Biosorption of chromium(VI) from industrial wastewater onto pistachio hull waste biomass

Moussavi, Gholamreza; Barikbin, Behnam

doi:10.1016/j.cej.2010.06.032

Cited by 229 publications

(125 citation statements)

References 33 publications

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“…The decrease in the rate of Cr (VI) uptake at adsorbent dose greater that 2 mg/L may be due to competition of the Cr (VI) ion for the sites available [42]. Similar results are also reported by researchers for a variety of batch experiments on sorption [29,36,[43][44][45]. …”

Section: Effect Of Biosorbent Dosage On Cr (Vi) Uptakesupporting

confidence: 75%

“…The decrease in adsorption at high pH values may be due to the competitiveness of the oxyanion of chromium and OH -ions in the bulk. These results suggest that pH affects the solubility of metals and the ionization state of the functional groups like carboxylate, phosphate and amino groups of the cell walls of the biosorbent [34][35][36][37]. …”

Section: Batch Biosorption Experiments 321 Effect Of Ph On Cr (Vi) mentioning

confidence: 92%

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Removal of chromium (VI) from aqueous solution using chemically modified orange (citrus cinensis) peel

Mandina¹

2013

IOSR-JAC

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of Cr (VI) ions increased with increase in contact time and remained constant after an equilibrium time of 180 min. The removal of Cr (VI) ions increased with increase in biosorbent concentration with the optimal adsorbent dosage at 4.0 mg/L. The increase in initial Cr (VI) ion concentration led to an increase in the percentage removal of Cr (VI). The adsorption data fitted well with the Freundlich isotherm model with

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Section: Effect Of Biosorbent Dosage On Cr (Vi) Uptakesupporting

confidence: 75%

Section: Batch Biosorption Experiments 321 Effect Of Ph On Cr (Vi) mentioning

confidence: 92%

Removal of chromium (VI) from aqueous solution using chemically modified orange (citrus cinensis) peel

Mandina¹

2013

IOSR-JAC

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“…When the solution pH is less than pHzpc, the surface is positively charged and the sorption of cationic metal will be less. But, when the pH is more than pHzpc, the surface charges become more negative favouring better interaction with the metal [10]. The optimal pH was found to be 7.0.…”

Section: A Effect Of Phmentioning

confidence: 96%

“…Biosorption is being demonstrated as a useful alternative to conventional systems for the removal of toxic metals from industrial effluents. Adsorption of copper, zinc, lead and cadmium onto the carbon produced from nutshells of walnut, hazelnut, pistachio, almond, and apricot stone has been investigated [10]. In this background, this research study is aimed at utilisation of protonated pistachio hull waste as an alternative biosorbent for the removal of mercury from its aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Mercury onto Protonated Pistachio Hull Wastes – Effect of Variables and Kinetic Experiments

Rajamohan¹

2014

IJCEA

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Abstract-Batch parametric experiments were performed to study the applicability of protonated pistachio hull waste as a sorbent with respect to the effect of pH of the solution, initial metal concentration, sorbent dosage and temperature on the metal removal efficiency. Optimum conditions for mercury removal were found to be pH 7.0 and adsorbent dose -1.0 g/L .The metal uptake increased with increase in the initial concentration of the metal. The sorption process was identified as endothermic in nature favouring use of high temperature. The kinetic studies revealed that pseudo-second order model fitted well and the constants were determined. The pseudo-second order rate constant and maximum uptake capacity were found as 1.99 × 10 -3 g mg -1 min -1 and 48.78 mg g -1 with 50 mg L -1 metal concentration. Thermodynamic studies were conducted and the activation energy for the adsorption of mercury onto was found to be 10.26 KJ/ mol. Index Terms-Absorbent, metal removal, pistachio hull waste.

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“…1a) indicates the strong band of O-H functional groups at 3612.29 cm -1 wavelength (Kamsonlian et al 2011;Srivastava et al 2015). Adsorption band at around 1989-1654.67 cm -1 indicates the C=O group (Moussavi and Barikbin 2010). Furthermore, peaks at 1396.67 and 1095.67 cm -1 were significance of C-O and N-H stretching (Mohan et al 2006).…”

Section: Characterization Of Biosorbentmentioning

confidence: 99%

Statistical optimization of process parameters for the simultaneous adsorption of Cr(VI) and phenol onto Fe-treated tea waste biomass

Gupta

Balomajumder

2017

Appl Water Sci

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In this study, simultaneous removal of Cr(VI) and phenol from binary solution was carried out using Fetreated tea waste biomass. The effect of process parameters such as adsorbent dose, pH, initial concentration of Cr(VI) (mg/L), and initial concentration of phenol (mg/L) was optimized. The analysis of variance of the quadratic model demonstrates that the experimental results are in good agreement with the predicted values. Based on experimental design at an initial concentration of 55 mg/L of Cr(VI), 27.50 mg/L of phenol, pH 2.0, 15 g/L adsorbent dose, 99.99% removal of Cr(VI), and phenol was achieved.

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Biosorption of chromium(VI) from industrial wastewater onto pistachio hull waste biomass

Cited by 229 publications

References 33 publications

Removal of chromium (VI) from aqueous solution using chemically modified orange (citrus cinensis) peel

Removal of chromium (VI) from aqueous solution using chemically modified orange (citrus cinensis) peel

Biosorption of Mercury onto Protonated Pistachio Hull Wastes – Effect of Variables and Kinetic Experiments

Statistical optimization of process parameters for the simultaneous adsorption of Cr(VI) and phenol onto Fe-treated tea waste biomass

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