Biosorption of cesium by native and chemically modified biomass of marine algae: introduce the new biosorbents for biotechnology applications

Jalali-Rad, R; Ghafourian, Hossein; Asef, Y; Dalir, S.T.; Sahafipour, M.H.; Gharanjik, B M

doi:10.1016/j.jhazmat.2004.08.022

Cited by 88 publications

(41 citation statements)

References 35 publications

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“…using SEM/EDX. Marine green algae also show tremendous ability to accumulate various metal ions [37,62,63,125]. Freshwater green microalgae, such as, species of Chlorella, Scenedesmus and Chlamydomonas, also possess excellent metal sorption ability as evidenced by their high q max (the parameter reflecting maximum metal sorption capacity).…”

Section: Introductionmentioning

confidence: 99%

Metal sorption by algal biomass: From batch to continuous system

2016

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Section: Introductionmentioning

confidence: 99%

Metal sorption by algal biomass: From batch to continuous system

2016

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“…After 1 h, the biomass was filtered and washed with distilled water. Subsequently, the biosorbent was incubated with 50 ml sodium carbonate solution (0.2 M) for 15 min, filtered, washed with distilled water and dried overnight at 80°C [10,24]. Finally, the dried biomass was ground gently and sieved to achieve 0.5-1 and 1-2 mm particles.…”

Section: Biomass and Treatmentsmentioning

confidence: 99%

“…[9] Recently, native or treated biosorbents with salts and/or acids have been vastly employed [4,7,[13][14][15][16][17][18][19][20]. However, fewer reports of crosslinking have been published, [21][22][23][24][25][26].…”

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confidence: 99%

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Evaluation of Native and Chemically Modified Sargassum glaucescens for Continuous Biosorption of Co(II)

Ebrahimi

Panahi

Dabbagh

2008

Appl Biochem Biotechnol

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In the present study, biosorption of stable cobalt was studied in an up-flow fixed-bed column using the brown alga Sargassum glaucescens treated with formaldehyde (FA) or MgCl2. Notable increase in cobalt removal was observed for FA-treated biosorbent with 2.7 and 1.4 times higher dynamic capacity (DC) and uptake capacity (UC) than native alga, respectively. Consequently, FA-treated S. glaucescens was selected for further investigations. In particle size experiments, the DCs of 0.5-1 and 1-2 mm particles were both equal to 27.6 mg/g, and corresponding UCs were 34 and 38 mg/g, respectively. The maximum DC was obtained at residence time of 2.5 min. Studying the effect of additional ions indicated partial effect of Na+ and K+ ions on DC and UC, Mg2+ reduced highly the DC and slightly the UC while heavy metal ions (Ni2+, Cd2+, Cu2+, Zn2+, Pb2+ and Cr3+) caused decrease in both DC and UC about 1.5-4.7 and 1.8-3.2 times, respectively. Moreover, the column regeneration studies were carried out for four sorption-desorption cycles. The DC and the UC highly decreased in the second cycle, partially decreased or remained constant in the third and in the fourth one.

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“…It had been reported that the adsorption capacity of the biosorbent for metal ions could be improved greatly through chemical modification [18][19][20][21].…”

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confidence: 99%

Poly(Amic Acid)-Modified Biomass of Baker’s Yeast for Enhancement Adsorption of Methylene Blue and Basic Magenta

Sun

et al. 2009

Appl Biochem Biotechnol

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In this study, poly(amic acid)-modified biomass was prepared to improve the adsorption capacities for two cationic dyes, methylene blue and basic magenta. X-ray photoelectron spectroscopy and potentiometric titration demonstrated that a large number of imide, amine, and carboxyl groups were introduced on the biomass surface, and the concentrations of these functional groups were calculated to be 0.27, 1.08, and 1.08 mmol g(-1) by using the first derivative method. According to the Langmuir equation, the maximum uptake capacities (q(m)) for methylene blue and basic magenta were 680.3 and 353.4 mg g(-1), respectively, which were 13- and sevenfold than that obtained on the unmodified biomass. Adsorption kinetics study showed that the completion of the adsorption process needed only 40 min, which is faster than the common sorbent such as activated carbon and resin. Experimental results showed that pH and ionic strength had little effect on the capacity of the modified biomass, indicating that the modified biomass had good potential for practical use.

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Biosorption of cesium by native and chemically modified biomass of marine algae: introduce the new biosorbents for biotechnology applications

Cited by 88 publications

References 35 publications

Metal sorption by algal biomass: From batch to continuous system

Metal sorption by algal biomass: From batch to continuous system

Evaluation of Native and Chemically Modified Sargassum glaucescens for Continuous Biosorption of Co(II)

Poly(Amic Acid)-Modified Biomass of Baker’s Yeast for Enhancement Adsorption of Methylene Blue and Basic Magenta

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