Biosorption of Reactive Blue 49 dye under batch and continuous mode using a mixed biosorbent of macro-fungus Agaricus bisporus and Thuja orientalis cones

Akar, Sibel Tunali; Gorgulu, Asli; Kaynak, Zerrin; Anılan, Burcu; Akar, Tamer

doi:10.1016/j.cej.2008.07.027

Cited by 95 publications

(37 citation statements)

References 50 publications

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“…The observed mercury uptake increase is attributed to the increased adsorbent surface area available for contact with the Hg(II), which leads to increased number of surfaceactive groups. 28,29 The mercury uptake remains practically the same, ~95 %, at adsorbent dose > 0.08 g L. Figure 2 shows that the uptake of Hg(II) increases with increasing contact time and that the adsorption process is saturated after approximately 30 min of contact time. The contact times at which the adsorption reaches equilibrium differs as revealed by saturation studies reported by other workers for the uptake of Hg(II) 30,31 and is related to the accessibility and the binding capacity of the sulphur.…”

Section: Effect Of Solid/liquid Ratiomentioning

confidence: 78%

Adsorbent for Efficient Removal of Mercury(ii) From Aqueous Solution

Hassan¹,

Kamel²,

Awwad³

et al. 2018

ECB

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Decontamination of mercury from aqueous media remains a serious task for health and ecosystem protection. Removal of Hg(II) from the aqueous solution by ZnO:S has been investigated and elucidated. The effect of various parameters such as solution pH, adsorbent dose, contact time, initial adsorbate concentration has been studied and optimized. The optimized parameters for metal ion are pH value of 2.4, the equilibrium time was attained after 30 min, and the maximum removal percentage was achieved at an adsorbent loading weight of 0.08 g. It was found that the adsorption capacity of ZnO:S increased with increase in the initial mercury concentration. The equilibrium and kinetic data were found to be in good agreement with Freundlich isotherm model. * Corresponding AuthorsFax: +20 2 26822991 E-Mail: saadsmhassan@yahoo.com (S.S.M. Hassan) [a]

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Section: Effect Of Solid/liquid Ratiomentioning

confidence: 78%

Adsorbent for Efficient Removal of Mercury(ii) From Aqueous Solution

Hassan¹,

Kamel²,

Awwad³

et al. 2018

ECB

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“…1. The intense adsorption bands around 3500 to 3200 cm -1 reveal the stretching vibrations of amino groups the hydroxyl groups (Akar et al 2009;Bayramoğlu et al 2006). The peak at a range from 3000 to 2800 cm -1 can be attributed to C-H stretching vibrations.…”

Section: Characterization Of Smsmentioning

confidence: 95%

Adsorptive Removal of Methylene Blue from Aqueous Solution by Spent Mushroom Substrate: Equilibrium, Kinetics, and Thermodynamics

Yan¹,

Lijuan²

2013

BioResources

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Spent mushroom substrate (SMS), a renewable bio-waste from the mushroom-growing industry, was used as an adsorbent to remove methylene blue (MB) from aqueous solution. SMS was characterized using scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). Adsorption experiments with the SMS adsorbent were performed based on various parameters, such as adsorbent dose, initial MB dye concentration, initial pH, contact time, and temperature. The Langmuir, Freundlich, and Temkin isotherm models were employed to interpret the adsorption behavior. The results indicated that the equilibrium data were perfectly represented by the Temkin isotherm. The maximum adsorption capacity of SMS reached 63.5 mg g -1 at 303 K. The kinetics studies indicated that the pseudo-second-order model best described the adsorption of MB on SMS. The activation energy of the adsorption was 5.64 kJ mol -1 . Thermodynamic parameters suggested that the adsorption was an exothermic and spontaneous physical process. The results imply that SMS is a potentially low-cost adsorbent for treating wastewater containing cationic dyes.

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“…In the region of 2000-1500 cm −1 , the spectra were dominated by the vibration of the peptide backbone [30]. The band at 1747 cm −1 was identified as the C O vibration of carboxylic groups, which is derived primarily from the ester linkage of fatty aliphatic monocarboxylic acids [31,32]. Amide bands were found at 1642 cm −1 (amide I band), 1537 cm −1 (amide II band), [30,33].…”

Section: Surface Characteristics Of P Oxalicum Biomassmentioning

confidence: 94%

Binding mechanisms and QSAR modeling of aromatic pollutant biosorption on Penicillium oxalicum biomass

Wei

Huang

Yang

et al. 2011

Chemical Engineering Journal

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a b s t r a c tThe biosorption of eight aromatic compounds with different functional groups by Penicillium oxalicum biomass were investigated. The affinity of the biomass for the eight compounds at pH 6.0 follows the following trend: 1-naphthalenamine > naphthol > benzoic acid > p-toluidine > p-cresol > p-toluic acid > phenol > p-toluenesulfonic acid. Biomass surface was characterized, and it was found that four discrete binding sites, corresponding to carboxyl (pK a = 4.0), phosphoric (pK a = 7.0), amine (pK a = 8.8), and hydroxyl groups (pK a = 10.0), were identified on the biomass surface by using the linear programming method (LPM) for the fitting of the titration data and FTIR analysis. The carboxyl and amine groups dominate the biomass surface sites, which might have played an important role in biosorption of organic compounds. Furthermore, the compounds were divided into two groups based on the calculation of ionization degree for toluene derivatives and the comparison on the number of benzene rings for barely ionized compounds. It was found that low ionization degree and high hydrophobicity favor the biosorption for the two groups, respectively. Moreover, a R 2 adj of 0.724 between the log of Freundlich coefficient (log K f ) and log Kow indicated that the hydrophobicity plays role in the sorption of eight organic compounds. The QSAR model with one variable was developed for the first time between log K f and polar surface area (PSA) to predict the biosorption behaviors of organic compounds (R 2 adj = 0.960) except for ptoluenesulfonic acid (with pK a < 0), which also supported the electrostatic attraction and hydrophobicity mechanisms.

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Biosorption of Reactive Blue 49 dye under batch and continuous mode using a mixed biosorbent of macro-fungus Agaricus bisporus and Thuja orientalis cones

Cited by 95 publications

References 50 publications

Adsorbent for Efficient Removal of Mercury(ii) From Aqueous Solution

Adsorbent for Efficient Removal of Mercury(ii) From Aqueous Solution

Adsorptive Removal of Methylene Blue from Aqueous Solution by Spent Mushroom Substrate: Equilibrium, Kinetics, and Thermodynamics

Binding mechanisms and QSAR modeling of aromatic pollutant biosorption on Penicillium oxalicum biomass

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