Sorption potential of waste short hemp fibers for Pb2+, Cd2+ and Zn2+ ions from aqueous media was explored. In order to assess the influence of hemp fiber chemical composition on their heavy metals sorption potential, lignin and hemicelluloses were removed selectively by chemical modification. The degree of fiber swelling and water retention value were determined in order to evaluate the change in accessibility of the cell wall components to aqueous solutions due to the fiber modification. The effects of initial ion concentration, contact time and cosorption were studied in batch sorption experiments. The obtained results show that when the content of either lignin or hemicelluloses is progressively reduced by chemical treatment, the sorption properties of hemp fibers are improved. Short hemp fibers are capable of sorbing metal ions (Pb2+, Cd2+ and Zn2+) from single as well as from ternary metal ion solutions. The maximum total uptake capacities for Pb2+, Cd2+ and Zn2+ ions from single... solutions are the same, i.e. 0.078 mmol/g, and from ternary mixture 0.074, 0.035 and 0.035 mmol/g, respectively.
Keywords:
Short hemp fibers / Chemical modification / Biosorption / Heavy metals / Fiber swelling
Source:
Journal of Hazardous Materials, 2009, 164, 1, 146-153
Publisher:
Elsevier Science Bv, Amsterdam
Funding / projects:
Ministry of Science of the Republic SerbiaMinistry of Science, Serbia [TR-6713B]
TY - JOUR
AU - Pejić, Biljana
AU - Vukčević, Marija
AU - Kostić, Mirjana
AU - Škundrić, Petar
PY - 2009
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1475
AB - Sorption potential of waste short hemp fibers for Pb2+, Cd2+ and Zn2+ ions from aqueous media was explored. In order to assess the influence of hemp fiber chemical composition on their heavy metals sorption potential, lignin and hemicelluloses were removed selectively by chemical modification. The degree of fiber swelling and water retention value were determined in order to evaluate the change in accessibility of the cell wall components to aqueous solutions due to the fiber modification. The effects of initial ion concentration, contact time and cosorption were studied in batch sorption experiments. The obtained results show that when the content of either lignin or hemicelluloses is progressively reduced by chemical treatment, the sorption properties of hemp fibers are improved. Short hemp fibers are capable of sorbing metal ions (Pb2+, Cd2+ and Zn2+) from single as well as from ternary metal ion solutions. The maximum total uptake capacities for Pb2+, Cd2+ and Zn2+ ions from single solutions are the same, i.e. 0.078 mmol/g, and from ternary mixture 0.074, 0.035 and 0.035 mmol/g, respectively.
PB - Elsevier Science Bv, Amsterdam
T2 - Journal of Hazardous Materials
T1 - Biosorption of heavy metal ions from aqueous solutions by short hemp fibers: Effect of chemical composition
EP - 153
IS - 1
SP - 146
VL - 164
DO - 10.1016/j.jhazmat.2008.07.139
ER -
@article{
author = "Pejić, Biljana and Vukčević, Marija and Kostić, Mirjana and Škundrić, Petar",
year = "2009",
abstract = "Sorption potential of waste short hemp fibers for Pb2+, Cd2+ and Zn2+ ions from aqueous media was explored. In order to assess the influence of hemp fiber chemical composition on their heavy metals sorption potential, lignin and hemicelluloses were removed selectively by chemical modification. The degree of fiber swelling and water retention value were determined in order to evaluate the change in accessibility of the cell wall components to aqueous solutions due to the fiber modification. The effects of initial ion concentration, contact time and cosorption were studied in batch sorption experiments. The obtained results show that when the content of either lignin or hemicelluloses is progressively reduced by chemical treatment, the sorption properties of hemp fibers are improved. Short hemp fibers are capable of sorbing metal ions (Pb2+, Cd2+ and Zn2+) from single as well as from ternary metal ion solutions. The maximum total uptake capacities for Pb2+, Cd2+ and Zn2+ ions from single solutions are the same, i.e. 0.078 mmol/g, and from ternary mixture 0.074, 0.035 and 0.035 mmol/g, respectively.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Biosorption of heavy metal ions from aqueous solutions by short hemp fibers: Effect of chemical composition",
pages = "153-146",
number = "1",
volume = "164",
doi = "10.1016/j.jhazmat.2008.07.139"
}
Pejić, B., Vukčević, M., Kostić, M.,& Škundrić, P.. (2009). Biosorption of heavy metal ions from aqueous solutions by short hemp fibers: Effect of chemical composition. in Journal of Hazardous Materials
Elsevier Science Bv, Amsterdam., 164(1), 146-153.
https://doi.org/10.1016/j.jhazmat.2008.07.139
Pejić B, Vukčević M, Kostić M, Škundrić P. Biosorption of heavy metal ions from aqueous solutions by short hemp fibers: Effect of chemical composition. in Journal of Hazardous Materials. 2009;164(1):146-153.
doi:10.1016/j.jhazmat.2008.07.139 .
Pejić, Biljana, Vukčević, Marija, Kostić, Mirjana, Škundrić, Petar, "Biosorption of heavy metal ions from aqueous solutions by short hemp fibers: Effect of chemical composition" in Journal of Hazardous Materials, 164, no. 1 (2009):146-153,
https://doi.org/10.1016/j.jhazmat.2008.07.139 . .
