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<p>With continuous exacerbation of industrialization, the environment is prone to dramatic imbalance, which eventually menaces the public health. Therefore, the current study quested for remediating Cr(III) using self-immobilized fungal pellets hybridized with indigenously-fabricated SeNPs. Firstly, the effluent from potato chips processing was utilized as economic nutriment for the production of fungal-SeNPs hybrid system. This novel composites promoted the removal of Cr(III) by 58 ± 3.31% comparing to 41.2 ± 2.17% implemented by fungal-pellets. Characterization analysis by SEM, EDX, and FTIR emphasized the porous architecture and functional groups that all contributed chiefly to the biosorption process. The statistical optimization approach deduced that 2.15&#xa0;g L<sup>-1</sup> of fungal-SeNPs-composites eliminated 92.7 ± 1.8% of Cr(III) (270&#xa0;mg L<sup>-1</sup>) at an initial pH of 4.8 within 1&#xa0;h, resulting 1.57-fold enhancement. Thereafter, the microtoxicity of remediated solution declared the marginal prohibition in the growth patterns of <i>Escherichia coli</i>,<i> Bacillus cereus</i> and <i>Candida albicans</i> ranging from 0.9% to 5.57%. However, the cytotoxicity underscored the viability of Wi-38 and Vero cells by 92.17 ± 0.78 and 97.08 ± 0.24%, respectively. Meanwhile, the adsorption process was well-fitted with Fractional Power model followed by the Intra-Particle Diffusion and Elovich models, which denoted that the adsorption process was predominantly governed by chemisorption. Strikingly, fungal-SeNPs-composites succeeded in significantly remediating 90.3 ± 3.5, 80.4 ± 2.7, 77.5 ± 2.3 and 71.6 ± 1.8% of Cr(III) from fresh water, municipal discharge, industrial effluent and seawater-artificially inoculated with Cr(III), respectively; reflecting the leverage of water type and quality (i.e., physicochemical/biological contents) on the remediation potency. Accordingly, this study unveiled the promising performance of self-immobilized-SeNPs biomixture as an eco-friendly, sustainable, frugal and proficient adsorptive material.</p>

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A novel platform of self-immobilized Aspergillus flavus with selenium nanoparticles biomixture for enhanced Cr removal: economic production, characterization, optimization, kinetic study, cytotoxicity evaluation and application in wastewater treatment

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  • 发表日期：

    2026年5月20日

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  • Marwa Eltarahony,
  • Marwa Abu‑Serie,
  • Eman H. El-Gamal,
  • Hadeel El-Shall

摘要

With continuous exacerbation of industrialization, the environment is prone to dramatic imbalance, which eventually menaces the public health. Therefore, the current study quested for remediating Cr(III) using self-immobilized fungal pellets hybridized with indigenously-fabricated SeNPs. Firstly, the effluent from potato chips processing was utilized as economic nutriment for the production of fungal-SeNPs hybrid system. This novel composites promoted the removal of Cr(III) by 58 ± 3.31% comparing to 41.2 ± 2.17% implemented by fungal-pellets. Characterization analysis by SEM, EDX, and FTIR emphasized the porous architecture and functional groups that all contributed chiefly to the biosorption process. The statistical optimization approach deduced that 2.15 g L-1 of fungal-SeNPs-composites eliminated 92.7 ± 1.8% of Cr(III) (270 mg L-1) at an initial pH of 4.8 within 1 h, resulting 1.57-fold enhancement. Thereafter, the microtoxicity of remediated solution declared the marginal prohibition in the growth patterns of Escherichia coli, Bacillus cereus and Candida albicans ranging from 0.9% to 5.57%. However, the cytotoxicity underscored the viability of Wi-38 and Vero cells by 92.17 ± 0.78 and 97.08 ± 0.24%, respectively. Meanwhile, the adsorption process was well-fitted with Fractional Power model followed by the Intra-Particle Diffusion and Elovich models, which denoted that the adsorption process was predominantly governed by chemisorption. Strikingly, fungal-SeNPs-composites succeeded in significantly remediating 90.3 ± 3.5, 80.4 ± 2.7, 77.5 ± 2.3 and 71.6 ± 1.8% of Cr(III) from fresh water, municipal discharge, industrial effluent and seawater-artificially inoculated with Cr(III), respectively; reflecting the leverage of water type and quality (i.e., physicochemical/biological contents) on the remediation potency. Accordingly, this study unveiled the promising performance of self-immobilized-SeNPs biomixture as an eco-friendly, sustainable, frugal and proficient adsorptive material.