Kinetics and thermodynamic study of phosphate adsorption on iron hydroxide-eggshell waste

Mezenner, N. Yeddou; Bensmaılı, A.

doi:10.1016/j.cej.2008.06.024

Cited by 446 publications

(223 citation statements)

References 36 publications

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“…A comparison of the adsorption capacities observed in this work with those from other studies is given in Table 2 ( Li et al, 2006;Mezenner and Bensmaili 2009;Köse and Kıvanç, 2011;Zhang et al, 2012;Zhao et al, 2012b). The maximum adsorption capacity of phosphate onto GA was 36.9 mg/g (pH: 3.22), and the maximum adsorption capacities of phosphate onto various other adsorbents were in the range of 2.0 -63.2 mg/g (pH: 5 -7).…”

Section: Comparison Of the Adsorption Capacitiesmentioning

confidence: 64%

Granulation of Boehmite without a Binder and its Capacity for Phosphate Adsorption in Aqueous Solution

Ogata

Tominaga

Iwata

et al. 2013

J. of Wat. ^|^ Envir. Tech.

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In this study, GA (granulated aluminum oxyhydroxide) was prepared from aluminum oxyhydroxide without a binder, and its phosphate adsorption capacity was investigated. Scanning electron microscopy images, specific surface area, pore volume, mean pore diameter, and solution pH of GA were analyzed. The amount of phosphate adsorbed was studied using batch techniques, and was shown to increase at higher temperatures. Moreover, adsorption isotherms were fitted to both the Freundlich equation (correlation coefficient: 0.866 -0.972) and the Langmuir equation (correlation coefficient: 0.993 -0.999). Adsorption equilibrium was reached within 24 h. The kinetic data for adsorption was best described by a pseudo-first-order rate equation. A pH of about 3 was the most suitable for phosphate adsorption. Moreover, the adsorption mechanism of phosphate onto GA could be related to the specific surface area and surface hydroxyl groups on GA. Both adsorption and desorption could be performed on GA using NaOH at different concentrations. These results suggest that the GA prepared in this work is appropriate for practical applications.

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Section: Comparison Of the Adsorption Capacitiesmentioning

confidence: 64%

Granulation of Boehmite without a Binder and its Capacity for Phosphate Adsorption in Aqueous Solution

Ogata

Tominaga

Iwata

et al. 2013

J. of Wat. ^|^ Envir. Tech.

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“…From P surface loading and spectroscopic analysis results, Shin et al (2005) claimed that ion exchange and surface precipitation could contribute to the elimination of P by La(III) treated juniper bark fiber. Similary, physisorption and chemisorption mechanisms are found to co-exist in the studies conducted by Mezenner and Bensmaili (2009) ;Huang et al (2010); Benyoucef and Amrani (2011). In a more recent study, Karachalios (2012) explored that the adsorption process of PO4 3-onto quaternized pine bark residues resulted from both boundary layer and intra-particle diffusion mechanisms.…”

Section: Co-existing Mechanismsmentioning

confidence: 78%

“…The better PO4 3-removal efficiency at higher AWBs dose was explained by more binding sites for PO4 3-adsorption and larger surface area available at higher dose of AWBs (Xu et al 2009;Kose and Kivanc 2011;Zhang et al 2012). The reduction in the PO4 3-removal efficiency when the AWBs dose exceeded the optimum dose could be attributed to the resistance to mass transfer, particle aggregates and repulsive forces between binding sites at higher dose (Mezenner and Bensmaili 2009;Riahi et al 2009;Ismail 2012). On the contrary, an increase in the dose of AWBs results in a reduction in P uptake capability.…”

Section: Effect Of Awbs Dosagementioning

confidence: 93%

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Agricultural By-Products for Phosphorous Removal and Recovery from Water and Wastewater: A Green Technology

Ngo

Guo

Nguyen

et al. 2016

Green Technologies for Sustainable Water Management

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“…It is needed for the growth of algal and other biological organisms (Xiong et al, 2011;Yeddou and Bensmaili, 2009) Phosphorus in natural waters is dissolved and particulate form. They exist as polyphosphates, orthophosphates and organic phosphates in aqueous solution (Czelej et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Equilibrium Studies and Optimization of Phosphate Adsorption from Synthetic Effluent Using Acid Modified Bio-Sorbent

Kamoru¹,

Dominic²

2017

American Journal of Engineering and Applied Sciences

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Adsorption potential of periwinkle shell (PRW), an agricultural waste, for the removal of phosphate from aqueous solution was investigated through equilibrium studies at various experimental conditions. PRW was carbonized and chemically activated with 1MH 2 SO 4 before it was subjected to characterization using Fourier Transform Infrared (FT-IR), Energy Dispersive X-ray (EDX) and Scanning Electron Microscopy (SEM). Adsorption data were analyzed using various kinetic and isotherm models. Statistical modeling through Central Composite Design (CCD) was also employed. The results showed that, FT-IR spectrum of the activated PRW shows many absorption peaks and a variety of functional groups such as -OH, -NH, C = O, C-H, C-N, CH 3 and CH 2 which explains its improved adsorption behavior on the colloidal particles. SEM shows the morphological changes with respect to the shape and sizes of the adsorption sites.EDX indicates the higher percentage composition of carbon (11.66%), Oxygen (63.18%) as important constituent elements for adsorption. Equilibrium data were well fitted to pseudo second order kinetic model and were best described by Langmuir Isotherm model at the temperature of 303K. Removal efficiency of 95.90% was obtained. A statistical model equation was developed for the adsorption process which reveals contact time as the most significant main effect for performance of the adsorbent.

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Kinetics and thermodynamic study of phosphate adsorption on iron hydroxide-eggshell waste

Cited by 446 publications

References 36 publications

Granulation of Boehmite without a Binder and its Capacity for Phosphate Adsorption in Aqueous Solution

Granulation of Boehmite without a Binder and its Capacity for Phosphate Adsorption in Aqueous Solution

Agricultural By-Products for Phosphorous Removal and Recovery from Water and Wastewater: A Green Technology

Equilibrium Studies and Optimization of Phosphate Adsorption from Synthetic Effluent Using Acid Modified Bio-Sorbent

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