Bench-scale packed bed sorption of Cibacron blue F3GA using lucrative algal biomass

Shanmugam, D; Alagappan, Murugappan; Shanmugam, VenkatKumar

doi:10.1016/j.aej.2016.05.012

Cited by 26 publications

(6 citation statements)

References 23 publications

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“…As regards the bed height, qe increased with an increase in bed height, this is because at higher bed height the phenolic ions have more available active sites for sorption, thereby leading to an increase in the adsorption capacity. The trend of the relationship between the adsorption capacity and the process variables obtained in this study is similar to the trend reported by Shanmugamet al [58] in a similar study. The high correlation coefficient values (R 2 > 0.9) obtained in the analysis in most cases showed that the Thomas model fitted the experimental data quite well.…”

Section: 31thomas Modelsupporting

confidence: 92%

“…index to investigate the internal structure and surface area of the activated carbon [57]. Shanmugamet al [58] noted that the carbonization and activation process conditions are not the only major contribution towards the porous structure of activated carbon but also being influenced by the original nature and structure of the starting material.…”

Section: Physical Properties Bet Surface Area and Pore Size Distribmentioning

confidence: 99%

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WITHDRAWN: Packed Bed Column Adsorption of Phenol Onto Corn Cob Activated Carbon: Linear and Nonlinear Kinetics Modeling

Chiedozie

Iheanacho

Nwabanne

et al. 2020

Preprint

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In the present study, linear and nonlinear regression analysis for packed bed column adsorption of phenol onto corn cob activated carbon was investigated. The activation of the corn cob provided the activated carbon with enhanced surface area and micropore volume of 903.7m2/g and 0.389 cm3/g respectively. The analysis of the physical properties of the corn cob activated carbon (CCAC) revealed that it contained 33.47% of fixed carbon. SEM images indicated the presence of interspatial pores within the matrix of the adsorbent, while the FTIR analysis revealed that the major functional groups in CCAC were alkanol, alkanes, alkyls, carboxylic acids, ethers, esters, and nitro compounds. The effect of the process parameters influencing the dynamic adsorption process was investigated at flow rates (9 – 18mg/min), initial phenol concentration (100-300mg/l), bed height (5 – 10cm), and particle size (300-800µm). Breakthrough time and adsorption capacity increased with an increase in bed height but decreased with an increase in flow rate, initial phenol concentration, and particle size. At 9mg/min flow rate, 100mg/l initial phenol concentration, 10 cm bed height, and 300µm, the breakthrough and saturation points adsorption capacities were 2.143 and 8.570 mg/g respectively, the volume of effluent treated at saturation point was 12.96L, the length of mass transfer zone (MTZ) was 7.50cm, while 66.13% phenol removal efficiency was achieved. The linear and nonlinear regression analysis of the dynamic column adsorption models viz. Thomas, Adam Bohart, and Wolborska fitted better with the experimental data as compared to Yoon–Nelson. Generally, the nonlinear regression analysis proved to be a better tool for dynamic adsorption model analysis because the model parameters it predicted are in higher proximity to the experimental data when compared to those obtained via linear regression analysis. Conclusively, this study has shown that CCAC can successfully be used for the removal of phenol from aqueous solutions. It also provided experimental evidence that for a more accurate analysis of dynamic adsorption models nonlinear regression tool should be considered.

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Section: 31thomas Modelsupporting

confidence: 92%

Section: Physical Properties Bet Surface Area and Pore Size Distribmentioning

confidence: 99%

WITHDRAWN: Packed Bed Column Adsorption of Phenol Onto Corn Cob Activated Carbon: Linear and Nonlinear Kinetics Modeling

Chiedozie

Iheanacho

Nwabanne

et al. 2020

Preprint

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“…The broad peak of O-H stretching vibration of CB-F3GA@mPHEMA monomer at 3448 cm -1 has disappeared after adsorption CB-F3GA@mPHEMA. FTIR analysis of same polymer is supported with our studies [29,[34][35][36].…”

Section: Ftir Analysissupporting

confidence: 80%

Cibacron Blue F3GA Bağlı mPHEMA ile Sulu Sistemden Fenol ve Nitrofenollerin Uzaklaştırılması

