Biosorption of $Pb^{2+}$ and $Cr^{3+}$ by using Sargassum hornei

Sargassum horneri를 이용한 $Pb^{2+}$$Cr^{3+}$ 생체흡착

  • Published : 1999.06.01

Abstract

$Pb^{2+}$ and $Cr^{3+}$ uptake capacity by Sargassum horneri was 185.5 mg $Pb^{2+}$/g biomass and 102.6 mg $Cr^{3+}$/g biomass, respectively. An adsorption equilibria were reached within about 0.5 hr for $Pb^{2+}$ and 1 hr for $Cr^{3+}$. The adsorption parameters for $Pb^{2+}$ and $Cr^{3+}$ were determined according to Langmuir and Freundlich model. With an increase in pH values of 2 to 5, $Pb^{2+}$ uptake was increased, however $Cr^{3+}$ uptake jwas constant. The selectivity of mixture solution showed the uptake order of $Pb^{2+}$>$Cu^{2+}$>$Cr^{3+}$>$Cd^{2+}$. $Pb^{2+}$ and $Cr^{3+}$ adsorbed by S. horneri could be recovered from 0.1M HCl, 0.1M ${HNO}_3$ and 0.1M EDTA by desorption process, and the efficiency of $Pb^{2+}$ desorption was above 98%, whereas the efficiency of $Cr^{3+}$ desorption was below 34%.

References

  1. 금속과 사람 이영환;정문호
  2. Biosorption of Heavy metals Volesky, B.
  3. Biosorption of Lead to Saccharomyces cerevisiae and Aureobasidium pullulans Suh, J.H.
  4. Korean J. Biotechnol. Bioeng. v.13 no.4 Biosorption of Pb and Cu by Marine Algae Suh, K.H.;K.H. Ahn;M.C. Cho;B.J. Kim;H.J. Jin;Y.K. Hong
  5. Analytical Science & Technology v.9 no.4 Adsorption and Recovery of Cu(II) and Zn(III) Ions by Algal Biomass Park, K.H.;B.O. Jun;H.S. Kim;Y.H. Kim
  6. Biotechnology and Bioengineering v.33 Accumulation of Cobalt by Marine Alga Kuyucak, N.;B. Volesky
  7. 한국 동식물 도감 v.7 식물편(해조류) 강제원
  8. Appl. Microbiol. Biotechnol. v.37 Heavy metal biosorption by fungal mycelial by-products: mechanism and influence of pH Fourest, E.;J.C. Roux
  9. Wat. Res. v.26 Uranium Biosorption by a Filamentous Fungus Mucor Miehei : pH Effect on Mechanisms and Performances of Uptake Guibal, E.;C. Roulph;P.L. Cloirec
  10. Korean J. Biotechnol. Bioeng. v.12 no.4 Biosorption of Cr, Cu and Al by Sargassum Biomass Lee, H.S.