Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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The Removal of Pb by Plants

식물을 이용한 납(Pb) 제거

  • 조문철 (서봉 리사이클링(주)) ;
  • 이상화 (서봉 리사이클링(주)) ;
  • 박영식 (서봉 리사이클링(주)) ;
  • 서근학 (부경대학교 화학공학과) ;
  • 안갑환 (부산가톨릭대학교 산업환경시스템학부)
  • Published : 2001.08.01
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Abstract

Biosorption of Pb was evaluated for plants, Persicaria chinensis, Oenanthe javanica and Salvinia natnas. The adsorption equilibrium was reached in about 1hr for Pb and the highest adsorption capacity was 150mg Pb/g biomass at S.natans. Pb adsorption process showed a pseudo second order irreversible reaction. The highest initial adsorption rate was 2000mg pb/g biomass/hr at O.javanica. In spite of pH variation, Pb adsorption capacity by was selection, Pb was selectively adsorved. The selectivity of mixture solution showed the adsorption order of Pb>Cu>Cr>Cd. The Pb adsorption capacity of P. chinensis pretreated with NaOH was increased by 30% in comparison with that of no treatment.

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References

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