Relevance of isotherm models in biosorption of pollutants by agricultural byproducts

Rangabhashiyam, S.; Anu, N.; Nandagopal, M. S. Giri; Selvaraju, N.

doi:10.1016/j.jece.2014.01.014

Cited by 414 publications

(197 citation statements)

References 194 publications

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“…An adsorption surface assumption, considered in Jovanovic isotherm model [21] corresponds to another approximation for monolayer localized adsorption without lateral interactions. This model is similar to that of Langmuir model, except that the allowance is made in the former for the surface binding vibrations of an adsorbed species.…”

Section: ) the Jovanovic Isothermmentioning

confidence: 99%

Equilibrium and Kinetics Studies of adsorption of Copper (II) Ions on Natural Biosorbent

Farouq¹,

Yousef²

2015

IJCEA

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Abstract-The Biosorption of Copper (II) ions from aqueous solution on natural biosorbent (Mussels) has been investigated. Batch shaking adsorption experiments were performed and equilibrium and kinetic isotherms were tested. Results show that Chitin can remove Copper (II) effectively from aqueous solution. To predict the adsorption isotherms and to determine the characteristic parameters for process design, eight isotherm models:Langmuir, Freundlich, Elovich, Temkin, Fowler-Guggenheim, Jovanovic, Koble-Corrigan, and Hill were applied to experimental data. The equilibrium data were analyzed. The results reveal that the adsorption isotherm models fitted the data in the order: Jovanovic > Freundlich , Koble-Corrigan> Temkin> Fowler-Guggenheim> Elovich> Langmuir, Hill. Adsorption kinetic data were tested using pseudo-first order, pseudo-second order and Elovich model. The kinetics of the adsorption were found to fit the Elovich model.

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Section: ) the Jovanovic Isothermmentioning

confidence: 99%

Equilibrium and Kinetics Studies of adsorption of Copper (II) Ions on Natural Biosorbent

Farouq¹,

Yousef²

2015

IJCEA

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“…This technique is able to remove either organic or inorganic pollutants through ionic exchange. Research results highlight the high capacity of sorption and the low cost of this method [80] . Besides biosorption, polymers have also been commonly used as sorbent materials of toxic elements arising from agrochemicals as a way to decontaminate water and soils [81] .…”

Section: Metal Ions Removal From Water and Soilsmentioning

confidence: 96%

Polymers and its applications in agriculture

et al. 2017

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Graphical Abstract RbstractPolymers are a class of soft materials with numerous and versatile mechanical and chemical properties that can be tuned specific to their application. Agriculture is an expanding area due to the requirement for indispensable food to meet the demands of a growing global population. Consequently, development of technology to improve the quality of the soil and agriculture manages is still under development. Intelligent agricultural supplies (controlled or slow release agrochemicals and superabsorbents) and biosorbents contribute to an expanding niche using technology from polymers. This review elucidates the state-of-the-art and will discuss some important aspects of using polymers in intelligent fertilizers, as well as superabsorbent, biosorbent and biodegradation processes in agriculture that are environmentally, technically, socially, and economically sustainable.

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“…Two models were the most accepted for similar studies of adsorption; Langmuir and Freundlich [30,31].…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…According to literature, the most widely applied models for the adsorption of heavy metals on the bioadsorbent are the Langmuir and Freundlich isotherms [30,35,36]. So, the adsorption of the zinc and a lot of other heavy metals on the orange peel xanthate in Table 2.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Electrosorption Removal of the Zinc Ions from Aqueous Solution on an Artificial Electrode based in the Banana Wastes

Benakouche

Bounoughaz

2017

Journal of Electrochemical Science and Technology

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The valorization of domestic wastes becomes a very important research axis that can reduce the energy consumption and protect our environment. The objective of this study is to remove zinc ions from wastewater by using banana peels after their activation as sensor in the working electrode for an environmental application. Banana peels were dried, crushed and treated with sulfuric acid then mixed with polyaniline to improve their electrical conductivity. Cyclic voltammetry and chronoamperometry were used for electrochemistry tests. The obtained voltammogramms at well optimized conditions of applied potential of -1.3 V/SCE and initial zinc concentration of 0.2M during 2 hours of electrolysis, showed the reduction peak of the zinc at a potential of -1.14 V/SCE, which confirmed the activity of this electrode. The modeling of experimental data revealed that the adsorption was fitted by the Langmuir isotherm with a maximal adsorption capacity of 3.4188 mg/g. Changes in the structure of the powder after the electrosorption was noticed by SEM and EDX. Finally, the dosage of the electrolytic solution showed a diminution of the zinc concentration with yield of 99.99%.

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Relevance of isotherm models in biosorption of pollutants by agricultural byproducts

Cited by 414 publications

References 194 publications

Equilibrium and Kinetics Studies of adsorption of Copper (II) Ions on Natural Biosorbent

Equilibrium and Kinetics Studies of adsorption of Copper (II) Ions on Natural Biosorbent

Polymers and its applications in agriculture

Electrosorption Removal of the Zinc Ions from Aqueous Solution on an Artificial Electrode based in the Banana Wastes

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