Volatile organic compounds (VOCs) emitted from industrial gas cause equipment failure and fire accidents due to the rapid flow and concentration changes of VOCs. Therefore, it is crucial to attenuate the concentration of VOCs to ensure a constant emission rate before the control process. This study proposed an encapsulation technique to fabricate calcium- alginate gel beads containing paraffin oil as an effective absorbent. The prepared absorbent was physically characterized, and a column test observed its absorption capacity. When the oil content was 30%, the prepared beads showed the best spherical shape, attaining 96% emulsion stability, 0.014 sphericity factor, 62.7% weight variation ratio, and 4.21 ± 0.06mm diameter. In the column test that was packed with the prepared beads, the toluene absorption capacity was 497.6mg/kg. The net effect of the beads was to attenuate the peaks of toluene concentration, and to make the VOC-laden air stream more receptive for the subsequent treatment unit.

Abstract
1. 서 론
2. 실험재료 및 방법
    2.1 칼슘-알지네이트 겔 비드 제조
    2.2. 칼슘-알지네이트 겔 비드의 물리화학적 특성
    2.3. 칼슘-알지네이트 겔 비드의 톨루엔 흡수 특성
3. 결과 및 토론
    3.1 칼슘-알지네이트 겔 비드의 물리화학적 특성
    3.2. 칼슘-알지네이트 겔 비드의 표면 특성
    3.3. 칼슘-알지네이트 겔 비드의 가스상 톨루엔 흡수특성
4. 결 론
감사의 글
References

• 곽채은(서울과학기술대학교 환경공학과) | Chae-eun Gwak (Department of Environmental Engineering, Seoul National University of Science and Technology)
• 김대근(서울과학기술대학교 환경공학과) | Daekeun Kim (Department of Environmental Engineering, Seoul National University of Science and Technology) Corresponding Author