The marine macroalga Cystoseira baccata as biosorbent for cadmium(II) and lead(II) removal: Kinetic and equilibrium studies

Lodeiro, Pablo; Barriada, José L.; Herrero, Roberto; Vicente, Manuel E. Sastre de

doi:10.1016/j.envpol.2005.10.001

Cited by 352 publications

(173 citation statements)

References 45 publications

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“…Therefore, chelation was another important mechanism involved in the biosorption of Cd and Pb with Deinococcus; as reported by Sheng et al [12] for Sargassum with FTIR spectroscopy studies. These changes in the FTIR spectra have also been observed in other biosorption studies [13,14]. Also the peak at 1387 attributed to C-O bond shifted to 1392 and 1390 Cm -1 when exposed to Cd and Pb respectively.…”

Section: Ft-irsupporting

confidence: 63%

Biosorption of some Heavy Metals by Deinococcus radiodurans Isolated from Soil in Basra Governorate-Iraq

Jaafar¹,

A²

2016

J Bioremed Biodeg

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IntroductionBioremediation is a natural process which depends on bacteria, fungi, and plants to alternating pollutants as these organisms carry out their normal life functions. Thus, bioremediation offers a substitute tool to destroy or reduce the harmful pollutants through biological activity with an effective cost. In the early 1980s, certain microorganisms were found to accumulate metallic elements at a high capacity [1,2].There are a lot of studies about the bioremediation ability of D. radiodurans and its genetic engineering, for cleaning up heavy metals in nuclear waste contaminated sites [3][4][5][6][7]. The development of bioremediation strategies using Deinococcus spp is therefore vital for the cleanup of contaminated site with radioactive waste. Additional advantages of deinococci are that they are vegetative, easily cultured, and nonpathogenic. As these sites rarely contaminated by a single chemical, it is necessary to bio remediating strain to be multi resistant to various toxic agents. The present work describes the use of a combination of spectroscopic and microscopic methods to characterize the heavy metals around the cells of bacterial strains isolated from extreme habitats as well as to elucidate the interaction mechanisms of these bacteria with these metals. Materials and Methods Source of bacterial isolateThe tested isolates, D. radiodurans used in this study was isolated previously from the Um -Qasr district, south of Basra city-Iraq. The isolate was identified by biochemical tests and sequencing 16S rRNA gene and comparing the sequences online with GenBank database (www.ncbi.nlm.nih.gov). Biosorption experimentThe equilibrium, kinetics data of the biosorbent D. radiodurans were obtained by performing batch experiments AbstractThe bacterium Deinococcus radiodurans has been isolated from Basra soil. On the basis of morphological, biochemical, 16S rRNA gene sequencing and phylogeny analysis, the isolates were authentically identified as D. radiodurans. The biosorption capabilities of D. radiodurans for cadmium (Cd +2 ) and lead (Pb +2 ) were monitored at different concentrations and contact times. The characterization of heavy metals around the cells of bacterial strains was observed using the Fourier Transform Infrared (FT-IR) spectrophotometer, X-ray powder diffraction analysis (XRD) and transmission electron microscope (TEM).preparation UATR). This analysis was done in the Chemistry department, University Putra Malaysia.

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Section: Ft-irsupporting

confidence: 63%

Biosorption of some Heavy Metals by Deinococcus radiodurans Isolated from Soil in Basra Governorate-Iraq

Jaafar¹,

A²

2016

J Bioremed Biodeg

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“…have been identified as potential adsorption sites to be responsible for binding metallic ions to fungi. Their potential for metal uptake depends on factors such as the abundance of sites, their accessibility, chemical state and affinity between adsorption site and metal (Lodeiro, 2006).…”

Section: Discussionmentioning

confidence: 99%

Biosorption of Cadmium from Aqueous Solutions Using A local Fungus Aspergillus cristatus (Glaucus Group)

Hassan¹,

El-Kassas²

2011

Afr. J. Biotechnol.

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“…The competition between metal ions and hydrogen ions for the active sites on the biosorbent surface is directly related to the acidity of the solution (Lodeiro et al, 2006). Metal binding onto biomass during biosorption involves complex mechanisms, such as ion exchange, chelation, adsorption by physical forces, and ion entrapment in inter-and intrafibrillar capillaries and spaces of the cell structural network of a biosorbent (Chojnacka et al, 2005;Sari and Tuzen, 2009).…”

Section: Effect Of Ph On Cu(ii) Biosorptionmentioning

confidence: 99%

Evaluation of different isotherm models, kinetic, thermodynamic, and copper biosorption efficiency ofLobaria pulmonaria(L.) Hoffm.

Kılıç

Atakol

Aras

et al. 2013

Journal of the Air & Waste Management Association

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The biosorption characteristics of Cu(II) ions from aqueous solution using Lobaria pulmonaria (L.) Hoffm. biomass were investigated. The biosorption efficiency of Cu(II) onto biomass was significantly influenced by the operating parameters. The maximum biosorption efficiency of L. pulmonaria was 65.3% at 10 mg/L initial metal concentration for 5 g/L lichen biomass dosage. The biosorption of Cu(II) ions onto biomass fits the Langmuir isotherm model and the pseudo-second-order kinetic model well. The thermodynamic parameters indicate the feasibility and exothermic and spontaneous nature of the biosorption. The effective desorption achieved with HCl was 96%. Information on the nature of possible interactions between the functional groups of the L. pulmonaria biomass and Cu(II) ions was obtained via Fourier transform infrared (FTIR) spectroscopy. The results indicated that the carboxyl (-COOH) and hydroxyl (-OH) groups of the biomass were mainly involved in the biosorption of Cu(II) onto L. pulmonaria biomass. The L. pulmonaria is a promising biosorbent for Cu(II) ions because of its availability, low cost, and high metal biosorption and desorption capacities.Implications: Lobaria pulmonaria is a promising biosorbent for Cu(II) ions because of its availability, low cost, and high metal biosorption and desorption capacities. To the best of our knowledge, this is the first paper on the biosorption Cu by L. pulmonaria.

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The marine macroalga Cystoseira baccata as biosorbent for cadmium(II) and lead(II) removal: Kinetic and equilibrium studies

Cited by 352 publications

References 45 publications

Biosorption of some Heavy Metals by Deinococcus radiodurans Isolated from Soil in Basra Governorate-Iraq

Biosorption of some Heavy Metals by Deinococcus radiodurans Isolated from Soil in Basra Governorate-Iraq

Biosorption of Cadmium from Aqueous Solutions Using A local Fungus Aspergillus cristatus (Glaucus Group)

Evaluation of different isotherm models, kinetic, thermodynamic, and copper biosorption efficiency ofLobaria pulmonaria(L.) Hoffm.

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