상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제20권3호
  • /
  • Pages.389-395
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  • 2006
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  • 1225-7672(pISSN)
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  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

분말 소나무 수피를 이용한 수용액 중의 납 이온 흡착

Adsorption of Lead Ions from Aqueous Solutions Using Milled Pine Bark

  • 오미영 (강원대학교 공과대학 환경공학과) ;
  • 김영관 (강원대학교 공과대학 환경공학과)
  • 투고 : 2006.03.27
  • 심사 : 2006.05.30
  • 발행 : 2006.06.15
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초록

The use of pine bark, a natural adsorbent prepared from Korean Red Pine (Pinus densifloral), was studied for its adsorption behavior of lead ion from aqueous solution. Adsorption experiments were carried out on lead ion concentrations of 10mg/L. Adsorption of lead ion could be described by both Langmuir and Freundlich adsorption isotherms. Treatment of the bark with nitric acid greatly increased initial adsorption rate, and equilibrium sorption capacity increased by approximately 48%. A pseudo second-order kinetic model fitted well for the kinetic behavior of lead ion adsorption onto the bark. Acid-treated bark demonstrated its adsorption capacity quite close to that of granular activated carbon. Results of this study indicated that ion exchange and chelation were involved in the adsorption process.

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참고문헌

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