Evaluation of the potential of microalgae Microcystis novacekii in the removal of Pb2+ from an aqueous medium

Ribeiro, Rita F.L.; Magalhães, Sérgia Maria Starling; Barbosa, Francisco A. R.; Nascentes, Clésia C.; Campos, Iara Christina de; Moraes, Débora Chaves

doi:10.1016/j.jhazmat.2010.03.097

Cited by 39 publications

(10 citation statements)

References 52 publications

(107 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For this motive, many techniques for environmental remediation of heavy metals are being studied (Ofer et al, 2003;Bayramoğlu et al, 2006;Rai, 2008Rai, , 2010Rawat et al, 2011). Lead being one of the "big three" toxic heavy metals because it is rapidly accumulated by organisms including fish (Ribeiro et al, 2010) and becomes concentrated throughout the food chain to humans (ATS-DR, 2001;Crist et al, 1992).…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of iron oxide (Fe3O4) nanoparticles using two selected brown seaweeds: Characterization and application for lead bioremediation

2016

View full text Add to dashboard Cite

The exploitation of different plant materials for the biosynthesis of nanoparticles is considered a green technology because it does not involve any harmful chemicals. In this study, iron oxide nanoparticles (Fe 3 O 4 -NPs) were synthesized using a completely green biosynthetic method by reduction of ferric chloride solution using brown seaweed water extracts. The two seaweeds Padina pavonica (Linnaeus) Thivy and Sargassum acinarium (Linnaeus) Setchell 1933 were used in this study. The algae extract was used as a reductant of FeCl 3 resulting in the phytosynthesis of Fe 3 O 4 -NPs. The phytogenic Fe 3 O 4 -NPs were characterized by surface plasmon band observed close to 402 nm and 415 nm; the obtained Fe 3 O 4 -NPs are in the particle sizes ranged from 10 to 19.5 nm and 21.6 to 27.4 nm for P. pavonica and S. acinarium, respectively. The strong signals of iron were reported in their corresponding EDX spectra. FTIR analyses revealed that sulphated polysaccharides are the main biomolecules in the algae extracts that do dual function of reducing the FeCl 3 and stabilizing the phytogenic Fe 3 O 4 -NPs. The biosynthesized Fe 3 O 4 -NPs were entrapped in calcium alginates beads and used in Pb adsorption experiments. The biosynthesized Fe 3 O 4 -NPs alginate beads via P. pavonica (Linnaeus) Thivy had high capacity for bioremoval of Pb (91%) while that of S. acinarium (Linnaeus) Setchell 1933 had a capacity of (78%) after 75 min. The values of the process parameters for the maximum Pb removal efficiency by Fe 3 O 4 -NPs alginate beads synthesized via P. pavonica (Linnaeus) Thivy were also estimated.Citation: El-Kassas Hala Y, Aly-Eldeen Mohamed A, Gharib Samiha M. 2016. Green synthesis of iron oxide (Fe 3 O 4 ) nanoparticles using two selected brown seaweeds: Characterization and application for lead bioremediation. Acta Oceanologica Sinica,

show abstract

Section: Introductionmentioning

confidence: 99%

Green synthesis of iron oxide (Fe3O4) nanoparticles using two selected brown seaweeds: Characterization and application for lead bioremediation

2016

View full text Add to dashboard Cite

show abstract

“…The peak at 1,081 cm −1 is assigned to C-O stretching vibration of sugar. The peak at 1,057 cm −1 is associated with different stretching vibrations of C-O bonds of the cyclic structure of polysaccharides [28]. After adsorption of Pb (II) and Zn (II), the bands corresponded to hydroxyl or amino red shifted to 3,290 and 3,289 cm −1 , the peak at 1,725 cm −1 disappeared or weakened.…”

Section: Adsorption Kineticsmentioning

confidence: 96%

Biosorption of Pb(II) and Zn(II) from aqueous solutions by living B350 biomass

Qu¹,

Meng

Zhao

et al. 2014

Desalination and Water Treatment

View full text Add to dashboard Cite

A B S T R A C TBeneficiation production wastewater is a kind of wastewater generated from exploiting minerals, where the main pollutants are heavy metals and organic agents. In this study, living B350 biomass (a mixture of various micro-organisms) was used to remove Pb(II) and Zn(II) from aqueous solutions. The effects of pH, biomass dosage and contact time on removal ratios of Pb(II) and Zn(II) were studied. Two kinetic models, pseudo-first-order and pseudo-secondorder, were used to fit the experimental results. The chemical changes of B350 biomass before and after adsorption were monitored by Energy Dispersion X-ray (EDX) spectroscopy and Fourier Transform Infrared (FTIR) spectroscopy. In addition, the feasibility of B350 to remove heavy metals and m-cresol simultaneously was investigated. The results showed that the removal ratios of heavy metals increased with increasing dosage of biosorbent. When B350 dosage was 1.0 g/L, 84.88% of Pb(II) and 38.06% of Zn(II) can be removed after 2 h of adsorption at 25˚C. The adsorption of Pb(II) and Zn(II) on B350 was coincident with Langmuir and Freundlich isotherms, respectively. Pseudo-second-order model can best describe the adsorption process. EDX and FTIR results indicated that ion exchange and complexation might exist during the adsorption of Pb(II) and Zn(II). The living B350 biomass can not only adsorb heavy metal ions, but also biodegrade organic pollutants through metabolizing itself.

show abstract

“…The preparation of biological material usually consisted of separating it from mechanical impurities, sometimes rinsing with water and drying into a solid mass in the process of thermal vaporisation of water from, e.g. algae [27], or in the process of lyophilisation [32]. Cleaned and dried samples were stored in paper containers or tightly closed plastic containers [3].…”

Section: Effect Of Samples Preparation and Storage On Their Sorption mentioning

confidence: 99%

Determination of Sorption Properties of Heavy Metals in Various Biosorbents

Kłos

2018

Ecological Chemistry and Engineering S

View full text Add to dashboard Cite

Various techniques of determination of properties of physicochemical processes of heavy metal sorption in biosorbents were analysed. The methods of preparing and storing samples, conditions of experiment performance, as well as the methods of data interpretation were discussed. Two procedures of study were analysed: (1) in the static system of biosorbent-solution contact and (2) in the system of dynamic flow of solution.Copper cation sorption was studied. The effect of consecutive stages of the study on the quality of final results was shown. A high degree of uncertainty of the sorption capacity assessment was reported, which was dependent on the manner of conducting the study. The application of the pseudo-second order reaction model was substantiated to describe kinetics of cation-exchange sorption and the model of Langmuir isotherm to describe equilibria. The study conducted reveals that in order to perform comparative analyses, it is necessary to establish a joint concept of conducting studies and the interpretation of results.

show abstract

Evaluation of the potential of microalgae Microcystis novacekii in the removal of Pb2+ from an aqueous medium

Cited by 39 publications

References 52 publications

Green synthesis of iron oxide (Fe3O4) nanoparticles using two selected brown seaweeds: Characterization and application for lead bioremediation

Green synthesis of iron oxide (Fe3O4) nanoparticles using two selected brown seaweeds: Characterization and application for lead bioremediation

Biosorption of Pb(II) and Zn(II) from aqueous solutions by living B350 biomass

Determination of Sorption Properties of Heavy Metals in Various Biosorbents

Contact Info

Product

Resources

About