Biosorption optimization, characterization, immobilization and application of Gelidium amansii biomass for complete Pb2+ removal from aqueous solutions

El‐Naggar, Noura El‐Ahmady; Hamouda, Ragaa A.; Mousa, Ibrahim E.; Abdel-Hamid, Marwa Salah; Rabei, Nashwa H.

doi:10.1038/s41598-018-31660-7

Cited by 96 publications

(56 citation statements)

References 96 publications

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“…Hence, pH 4.5 was taken as an optimum in our studies to attain the highest biosorption capacity assuming that the functional groups are deprotonated and attained a negative charge for binding of positive metal ions. Also, many studies reported that biosorption is meaningless at higher pH due to the occurrence of metal hydroxides causing difficulty in concluding whether the decrease in metal concentration was due to lowered biosorption or precipitation (El-Naggar et al 2018).…”

Section: Resultsmentioning

confidence: 99%

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Structural Changes of Bacillus subtilis Biomass on Biosorption of Iron (II) from Aqueous Solutions: Isotherm and Kinetic Studies

Kanamarlapudi

Muddada

2019

Polish Journal of Microbiology

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Various microbial biomasses have been employed as biosorbents. Bacterial biomass has added advantages because of easy in production at a low cost. The study investigated the biosorption of iron from aqueous solutions by Bacillus subtilis. An optimum biosorption capacity of 7.25 mg of the metal per gram of the biosorbent was obtained by the Inductive Coupled Plasma Optical Emission Spectroscopy (ICP-OES) under the experimental conditions of initial metal concentration of 100 mg/l, pH 4.5, and biomass dose of 1 g/l at 30°C for 24 hrs. The data showed the best fit with the Freundlich isotherm model while following pseudo-first-order kinetics. Scanning Electron Microscope (SEM) and Energy Dispersive X-ray (EDX) analysis confirmed iron biosorption as precipitates on the bacterial surface, and as a peak in the EDX spectrum. The functional hydroxyl, carboxyl, and amino groups that are involved in biosorption were revealed by the Fourier Transform Infrared spectroscopy (FTIR). The amorphous nature of the biosorbent for biosorption was indicated by the X-ray Diffraction (XRD) analysis. The biomass of B. subtilis exhibited a point zero charge (pHpzc) at 2.0.

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Section: Resultsmentioning

confidence: 99%

“…Studies were done using microbial biomass (algae, bacteria, and fungi) as biosorbent for remediation of metal ions from polluted water resources. The biosorption process relies on nature and biosorbent type, and metal species to be biosorbed (El-Naggar et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Structural Changes of Bacillus subtilis Biomass on Biosorption of Iron (II) from Aqueous Solutions: Isotherm and Kinetic Studies

Kanamarlapudi

Muddada

2019

Polish Journal of Microbiology

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“…This result is in accordance with the results reported by dos Reis et al 25 , where maximum accumulation of Fe 3+ by Bacillus subtilis UFLA SCF590 was attributed to the effect of lower pH value of 3.5 with high concentration of Fe 3+ (0.75 ppm). Furthermore, the results obtained by El-Naggar et al 26 showed that the biosorption of Pb 2+ by the marine red alga, Gelidium amansii, reached its maximum with the increase in initial Pb 2+ concentration up to 200 mg/l, beyond which biosorption gradually decreased. On the contrary, Choińska-Pulita et al 27 reported that the efficiency of Cd 2+ and Zn 2+ biosorption by Pseudomonas azotoformans JAW1 is inversely proportional to initial metal concentration, which could be explained by the insufficient metal binding sites on microbial biomass.…”

Section: Bioaccumulation Of Ni 2+ and Cr 2+ By L Plantarum Mf042018mentioning

confidence: 97%

Assessment of the heavy metal bioremediation efficiency of the novel marine lactic acid bacterium, Lactobacillus plantarum MF042018

