Biosorption and Flotation of Lead and Chromium using Waste Activated Sludge

폐 활성슬러지를 이용한 납과 크롬의 생체흡착 및 부상

  • 이창한 (부산가톨릭대학교 환경공학과)
  • Published : 2009.10.28


We have investigated biosorption kinetics and equilibrium of $Pb^2+$ and $Cr^2+$ using waste sludge, and separation efficiency of waste sludge by dissolved air flotation was evaluated in the various A/S ratio. The biosorption capacity and contact time were shown as a simulation of biosorption equilibrium and kinetics models. Biosorption equilibrium of the $Pb^2+$ and $Cr^2+$ onto the waste sludge could be fitted by the Langmuir, Freundlich, Redlich-Peterson, and Koble-Corrigan equation. The kinetics could be fitted by a pseudo-second-order rate equation more than a pseudo-first-order rate equation. The separation efficiency of waste sludge using DAF was kept above 90%.


Biosorption;Heavy Metal;Pb;Cr;DAF;Waste Sludge


  1. N. S. Wei, Removal of heavy metals from wastewaters, B&L Information Services, 1980.
  2. Betul Arican et al, "Mechanistics of nickel sorption by activated sludge," Process Biochem., Vol.37, No.11, pp.1307-1315, 2002.
  3. F. Eric and R. Jean-Claude, "Heavy biosorption by fungal mycelial by-products : mechanisms and influence of pH," Appl. Microbiol. & Biotech., Vol.37, pp.399-403, 1992.
  4. R. D. Neufield and E. R. Herman, "Heavy metal removal by activated sludge," J. Wat. Pollut. Control Fed., Vol.47, pp.310-329, 1975.
  5. C. Aldrich and D. Feng, "Removal of heavy metals from wastewater effluents by biosorptive flotation," Mine. Eng., Vol.13, No.10-11, pp.1129-1138, 2000.
  6. O. Gulnaz. A. Kaya, F. Matyar, and B. Arikan, "Sorption of basic dyes from aqueous solution by activated sludge," J. Hazardous Materials, Vol.108, pp.183-188, 2004.
  7. Z. Aksu, "Biosorption of reactive dyes by dried activated sludge : equilibrium and kinetic modelling," Biochem. Eng. J., Vol.7, No.1, pp.79-84, 2001.
  8. Y. Goksungur, S, Uren, and U. Guvenc, "Biosorption of cadmium and lead ions by ethanol treated waste baker's yeast biomass," Bioresour. Tech., Vol.96, No.1, pp.103-109, 2005.
  9. J. P. Chen, W. R. Chen, and R. C Hsu, "Biosorption of copper from aqueous solutions by plant root tissues," J. of Ferm. & Bioeng., Vol.81, No.5, pp.458-463, 1996.
  10. Z. Aksu and I. Alper, "Removal of copper(ll) ions from aqueous solution by biosorption onto agricultural waste sugar beet pulp," Process Biochemistry, Vol.40, No.9, pp.3031-3044, 2005.
  11. T. A. Davis, B. Volesky, and A., Mucci, "A review of the biochemistry of heavy metal biosorption by brown algae," Wat. Res., Vol.37, No.18, pp.4311-4330, 2003.
  12. A. Y. Dursun, "A comparative study on determination of the equilibrium, kinetic and thermodynamic parameters of biosorption of copper(II) and lead(II) ions onto pretreated Aspergillus niger," Biochemical Engineering Journal, Vol.28, No.2, pp.187-195, 2006.
  13. J. H. Bruus, P. H. Nielsen, and K. Keiding, "On the stability of activated sludge flocs with to dewatering," Wat. Res., Vol.26, No.3, 1597-1604. 1992.