This study examined the simultaneous application of absorption and adsorption by adding granular activated carbon to tap water (Absorbent-A) and sodium hypochlorite (Absorbent-B), with the aim of improving the removal performance of gaseous acetaldehyde applying hybrid process. Prior to the main experiment, preliminary tests were conducted to assess the effects of HOCl concentration (50~150 ppm) and reactor temperature (25~35oC). In the main experiment, the removal performance under activated carbon-added conditions was compared using the concentration ratio (Co/ Ci) and its rate of change over time. As a result, the addition of activated carbon led to a more gradual saturation and concentration change compared to the non-addition condition, with the addition showing the most stable trend. This study suggests a basic reference for improving the performance of conventional absorbents enhancing the durability and efficiency with the activated carbon as an auxiliary material for future field applications.

Abstract
1. 서 론
2. 연구 방법
    2.1 흡수액의 제조
    2.2 실험장치 및 방법
3. 결과 및 고찰
    3.1 흡수액에 따른 제거성능 비교
    3.2 조건 변화에 따른 제거성능 비교
    3.3 활성탄 첨가에 따른 제거성능 비교
4. 결 론
References

• 박예슬(인천대학교 일반대학원 환경에너지공학과) | Ye Seul Park (Department of Environmental Energy Engineering, Graduate School of, Incheon National University)
• 박찬진(인천대학교 도시과학대학 환경공학 전공) | Chan Jin Park (Department of Environmental Engineering, College of Urban Science, Incheon National University) Corresponding author