Biosorption of dyes using dead macro fungi: Effect of dye structure, ionic strength and pH

Maurya, Nityanand Singh; Mittal, Atul K.; Cornel, Peter; Rother, Elmar

doi:10.1016/j.biortech.2005.02.045

Cited by 361 publications

(166 citation statements)

References 42 publications

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“…Most of the reported literatures about the effect of ionic strength were evaluated at the Na ? concentration ranging from 0.1 to 1.0 mol L -1 (Chiou and Li 2003;Al-Degs et al 2008;Maurya et al 2006). But, the adsorption capacity of biochar for acid black 172 was found to have little decrease even at a very high NaNO 3 concentration (3.0 and 5.0 mol L -1 in Fig.…”

Section: Effect Of Ionic Strength On Adsorptionmentioning

confidence: 92%

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Evaluation of adsorption potential of bamboo biochar for metal-complex dye: equilibrium, kinetics and artificial neural network modeling

Yang

Lin

Wei³

et al. 2013

Int. J. Environ. Sci. Technol.

154

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Metal-complex dyes are widely used in textile industry, but harmful to the environment and human health due to aromatic structure and heavy metal ions. The objective of this work was to evaluate the adsorption potential of bamboo biochar for the removal of metalcomplex dye acid black 172 from solutions. Freundlich model was more suitable for the adsorption process of bamboo biochar than Langmuir isotherm, indicating multilayer adsorption of acid black 172 on a heterogeneous bamboo biochar surface. Adsorption kinetics analysis of pseudo-second-order and Weber-Morris models revealed that intraparticle transport was not the only rate-limiting step. The bamboo biochar exhibited a good adsorption performance even at high ionic strength. Analysis based on the artificial neural network indicated that the temperature with a relative importance of 29 % appeared to be the most influential parameter in the adsorption process for dye removal, followed by time, ionic strength, pH and dye concentration.

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Section: Effect Of Ionic Strength On Adsorptionmentioning

confidence: 92%

“…SO 4 2-, etc. ), which may significantly affect the performance of the adsorption process (Maurya et al 2006). Therefore, NaNO 3 was used to evaluate the adsorption potential of bamboo biochar for dyes from aqueous solution.…”

Section: Effect Of Ionic Strength On Adsorptionmentioning

confidence: 99%

Evaluation of adsorption potential of bamboo biochar for metal-complex dye: equilibrium, kinetics and artificial neural network modeling

Yang

Lin

Wei³

et al. 2013

Int. J. Environ. Sci. Technol.

154

View full text Add to dashboard Cite

show abstract

“…The textile industry is notable among the industries that produce effluents with high pollution loads, commonly composed of organic molecules and complex salts (Koyuncu and Topacik, 2003). The environmental problems caused by dyeing effluents are even more serious when unfixed or non-degraded dyes from conventional treatment processes are discharged, since they have a potentially high environmental impact on water bodies due to their toxicity (Maurya et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of the Dye Reactive Blue 5g in Retorted Shale

Lambrecht

Barros

Arroyo

et al. 2015

Braz. J. Chem. Eng.

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-In this study the influence of the volumetric flow rate and feed concentration was investigated for the adsorption of the reactive dye Blue 5G. Experiments were carried out in a bed packed with retorted shale, at 30 o C. The ranges investigated were flow rate 2 -10 mL/min and the feed concentration 13-105 mg/L. Mathematical models were used to represent the dynamic sorption. The double resistance model considers the effects of the axial dispersion and the mass transfer resistance of the external film and inside the particles. As a result, the mass transfer coefficient of the external film and the internal mass transfer coefficient were estimated. The Thomas model was used to simulate the experimental data. In this model the fitted parameter was the adsorption kinetic constant. The first model provided an acceptable representation of the dynamic uptake of the reactive dye Blue 5G.

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“…The equilibrium adsorption isotherm provides basic information in explaining the interactive behaviour between a sorbate and a sorbent, which is important in the design and analysis of sorption systems (Maurya et al 2006;Namasivayam and Sureshkumar 2008). Figure 4 shows isotherm plots constructed for both MB and MV dyes as a function of the initial dye concentration within the range of 0-1000 ppm.…”

Section: Sorption Isotherm Studies Of Mb and MV On Breadfruit Peel Anmentioning

confidence: 99%

Biosorption of cationic dyes on breadfruit (Artocarpus altilis) peel and core

et al. 2018

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The purpose of this research is to investigate biosorption characteristics of two cationic dyes, methylene blue (MB) and methyl violet 2B (MV), on breadfruit (Artocarpus altilis) peel and core. Characterization of breadfruit waste was conducted using surface titrations, thermogravimetry, and Fourier transform infrared spectroscopy. The extent of interaction between dyes and each biosorbent was monitored by absorbance measurements, which was then used in isotherm, thermodynamics, and kinetics analysis. Biosorption of MB and MV on breadfruit peel and core reaches equilibrium in 150-180 min. All four systems under investigation (MB-breadfruit peel, MB-breadfruit core, MV-breadfruit peel, and MV-breadfruit core) show similar extent of dye removal of about 80% under the conditions employed. Biosorption of both dyes on both biosorbents follow the Langmuir adsorption isotherm model at the ambient pH, at which the breadfruit surface bears a negative charge. Kinetics of biosorption of MB on breadfruit waste is so fast that it is not possible to determine the order of adsorption kinetics at the concentration level employed. The rate of biosorption of MV on breadfruit waste is smaller and follows pseudo second order kinetics with rate constants of 153.5 and 31.7 g mmol −1 min −1 for peel and core, respectively. Thermodynamics studies conducted for each biosorption system provide negative ΔG Θ , ΔH Θ and ΔS Θ values with the maximum biosorption for MB at the ambient temperature of 24 °C, while that for MV is obtained between 40 and 50 °C. All four biosorption systems show spontaneity and exothermic behaviour to varying degrees.

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Biosorption of dyes using dead macro fungi: Effect of dye structure, ionic strength and pH

Cited by 361 publications

References 42 publications

Evaluation of adsorption potential of bamboo biochar for metal-complex dye: equilibrium, kinetics and artificial neural network modeling

Evaluation of adsorption potential of bamboo biochar for metal-complex dye: equilibrium, kinetics and artificial neural network modeling

Adsorption of the Dye Reactive Blue 5g in Retorted Shale

Biosorption of cationic dyes on breadfruit (Artocarpus altilis) peel and core

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