Earticle

초록

영어

In this study, electrolysis was used to decompose PFOS, PFOA, and PFBS in PFCs. Experiments were conducted under the conditions of voltage, electrolyte concentration, and individual or composite PFCs using STS and Ti electrode plates (interval 2 cm) in a batch type reactor (200 ml). PFCs were analyzed using LC/MS/MS (Thermo Scientific). The decomposition of PFOS, PFOA, and PFBS using electrolysis was confirmed to be 97.2%, 65.2%, and 50.6%. The higher the input energy or the higher the electrolyte concentration, the higher the decomposition ratio. It was confirmed that the decomposition ratio of the STS electrode plate was about 30% (PFOS) higher than that of the Ti electrode plate. Because of the SO3 - functional group and the -COOH functional group present in the sample, it was confirmed that PFOS → PFOA → PFBS had a great influence on the decomposition efficiency. That is, long-chain substances with high bioaccumulation properties were decomposed into short chains through electrolysis.

한국어

본 연구에서는 전기분해를 이용하여, PFCs 중의 PFOS, PFOA, PFBS를 분해하고자 하였다. Batch type의 반응조 (200 ml)에 STS 및 Ti 전극판(간격 2 cm)을 이용하여, 전압, 전해질농도, 개별 또는 복합 PFCs의 조건으로 실험을 실시 하였다. PFCs는 LC/MS/MS(Thermo Scientific)를 사용하여 분석하였다. 전기분해를 이용한 PFOS, PFOA, PFBS의 분해 는 97.2%, 65.2%, 50.6%가 되는 것을 확인하였다. 투입되는 에너지가 높거나 전해질농도가 높을수록 분해율이 높아졌다. STS 전극판의 분해율이 Ti 전극판보다 약 30% (PFOS) 높은 것을 확인하였다. 시료 중에 존재하는 SO3  작용기와 –COOH 작용기 때문에, PFOS → PFOA → PFBS로 영향을 끼쳐 분해효율에 큰 영향을 주는 것을 확인하였다. 즉, 전기분해를 통 하여 생물농축성이 높은 긴 사슬 물질을 짧은 사슬로 분해하였다.

목차

Abstract
요약문
I. 서론
II. 연구방법
III. 결과 및 고찰
IV. 결론
References

키워드

과불화화합물 PFOS PFOA PFBS 전기분해 PFCs perfluorinated compounds PFOS PFOA PFBS electrolysis

저자

• Hoesuk Jung [ 정회석 | Department of Environmental Engineering, University of Seoul ]
• Dajin Lee [ 이다진 | Department of Environmental Engineering, University of Seoul ]
• Ihnsup Han [ 한인섭 | Department of Environmental Engineering, University of Seoul ] Corresponding Author

참고문헌

발행기관

간행물