Optimization of heavy metal (lead) remedial activities of fungi Aspergillus penicillioides (F12) through extra cellular polymeric substances

Paria, Kishalay; Pyne, Smritikana; Chakraborty, Susanta Kumar

doi:10.1016/j.chemosphere.2021.131874

Cited by 30 publications

(7 citation statements)

References 48 publications

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“…Besides, it was also observed that the intracellular accumulation of toxic metals in fungi vacuole, played an essential role for both resistance and detoxification of PTEs (Hassan et al, 2020;Muneer et al, 2016). Furthermore, a native fungal isolate, Aspergillus flavus has been reported with 74% of Cr removal (Huang et al, 2022) while Aspergillus penicillioides has recorded to remove up to 73% of Pb from contaminated wastewater (Paria et al, 2022) (see Table 2) .…”

Section: Mycoremediationmentioning

confidence: 99%

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

Zulkernain

Uvarajan

2023

Journal of Environmental Management

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Section: Mycoremediationmentioning

confidence: 99%

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

Zulkernain

Uvarajan

2023

Journal of Environmental Management

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“…Mycelium, the root network of mushrooms, has been hailed as nature's best toxicant adsorbent and has been shown to contribute actively to heavy metal remediation. 14,15 Fungi can initiate biological processes that convert organic complexes and oxidation states of heavy metals into less toxic or more stable forms, 15,16 significantly lowering their bioavailability. Heavy metal capture by live fungi involves complex mechanisms, including biosorption, bioaccumulation, and biotransformation.…”

Section: ■ Introductionmentioning

confidence: 99%

“…More recently, bioremediation is being explored as a sustainable, nonhazardous remediation approach, utilizing a range of microorganisms, including fungi , to detoxify heavy metals from natural environments. Mycelium, the root network of mushrooms, has been hailed as nature’s best toxicant adsorbent and has been shown to contribute actively to heavy metal remediation. , Fungi can initiate biological processes that convert organic complexes and oxidation states of heavy metals into less toxic or more stable forms, , significantly lowering their bioavailability.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Remediation by Dry Mycelium Membranes: Approaches to Sustainable Lead Remediation in Water

Parasnis,

Deng,

Yuan

et al. 2024

Langmuir

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Lead contamination poses significant and lasting health risks, particularly in children. This study explores the efficacy of dried mycelium membranes, distinct from live fungal biomass, for the remediation of lead (Pb(II)) in water. Dried mycelium offers unique advantages, including environmental resilience, ease of handling, biodegradability, and mechanical reliability. The study explores Pb(II) removal mechanisms through sorption and mineralization by dried mycelium hyphae in aqueous solutions. The sorption isotherm studies reveal a high Pb(II) removal efficiency, exceeding 95% for concentrations below 1000 ppm and ∼63% above 1500 ppm, primarily driven by electrostatic interactions. The measured infrared peak shifts and the pseudosecond-order kinetics for sorption suggests a correlation between sorption capacity and the density of interacting functional groups. The study also explores novel surface functionalization of the mycelium network with phosphate to enhance Pb(II) removal, which enables remediation efficiencies >95% for concentrations above 1500 ppm. Scanning electron microscopy images show a pH-dependent formation of Pb-based crystals uniformly deposited throughout the entire mycelium network. Continuous cross-flow filtration tests employing a dried mycelium membrane demonstrate its efficacy as a microporous membrane for Pb(II) removal, reaching remediation efficiency of 85−90% at the highest Pb(II) concentrations. These findings suggest that dried mycelium membranes can be a viable alternative to synthetic membranes in heavy metal remediation, with potential environmental and water treatment applications.

