Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Adsorption of PCBs in Transformer Oil on Powder Activated Carbon and Synthetic Zeolite

활성탄과 합성 제올라이트를 이용한 폐절연유 내 PCBs 흡착

  • Chu, Heon-Jik (Department of Environmental Science and Engineering, Keimyung University) ;
  • Choi, Sung-Woo (Department of Environmental Science and Engineering, Keimyung University)
  • Received : 2011.11.15
  • Accepted : 2012.04.19
  • Published : 2012.05.31
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Abstract

In this study, adsorption of polychlorinated biphenyls(PCBs) in transformer oil on powder activated carbon (PAC) and synthetic zeolite was evaluated. Adsorption characteristics of PCBs on the PAC and zeolite has been investigated in a batch system with respect to adsorbents amount and contact time. BET results showed 908 m2/g for PAC and 483 m2/g for zeolite. The adsorption capacity of PCBs increased with an increasing input amount of absorbent. The adsorption experimental results showed that PAC removed 90% of input PCBs in transformer oil while zeolite removed only 64%. Adsorption of PCBs to PAC and zeolite fit the Freundlich model well. The Freundlich parameter, Kf, for PAC and zeolite was 193.1 and 43.0 respectively, indicating that PAC is effect adsorbent for PCBs adsorption in transformer oil.

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References

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