Adsorption studies on Citrus reticulata (fruit peel of orange): removal and recovery of Ni(II) from electroplating wastewater

Ajmal, Mohammad; Rao, Rifaqat Ali Khan; Ahmad, Rais; Jamal, Anwar

doi:10.1016/s0304-3894(00)00234-x

Cited by 438 publications

(177 citation statements)

References 18 publications

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“…The essential characteristics of the Langmuir isotherm parameters can be used to predict the affinity between the sorbate and sorbent using separation factor or dimensionless equilibrium parameter, R L, expressed as in the following Eq. [4]:…”

Section: Langmuir Isothermmentioning

confidence: 99%

“…In recent years, the searches for low-cost agricultural by-products have been widely studied for metal ion removal from water and wastewater. These include Citrus reticulata [4], maize cob [5], Tectona grandis leaves [6], neem biomass [7], Eucalyptus camaldulensis leaves [8], rice straw [9], rice husk [10], Eucalyptus bark, mango bark and pine apple fruit peel [11], Moringa oleifera bark [12], hazelnut, almond and walnut shells [13], Pinus gerardiana leaves [14], Cynodon dactylon, Psidium guajava, Azadirachta indica, Cassia tora and Cassia angustifolia leaves [15], coconut leaves [16], Ashoka leaf [17], Ceratonia siliqua bark [18] and Eriobotrya japonica bark [19]. This paper presents the study of biosorption characteristics of Sophora japonica pods powder (Sjp) for the removal of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solution in batch process.…”

Section: Introductionmentioning

confidence: 99%

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Biosorption of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solution by Sophora japonica pods powder

2015

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Background Biosorption of Cu (II), Ni(II), Zn(II) and Pb(II) ions from aqueous solutions onto Sophora japonica pods powder has been studied using batch adsorption technique. The biosorption studies were determined as a function of pH, contact time, initial metal ion concentration, biosorbent dosage and temperature. Results The kinetic study showed that the biosorption of the Cu(II), Ni(II), Zn(II) and Pb(II) ions followed pseudosecond-order kinetic model. Experimental data obtained were analyzed with Langmuir, Freundlich, Dubinin-Radushkevich and Temkin isotherm models and in each case the Langmuir model appears to have better regression coefficients. Thermodynamic parameters: DG°, DH°and DS°were calculated indicating that the biosorption of Cu(II), Ni(II), Zn(II) and Pb(II) ions is spontaneous and endothermic process. Conclusions The results of the study showed that Sophora japonica pods powder can be efficiently used as a low-cost alternative for the removal of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solutions.

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Section: Langmuir Isothermmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biosorption of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solution by Sophora japonica pods powder

2015

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“…In order to describe thermodynamic behaviour of the biosorption of metal ions onto C. siliqua bark, thermodynamic parameters including the change in free energy (∆G•), enthalpy (∆H•) and entropy (∆S•) were calculated from following equations [31,32]:…”

Section: Thermodynamic Parametersmentioning

confidence: 99%

Kinetic, Equilibrium and Thermodynamic Studies of the Biosorption of Heay Metals by Ceratonia Siliqua Bark

Farhan¹,

Salem²,

Ahmad³

et al. 2013

CHEMISTRY

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Biosorption of Zn(II), Ni(II), Cu(II) and Cd(II) ions from aqueous solutions onto Ceratonia siliqua (Carob tree) bark has been investigated in a batch biosorption process. The biosorption process was found to be dependent on pH of solution, initial metal ion concentration, biosorbent dose, contact time and temperature. The experimental equilibrium biosorption data were analyzed by Langmuir, Freundlich, Temkin and Dubinin-Radushkevic isotherm models. The Langmuir model gave a better fit than the other three models by higher correlation coefficient, R 2 . The maximum biosorption capacity calculated from the Langmuir isotherm was 42.19 mg/g, 31.35 mg/g, 21.65 mg/g and 14.27 mg/g for Ni(II), Zn(II), Cu(II) and Cd(II), respectively at optimum conditions. The kinetic studies indicated that the biosorption process of the metal ions followed well pseudo-second-order model. The negative values of ∆G o and the positive ∆H o revealed that the biosorption process was spontaneous and endothermic. According to the biosorption capacity, Ceratonia siliqua bark considered as an effective, low cost, and environmentally friendly biosorbent for the removal of metal ions ions from aqueous solutions.

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“…where the K (mg g-1) and n (value between 0 and 1) are the Freundlich constant characteristic on the system. K and n are indicators for adsorption capacity and adsorption intensity, respectively [14][15][16][17][18][19][20][21][22].…”

Section: Equilibrium Studiesmentioning

confidence: 99%

Diminution of Toxic Ions by using Mangifera Indica Foliages as Adsorption from Textile Effluent

2017

IJASRE

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Adsorption studies on Citrus reticulata (fruit peel of orange): removal and recovery of Ni(II) from electroplating wastewater

Cited by 438 publications

References 18 publications

Biosorption of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solution by Sophora japonica pods powder

Biosorption of Cu(II), Ni(II), Zn(II) and Pb(II) ions from aqueous solution by Sophora japonica pods powder

Kinetic, Equilibrium and Thermodynamic Studies of the Biosorption of Heay Metals by <i>Ceratonia </i><i>Si</i><i>liqua</i> Bark

Diminution of Toxic Ions by using Mangifera Indica Foliages as Adsorption from Textile Effluent

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