Innovative optimization for maximum magnetic nanoparticles production by Trichoderma asperellum with evaluation of their antibacterial activity, and application in sustainable dye decolorization

El-Sharkawy, Reyad M.; Khairy, Mohamed; Zaki, Magdi E.A.; Abbas, Mohamed H.H.

doi:10.1016/j.eti.2024.103660

Environmental Technology & Innovation

2024

DOI: 10.1016/j.eti.2024.103660

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Innovative optimization for maximum magnetic nanoparticles production by Trichoderma asperellum with evaluation of their antibacterial activity, and application in sustainable dye decolorization

Reyad M. El-Sharkawy,

Mohamed Khairy,

Magdi E.A. Zaki

et al.

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Innovative optimization for enhancing Pb2+ biosorption from aqueous solutions using Bacillus subtilis

El-Sharkawy,

Khairy,

Abbas

et al. 2024

Front. Microbiol.

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IntroductionToxic heavy metal pollution has been considered a major ecosystem pollution source. Unceasing or rare performance of Pb2+ to the surrounding environment causes damage to the kidney, nervous, and liver systems. Microbial remediation has acquired prominence in recent decades due to its high efficiency, environment-friendliness, and cost-effectiveness.MethodsThe lead biosorption by Bacillus subtilis was optimized by two successive paradigms, namely, a definitive screening design (DSD) and an artificial neural network (ANN), to maximize the sorption process.ResultsFive physicochemical variables showed a significant influence (p < 0.05) on the Pb2+ biosorption with optimal levels of pH 6.1, temperature 30°C, glucose 1.5%, yeast extract 1.7%, and MgSO4.7H2O 0.2, resulting in a 96.12% removal rate. The Pb2+ biosorption mechanism using B. subtilis biomass was investigated by performing several analyses before and after Pb2+ biosorption. The maximum Pb2+ biosorption capacity of B. subtilis was 61.8 mg/g at a 0.3 g biosorbent dose, pH 6.0, temperature 30°C, and contact time 60 min. Langmuir’s isotherm and pseudo-second-order model with R2 of 0.991 and 0.999 were suitable for the biosorption data, predicting a monolayer adsorption and chemisorption mechanism, respectively.DiscussionThe outcome of the present research seems to be a first attempt to apply intelligence paradigms in the optimization of low-cost Pb2+ biosorption using B. subtilis biomass, justifying their promising application for enhancing the removal efficiency of heavy metal ions using biosorbents from contaminated aqueous systems.

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Innovative optimization for enhancing Pb2+ biosorption from aqueous solutions using Bacillus subtilis

El-Sharkawy,

Khairy,

Abbas

et al. 2024

Front. Microbiol.

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show abstract

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Innovative optimization for maximum magnetic nanoparticles production by Trichoderma asperellum with evaluation of their antibacterial activity, and application in sustainable dye decolorization

Cited by 1 publication

References 54 publications

Innovative optimization for enhancing Pb2+ biosorption from aqueous solutions using Bacillus subtilis

Innovative optimization for enhancing Pb2+ biosorption from aqueous solutions using Bacillus subtilis

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