Adsorptive recovery of arsenic (III) ions from aqueous solutions using dried Chlamydomonas sp.

Mohamed, Mostafa Sh; Hozayen, Walaa G.; Alharbi, Reem Mohammed; Ibraheem, Ibraheem Borie M.

doi:10.1016/j.heliyon.2022.e12398

Cited by 11 publications

(5 citation statements)

References 57 publications

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“…The peak at 1055 cm –1 corresponds to the C–O group banding of aliphatic ether, and the functional group peak at 699 cm –1 is responsible for the C=C bonding of alkane. These identified As III biosorption peaks and patterns are consistent with previous studies and highlight the involvement of various aliphatic, aromatic, and nitro compounds with hydroxyl amino groups in As III biosorption 38 .…”

Section: Resultssupporting

confidence: 90%

“…The application-based study to standardize the biosorption potential of any such system requires the efficacy analysis in various environmental variables 34 , 35 . The nature of such biosorption can be estimated by biosorption isotherms, kinetics, and thermodynamics, obtained after the computation of experimental results of concentration, time, and temperature variables, respectively 36 – 38 .…”

Section: Introductionmentioning

confidence: 99%

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Biosorption of arsenic (III) from aqueous solution using calcium alginate immobilized dead biomass of Acinetobacter sp. strain Sp2b

Khandelwal,

Keelka,

Jain

et al. 2024

Sci Rep

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This study presents a novel biosorbent developed by immobilizing dead Sp2b bacterial biomass into calcium alginate (CASp2b) to efficiently remove arsenic (AsIII) from contaminated water. The bacterium Sp2b was isolated from arsenic-contaminated industrial soil of Punjab, a state in India. The strain was designated Acinetobacter sp. strain Sp2b as per the 16S rDNA sequencing, GenBank accession number -OP010048.The CASp2b was used for the biosorption studies after an initial screening for the biosorption capacity of Sp2b biomass with immobilized biomass in both live and dead states. The optimum biosorption conditions were examined in batch experimentations with contact time, pH, biomass, temperature, and AsIII concentration variables. The maximum biosorption capacity (qmax = 20.1 ± 0.76 mg/g of CA Sp2b) was obtained at pH9, 35 ̊ C, 20 min contact time, and 120 rpm agitation speed. The isotherm, kinetic and thermodynamic modeling of the experimental data favored Freundlich isotherm (R2 = 0.941) and pseudo-2nd-order kinetics (R2 = 0.968) with endothermic nature (ΔH° = 27.42) and high randomness (ΔS° = 58.1).The scanning electron microscopy with energy dispersive X-ray (SEM–EDX) analysis indicated the As surface binding. The reusability study revealed the reasonable usage of beads up to 5 cycles. In conclusion, CASp2b is a promising, efficient, eco-friendly biosorbent for AsIII removal from contaminated water.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Biosorption of arsenic (III) from aqueous solution using calcium alginate immobilized dead biomass of Acinetobacter sp. strain Sp2b

Khandelwal,

Keelka,

Jain

et al. 2024

Sci Rep

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“…An analysis of the works reviewed here, from ref. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] and [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51], 66.7% of the manuscripts are generated from Asia (India, Nepal, Pakistan, Saudi Arabia, Malaysia, China, Iran, Republic of Korea, and Taiwan), 18.5% from Africa (Egypt, Nigeria, and South Africa), 7.4% from South America (Peru) and 3.7% each from North America (Canada) and Europe (Portugal) (the classification is done in the basis of the institution in which the corresponding author is located).…”

Section: Discussionmentioning

confidence: 99%

“…Dry microalga Chlamydomonas sp. is used to remove arsenic(III) from aqueous solutions [24]. The experimentation was performed at a constant temperature of 25°C and a shaking speed of 300 rpm.…”

Section: Arsenic(iii)mentioning

confidence: 99%

Arsenic and Biosorption

Robla¹

2023

Arsenic in the Environment - Sources, Impacts and Remedies

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Arsenic, either in (III) or (V) oxidation states forms, is a hazardous elements to humans, thus its removal from aqueous environments is of the utmost priority in the countries where this problem arises. From the various separation technologies, the removal f arsenic via biosorption processing attracted an interest, because besides the removal of the element, allows the recycle materials that in many cases are considered as wastes. The present chapter reviewed the most recent proposals (2022 year) about the use of biosorbents in the removal of this toxic element. Arsenic, either in (III) or (V) oxidation states forms, is a hazardous elements to humans, thus its removal from aqueous environments is of the utmost priority in the countries where this problem arises. From the various separation technologies, the removal f arsenic via biosorption processing attracted an interest, because besides the removal of the element, allows the recycle materials that in many cases are considered as wastes. The present chapter reviewed the most recent proposals (2022 year) about the use of biosorbents in the removal of this toxic element.

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“…Studies have reported that with the increase in pH, the heavy metal uptake capacity of microorganisms increases but within a specific limit. Beyond this limit, the removal rate starts to decrease 34 . With the gradual increase in pH (metal ion concentration being constant at 300 µg mL −1 ), there was a gradual decline in bacterial growth.…”

Section: Effect Of Ph and As On The Bacterial Strainsmentioning

confidence: 96%

Isolation, characterization, identification, genomics and analyses of bioaccumulation and biosorption potential of two arsenic-resistant bacteria obtained from natural environments

Roy,

Saha,

Adhikary

et al. 2024

Sci Rep

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Arsenic (As) is a significant contaminant whose unrestrained entrance into different ecosystems has created global concern. At the cellular level, As forms unsteady intermediates with genetic materials and perturbs different metabolic processes and proper folding of proteins. This study was the first in this region to explore, isolate, screen systematically, and intensively characterize potent As-tolerant bacterial strains from natural environments near Raiganj town of Uttar Dinajpur, West Bengal. In this study, two potent Gram-negative bacterial strains with high tolerance to the poisonous form of As, i.e., As(III) and As(V), were obtained. Both the isolates were identified using biochemical tests and 16S rRNA gene sequencing. These bacteria oxidized toxic As(III) into less poisonous As(V) and depicted tolerance towards other heavy metals. Comparative metabolic profiling of the isolates in control and As-exposed conditions through Fourier-transform infrared spectroscopy showed metabolic adjustments to cope with As toxicity. The metal removal efficiency of the isolates at different pH showed that one of the isolates, KG1D, could remove As efficiently irrespective of changes in the media pH. In contrast, the efficiency of metal removal by PF14 was largely pH-dependent. The cell mass of both the isolates was also found to favourably adsorb As(III). Whole genome sequence analysis of the isolates depicted the presence of the arsRBC genes of the arsenic operon conferring resistance to As. Owing to their As(III) oxidizing potential, high As bioaccumulation, and tolerance to other heavy metals, these bacteria could be used to bioremediate and reclaim As-contaminated sites.

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Adsorptive recovery of arsenic (III) ions from aqueous solutions using dried Chlamydomonas sp.

Cited by 11 publications

References 57 publications

Biosorption of arsenic (III) from aqueous solution using calcium alginate immobilized dead biomass of Acinetobacter sp. strain Sp2b

Biosorption of arsenic (III) from aqueous solution using calcium alginate immobilized dead biomass of Acinetobacter sp. strain Sp2b

Arsenic and Biosorption

Isolation, characterization, identification, genomics and analyses of bioaccumulation and biosorption potential of two arsenic-resistant bacteria obtained from natural environments

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