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Potential of Sargassum wightii biomass for copper(II) removal from aqueous solutions: application of different mathematical models to batch and continuous biosorption data.
J Hazard Mater. 2006 Sep 01; 137(1):558-64.JH

Abstract

This paper reports biosorption of copper(II) ions onto Sargassum wightii biomass in batch and continuous mode of operation. Batch experiments were fundamentally aimed to determine the favorable pH for copper(II) biosorption. Langmuir model was used to describe the copper(II) biosorption isotherm and maximum uptake of 115 mg/g was obtained at pH 4.5. Continuous experiments in a packed column (2 cm i.d. and 35 cm height) were performed to study the influence of bed height, flow rate and inlet solute concentration on copper(II) biosorption. The highest bed height (25 cm), lowest flow rate (5 ml/min) and highest inlet Cu(II) concentration (100 mg/l) resulted in highest copper(II) uptake of 52.6 mg/g, compared to other conditions examined. Column data obtained at different conditions were described using the Thomas, Yoon-Nelson and modified dose-response models. All three models were able to predict breakthrough curves; in particular, the breakthrough curve prediction by the Thomas and Yoon-Nelson models were found to be very satisfactory. Also, the well-established design model, the Bed depth-service time (BDST) model was used to analyze the experimental data. The BDST model plot at 5 ml/min (flow rate) and 100 mg/l (inlet solute concentration) was used to predict bed depth-service time data at different conditions. The BDST model predicted values always coincide with experimental values with high correlation coefficients.

Authors+Show Affiliations

Vijayaraghavan K
Department of Chemical Engineering, Anna University, Chennai 600025, India.
Prabu D
No affiliation info available

MeSH

AdsorptionBiomassCopperHydrogen-Ion ConcentrationKineticsMetals, HeavyModels, ChemicalModels, TheoreticalNickelSargassumWaste Disposal, FluidWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16600481

Citation

Vijayaraghavan, K, and D Prabu. "Potential of Sargassum Wightii Biomass for copper(II) Removal From Aqueous Solutions: Application of Different Mathematical Models to Batch and Continuous Biosorption Data." Journal of Hazardous Materials, vol. 137, no. 1, 2006, pp. 558-64.
Vijayaraghavan K, Prabu D. Potential of Sargassum wightii biomass for copper(II) removal from aqueous solutions: application of different mathematical models to batch and continuous biosorption data. J Hazard Mater. 2006;137(1):558-64.
Vijayaraghavan, K., & Prabu, D. (2006). Potential of Sargassum wightii biomass for copper(II) removal from aqueous solutions: application of different mathematical models to batch and continuous biosorption data. Journal of Hazardous Materials, 137(1), 558-64.
Vijayaraghavan K, Prabu D. Potential of Sargassum Wightii Biomass for copper(II) Removal From Aqueous Solutions: Application of Different Mathematical Models to Batch and Continuous Biosorption Data. J Hazard Mater. 2006 Sep 1;137(1):558-64. PubMed PMID: 16600481.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Potential of Sargassum wightii biomass for copper(II) removal from aqueous solutions: application of different mathematical models to batch and continuous biosorption data. AU - Vijayaraghavan,K, AU - Prabu,D, Y1 - 2006/04/05/ PY - 2005/12/30/received PY - 2006/02/17/revised PY - 2006/02/21/accepted PY - 2006/4/8/pubmed PY - 2007/1/11/medline PY - 2006/4/8/entrez SP - 558 EP - 64 JF - Journal of hazardous materials JO - J Hazard Mater VL - 137 IS - 1 N2 - This paper reports biosorption of copper(II) ions onto Sargassum wightii biomass in batch and continuous mode of operation. Batch experiments were fundamentally aimed to determine the favorable pH for copper(II) biosorption. Langmuir model was used to describe the copper(II) biosorption isotherm and maximum uptake of 115 mg/g was obtained at pH 4.5. Continuous experiments in a packed column (2 cm i.d. and 35 cm height) were performed to study the influence of bed height, flow rate and inlet solute concentration on copper(II) biosorption. The highest bed height (25 cm), lowest flow rate (5 ml/min) and highest inlet Cu(II) concentration (100 mg/l) resulted in highest copper(II) uptake of 52.6 mg/g, compared to other conditions examined. Column data obtained at different conditions were described using the Thomas, Yoon-Nelson and modified dose-response models. All three models were able to predict breakthrough curves; in particular, the breakthrough curve prediction by the Thomas and Yoon-Nelson models were found to be very satisfactory. Also, the well-established design model, the Bed depth-service time (BDST) model was used to analyze the experimental data. The BDST model plot at 5 ml/min (flow rate) and 100 mg/l (inlet solute concentration) was used to predict bed depth-service time data at different conditions. The BDST model predicted values always coincide with experimental values with high correlation coefficients. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/16600481/Potential_of_Sargassum_wightii_biomass_for_copper_II__removal_from_aqueous_solutions:_application_of_different_mathematical_models_to_batch_and_continuous_biosorption_data_ DB - PRIME DP - Unbound Medicine ER -