Removal of Remazol Brilliant Blue R dye from aqueous solutions by adsorption onto immobilized Scenedesmus quadricauda: Equilibrium and kinetic modeling studies

Ergene, Aysun; Ada, Kezban; Tan, Sema; Katırcıoğlu, Hikmet

doi:10.1016/j.desal.2009.06.027

Cited by 181 publications

(62 citation statements)

References 37 publications

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“…Similarly, the Freundlich isotherm can be used for non-ideal adsorption that involves heterogeneous surface energy systems (Ergene et al 2009) and is expressed by the following equation:…”

Section: The Adsorption Isothermmentioning

confidence: 99%

Fixed-bed column study for the adsorptive removal of acid fuchsin using carbon–alumina composite pellet

Dutta

Basu

2013

Int. J. Environ. Sci. Technol.

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The carbon-alumina composite pellet was developed for the adsorption of acid fuchsin from its aqueous solution. The composite pellet was characterized using Brunauer-Emmett-Teller method, scanning Electron Microscopy and Fourier Transform Infrared Spectroscopy. The adsorption capacity of commercial alumina, commercial activated carbon and the prepared composite pellet was investigated against acid fuchsin, and the adsorption capacity was found to be increased in the order of alumina \ carbon-alumina composite pellet \ activated carbon. Although the adsorption capacity of carbon-alumina composite pellets was less than that of activated carbon, the use of the pelletized form of the present adsorbent was proven to be advantageous for the use in the packed-bed column. The experimental data were fitted to Langmuir, Freundlich and Temkin adsorption isotherms, and the equilibrium behavior was well explained by Langmuir isotherm. Besides, the kinetic behavior was well predicted by pseudo-second-order kinetics. The effects of inlet dye concentration (10-20 mg/L), feed flowrate (5-15 mL/min) and bed height (2.54-7.62 cm) on the breakthrough characteristics were investigated using a fixed-bed column. The maximum removal capacity in the column study was found to be 343.87 mg/L with an initial dye concentration and flowrate of 20 and 10 mL/min according to Bohart-Adams model. The breakthrough behavior was also effectively described by the Yoon-Nelson and Clark models.

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“…Similarly, the Freundlich isotherm can be used for non-ideal adsorption that involves heterogeneous surface energy systems (Ergene et al 2009) and is expressed by the following equation:…”

Section: The Adsorption Isothermmentioning

confidence: 99%

Fixed-bed column study for the adsorptive removal of acid fuchsin using carbon–alumina composite pellet

Dutta

Basu

2013

Int. J. Environ. Sci. Technol.

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“…After pH 8 there was a gradual decrease in the amount of RBBR adsorbed until it reached pH 12. The high adsorption capacity of the RBBR solution at acidic pH could be attributed to the electrostatic interactions between the positively charged of the adsorbent and the negatively charged RBBR dye anions [18]. The presence of high concentration of H + can increase the positive charge on the surface of Zn-CL by protonating the negatively charged sites (M−O-) and hydroxyl groups (M−OH) and forming M−OH 2+ (M: Si or Zn) as the solution pH reduces [1].…”

Section: Effect Of Phmentioning

confidence: 99%

Enhancement of Remazol Brilliant Blue R Adsorption Capacity by using Modified Clinoptilolite

