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A User’s Guide

Guidelines for the use and interpretation of adsorption isotherm models: A review.

Olive mill wastes: Biochemical characterizations and valorization strategies

https://opus.lib.uts.edu.au/bitstream/10453/37111/4/Review%20Typical%20Lignocellulosic%20Wastes%20%28BITE%2012760%29.pdf

Typical lignocellulosic wastes and by-products for biosorption process in water and wastewater treatment: a critical review.

Industries generating wastewater with elevated concentrations of pollutants (e.g. metals, dyes, phenolic compounds, anions, etc.) need specialized atreatment systems. Adsorption is one of the most extensively applied techniques for the removal of pollutants from the industrial effluents. The prominent and emerging trend of subjecting biosorbent in the adsorption technology is mainly because of their natural existence, abundance, renewable, biodegradable and economic features. The adsorption isotherm equations used to describe the experimental data and the thermodynamic assumptions of the models often provide some insight into the sorption mechanism, the surface properties and affinity of the biosorbent. This paper presents a state of the art on the review of adsorption isotherm models in an exhaustive manner on the basis of two, three, four and five parameters respectively. Focuses on the various sources of agricultural byproducts as biosorbents and describes on the potential applications of different adsorption isotherm models for the evaluation of the wastewater pollutants biosorption. It is evident from the literature survey that various adsorption isotherm models have been considered under study by the researchers but mostly two and three parameter isotherm model were best fitted the equilibrium data. This paper reviews the adsorption isotherm models on the basis of parameters that can be applied for exploring a novel biosorbents.

Relevance of isotherm models in biosorption of pollutants by agricultural byproducts

Torrefaction of olive tree pruning: Effect of operating conditions on solid product properties

Characterization of chemically modified biosorbents from olive tree pruning for the biosorption of lead

In this study, the effect of Pb(II) in biosorption of Cu(II) by almond shell from a binary metal mixture was studied and compared with the single metal ion situation in a batch stirred system and in a continuous system. It was observed that copper biosorption yields and copper equilibrium uptakes were slightly reduced by the presence of lead. This antagonistic action can be related with competition phenomena between metal cations in solution for active sites presented on almond shell. The affinity of Pb(II) for almond shell was higher than that of Cu(II). In binary systems in a batch stirred system, extended Langmuir model and extended Sips model were used to fitting experimental data. Biosorption equilibrium data fitted very well to both models in the concentration range studied. But, although differences between the fitting of these two models were insignificant, it was obtained that extended Sips model reproduced better the experimental results than the Langmuir one. The maximum biosorption capacities obtained for Cu(II) and Pb(II) were approximately 9.0 mg/g and 13.7 mg/g, respectively, Finally, breakthrough curves for continuous removal of Cu(II) from single and binary metal solutions were reported. Column competitive biosorption data were evaluated in terms of the biosorption (equilibrium) capacity of the column, the amount of metal loading on almond shell surface, the total biosorption yield, breakthrough and exhausted time.

A. Ronda

Papers

Torrefaction of olive tree pruning: Effect of operating conditions on solid product properties

Characterization of chemically modified biosorbents from olive tree pruning for the biosorption of lead

Effect of lead in biosorption of copper by almond shell

Multiple biosorption–desorption cycles in a fixed-bed column for Pb(II) removal by acid-treated olive stone

Binary biosorption of copper and lead onto pine cone shell in batch reactors and in fixed bed columns