A natural macroalgae consortium for biosorption of copper from aqueous solution: Optimization, modeling and design studies
[ X ]
Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis Inc
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
In this study, the capacity of a natural macroalgae consortium consisting of Chaetomorpha sp., Polysiphonia sp., Ulva sp. and Cystoseira sp. species for the removal of copper ions from aqueous environment was investigated at different operating conditions, such as solution pH, copper ion concentration and contact time. These environmental parameters affecting the biosorption process were optimized on the basis of batch experiments. The experimentally obtained data for the biosorption of copper ions onto the macroalgae-based biosorbent were modeled using the isotherm models of Freundlich, Langmuir, Sips and Dubinin-Radushkevich and the kinetic models of pseudo-first-order, pseudo-second-order, Elovich and Weber and Morris. The pseudo-first-order and Sips equations were the most suitable models to describe the copper biosorption from aqueous solution. The thermodynamic data revealed the feasibility, spontaneity and physical nature of biosorption process. Based on the data of Sips isotherm model, the biosorption capacity of biosorbent for copper ions was calculated as 105.370 mg g(-1) under the optimum operating conditions. A single-stage batch biosorption system was developed to predict the real-scale-based copper removal performance of biosorbent. The results of this investigation showed the potential utility of macroalgae consortium for the biosorption of copper ions from aqueous medium.
Description
Keywords
Biosorption, copper ions, macroalgae consortium, process modeling, system design
Journal or Series
International Journal of Phytoremediation
WoS Q Value
Q2
Scopus Q Value
Q1
Volume
20
Issue
4
