Tags

Type your tag names separated by a space and hit enter

Biosorption of chromium(VI) ion from aqueous solutions using walnut, hazelnut and almond shell.
J Hazard Mater. 2008 Jun 30; 155(1-2):378-84.JH

Abstract

The potential to remove Cr(VI) ion from aqueous solutions through biosorption using, the shells of Walnut (WNS) (Juglans regia), Hazelnut (HNS) (Corylus avellana) and Almond (AS) (Prunus dulcis) was investigated in batch experiments. The equilibrium adsorption level was determined to be a function of the solution contact time and concentration. Kinetic experiments revealed that the dilute chromium solutions reached equilibrium within 100 min. The biosorptive capacity of the shells was dependent on the pH of the chromium solution, with pH 3.5 being optimal. Adsorption of Cr(VI) ion uptake is in all cases pH-dependent showing a maximum at equilibrium pH values between 2.0 and 3.5, depending on the biomaterial, that correspond to equilibrium pH values of 3.5 for (WNS), 3.5 for (HNS) and 3.2 for (AS). The adsorption data fit well with the Langmuir isotherm model. The sorption process conformed to the Langmuir isotherm with maximum Cr(VI) ion sorption capacities of 8.01, 8.28, and 3.40 mg/g for WNS, HNS and AS, respectively. Percentage removal by WNS, HNS and AS was 85.32, 88.46 and 55.00%, respectively at a concentration of 0.5 mM. HNS presented the highest adsorption capacities for the Cr(VI) ion.

Authors+Show Affiliations

Department of Chemical Engineering, Selcuk University, Campus, 42079 Konya, Turkey. erolpehlivan@gmail.comNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18179865

Citation

Pehlivan, Erol, and Türkan Altun. "Biosorption of chromium(VI) Ion From Aqueous Solutions Using Walnut, Hazelnut and Almond Shell." Journal of Hazardous Materials, vol. 155, no. 1-2, 2008, pp. 378-84.
Pehlivan E, Altun T. Biosorption of chromium(VI) ion from aqueous solutions using walnut, hazelnut and almond shell. J Hazard Mater. 2008;155(1-2):378-84.
Pehlivan, E., & Altun, T. (2008). Biosorption of chromium(VI) ion from aqueous solutions using walnut, hazelnut and almond shell. Journal of Hazardous Materials, 155(1-2), 378-84. https://doi.org/10.1016/j.jhazmat.2007.11.071
Pehlivan E, Altun T. Biosorption of chromium(VI) Ion From Aqueous Solutions Using Walnut, Hazelnut and Almond Shell. J Hazard Mater. 2008 Jun 30;155(1-2):378-84. PubMed PMID: 18179865.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biosorption of chromium(VI) ion from aqueous solutions using walnut, hazelnut and almond shell. AU - Pehlivan,Erol, AU - Altun,Türkan, Y1 - 2007/11/23/ PY - 2007/08/12/received PY - 2007/11/19/revised PY - 2007/11/20/accepted PY - 2008/1/9/pubmed PY - 2008/8/2/medline PY - 2008/1/9/entrez SP - 378 EP - 84 JF - Journal of hazardous materials JO - J Hazard Mater VL - 155 IS - 1-2 N2 - The potential to remove Cr(VI) ion from aqueous solutions through biosorption using, the shells of Walnut (WNS) (Juglans regia), Hazelnut (HNS) (Corylus avellana) and Almond (AS) (Prunus dulcis) was investigated in batch experiments. The equilibrium adsorption level was determined to be a function of the solution contact time and concentration. Kinetic experiments revealed that the dilute chromium solutions reached equilibrium within 100 min. The biosorptive capacity of the shells was dependent on the pH of the chromium solution, with pH 3.5 being optimal. Adsorption of Cr(VI) ion uptake is in all cases pH-dependent showing a maximum at equilibrium pH values between 2.0 and 3.5, depending on the biomaterial, that correspond to equilibrium pH values of 3.5 for (WNS), 3.5 for (HNS) and 3.2 for (AS). The adsorption data fit well with the Langmuir isotherm model. The sorption process conformed to the Langmuir isotherm with maximum Cr(VI) ion sorption capacities of 8.01, 8.28, and 3.40 mg/g for WNS, HNS and AS, respectively. Percentage removal by WNS, HNS and AS was 85.32, 88.46 and 55.00%, respectively at a concentration of 0.5 mM. HNS presented the highest adsorption capacities for the Cr(VI) ion. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/18179865/Biosorption_of_chromium_VI__ion_from_aqueous_solutions_using_walnut_hazelnut_and_almond_shell_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)01700-1 DB - PRIME DP - Unbound Medicine ER -