A comparison of low-cost biosorbents and commercial sorbents for the removal of copper from aqueous media

E L Cochrane, S Lu, Stuart l Gibb, I Villaescusa, Stuart l Gibb

Research output: Contribution to journalArticle

146 Citations (Scopus)

Abstract

Three biosorbents, crab carapace, the macroalgae Fucus vesiculosus and peat were compared with two commercial materials, an activated-carbon and an ion-exchange resin for the removal of copper from aqueous media. Kinetic models of Lagergren first-order, pseudo-second order and intraparticular diffusion were used to model the data. The process for all materials is best represented by the pseudo-second order rate model. Langmuir and Freundlich isotherms were used to describe the sorption equilibrium data. Maximum uptake values were 79.4, 114.9 and 71.4 mg g(-1) for crab carapace, F. vesiculosus and ion-exchange resin, respectively. Langmuir and Freundlich isotherm models could not be fitted to the experimental data for peat and activated-carbon. Ion-exchange was calculated to contribute approximately 75%, 77% and 44% to the total biosorption by crab carapace, F. vesiculosus and peat, respectively. The removal efficiencies of crab carapace and F. vesiculosus were >95% and comparable with those achieved using ion-exchange resin. Results from this study suggest that both crab carapace and F. vesiculosus are efficient and effective biosorbent materials for the removal of copper from aqueous solutions and given that they are also low-cost, may be considered viable alternatives to activated-carbon and ion-exchange resin.
Original languageEnglish
Pages (from-to)198-206
Number of pages9
JournalJournal of Hazardous Materials
Volume137
Issue number1
DOIs
Publication statusPublished - 2006

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Animal Shells
Fucus
Ion Exchange Resins
Ion exchange resins
Sorbents
Peat
Copper
crab
ion exchange
Activated carbon
copper
resin
Costs and Cost Analysis
activated carbon
peat
cost
Soil
Carbon
Isotherms
Costs

Cite this

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abstract = "Three biosorbents, crab carapace, the macroalgae Fucus vesiculosus and peat were compared with two commercial materials, an activated-carbon and an ion-exchange resin for the removal of copper from aqueous media. Kinetic models of Lagergren first-order, pseudo-second order and intraparticular diffusion were used to model the data. The process for all materials is best represented by the pseudo-second order rate model. Langmuir and Freundlich isotherms were used to describe the sorption equilibrium data. Maximum uptake values were 79.4, 114.9 and 71.4 mg g(-1) for crab carapace, F. vesiculosus and ion-exchange resin, respectively. Langmuir and Freundlich isotherm models could not be fitted to the experimental data for peat and activated-carbon. Ion-exchange was calculated to contribute approximately 75{\%}, 77{\%} and 44{\%} to the total biosorption by crab carapace, F. vesiculosus and peat, respectively. The removal efficiencies of crab carapace and F. vesiculosus were >95{\%} and comparable with those achieved using ion-exchange resin. Results from this study suggest that both crab carapace and F. vesiculosus are efficient and effective biosorbent materials for the removal of copper from aqueous solutions and given that they are also low-cost, may be considered viable alternatives to activated-carbon and ion-exchange resin.",
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A comparison of low-cost biosorbents and commercial sorbents for the removal of copper from aqueous media. / Cochrane, E L; Lu, S; Gibb, Stuart l; Villaescusa, I; Gibb, Stuart l.

In: Journal of Hazardous Materials, Vol. 137, No. 1, 2006, p. 198-206.

Research output: Contribution to journalArticle

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