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2012 | 21 | 5 |
Tytuł artykułu

Adsorption kinetics and Intraparticulate diffusivities of congo red onto kola nut pod carbon

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this present study, the adsorption kinetics and intraparticulate diffusivities of congo red onto unmodified and modified kola nut pod carbons were studied. Two kinetic models, the pseudo first- and second-order equations, were selected to follow the adsorption process. Kinetic parameters, rate constants, equilibrium adsorption capacities, and correlation coefficients for each kinetic equations were calculated and discussed. Experimental results showed that the amount of congo red adsorbed by all the adsorbents increased with increasing contact time with NH₄C1 modified kola nut pod carbon having the highest adsorption capacity as compared to the unmodified, heat- and HNO₃-modified kola nut pod carbon. Results obtained also indicated that the adsorption of congo red onto kola nut pod carbons is pseudo first-order and the mechanism is particle-diffusion controlled.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
21
Numer
5
Opis fizyczny
p.1147-1152,fig.,ref.
Twórcy
autor
  • Department of Chemistry, Faculty of Applied Sciences, Cape Penisula University of Technology, P.O. Box 1906, Bellville , South Africa
autor
autor
Bibliografia
  • 1. MALL I.D., SRIVASTAVA V.C., AGARWAL N.K., MISHRA I.M. Removal of Congo red from aqueous solution by bagasse fly ash and activated carbon: Kinetic study and equilibrium isotherm analyses. Chemosphere 61, 492, 2005.
  • 2. CHATTERJEE S., LEE D.S., LEE M.W., WOO S.H. Enhanced adsorption of CR from aqueous solutions by chitosan hydrogel beads impregnated with cetyl trimethyl ammonium bromide. Bioresource Technol. 100, 2803, 2009.
  • 3. KHADHRAOUI M., TRABELSI H., KSIBI M., BOUGUERRA S., ELLEUCH B. Discoloration and detoxification of a Congo red dye solution by means of ozone treatment for a possible water reuse. J. Hazard. Mater. 161, 974, 2009.
  • 4. WAHI R.K., YU W.W., LIU Y., MEJIA M.L., FALKNER J.C., NOLTE W., COLVIN V.L. Photodegradation of Congo Red catalyzed by nanosized TiO₂. J. Mol. Catal. A - Chem. 242, 48, 2005.
  • 5. GOPINATH K.P., MURUGESAN S., ABRAHAM J., MUTHUKUMAR K. Bacillus sp. Mutant for improved biodegradation of Congo red: random mutagenesis approach. Bioresource Technol. 100, 6295, 2009.
  • 6. GARG V.K., GUPTA R., YADAV A.B., KUMAR R. Dye removal from aqueous solution by adsorption on treated sawdust. Bioresource Technol. 89, 121, 2003.
  • 7. AKSU Z. Application of biosorption for the removal of organic pollutants: a review. Process Biochem. 40, 997, 2005.
  • 8. CHOU K., TAI J., LO C. The adsorption of congo red and vacuum pump oil by rice hull ash. Bioresource Technol. 78, 217,2001.
  • 9. SHARMA J., JANVEJA B. A Study on removal of congo red dye from the effluents of textile industry using rice husk carbon activated by steam, Rasayan J. Chem. 1, (4), 936, 2008.
  • 10. NAMASIVAYAM C., KAVITHA D. Removal of Congo red from water by adsorption onto activated carbon prepared from coir pith, an agricultural solid waste. Dyes Pigments 54, 47, 2002.
  • 11. REDDY M.C.S. Removal of direct dye from aqueous solutions with an adsorbent made from tamarind fruit shell, an agricultural solid waste. Journal of Scientific and Industrial Research 65, 443, 2006.
  • 12. HO Y.S., MCKAY G., WASE D.A.J., FOSTER C.F. Study of the sorption of divalent metal ions on to peat. Adsorp. Sci. Technol. 18, 639, 2000.
  • 13. HORSFALL M., SPIFF A.I. Studies on the effect of pH on the sorption of Pb²⁺ and Cd²⁺ ions from aqueous solutions by caladium bicolor (wild cocoyam) biomass. Electron. J. Biotech. 7, (3), 1,2004.
  • 14. SAIFUDDIN M.N., KUMARAN P. Removal of heavy metal from industrial wastewater using Chitosan coated oil palm shell charcoal. Electron J. Biotech. 8, (1), 1, 2005.
  • 15. FINDON A., MCKAY O., BLAIR H. S. Transport studies for the sorption of copper ions by ehitosan. J. Environ. Sci. Heal. A. 28, 173,1993.
  • 16. WEBER W.J., DIGIANO F.A. Process dynamics in Environmental systems; Environmental Science and Technology Service, Wiley and Sons, New York, pp. 89-94, 1996.
  • 17. ABIA A.A., IGWE J. C. Sorption kinetics and intraparticulate diffusivities of Cd, Pb and Zn ions on maize cob. Afr. J. Biotech. 4, (6), 509, 2005.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-3eda362e-0a9f-4383-89c9-261e888d9bbb
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