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“…In dematiaceous hyphomycetes, Cladosporium is the largest of the genera, and its species have been described as being among the most common fungi in both indoor and outdoor environments (Becchimanzi et al 2021 ; El-Gendy et al 2017b ). Previous works proved that the dead fungal biomass could be an efficient option to reduce various toxic compounds and heavy metals from industrial wastewater with great adsorption capacity because it's big specific external area and effective surface interaction along with its ability endure temperature difference (Paria et al 2022 ; Ab Rhaman et al 2022 ). Hence, the goal of this search was to investigation the potential applies of dead fungal biomass as adsorbent for Pb 2+ , Ni 2+ , Mn 2+ , and Zn 2+ from aqueous solutions, optimization of the batch adsorption operating conditions under multi-metals system including pH, adsorption time, biomass dosage and initial metals ions concentration.…”

Section: Introductionmentioning

confidence: 99%

Bioremoval of heavy metals from aqueous solution using dead biomass of indigenous fungi derived from fertilizer industry effluents: isotherm models evaluation and batch optimization

et al. 2023

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The present work investigated the utilization of dead biomass of the highly multi-heavy metals tolerant indigenous fungal strain NRCA8 isolated from the mycobiome of fertilizer industry effluents that containing multiple heavy metal ions at high levels to remove Pb2+, Ni2+, Zn2+, and Mn2+ as multiple solutes from multi-metals aqueous solutions for the first time. Based on morphotype, lipotype and genotype characteristics, NRCA8 was identified as Cladosporium sp. NRCA8. The optimal conditions for the bioremoval procedure in the batch system were pH 5.5 for maximum removal (91.30%, 43.25%, and 41.50%) of Pb2+, Zn2+ and Mn2+ but pH 6.0 supported the maximum bioremoval and uptake of Ni2+ (51.60% and 2.42 mg/g) by NRCA8 dead biomass from the multi-metals aqueous solution, respectively. The 30 min run time supported the highest removal efficiency and uptake capacity of all heavy metals under study. Moreover, the equilibrium between the sorbent NRCA8 fungal biomass and sorbates Ni2+, Pb2+ and Zn2+ was attained after increasing the dead biomass dose to 5.0 g/L. Dead NRCA8 biomass was described by scanning electron microscopy, energy-dispersive X-ray spectroscopy and Fourier transform infrared spectrometer before and after biosorption of Pb2+, Ni2+, Zn2+ and Mn2+ under multiple metals system. The Langmuir, Freundlich and Dubinin-Kaganer-Radushkevich isotherms were applied to characterize the adsorption equilibrium between Pb2+, Ni2+, Mn2+ and Zn2+ and the adsorbent NRCA8. By comparing the obtained coefficient of regression (R2) by Freundlich (0.997, 0.723, 0.999, and 0.917), Langmiur (0.974, 0.999, 0.974, and 0.911) and Dubinin-Radushkevich (0.9995, 0.756, 0.9996 and 0.900) isotherms values for Pb2+, Zn2+, Ni2+ and Mn2+ adsorption, respectively, it was found that the isotherms are proper in their own merits in characterization the possible of NRCA8 for removal of Pb2+, Zn2+, Ni2+ and Mn2+. DKR isotherm is the best for Pb2+ and Ni2+ (0.9995 and 0.9996) while Langmiur isotherm giving a good fit to the Zn2+ sorption (0.9990) as well as Freundlich isotherm giving a good fit to the Mn2+ sorption (0.9170). The efficiencies of Cladosporium sp. NRCA8 dead biomass for bioremoval of heavy metals from real wastewater under the optimized conditions were Pb2+, Ag+, Mn2+, Zn2+ and Al3+ ˃ Ni2+ ˃ Cr6+ ˃ Co2+ ˃ Fe3+ ˃ Cu2+ ˃ Cd2+. Dead NRCA8 biomass showed efficient ability to adsorb and reduce harmful components in the industrial effluents to a level acceptable for discharge into the environment.

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Optimization of heavy metal (lead) remedial activities of fungi Aspergillus penicillioides (F12) through extra cellular polymeric substances

Cited by 30 publications

References 48 publications

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

Heavy Metal Remediation by Dry Mycelium Membranes: Approaches to Sustainable Lead Remediation in Water

Bioremoval of heavy metals from aqueous solution using dead biomass of indigenous fungi derived from fertilizer industry effluents: isotherm models evaluation and batch optimization

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