The objective of the present study was the evaluation of differently treated bovine bones for Co2+ removal from aqueous media. Powdered bones (B), as well as samples prepared by H2O2 oxidation (BH2O2) and annealing at 400-1000 degrees C (B400-B1000), were tested as sorbent materials. A combination of XRD, FTIR spectroscopies, DTA/TGA analyses, specific surface area (S-p) and point of zero charge (pH(PZC)) measurements was utilized for physicochemical characterization of sorbents. Sorption of Co2+ was studied in batch conditions as a function of pH, contact time and Co2+ concentration. Initial pH values in the range4-8 were found optimal for sorption experiments. Equilibrium time of 24 h was required in all investigated systems. The maximum sorption capacities differ significantly from 0.078 to 0.495 mmol/g, whereas the affinity towards Co2+ decreased in the order: B400 GT BH2O2 GT B600 GT B GT B800 GT B1000. The pseudo-second-order model and Langmuir theoretical equation were used for ...fitting the kinetic and equilibrium data, respectively. Ion-exchange with Ca2+ and specific cation sorption were identified as main removal mechanisms. The amounts of Co2+ desorbed from loaded bone sorbents increased with the decrease of pH as well as with the increase of Ca2+ concentration. Heating at 400 degrees C was found to be an optimal treatment for the production of the Co2+ removal agent. (C) 2008 Elsevier B.V. All rights reserved.
Keywords:
Animal bones / Co2+ / Sorption / Water treatment
Source:
Journal of Hazardous Materials, 2009, 164, 1, 279-287
Funding / projects:
Ministry of Science and Environmental Protection of the Republic of Serbia [142050G]
TY - JOUR
AU - Dimović, Slavko
AU - Smičiklas, Ivana D.
AU - Plećaš, Ilija B.
AU - Antonović, Dušan
AU - Mitrić, Miodrag
PY - 2009
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5519
AB - The objective of the present study was the evaluation of differently treated bovine bones for Co2+ removal from aqueous media. Powdered bones (B), as well as samples prepared by H2O2 oxidation (BH2O2) and annealing at 400-1000 degrees C (B400-B1000), were tested as sorbent materials. A combination of XRD, FTIR spectroscopies, DTA/TGA analyses, specific surface area (S-p) and point of zero charge (pH(PZC)) measurements was utilized for physicochemical characterization of sorbents. Sorption of Co2+ was studied in batch conditions as a function of pH, contact time and Co2+ concentration. Initial pH values in the range4-8 were found optimal for sorption experiments. Equilibrium time of 24 h was required in all investigated systems. The maximum sorption capacities differ significantly from 0.078 to 0.495 mmol/g, whereas the affinity towards Co2+ decreased in the order: B400 GT BH2O2 GT B600 GT B GT B800 GT B1000. The pseudo-second-order model and Langmuir theoretical equation were used for fitting the kinetic and equilibrium data, respectively. Ion-exchange with Ca2+ and specific cation sorption were identified as main removal mechanisms. The amounts of Co2+ desorbed from loaded bone sorbents increased with the decrease of pH as well as with the increase of Ca2+ concentration. Heating at 400 degrees C was found to be an optimal treatment for the production of the Co2+ removal agent. (C) 2008 Elsevier B.V. All rights reserved.
T2 - Journal of Hazardous Materials
T1 - Comparative study of differently treated animal bones for Co2+ removal
EP - 287
IS - 1
SP - 279
VL - 164
DO - 10.1016/j.jhazmat.2008.08.013
ER -
@article{
author = "Dimović, Slavko and Smičiklas, Ivana D. and Plećaš, Ilija B. and Antonović, Dušan and Mitrić, Miodrag",
year = "2009",
abstract = "The objective of the present study was the evaluation of differently treated bovine bones for Co2+ removal from aqueous media. Powdered bones (B), as well as samples prepared by H2O2 oxidation (BH2O2) and annealing at 400-1000 degrees C (B400-B1000), were tested as sorbent materials. A combination of XRD, FTIR spectroscopies, DTA/TGA analyses, specific surface area (S-p) and point of zero charge (pH(PZC)) measurements was utilized for physicochemical characterization of sorbents. Sorption of Co2+ was studied in batch conditions as a function of pH, contact time and Co2+ concentration. Initial pH values in the range4-8 were found optimal for sorption experiments. Equilibrium time of 24 h was required in all investigated systems. The maximum sorption capacities differ significantly from 0.078 to 0.495 mmol/g, whereas the affinity towards Co2+ decreased in the order: B400 GT BH2O2 GT B600 GT B GT B800 GT B1000. The pseudo-second-order model and Langmuir theoretical equation were used for fitting the kinetic and equilibrium data, respectively. Ion-exchange with Ca2+ and specific cation sorption were identified as main removal mechanisms. The amounts of Co2+ desorbed from loaded bone sorbents increased with the decrease of pH as well as with the increase of Ca2+ concentration. Heating at 400 degrees C was found to be an optimal treatment for the production of the Co2+ removal agent. (C) 2008 Elsevier B.V. All rights reserved.",
journal = "Journal of Hazardous Materials",
title = "Comparative study of differently treated animal bones for Co2+ removal",
pages = "287-279",
number = "1",
volume = "164",
doi = "10.1016/j.jhazmat.2008.08.013"
}
Dimović, S., Smičiklas, I. D., Plećaš, I. B., Antonović, D.,& Mitrić, M.. (2009). Comparative study of differently treated animal bones for Co2+ removal. in Journal of Hazardous Materials, 164(1), 279-287.
https://doi.org/10.1016/j.jhazmat.2008.08.013
Dimović S, Smičiklas ID, Plećaš IB, Antonović D, Mitrić M. Comparative study of differently treated animal bones for Co2+ removal. in Journal of Hazardous Materials. 2009;164(1):279-287.
doi:10.1016/j.jhazmat.2008.08.013 .
Dimović, Slavko, Smičiklas, Ivana D., Plećaš, Ilija B., Antonović, Dušan, Mitrić, Miodrag, "Comparative study of differently treated animal bones for Co2+ removal" in Journal of Hazardous Materials, 164, no. 1 (2009):279-287,
https://doi.org/10.1016/j.jhazmat.2008.08.013 . .
