Application of response surface methodology for optimization of dissolved solids adsorption by activated coal

Ani, Julius U.; Okoro, Uchechukwu C.; Aneke, L. E.; Onukwuli, O. D.; Obi, I. O.; Akpomie, Kovo G.; Ofomatah, Anthony C.

doi:10.1007/s13201-019-0943-7

Cited by 45 publications

(20 citation statements)

References 23 publications

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“…They are in contrast with results suggested by other studies. Which found that adsorption efficiency increased as both the pH and adsorption time increased up to a point and then decreased (Hameed et al 2008;Ani et al, 2019).…”

Section: Response Surface Plotsmentioning

confidence: 96%

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Use of Response Surface Methodology for Optimization of Nickel Adsorption in an Aqueous Solution by Clay

Turki¹,

Boujelben²,

Bakari³

et al. 2021

American Journal of Environmental Sciences

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In this study, Scanning Electron Microscopy (SEM), X-ray diffraction and BET surface area (SBET) methods were employed to characterize the adsorbent. Response Surface Methodology (RSM) was consider as a good method to assess Ni adsorption treatment and Box-Behnken design was used to examine simultaneous the effects of different experimental variables (pH, adsorbent dosage, contact time). Experimental results showed high adsorption efficiency. Statistical analysis showed a high correlation coefficient (R 2 value 0.9578). It was showed that adsorption efficiency raised as contact time and adsorbent dosage raised. The best results were acquired with optimum conditions. A contact time of 120 min and an adsorbent dose of 0.5 mg L -1 give the highest adsorption capacity. The similarity between observed and predicted values sustains the relevance of the model to estimate the adsorption process. It was suggested that Langmuir and Freundlich isotherm models fitted for Nickel adsorption process (R 2 values ranged between 0.92 and 0.99). The results showed that adsorption efficiency increased as temperature increase. Mostly, Tunisian clay may be assessed as powerful adsorbent for the adsorption of Nickel from aqueous solution.

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Section: Response Surface Plotsmentioning

confidence: 96%

“…With time, the adsorbent sites may be obstructed. That being so, the equilibrium was reached when the totality of surface area was blocked (Ani et al, 2019).…”

Section: Response Surface Plotsmentioning

confidence: 97%

Use of Response Surface Methodology for Optimization of Nickel Adsorption in an Aqueous Solution by Clay

Turki¹,

Boujelben²,

Bakari³

et al. 2021

American Journal of Environmental Sciences

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show abstract

“…Since second-order polynomial regression model equation is known to be best suited for CCB (Anupam et al, 2011;Ackay and Anagun, 2013;Daoud et al, 2015;Sada, 2018;Ani et al, 2019), the removal efficiency of Pb 2+ was therefore represented in terms of the independent variables as:…”

Section: Optimization Of Operating Conditions For Pb 2+ Removalmentioning

confidence: 99%

Use of Reactivated Spent FCC Catalyst as Adsorbent for Lead (II) Ions from Refinery-based Simulated Wastewater

Abubakar¹,

Waba²,

Yunusa³

et al. 2021

Aceh Int. J. Sci. Technol

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Improper handling of wastewater from various industries causes environmental pollution. Hence, this study involved using a reactivated spent FCC catalyst, a cheap and reliable adsorbent for Pb2+ removal from refinery-based simulated wastewater. In contrast, response surface methodology (RSM) was used to determine the optimum operating condition. The adsorptive capacity of the reactivated spent FCC catalyst was observed using different parameters such as temperature, pH, adsorbent dosage, and contact time. At the end of the study, it was found that the optimum condition for removing Pb2+ was at pH of 7, adsorbent dose of 1.75 g, contact time of 75 mins, and temperature of 117 oC. At this condition, the maximum removal efficiency of Pb2+ was found to be 100 %. A quadratic model equation via central composite design under the RSM was developed to predict the Pb2+ removal from all the input parameters. Based on the F-statistic values, the temperature had the greatest influence on the removal of Pb2+ while adsorbent dosage and contact time were also significant.

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“…The coefficient of determination R 2 was found to be 0.99 indicating that the predicting response of the model is good. 41,42 Regression model and analysis of variance (ANOVA)…”

Section: Morphological Studiesmentioning

confidence: 99%

Synthesis and evaluation of the oil removal potential of 3-bromo-benzimidazolone polymer grafted silica gel

et al. 2021

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Application of response surface methodology for optimization of dissolved solids adsorption by activated coal

Cited by 45 publications

References 23 publications

Use of Response Surface Methodology for Optimization of Nickel Adsorption in an Aqueous Solution by Clay

Use of Response Surface Methodology for Optimization of Nickel Adsorption in an Aqueous Solution by Clay

Use of Reactivated Spent FCC Catalyst as Adsorbent for Lead (II) Ions from Refinery-based Simulated Wastewater

Synthesis and evaluation of the oil removal potential of 3-bromo-benzimidazolone polymer grafted silica gel

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