Biosorption of Mercury (II) from Aqueous Solutions onto Fungal Biomass

Juárez, Víctor Manuel Martínez; González, Juan Fernando Cárdenas; Torre-Bouscoulet, María Eugenia; Rodríguez, Ismael Acosta

doi:10.1155/2012/156190

Cited by 48 publications

(17 citation statements)

References 27 publications

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“…An increase in the pH also causes deprotonation of metal ion binding sites, allowing an exchange of H + with the metal ions in the solution, favoring the binding of cations. In line with our results, maximum biosorption by Aspergillus versicolor , Rhizopus oligosporus , Penicillium purpurogenum , was obtained at pH 6.0 and decreased above pH 6.0 as previously reported by Martínez-Juárez et al [ 20 ] but maximum values of metal ions removal by fungi like Penicillium resedanum , Aspergillus wentii , Alternaria alternata , and Eupenicillium katangense were achieved at pH between 5–8.6 [ 2 6 21 ]. Conversely, the acidic pH 2.0 to 4.5 was found to be optimal for biosorption of uranium (VI), cadmium, copper, lead, Fe +3 and Mn +2 ions by Fusarium sp.…”

Section: Resultssupporting

confidence: 92%

Heavy Metals Biosorption from Aqueous Solution by Endophytic Drechslera hawaiiensis of Morus alba L. Derived from Heavy Metals Habitats

El-Gendy

Hassanein

Ibrahim³

et al. 2017

Mycobiology

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The ability of dead cells of endophytic Drechslera hawaiiensis of Morus alba L. grown in heavy metals habitats for bioremoval of cadmium (Cd2+), copper (Cu2+), and lead (Pb2+) in aqueous solution was evaluated under different conditions. Whereas the highest extent of Cd2+ and Cu2+ removal and uptake occurred at pH 8 as well as Pb2+ occurred at neutral pH (6–7) after equilibrium time 10 min. Initial concentration 30 mg/L of Cd2+ for 10 min contact time and 50 to 90 mg/L of Pb2+ and Cu2+ supported the highest biosorption after optimal contact time of 30 min achieved with biomass dose equal to 5 mg of dried died biomass of D. hawaiiensis. The maximum removal of Cd2+, Cu2+, and Pb2+ equal to 100%, 100%, and 99.6% with uptake capacity estimated to be 0.28, 2.33, and 9.63 mg/g from real industrial wastewater, respectively were achieved within 3 hr contact time at pH 7.0, 7.0, and 6.0, respectively by using the dead biomass of D. hawaiiensis compared to 94.7%, 98%, and 99.26% removal with uptake equal to 0.264, 2.3, and 9.58 mg/g of Cd2+, Cu2+, and Pb2+, respectively with the living cells of the strain under the same conditions. The biosorbent was analyzed by Fourier Transformer Infrared Spectroscopy (FT-IR) analysis to identify the various functional groups contributing in the sorption process. From FT-IR spectra analysis, hydroxyl and amides were the major functional groups contributed in biosorption process. It was concluded that endophytic D. hawaiiensis biomass can be used potentially as biosorbent for removing Cd2+, Cu2+, and Pb2+ in aqueous solutions.

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Section: Resultssupporting

confidence: 92%

Heavy Metals Biosorption from Aqueous Solution by Endophytic Drechslera hawaiiensis of Morus alba L. Derived from Heavy Metals Habitats

El-Gendy

Hassanein

Ibrahim³

et al. 2017

Mycobiology

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“…The main examined parameters that may impact metal sorption were pH, contact time at 0.1g biosorbent, weight of P. digitatum, and temperature (30 °C) [12,13,14].…”

Section: Factors Affecting Heavy Metal Biosorption From the Aqueous Smentioning

confidence: 99%

“…It was clear that the establishment of time dependence on the metal removal for maximizing the rate of these metals by biosorbent uptake during equilibrium. The time at which no further metals removal could be attained was considered as the optimum contact time [13].…”

Section: 232effects Of Contact Timementioning

confidence: 99%

Biosorption of Lead and Chromium Ions by Using Penicillium digitatum (Pers.) Sacc. from Industrial Water

Hussain

Khazaal

Hatif

2020

eijs

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Some microorganisms, including fungi, are characterized by their removal efficiency and reducing the concentrations of heavy metals such as Pb and Cr from industrial water. The present study aims to estimate the efficiency of Penicillium digitatum (Pers.) Sacc. as a low-cost biosorbent in reducing Pb and Cr from industrial water with optimum biosorption conditions (acidity of 1.5 , 4, and 5; temperature of 30 °C). The Fourier transform infrared spectroscopy (FTIR) analysis was also used for determining the roles of the functional groups in this biosorbent. The results indicated that the highest P. digitatum efficiency values for reducing the levels of Pb and Cr were 84% and 70% , respectively, at pH of 5 after 24 h. However, this efficiency was decreased from 81% to76% at pH values of 4 and 1.5, respectively, for Pb. The removal efficiency for Cr was 56% at pH of 4 after 1h. at 30 °C. Also, the FTIR spectra illustrated -CH, -C-N, N-H, and =CO peaks of functional groups that may change as a result of their involvement in the adsorption process of lead and chromium.

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“…Recently, varieties of low cost materials have been studied for their ability to removal Hg (II) from aqueous solution and promising results are shown. Among these low cost adsorbents are dead microorganisms, clay minerals, agricultural wastes, industrial wastes and various other low cost materials (Alimohammadi et al, 2017;Duygu Ozsoy, 2010;Hoque and Fritscher, 2016;Martínez-Juárez et al, 2012;Shekhawat et al, 2017;Stefanescu et al, 2017;Tejada Tovar et al, 2015). Thus, there is a need to develop or find innovative low cost adsorbents with an affinity towards metal ions for the removal of Hg (II) from aqueous solution, which leads to high adsorption capacity (Caviedes Rubio et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Biosorption of mercury (II) from aqueous solution onto biomass of Aspergillus niger

et al. 2018

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Mercury (II) removal capacity in aqueous solution by Aspergillus niger biomass was analyzed by the atomic absorption spectrometry method. The fungus grew in 2000 ppm of the metal (20.3%). Biosorption was evaluated at different pH (3.5, 4.5, and 5.5) at different times. In addition, the effect of temperature in the range of 28°C to 45oC and removal at different initial concentrations of Hg (II) from 100 to 500 mg/L were also studied. The highest biosorption (83.2% with 100 mg/L of the metal, and 1 g of biomass) was 24 h at pH of 5.5 and 28oC. With regard to temperature, the highest removal was to 28oC, with an 83.2% removal at 24 h, and at higher biomass concentrations, the removal was most efficient (100% in 12 h with 5 g of biomass). Fungal biomass showed good removal capacity of the metal in situ, 69% removal in contaminated water, after 7 days of incubation and 5 g of biomass (100 mL water), so it can be used to remove industrial wastewater.

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Biosorption of Mercury (II) from Aqueous Solutions onto Fungal Biomass

Cited by 48 publications

References 27 publications

Heavy Metals Biosorption from Aqueous Solution by Endophytic Drechslera hawaiiensis of Morus alba L. Derived from Heavy Metals Habitats

Heavy Metals Biosorption from Aqueous Solution by Endophytic Drechslera hawaiiensis of Morus alba L. Derived from Heavy Metals Habitats

Biosorption of Lead and Chromium Ions by Using Penicillium digitatum (Pers.) Sacc. from Industrial Water

Biosorption of mercury (II) from aqueous solution onto biomass of Aspergillus niger

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