Considering the characteristics of aldehydes among volatile organic compounds, a combined process was established by linking an absorbent and a photocatalytic reactor. Experiments to find the optimal operating conditions of the combined process showed that as the amount of photocatalyst coating increases, the wavelength of the ultraviolet lamp used becomes shorter, the photodegradation rate becomes faster, and the removal efficiency increases. It was also demonstrated that by controlling the relative humidity during the connection process of the combined process, the re-evaporation phenomenon at the front end (absorption area) of the hybrid process can be improved and the removal efficiency at the back end (photocatalytic reaction area) can be significantly enhanced. This confirmed the need for a combined process that complements the advantages and disadvantages of each process.

1. 서 론
2. 연구 방법
3. 결과 및 고찰
    3.1 광촉매 코팅 양에 따른 제거효율 비교
    3.2 UV-lamp 조사 방식 및 유입농도에 따른 제거효율 비교
    3.3 UV-lamp의 파장에 따른 제거효율 비교
    3.4 상대습도에 따른 제거 효율 비교
4. 결 론

• 최서령(인천대학교 일반대학원 환경에너지공학과) | Seo Ryeong Choi (Dept. of Environmental Energy Engineering, Graduate School of Incheon National University, Incheon, Republic of Korea)
• 박찬진(인천대학교 도시과학대학 환경공학 전공) | Chan Jin Park (Dept. of Environmental Engineering, College of Urban Science, Incheon National University, Incheon, Republic of Korea) Corresponding author