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Sorptive removal of trivalent and hexavalent chromium from binary aqueous solutions by composite alginate-goethite beads.
Water Res. 2005 Nov; 39(18):4385-96.WR

Abstract

In this study, the removal of hexavalent and trivalent chromium ions from binary aqueous solutions by composite alginate-goethite beads was investigated in a batch mode. Equilibrium sorption experiments were carried out at different temperatures and pH values. The data were correlated with Langmuir and Freundlich equations. The thermodynamic parameters calculated were: change in free energy, in enthalpy, in entropy and the heat of adsorption. The influence of mixing rate, sorbent concentration and sorbent particle size was studied at kinetic runs. The effective diffusion coefficients were evaluated by employing the homogeneous diffusion model and the shrinking core model for hexavalent and trivalent chromium, respectively. Desorption experiments were conducted by employing various eluants showed that the loaded material could be regenerated satisfactorily.

Authors+Show Affiliations

Division of Chemical Technology, School of Chemistry, Aristotle University, GR-54124 Thessaloniki, Greece. nlazarid@chem.auth.grNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16233908

Citation

Lazaridis, N K., and Ch Charalambous. "Sorptive Removal of Trivalent and Hexavalent Chromium From Binary Aqueous Solutions By Composite Alginate-goethite Beads." Water Research, vol. 39, no. 18, 2005, pp. 4385-96.
Lazaridis NK, Charalambous Ch. Sorptive removal of trivalent and hexavalent chromium from binary aqueous solutions by composite alginate-goethite beads. Water Res. 2005;39(18):4385-96.
Lazaridis, N. K., & Charalambous, C. h. (2005). Sorptive removal of trivalent and hexavalent chromium from binary aqueous solutions by composite alginate-goethite beads. Water Research, 39(18), 4385-96.
Lazaridis NK, Charalambous Ch. Sorptive Removal of Trivalent and Hexavalent Chromium From Binary Aqueous Solutions By Composite Alginate-goethite Beads. Water Res. 2005;39(18):4385-96. PubMed PMID: 16233908.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sorptive removal of trivalent and hexavalent chromium from binary aqueous solutions by composite alginate-goethite beads. AU - Lazaridis,N K, AU - Charalambous,Ch, Y1 - 2005/10/19/ PY - 2005/02/10/received PY - 2005/09/08/revised PY - 2005/09/14/accepted PY - 2005/10/20/pubmed PY - 2006/2/4/medline PY - 2005/10/20/entrez SP - 4385 EP - 96 JF - Water research JO - Water Res VL - 39 IS - 18 N2 - In this study, the removal of hexavalent and trivalent chromium ions from binary aqueous solutions by composite alginate-goethite beads was investigated in a batch mode. Equilibrium sorption experiments were carried out at different temperatures and pH values. The data were correlated with Langmuir and Freundlich equations. The thermodynamic parameters calculated were: change in free energy, in enthalpy, in entropy and the heat of adsorption. The influence of mixing rate, sorbent concentration and sorbent particle size was studied at kinetic runs. The effective diffusion coefficients were evaluated by employing the homogeneous diffusion model and the shrinking core model for hexavalent and trivalent chromium, respectively. Desorption experiments were conducted by employing various eluants showed that the loaded material could be regenerated satisfactorily. SN - 0043-1354 UR - https://www.unboundmedicine.com/medline/citation/16233908/Sorptive_removal_of_trivalent_and_hexavalent_chromium_from_binary_aqueous_solutions_by_composite_alginate_goethite_beads_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(05)00515-4 DB - PRIME DP - Unbound Medicine ER -