Application of ‘waste’ wood-shaving bottom ash for adsorption of azo reactive dye

Leechart, Piyawan; Nakbanpote, Woranan; Thiravetyan, Paitip

doi:10.1016/j.jenvman.2008.02.005

Cited by 113 publications

(70 citation statements)

References 24 publications

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“…A majority of the used dyes are azo reactive dyes [1] . These are bright color dyes due to the presence of one or several azo (-N = N-) groups associated with substituted aromatic structures [2] .…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, dyes in wastewater are difficult to remove because they are stable to light, heat and oxidizing agents. In short, they are not easily degradable [1,5] . In order to achieve a high degree of dye removal from wastewater systems, it is necessary to integrate biological, chemical and physical processes such as coagulation, ultra-filtration, electro-chemical adsorption and photo-oxidation [6] .…”

Section: Introductionmentioning

confidence: 99%

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The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Haris¹,

Sathasivam²

2009

American J. of Applied Sciences

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Problem statement:The aim of this study was to investigate the removal of methyl red, a mutagenic monoazo dye, from various aqueous solutions using banana pseudostem fibers of the size 212-350 micron. Approach: The parameters studied were the effect of pH, amount of adsorbent, contact time, concentration of adsorbate and agitation speed. Results: Equilibrium data were fitted to the Langmuir and Freundlich isotherm models. The data were best represented by the latter with an adsorption capacity and adsorption intensity of 0.351 and 0.302, respectively. Conclusion/Recommendations: Specific rate constants of the processes were calculated by kinetic measurements and a pseudo second order adsorption kinetics was obtained for all cases.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Haris¹,

Sathasivam²

2009

American J. of Applied Sciences

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“…As for BWS model itself, it has a good fitting performance and more implicitly, which were estimated aimed at industrial treatment design purposes [36]. Avrami exponent (n av ) (0.55 for phenol and 0.40 for cyanide) is a fractionary number connected with the possible variations of the biosorption mechanism that happens all over the biosorption process [37,38]. The value of low error values (MPSD) for pseudo-second-order model estimates that possible route or mechanism of biosorption of phenol and cyanide on sugarcane bagasse is chemisorption.…”

Section: Kinetic Modelingmentioning

confidence: 99%

Biosorption of Phenol and Cyanide from Synthetic/Simulated Wastewater by Sugarcane Bagasse—Equilibrium Isotherm and Kinetic Analyses

Singh

Balomajumder

2017

Water Conserv Sci Eng

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Sugarcane bagasse biosorbents were tested for biosorption of phenol and cyanide from synthetic/simulated wastewater. The influence of pH, biosorbent dose, temperature, contact time, and initial concentration of phenol and cyanide was investigated. At an optimum temperature 30°C, pH 7, and the biosorbent dose of 40 g/L, 66.78% phenol and 79.30% cyanide were removed from binary aqueous solution containing 300 mg/L of phenol and 30 mg/L of cyanide. The equilibrium state was achieved after about 34 and 32 h, respectively, for phenol and cyanide at a temperature of 30°C. The extended Freundlich model fits the binary equilibrium data suitably for both phenol and cyanide. The kinetic modeling results showed that fractal-like models and BrouserWeron-Sototlongo for phenol and cyanide were capable to provide realistic explanation of biosorption kinetic. Biosorption of phenol and cyanide followed pseudo-secondorder kinetics, indicating chemisorption to be the mechanism of biosorption. The present study provides a new insight for the removal of phenol and cyanide onto sugarcane bagasse.

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“…Due to the large surface area and carbon content of carbon residues, it could be used to replace activated carbon or zeolites in environmental applications, or used in air and water pollution treatment as sorbent (Ahmaruzzaman 2010;Kilpimaa et al 2012;Leechart et al 2009;Sun et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Characterization and Utilization Potential of Wood Ash from Combustion Process and Carbon Residue from Gasification Process

2013

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The aim of this research was to study the physical and chemical properties of fly ashes from combustion process and carbon residue from gasification process whilst comparing the results between these two types of solid residues, as well as against literature values. Ashes from the combustion process and carbon residue from gasification process are formed in different conditions, and it can be assumed that they will be best suited to contrasting utilization applications. The most notable differences between these types of solid residues were that the carbon content and loss-on-ignition value was higher for gasification carbon residue, and the liming capacity was higher for combustion ashes. The calculated liming capacity for combustion ashes and the fact that these ashes were strongly alkaline, together with high nutrient concentrations, indicate that combustion ashes can provide a liming effect. As a result, these ashes could potentially be utilized as a soil conditioning agent to substitute for commercial lime. The carbon content in gasification carbon residue was high which indicates, together with high porosity, that carbon residue would be an ideal sorbent and it could also be used as a fuel.

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Application of ‘waste’ wood-shaving bottom ash for adsorption of azo reactive dye

Cited by 113 publications

References 24 publications

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Biosorption of Phenol and Cyanide from Synthetic/Simulated Wastewater by Sugarcane Bagasse—Equilibrium Isotherm and Kinetic Analyses

Characterization and Utilization Potential of Wood Ash from Combustion Process and Carbon Residue from Gasification Process

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