Ameen

Hamdan

El-Naggar

2020

Sci Rep

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Heavy metal pollution is one of the most serious environmental and human health risk problem associated with industrial progress. The present study was conducted with the goal of isolation and characterization of metal-resistant lactic acid bacteria (LAB) from the Alexandrian Mediterranean Seacoast, Egypt, with their possible exploitation in metal remediation. Lactobacillus plantarum MF042018 exhibited high degree of resistance, up to 500 and 100 ppm, to both nickel and chromium, respectively, with multiple antibiotic resistance (MAR) index above 0.5. In an attempt to improve chromium removal by L. plantarum MF042018, Plackett-Burman followed by Box-Behnken statistical designs were applied. An initial Cr 2+ concentration of 100 ppm and inoculum size of 3% presented the best conditions for the accumulation of chromium by L. plantarum MF042018. The study was also navigated to assess the biosorption capacity of L. plantarum MF042018, the maximum uptake capacity (q) of both Cd 2+ and pb 2+ was recorded at pH 2.0 and a temperature of 22 °C after 1 hr. The biosorption process of Cd 2+ and pb 2+ was well explained by the Langmuir isotherm model better than the Freundlich isotherm. Furthermore, the results revealed that the use of L. plantarum MF042018 is an effective tool for the treatment of hazardous metal-polluted battery-manufacturing effluent. Therefore, the present study implies that L. plantarum MF042018 can be applied as a promising biosorbent for the removal of heavy metals from industrial wasterwaters. As a consequence of disastrous anthropogenic activities, the discharge of hazardous heavy metal pose devastating threat to environmental safety and subsequently lead to severe concerns on human health worldwide 1. Nowadays, several approaches have been successfully developed to use magnetic nanoparticles (MNPs), such as magnetic chitosan/graphene oxide (MCGO) composite, and ultrasonic irradiation for the synthesis of metal organic frameworks (MOFs) for the removal of heavy metals from contaminated environments 2,3. In this context, the expansion of new technologies has led to the evolution of "Bioremediation" as a powerful alternative tool to reduce the adverse consequences of the tremendous accumulation of heavy metals 4. Bioremediation; using bacteria, fungi, yeast and algae, is an efficient, cost-effective and environmentally friendly strategy that has recently received great attention to tackle heavy metal contamination 5. Recently, the use of microorganisms especially fungi as potential biosorbents for the removal of heavy metals from industrial wastewater effluents has been extensively investigated 6-8. Lactic acid bacteria (LAB) are Gram-positive bacteria, that have gained Generally Recognized As Safe (GRAS) status by the US Food and Drug Administration (FDA) and have a strong record of safe application as probiotic supplements 9. Recently, several strains of LAB have generated much attention to their potential use in the removal of heavy metals for protection of human health 10-13. A considerable number ...

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“…After obtaining the biomass, a stock solution of 100 mg/L of uranium nitrate was prepared, the pH of the solution was adjusted to 3. analysis. 30,31 All tests were performed in triplicate. SEM analysis was performed with a JEOL ® model 6460LV and ED-XRF uses a portable Amptek ® setup composed with a mini X-ray tube (silver [Ag] target) and a Si Drift X-ray semiconductor detector (25mm 2 × 500 μm 0.5 mil −1 ) with a thin beryllium end window of 3.8 cm and energy resolution of 125 eV FWHM at @ 5.9 keV (55Fe).…”

Section: Biomass Contact With Uraniummentioning

confidence: 99%

Bioremediation of water contaminated with uranium using Penicillium piscarium

Coelho

Reis

Cotrim

et al. 2020

Biotechnology Progress

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Penicillium piscarium can be indicated as promising in the treatment of sites contaminated with uranium. Thus, this research aimed to analyze the P. piscarium dead biomass in uranium biosorption. This fungus was previously isolated from a highly contaminated uranium mine located in Brazil. Biosorption tests were carried out at pH 3.5 and 5.5 in solutions contaminated with concentrations of 1 to 100 mg/L of uranium nitrate. Our results showed that the dead biomass of P. piscarium was able to remove between 93.2 and 97.5% uranium from solutions at pH 3.5, at the end of the experiment, the pH of the solution increased to values above 5.6. Regarding the experiments carried out in solutions with pH 5.5, the dead biomass of the fungus was also able to remove between 38 and 92% uranium from the solution, at the end of the experiment, the pH of the solution increased to levels above 6.5. The analysis of electron microscopy, Energy-dispersive spectroscopy, and X-ray fluorescence demonstrated the high concentration of uranium precipitated on the surface of the fungal biomass. These results were impressive and demonstrate that the dead biomass of P. piscarium can be an important alternative to conventional processes for treating water contaminated with heavy metals, and we hope that these ecofriendly, inexpensive, and effective technologies be encouraged for the safe discharge of water from industrial activities.

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Biosorption optimization, characterization, immobilization and application of Gelidium amansii biomass for complete Pb2+ removal from aqueous solutions

Cited by 96 publications

References 96 publications

Structural Changes of Bacillus subtilis Biomass on Biosorption of Iron (II) from Aqueous Solutions: Isotherm and Kinetic Studies

Structural Changes of Bacillus subtilis Biomass on Biosorption of Iron (II) from Aqueous Solutions: Isotherm and Kinetic Studies

Assessment of the heavy metal bioremediation efficiency of the novel marine lactic acid bacterium, Lactobacillus plantarum MF042018

Bioremediation of water contaminated with uranium using Penicillium piscarium

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