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알칼리분산법에 의한 변압기 절연유 PCBs의 화학적처리 KCI 등재

Chemical Treatment of PCBs in Transformer Insulating Oil by Alkaline Dispersion Method

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한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

The dechlorination processes and efficiencies of PCBs contained in transformer dielectric oils were investigated on three commercial-treatment companies. Alkaline dispersion method was used for dechlorination of PCBs mainly using molten metallic sodium or potasium hydroxide with PEG, and its dechlorination efficiency to whole congeners of PCBs was 98.94% on average. Homologues of highly-chlorinated biphenyls showed better efficiencies than those of less chlorinated ones, especially mono-chlorinated biphenyl in para-position (#2) was about 37 times enriched after chemical treatment. Co-planar PCBs' dechlorination efficiency was averaged as high as 99.78%, but 3,3',4,4'-TeCB was relatively low as 96.5%. It was suggested for better dechlorination efficiency to remove the water in transformer oil prior to chemical reaction and to stir the reagents more rapidly when using alkaline dispersion method.

저자
  • 김삼권(국립환경과학원) | Sam-Cwan Kim Corresponding author
  • 김경섭(한국산업기술시험원) | Kyung-Seop Kim
  • 함상이(DK Science) | Sang-Yee Ham
  • 허종원(경기도보건환경연구원) | Jong-Won Heo
  • 이정섭(국립환경과학원) | Jung-Sub Lee
  • 석광설(국립환경과학원) | Kwang-Seol Seok
  • 이지윤(환경부) | Jee-Yoon Lee
  • 고윤화(대한LPG협회) | Yun-Hwa Ko