n-Nonane, 1¸2¸4-trimethylbenzene (124-TMB), toluene, total xylene (TXYL), isopropyl alcohol (IPA), and methyl ethyl alcohol (MEK) are major volatile organic compounds (VOCs) emitted from printing industries. The absorption amount of a single VOC per unit weight of silicone oil was as follows in the order of 189.5 g/kg-silicone oil for n-nonane, 91.7 g/kg-silicone oil for 124-TMB, and 60.1 g/kg-silicone oil for TXYL. Although hydrophobic VOCs were more absorbed in silicone oil than hydrophilic VOCs such as IPA and MEK, IPA and MEK, which had log Kow values of 1 or less, also were absorbed more than 26.0 g/kg-silicone oil. In two and three mixed VOCs of n-nonane, 124-TMB, and toluene, the absorption amount of each in silicon oil was less than that of single a VOC. The total absorption amount of two mixed VOCs ranged from 47.9 g to 138.7 g/kg-silicone oil, and the total absorption amount of three mixed VOCs was 65.8 g/kg-silicone oil. These results suggest that silicone oil is a promising pretreatment solution capable of absorbing high concentrations of VOCs that are intermittently emitted from printing industries. The absorption information of VOCs obtained in this study can be used as the design parameters of a damping device for the pretreatment of VOCs.

Abstract
1. 서 론
2. 실험방법
    2.1 흡수제와 VOCs
    2.2 실험장치 및 단일 VOC 흡수 실험
    2.3 혼합 VOCs 흡수 실험
    2.4 실리콘 오일의 VOCs 댐핑능 평가
    2.5 VOCs 흡수량 계산
    2.6 VOCs 분석
3. 실험 결과 및 고찰
    3.1 실리콘 오일의 VOCs 댐핑 특성
    3.2 실리콘 오일의 단일 VOCs 흡수량 비교
    3.3 실리콘 오일의 혼합 VOCs 흡수 특성
4. 결 론
References

• 강수경(이화여자대학교 환경공학과) | Soo-Kyung Kang (Department of Environmental Science and Engineering, Ewha Womans University)
• 장시내(이화여자대학교 환경공학과) | Shi-nae Jang (Department of Environmental Science and Engineering, Ewha Womans University)
• 윤정희(이화여자대학교 환경공학과) | Jeonghee Yun (Department of Environmental Science and Engineering, Ewha Womans University)
• 조경숙(이화여자대학교 환경공학과) | Kyung-Suk Cho (Department of Environmental Science and Engineering, Ewha Womans University) Corresponding author