Alrozi

Anuar

Faraziehan

et al. 2016

IJEE

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In this study, the adsorption behavior of Remazol Brilliant Blue R (RBBR) from aqueous solution by using raw and modified clinoptilolites were investigated. In the experimental work, raw clinoptilolite (R-CL) was treated with Zn(NO3)2 in ethanol and produced zinc-grafted clinoptilolite (Zn-CL).The adsorption experiments were carried out under different conditions of initial concentration (25-250 mg/L), adsorption time (0-2h), solution pH (2-12), and temperature (300-353 K) to determine optimum conditions for the highest RBBR removal. The influence of these parameters on the adsorption capacity was studied using the batch process. The results indicated that the solution pH was observed to be a key factor of the RBBR adsorption process. The maximum dye adsorption was achieved with Zn-CL adsorbent at pH~6 and the corresponding adsorption capacity was found to be 42.2 mg/g, which was higher than R-CL (12.5 mg/g). Lower adsorption capacity of RBBR was found by Zn-CL between pH 8 and 12 opposite to R-CL which showed a marginal increase in adsorption capacity within the same pH range. The results proved that Zn-CL which is a modified clinoptilolite is an effective adsorbent for the removal of RBBR from aqueous solution.

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“…Also, as a biosorbent, this strain is both cost-effective and non-toxic. 7) The aim of this study was to determine the ability as a biosorbent of Oscillatoria sp. H1 for the removal of chromium (VI) from aqueous solutions and compare the adsorption behavior of different biosorbent forms: dry biomass, immobilized live and heat-inactivated Oscillatoria sp.…”

Section: Introductionmentioning

confidence: 99%

“…A wide range of non-living biomass like bark, lignin, peanut, hulls, as well as living biomass like fungi, bacteria, 4) yeast, moss, aquatic plants 5) and algae has been used as biosorbents. [6][7][8][9][10][11] Algal biosorbents for metal removal from aqueous solu-ISIJ International, Vol. 52 (2012), No.…”

Section: Introductionmentioning

confidence: 99%

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Chromium (VI) Biosorption from Aqueous Solutions by Free and Immobilized Biomass of Oscillatoria sp. H1 Isolated from Freshwater

2012

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The Oscillatoria sp. H1 (Cyanobacteria) isolated from Mogan Lake was researched for the removal of chromium (VI) ions from aqueous solutions and were used free (dry biomass), immobilized (in Ca-alginate) live and immobilized heat-inactivated biomass as biosorbents. Particularly, the effects of physico-chemical parameters like pH, the temperature change, initial concentration, biosorption time and biosorbent dosages on the biosorption of Cr (VI) ions were investigated. The biosorption of Cr (VI) ions for all biosorbents was determined as a highest value at pH 6.0. The temperatures which changed between 20 and 40°C did not affect the biosorption capacity.The biosorption of Cr (VI) ions on both free (dry) and immobilized (live and heat-inactivated) Oscillatoria sp. H1 biomass (mg/g) increased as the initial concentration of Cr (VI) ions was increased in the medium. Biosorption equilibrium was established in about 60 min. The retention of Cr (VI) increased with increasing the amount of the adsorbent up to 0.04 g and 30 bead. The results show that immobilized inactive cells (13.83 mg/g) and dry biomass (15.81 mg/g) had less biosorption capacity than that of the immobilized live form (20.82 mg/g). The Langmuir and Freundlich isotherm models were used to fit the equilibrium biosorption data. The biosorbent systems could be regenerated by washing with a solution of 10 mM HCl. The percent desorption achieved was as high as 98%. The biosorbents were reused in three biosorptiondesorption cycles without significant loss of their initial biosorption capacity. The results indicated that the immobilized live Oscillatoria sp. H1 could be suitable for development of an efficient biosorbent for the removal of chromium (VI) from wastewater from some industrial processes and other ones.

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Removal of Remazol Brilliant Blue R dye from aqueous solutions by adsorption onto immobilized Scenedesmus quadricauda: Equilibrium and kinetic modeling studies

Cited by 181 publications

References 37 publications

Fixed-bed column study for the adsorptive removal of acid fuchsin using carbon–alumina composite pellet

Fixed-bed column study for the adsorptive removal of acid fuchsin using carbon–alumina composite pellet

Enhancement of Remazol Brilliant Blue R Adsorption Capacity by using Modified Clinoptilolite

Chromium (VI) Biosorption from Aqueous Solutions by Free and Immobilized Biomass of Oscillatoria sp. H1 Isolated from Freshwater

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