Adsorption treatment and recovery of the hazardous dye, Brilliant Blue FCF, over bottom ash and de-oiled soya

Gupta, Vinod Kumar; Mittal, Alok; Krishnan, Lisha; Mittal, Jyoti

doi:10.1016/j.jcis.2005.06.021

Cited by 259 publications

(99 citation statements)

References 29 publications

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“…The development of low-cost activated carbon especially from wastes has been the focus of various researches (Gupta et al 2007). Gupta et al (2006) reported the efficient removal of the complex Brilliant Blue FCF dye from water; this is an indication that adsorption using low-cost, non-toxic and readily available adsorbents can stand up to scrutiny besides others but limited decolorization techniques. Velmurugan et al (2011) also reported similar findings on the use of alternative low-cost adsorbent for the removal of Methylene blue.…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology (RSM) for optimization of color removal from POME by granular activated carbon

Al-Khatib

Mamun

Akbar

2014

Int. J. Environ. Sci. Technol.

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Color is one of the major remaining contaminants in the palm oil mill effluent (POME) following the conventional treatment of POME. The removal of color from POME using adsorption on activated carbon was investigated. The adsorption experimental design was performed using the standard response surface method (RSM) design that is central composite design to determine the optimum process variables for color removal by using the Design-Expert software (version 7.0. Stat-Ease, trial version). Besides obtaining optimum values, RSM also has the advantage of studying the interaction between various experimental parameters compared to one-factor-at-a-time. The equilibrium experimental data were analyzed by Langmuir and Freundlich isotherms. The statistical analysis showed that the quadratic model as well as the model terms was significant. The model had very low probability value (0.0003). The R 2 for the model was 0.9184 and the adjusted R 2 was 0.8380. The validation of the model showed experimental value and predicted value of 0.124 and 0.106, respectively. The optimum conditions suggested by the model for the process variable were 87.9 min, 4.05 and 7.86 g, for time, pH and granular activated carbon dose, respectively. The maximum removal obtained at these conditions was 89.95 %. The adsorption isotherm data were fitted well to the Langmuir isotherm compared to Freundlich isotherm with R 2 value of 0.850 for the former and 0.273 for the later.

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Section: Introductionmentioning

confidence: 99%

Application of response surface methodology (RSM) for optimization of color removal from POME by granular activated carbon

Al-Khatib

Mamun

Akbar

2014

Int. J. Environ. Sci. Technol.

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“…Among them, we can include heavy metals, dyes, pesticides, rubber chemicals and diverse industrial wastes and different approaches have been devised in order to reduce them. These strategies include, for example, adsorption to remove heavy metals or dyes (Jain et al 2003;Gupta et al 2006Gupta et al , 2007aGupta et al , 2009Gupta et al , 2010Gupta et al , 2011Mittal et al 2008), photochemical degradation (Gupta et al 2007b), biosorption (Mittal et al 2010) and advanced oxidation process (AOP) (Karthikeyan et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of an aerobic bacterial consortium able to degrade roxarsone

Guzmán‐Fierro

Moraga

León

et al. 2014

Int. J. Environ. Sci. Technol.

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Roxarsone is an organoarsenical compound used as food additive in the poultry industry. Roxarsone has the potential risk to contaminate the environment, mainly by the use of poultry industry manure as fertilizer, releasing inorganic arsenic to the soil and water. The aim of this work was to isolate and characterize a bacterial consortium capable to degrade roxarsone under aerobic conditions. A bacterial consortium was cultured from a soil sample obtained from a field fertilized with poultry litter containing roxarsone. The consortium was cultured in the presence or absence of roxarsone. Roxarsone degradation and growth kinetics were determined by incubation of the bacterial consortium in the presence of roxarsone at room temperature and under aerobiosis. Both consortiums were characterized molecularly by denaturing gradient gel electrophoresis analysis and metabolically using Biolog Ecoplates. Inorganic arsenic was assessed by precipitation with silver nitrate. The consortium was also analyzed by scanning electron microscopy. The results showed that growth rate of the bacterial consortium was 1.4-fold higher in presence of roxarsone and 81.04 % of the roxarsone was transformed after 7 days of incubation. Molecular characterization revealed the presence of different bacterial groups, being alphaproteobacteria and firmicutes the groups that showed the highest count in both consortiums. The metabolic profile of the consortium did not change in the presence of roxarsone, but it showed a greater ability to oxidize amines, suggesting production of functional amines to decrease the stability of the aromatic ring resonance energy, the principal problem associated with aromatic compounds degradation.

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“…Furthermore, the alkyl chain tails of the organic compounds adsorbed parallel to the surface at the interface. Besides, this orientation of the alkyl chains might be contributed to inhibit the interactions between the chains of the organic compounds and reduce the hydrophobic interactions at this region 37,38 . From the experimental data it can be observed that, the adsorptive amounts of the studied organic cations onto Amberlite IR 120 H + resin decreased with increasing the alkyl chain length at low adsorbate concentrations due to the diminution of the electrostatic attractive forces between the studied organic cations and the adsorbent surface.…”

Section: Temkin Isotherm Modelmentioning

confidence: 99%

“…For this reason any further adsorption in this stage was a result of the hydrophobic interaction that was controlled by van der Waals forces. Certainly, as the adsorbate amount increased in solutions, the adsorbent surface became hydrophobic due to the orientation of the alkyl chains perpendicular towards the bulk solution 37,38 . The increase of hydrophobicity on the surface made the system unstable due to increase the system energy.…”

Section: Temkin Isotherm Modelmentioning

confidence: 99%

Adsorption Behavior of some N-alkyl Pyridinium Salts from Aqueous Solution on Amberlite-IR 120 H+ resin

2018

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The effect of Amberlite-IR 120 H + resin to remove some organic compounds (N-alkyl pyridinium salts) from aqueous solutions at certain conditions was investigated. The effect of resin dosage, contact time, adsorbate concentration, ionic strength and solution temperature on the adsorption efficiency was examined. The experimental data collected generally proved that the adsorption efficiency decreased as the alkyl chain increased. The thermodynamic equilibrium parameters of the adsorption processes were evaluated and showed that the adsorption process is spontaneous, disordered and exothermic. Langmuir, Freundlich, Temkin and Dubinin-Radushkevich (D.R) isotherm models were applied based on the batch method. Freundlich, Temkin and D. R gave bilinear segments model based on the adsorbate initial concentrations except that for compound III where it gave straight of one segment for Temkin adsorption isotherm. Overall, Amberlite-IR 120 H + resin is effective in removing some N-alkyl pyridinium salts from an aqueous solution.

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Adsorption treatment and recovery of the hazardous dye, Brilliant Blue FCF, over bottom ash and de-oiled soya

Cited by 259 publications

References 29 publications

Application of response surface methodology (RSM) for optimization of color removal from POME by granular activated carbon

Application of response surface methodology (RSM) for optimization of color removal from POME by granular activated carbon

Isolation and characterization of an aerobic bacterial consortium able to degrade roxarsone

Adsorption Behavior of some N-alkyl Pyridinium Salts from Aqueous Solution on Amberlite-IR 120 H+ resin

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