherm approach for biosorptive removal of hexavalent chromium using heat inactivated fungal biomass

Das, Sasmita; Behera, Bikash Chandra; Mohapatra, Ranjan K.; Pradhan, Biswaranjan; Sudarshan, M.; Chakraborty, Anindita; Thatoi, Hrudayanath

doi:10.1002/kin.21641

Cited by 2 publications

(1 citation statement)

References 48 publications

(132 reference statements)

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“…The ionizable amino acid composition of the protein coat in most viruses makes them sensitive to environmental pH, which in turn affects their ionization and influences their adsorption and desorption behavior on particle surfaces. Numerous equilibrium experiments consistently demonstrate a decreasing trend in virus adsorption onto particles as pH increases [29][30][31]. Cao, Tsai [32] discovered that in sandy soil, dissolved soil organic matter competes with MS-2 for binding sites and can modify the surface charges of sorption sites.…”

Section: Introductionmentioning

confidence: 97%

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Li,

Zhang,

et al. 2024

Applied Sciences

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Drinking groundwater contamination by pathogenic viruses represents a serious risk to worldwide public health, particularly for enteric viruses, which exhibit high prevalence and occurrence during outbreaks. Understanding how enteric viruses adsorb in groundwater is essential to protecting human health and ensuring the sustainable use of water resources. The adsorption properties of Coxsackievirus A16 (CA16), a common gastrointestinal virus that spreads through groundwater, were investigated in this work. A typical batch equilibrium approach was used to investigate CA16 adsorption and factors that influence it. In a laboratory recognized nationally as a biosafety level 2 facility, stringent research protocols were followed to guarantee compliance with experimental standards. The variables that were investigated included the size of the sediment particles, the starting concentration of the virus, temperature, pH level, and humic acid content. The findings showed that the CA16 virus was more strongly attracted to finer sediment particles and that its adsorption increased as the size of the sediment particle decreased. Furthermore, it was discovered that higher temperatures improved the CA16 virus’s ability to bind to sediment particles. The pH of the aqueous environment has a significant effect on the effectiveness of virus adsorption; higher effectiveness was seen in acidic environments. Furthermore, it was found that the presence of humic acid decreased the ability of clay to adsorb CA16, suggesting that humic acid has a detrimental influence on clay’s ability to adsorb viruses. The examination of kinetic models demonstrated that, in every scenario examined, the adsorption process of CA16 adhered to the pseudo-second-order kinetics model. Additionally, the Langmuir and Freundlich isotherm models were used to assess the equilibrium data that were collected in this investigation. The outcomes amply proved that the most accurate representation of the adsorption equilibrium was given by the Langmuir isotherm model. The study offered a solid scientific foundation for treating groundwater and creating plans to stop the spread of viruses.

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Section: Introductionmentioning

confidence: 97%

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Li,

Zhang,

et al. 2024

Applied Sciences

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Biosorption potential of Purpureocillium lilacinum biomass for chromium (VI) removal: isolation, characterization, and significance of growth limiting factors

Kerga,

Shibeshi,

Prabhu

et al. 2023

Appl Biol Chem

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Chromium (VI) is known to be harmful element that commonly found industrial waste, mining activities, and wastewater discharges from various industries. When released into the environment, Cr (VI) can contaminate soil, water, and air, posing a serious threat to living organisms. Aiming to Cr decontamination, this work was framed to isolate the fungal species having high Cr tolerance capacity and to exploit as bio-sorbent for the removal of Cr (VI) from aqueous solutions by biosorption. Among the fungal species isolated from the Cr (VI) contaminated soil sample, the filamentous fungus of Ophiocordycipitaceae family, Purpureocillium lilacinum was identified using molecular sequencing technique, showed maximum tolerance against Cr (VI) with a tolerance index of 1.19 ± 0.23. Further, Plackett Burman Design was applied to investigate for ascertaining the significance of different carbon and nitrogen sources on P. lilacinus growth, as well as the influence of environmental factors, such as pH, temperature, and Cr (VI) concentration. The results explicated that glucose was the most preferred carbon source for P. lilacinus, while yeast extract was the most preferred for nitrogen source. The optimum pH value and temperature were found to be 6.0 and 26 °C, respectively. In addition, P. lilacinus isolate was identified to survive in high concentrations of Cr (VI), indicating its potential for employing effective bioremediation of chromium-contaminated site.

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Kinetic modeling and isotherm approach for biosorptive removal of hexavalent chromium using heat inactivated fungal biomass

Cited by 2 publications

References 48 publications

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Biosorption potential of Purpureocillium lilacinum biomass for chromium (VI) removal: isolation, characterization, and significance of growth limiting factors

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