Removal of dyes from aqueous solutions by straw based adsorbents: Batch and column studies

Zhang, Wenxuan; Yan, Han; Li, Haijiang; Jiang, Ziwen; Dong, Lei; Kan, Xiaowei; Yang, Hu; Li, Aimin; Cheng, Rongshi

doi:10.1016/j.cej.2011.01.094

Cited by 139 publications

(60 citation statements)

References 31 publications

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“…The higher desorption in HCl compared to H2O and CH3COOH suggests the physical adsorption (ion exchange) of MB onto SFTS. Similar behavior has been observed in Silkworm exuviae (Chen et al, 2011), wheat straw materials (Zhang et al, 2011) and citric acid modified kenaf fibres (Sajab et al, 2011).…”

Section: Desorption Studiessupporting

confidence: 57%

“…The uses of biomass/ biomaterials in the treatment of wastewater are highly successful due to its low cost, high efficiency, regeneration of biosorbents and less chemical or biological sludge generation (Dogan et al, 2009). A number of low cost biosorbents such as spent tea leaves (Hameed, 2009), modified wheat straw (Zhang et al, 2011), peanut husk (Song et al, 2011), Citrus sinensis bagasse , Green pea peels (Dod et al,2012), oil palm empty fruit bunch fibers (Sajab et al, 2013), pine saw dust (Witek-Krowiak, 2013), Cattail leaves (Guechi and Hamdaoui, 2013), egg shells (Podstawczyk et al, 2014), breadnut peel (Chieng et al,2015) have been studied in the literature for their capacity to remove methylene blue from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

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Biosorption of methylene blue from aqueous solutions by modified mesoporous Simarouba glauca seed shell powder

2015

Global NEST Journal

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The present study investigates the ability of formaldehyde treated Simarouba glauca seed shell powder for removal of methylene blue (MB) from aqueous solutions. Batch adsorption studies were carried out under various experimental conditions such as agitation time, dye concentration, adsorbent dose and pH. The adsorbent was characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), XRD, BET and CHNS analysis. The adsorption data were analysed using Langmuir, Freundlich, Temkin and Dubinin -Radushkevich isotherms. Equilibrium data fitted well to Langmuir isotherm with maximum adsorption capacity of 111.1 mg g -1. Adsorption kinetic data were verified using pseudo first order, pseudo second order and Intraparticle diffusion model. The kinetic data were found to fit well with pseudo second order model.

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Section: Desorption Studiessupporting

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Biosorption of methylene blue from aqueous solutions by modified mesoporous Simarouba glauca seed shell powder

2015

Global NEST Journal

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“…(7), provides information about the biosorption mechanism as chemical exchange (E>8 kJ/mol) or physical biosorption (E<8 kJ/mol) [30,31]. The mean biosorption energy is related to the activity coefficient and Polanyi potential according to Eq.…”

Section: Biosorption Isothermmentioning

confidence: 99%

“…(21) to determine AR25 biosorbed for a fixed removal percentage. (29) The total AR25 biosorbed at any given initial concentration and the reaction contact time can be determined using the following expression: (30) For instance, 10 m 3 of a solution is to be treated, and 5 kg biosor- bent added to each of the two stages containing 150 mg/L AR25 in the first stage. Series of contact times from 30 min up to 600 min in 10 min increments have been specified in the first stage of the two-stage biosorption system for AR25 and expressed as follows:…”

Section: Two-stage Batch Sorber Design Analysismentioning

confidence: 99%

Two-stage batch sorber design and optimization of biosorption conditions by Taguchi methodology for the removal of acid red 25 onto magnetic biomass

Oladipo

Gazi²

2015

Korean J. Chem. Eng.

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Biomagnetic material (MFC) was synthesized via simple co-precipitation and used as biosorbent for the removal of acid red 25 (AR25) under optimized conditions. The characteristics of MFC were studied using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometer (VSM), Boehm titration and scanning electron microscopy (SEM). Optimum removal of AR25 was achieved at pH=5.0. The equilibrium data were well described by the Sips and Freundlich models. Taguchi methodology was employed to optimize the biosorption experiments. 411.56 mg/g and 96.8% were obtained as the biosorption capacity and removal efficiency, respectively, at the optimum conditions of ionic strength (0.5 M), influent volume (300 L) and MFC dosage (4 g). The contact time for removal of 96% AR25 in two-stage batch system is 400.8 min which is lower than the single-stage treatment process (895 min).

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“…However, dye-containing wastewater treatment based on SMS is rarely reported. (Zhang et al 2011) Though mushroom growers often use a composted mixture as their growth medium for their product (Hubbe et al 2010), such mixtures cannot be expected to have ideal properties for use as soil amendments, especially after having been used for the production of mushrooms. Hence, the utilization of such waste materials is most desirable.…”

Section: Introductionmentioning

confidence: 99%

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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Removal of dyes from aqueous solutions by straw based adsorbents: Batch and column studies

Cited by 139 publications

References 31 publications

Biosorption of methylene blue from aqueous solutions by modified mesoporous Simarouba glauca seed shell powder

Biosorption of methylene blue from aqueous solutions by modified mesoporous Simarouba glauca seed shell powder

Two-stage batch sorber design and optimization of biosorption conditions by Taguchi methodology for the removal of acid red 25 onto magnetic biomass

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

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