Uçar¹,

Erçolak²,

Uçar³

2020

El-Cezeri Fen Ve Mühendislik Dergisi

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Phenol and nitrophenols are toxic to other organisms in aqueous media even at very low concentrations. In this work, the removal of phenols and nitrophenols by using Cibacron Blue F3GA attached of magnetic poly(2-hydroxyethylmethacrylate) as an adsorbent from the aqueous media was investigated. The adsorption phenomenon of the phenol and nitrophenols on adsorbent at different time ranges (15, 20, 45, 60, 90 and 120 minutes) was investigated to elucidate the equilibrium times with increasing phenol and nitrophenols concentration. The parameters such as pH (2-12), adsorbent dosage, adsorption time and initial concentration were studied. The maximum adsorption equilibrium time was found to be approximately 20 minutes. The amount of adsorbed substance on adsorbent was observed to decrease in the order of 4-nitrophenol> 3-nitrophenol> and 2-nitrophenol> phenol. The adsorbent was examined by using Fourier Transform Infra-Red, Scanning Electron Microscopy-Energy Dispersive X-ray techniques and Differential Thermal Analysis-Thermal Gravimetric Analysis Techniques before and after the adsorption. The adsorption process was observed to comply with the Langmuir isotherm. It was possible to use again and again Cibacron Blue F3GA-attached mPHEMA beads without any significant decreases in their adsorption capacities.

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“…Both external (fluid-film) and intraparticle (solid) mass-transfer resistance were ignored in the Thomas model. This indicates that the surface reaction between the adsorbate and the unused capacity of the adsorbent controlled the adsorption rate [73]. The kinetic constant values, K Th , reduced as the bed height increased because the adsorbent-adsorbate interactions could occur faster in a greater amount of adsorbent.…”

Section: Breakthrough Curve Modellingmentioning

confidence: 99%

Adsorption of Acid Yellow 23 Dye on Organobentonite/Alginate Hydrogel Beads in a Fixed-Bed Column

Rivera-Arenas,

Macías-Quiroga,

Dávila-Arias

et al. 2023

J. Compos. Sci.

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This research evaluates the use of organoclay/alginate hydrogels in removing Acid Yellow 23 in a fixed-bed column and contributes to the application of these composites in the context of the adsorption of anionic dyes that are present in wastewater. An organobentonite (OBent) was synthesized and encapsulated in an alginate matrix, using Ca2+ ions as a crosslinking agent. Experiments in fixed-bed columns showed that breakthrough and exhaustion times were longer with increasing bed height, which decreased with increases in flow rate and initial dye concentration. The Thomas, Yoon–Nelson, and Adams–Bohart models were well fitted to the experimental data for the breakthrough curves with high Adj. R2 correlation coefficients and low values of χ2. The theoretical adsorption capacity of the organobentonite/alginate hydrogel calculated from the Thomas model was 0.50 ± 0.01 mg/g (equivalent to 30.97 mg/g OBent), and this was obtained by using a 15 cm (10.10 g) bed height, 1 mL/min flow rate, and a 45 mg/L input dye concentration. The bed was regenerated with a 0.5 M NaOH solution, and the reuse of the saturated column bed was studied for two adsorption–desorption cycles. The results obtained in this study suggest the potential use of an organoclay/alginate hydrogel for the adsorption of pollutants in continuous systems.

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Bench-scale packed bed sorption of Cibacron blue F3GA using lucrative algal biomass

Cited by 26 publications

References 23 publications

WITHDRAWN: Packed Bed Column Adsorption of Phenol Onto Corn Cob Activated Carbon: Linear and Nonlinear Kinetics Modeling

WITHDRAWN: Packed Bed Column Adsorption of Phenol Onto Corn Cob Activated Carbon: Linear and Nonlinear Kinetics Modeling

Cibacron Blue F3GA Bağlı mPHEMA ile Sulu Sistemden Fenol ve Nitrofenollerin Uzaklaştırılması

Adsorption of Acid Yellow 23 Dye on Organobentonite/Alginate Hydrogel Beads in a Fixed-Bed Column

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