Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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A Study on the Application of Adsorption Function in Metal Filter for the Removal of VOCs in Underground Facilities

지하시설 VOCs 제거를 위한 메탈 필터의 흡착기능부여 연구

  • Jang, Younghee (Department of Environmental Energy Engineering, Graduate School of Kyonggi University) ;
  • Lee, Sang Moon (Department of Environmental Energy Engineering, Kyonggi University) ;
  • Yang, Heejae (Department of Environmental Energy Engineering, Kyonggi University) ;
  • Kim, Sung Su (Department of Environmental Energy Engineering, Kyonggi University)
  • 장영희 (경기대학교 일반대학원 환경에너지공학과) ;
  • 이상문 (경기대학교 환경에너지공학과) ;
  • 양희재 (경기대학교 환경에너지공학과) ;
  • 김성수 (경기대학교 환경에너지공학과)
  • Received : 2019.08.07
  • Accepted : 2019.09.24
  • Published : 2019.10.10
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Abstract

Indoor air quality underground facilities are not equipped for the removal of volatile organic compounds (VOCs) and they are usually treated by diffusion methods such as ventilation. In this study, an adsorption filter was prepared using various coating methods such as carbon nano fiber (CNF) and dip coating. As a result, the adsorption performance was improved by 2 to 20 times or more compared to that of using the metal foam support. This is maybe due to the enhancement of pore distribution which was confirmed by SEM. In addition, the adsorption performance was 13.95 mg/g by adding lignin, and also an average adsorption performance of 13.25 mg/g was maintained after washing indicating that a highly durable adsorption filter material was prepared. It can be suggested that the developed adsorption filter material can be a potential solution that can fundamentally control VOCs, not via the concentration reduction of mechanical ventilation in underground facilities.

실내공기질 중 지하시설은 휘발성유기화합물(VOC, volatile organic compound)의 처리가 미흡한 실정이며, 이를 환기와 같은 확산법이 아닌 오염물질 저감하기 위하여 다양한 제조, 활성화법을 이용해 메탈 필터에 흡착성을 부여한 제올라이트 코팅 흡착 필터소재를 제조하였다. 그 결과, 메탈폼 지지체 대비 약 2~20배 이상 흡착 성능의 증진을 확인하였으며 이는 기공의 증진에 기반함을 SEM 분석으로 확인하였다. 또한 리그닌을 첨가함에 따라 13.95 mg/g의 흡착 성능을 확보하였으며, 세척 후에도 평균 13.25 mg/g의 유사한 흡착 성능을 확보하여 높은 내구성을 가진 흡착 필터소재를 제조하였음을 확인하였다. 개발된 흡착 필터소재는 지하시설 내 기계적 환기로의 농도 저감이 아닌 근본적으로 VOCs를 제어할 수 있는 해결방법으로 제시할 수 있을 것으로 판단하였다.

Keywords

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