Biosorption of Uranium Ions by Marine Macroalga <i>Padina pavonia</i>

Aytaş, Şule; Gündüz, E.; Gök, Cem

doi:10.1002/clen.201300019

Cited by 21 publications

(8 citation statements)

References 37 publications

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“…Extensive studies have been undertaken in recent years with the aim of finding alternative and economically feasible low‐cost sorbents for wastewater treatment. This separation process uses biological materials which are either abundant, such as algae , plant biomass , microbial biomass , or wastes coming from industrial productions and agricultural activities .…”

Section: Introductionmentioning

confidence: 99%

Factorial Design Methodological Approach for Enhanced Cadmium Ions Bioremoval by Opuntia Biomass

Rosique

Angosto

Guibal

et al. 2016

CLEAN Soil Air Water

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The bioremoval efficiency of Opuntia biomass, a low-cost biosorbent and renewable resource, for cadmium ions from aqueous solutions was investigated using factorial design methodology. The functional groups involved in the sorption process were identified by FTIR spectroscopy. A factorial experimental design technique, the full factorial design 3 3 , has been used for enhanced cadmium ions bioremoval. Three factors were considered: protonation of the sorbent, initial cadmium concentration, and sorbent dosage at three markedly different levels. An empirical model was statistically developed using response surface methodology for its optimization. The model showed that cadmium ions bioremoval in aqueous solution was affected by all the three factors analyzed. The statistical model revealed a maximum sorption capacity (q e ) of 58.4 mg/g with sorbent protonated with 0.67 M HCl, initial Cd(II) concentration of 50 mg/L, and 0.55 g/L of sorbent dosage. Bioremoval kinetic data were properly fitted by chemical sorption of pseudo-second order. The Langmuir equation fits better the sorption isotherm (equilibrium data) than other classical models.Abbreviations: ANOVA, analysis of variance; DW, Durbin-Watson; FTIR, Fourier transform infrared; ICP, inductively coupled plasma; MAE, mean absolute error; PFORE, pseudo-first-order rate equation; PSORE, pseudosecond-order rate equation; SEM, scanning electron microscopy. 959

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Section: Introductionmentioning

confidence: 99%

Factorial Design Methodological Approach for Enhanced Cadmium Ions Bioremoval by Opuntia Biomass

Rosique

Angosto

Guibal

et al. 2016

CLEAN Soil Air Water

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“…Thus, the results showed that the optimum conditions are pH 4, 75 mg L −1 of initial uranium concentration, 120 min contact time, 10 g L −1 biosorbent dosage, and a temperature of 50°C. Under these conditions, the marine biomass showed an interesting uranium removal efficiency of about 98%, corresponding to a maximum sorption capacity of 162 mg g −1 and a distribution coefficient of 5.26 L g −1 .…”

Section: Adsorption‐based Remediationmentioning

confidence: 99%

Remediation of Emerging Pollutants in Contaminated Wastewater and Aquatic Environments: Biomass‐Based Technologies

Ncibi

Mahjoub²,

Mahjoub

et al. 2017

CLEAN Soil Air Water

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The emergence of new kinds of pollutants including pharmaceuticals drugs, endocrine disrupting compounds, radionuclides, flame retardants, surfactants, and microbial toxins, to name a few, is posing new and serious challenges to the conventional wastewater treatment techniques, to the extent that the treatment plants are becoming indirect source of pollution. Thus, in order to meet these new environmental threats, tremendous research, and development efforts were and are being made to optimize the efficiency of several remediation techniques. In this review, recent and valuable research works will be presented and discussed concerning the remediation of emerging pollutants in contaminated wastewaters and aquatic environments through biomass‐based technologies, including bio‐adsorption using both terrestrial and marine bioresources and agro‐industrial wastes along with derived activated carbons. Phytoremediation, microbial remediation using bacteria, fungi, yeasts was also reported, in addition to some interesting combination scenarios such as biodegradtion/filtration, adsorption/biodegradation, and adsorption/ozonation. Eco‐friendliness, efficiency, cost‐effectiveness were the main criteria of choice among the rich literature, in order to prove that renewable biomass and its derived products could be the “sustainable core” for single or hybrid water treatment techniques, targeting emerging pollutants.

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“…L.M.Irvine, a red alga. Marine macroalga Padina pavonica (L.) Thivy was successfully used to removing of UO 2 2+ by Aytas et al (Aytas, Gunduz, & Gok, 2014). Bai et al (2014) reported that the uranium could be removed by immobilized cells of Rhodotorula glutinis (Fresen.)…”

Section: Introductionmentioning

confidence: 99%

Untitled

Çelik¹,

Aslani²,

Can³

2019

Turk. J. Fish. Aquat. Sci.

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The bioaccumulation of UO 2 2+ (uranyl ion) was investigated by using dry biomass of Botryococcus braunii. Experiments were conducted based on a rotatable central composite design (CCD) and analyzed using response surface methodology (RSM), which was used to optimize the bioaccumulation process. In this goal, the effects of parameters such as initial uranium (VI) concentration, pH, temperature and contact time were studied. The optimum conditions for maximum removal (87%) of UO 2 2+ from an aqueous solution were as follows: initial uranium (VI) concentration (55 mg/l), pH (3.6), temperature (46°C) and contact time (74 min). Langmuir and Freundlich isotherms and also thermodynamic parameters like Enthalpy (∆H°), Entropy (∆S°), standard Gibbs free energy (∆G°) were investigated, as well.

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Biosorption of Uranium Ions by Marine Macroalga Padina pavonia

Cited by 21 publications

References 37 publications

Factorial Design Methodological Approach for Enhanced Cadmium Ions Bioremoval by Opuntia Biomass

Factorial Design Methodological Approach for Enhanced Cadmium Ions Bioremoval by Opuntia Biomass

Remediation of Emerging Pollutants in Contaminated Wastewater and Aquatic Environments: Biomass‐Based Technologies

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