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Sorption and desorption studies of chromium(VI) from nonviable cyanobacterium Nostoc muscorum biomass.
J Hazard Mater. 2008 Jun 15; 154(1-3):347-54.JH

Abstract

This communication presents results pertaining to the sorptive and desorptive studies carried out on chromium(VI) removal onto nonviable freshwater cyanobacterium (Nostoc muscorum) biomass. Influence of varying the conditions for removal of chromium(VI), such as the pH of aqueous solution, the dosage of biosorbent, the contact time with the biosorbent, the temperature for the removal of chromium, the effect of light metal ions and the adsorption-desorption studies were investigated. Sorption interaction of chromium on to cyanobacterial species obeyed both the first and the second-order rate equation and the experimental data showed good fit with both the Langmuir and freundlich adsorption isotherm models. The maximum adsorption capacity was 22.92 mg/g at 25 degrees C and pH 3.0. The adsorption process was endothermic and the values of thermodynamic parameters of the process were calculated. Various properties of the cyanobacterium, as adsorbent, explored in the characterization part were chemical composition of the adsorbent, surface area calculation by BET method and surface functionality by FTIR. Sorption-desorption of chromium into inorganic solutions and distilled water were observed and this indicated the biosorbent could be regenerated using 0.1 M HNO3 and EDTA with upto 80% recovery. The biosorbents were reused in five biosorption-desorption cycles without a significant loss in biosorption capacity. Thus, this study demonstrated that the cyanobacterial biomass N. muscorum could be used as an efficient biosorbent for the treatment of chromium(VI) bearing wastewater.

Authors+Show Affiliations

Gupta VK
Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India. vinodfcy@iitr.ernet.in
Rastogi A
No affiliation info available

MeSH

AcetatesAdsorptionBiomassCalciumChelating AgentsChromiumEdetic AcidHydrogen-Ion ConcentrationKineticsNostoc muscorumTemperatureThermodynamicsWaste Disposal, FluidWater Pollutants, Chemical

Pub Type(s)

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

Language

eng

PubMed ID

18053641

Citation

Gupta, V K., and A Rastogi. "Sorption and Desorption Studies of chromium(VI) From Nonviable Cyanobacterium Nostoc Muscorum Biomass." Journal of Hazardous Materials, vol. 154, no. 1-3, 2008, pp. 347-54.
Gupta VK, Rastogi A. Sorption and desorption studies of chromium(VI) from nonviable cyanobacterium Nostoc muscorum biomass. J Hazard Mater. 2008;154(1-3):347-54.
Gupta, V. K., & Rastogi, A. (2008). Sorption and desorption studies of chromium(VI) from nonviable cyanobacterium Nostoc muscorum biomass. Journal of Hazardous Materials, 154(1-3), 347-54.
Gupta VK, Rastogi A. Sorption and Desorption Studies of chromium(VI) From Nonviable Cyanobacterium Nostoc Muscorum Biomass. J Hazard Mater. 2008 Jun 15;154(1-3):347-54. PubMed PMID: 18053641.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sorption and desorption studies of chromium(VI) from nonviable cyanobacterium Nostoc muscorum biomass. AU - Gupta,V K, AU - Rastogi,A, Y1 - 2007/10/13/ PY - 2007/09/14/received PY - 2007/10/10/revised PY - 2007/10/10/accepted PY - 2007/12/7/pubmed PY - 2008/7/30/medline PY - 2007/12/7/entrez SP - 347 EP - 54 JF - Journal of hazardous materials JO - J Hazard Mater VL - 154 IS - 1-3 N2 - This communication presents results pertaining to the sorptive and desorptive studies carried out on chromium(VI) removal onto nonviable freshwater cyanobacterium (Nostoc muscorum) biomass. Influence of varying the conditions for removal of chromium(VI), such as the pH of aqueous solution, the dosage of biosorbent, the contact time with the biosorbent, the temperature for the removal of chromium, the effect of light metal ions and the adsorption-desorption studies were investigated. Sorption interaction of chromium on to cyanobacterial species obeyed both the first and the second-order rate equation and the experimental data showed good fit with both the Langmuir and freundlich adsorption isotherm models. The maximum adsorption capacity was 22.92 mg/g at 25 degrees C and pH 3.0. The adsorption process was endothermic and the values of thermodynamic parameters of the process were calculated. Various properties of the cyanobacterium, as adsorbent, explored in the characterization part were chemical composition of the adsorbent, surface area calculation by BET method and surface functionality by FTIR. Sorption-desorption of chromium into inorganic solutions and distilled water were observed and this indicated the biosorbent could be regenerated using 0.1 M HNO3 and EDTA with upto 80% recovery. The biosorbents were reused in five biosorption-desorption cycles without a significant loss in biosorption capacity. Thus, this study demonstrated that the cyanobacterial biomass N. muscorum could be used as an efficient biosorbent for the treatment of chromium(VI) bearing wastewater. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/18053641/Sorption_and_desorption_studies_of_chromium_VI__from_nonviable_cyanobacterium_Nostoc_muscorum_biomass_ DB - PRIME DP - Unbound Medicine ER -