유무기 융복합 흡착제의 아세트알데하이드 제거 성능 평가 (Evaluation of acetaldehyde removal performance of a hybrid adsorbent consisting of organic and inorganic materials)

서지정보

· 발행기관 : 한국냄새환경학회
· 수록지 정보 : 실내환경 및 냄새 학회지 / 17권 / 4호 / 372 ~ 380페이지
· 저자명 : 안해영, 송지현, 이윤경

초록

To abate the problem of odor from restaurants, a hybrid adsorbent consisting of organic and inorganic materialswas developed and evaluated using acetaldehyde as a model compound was deveioped and evaluated. Powdersof activated carbon, bentonite, and calcium hydroxide were mixed and calcinated to form adsorbent structure. Thesurface area of the hybrid adsorbent was smaller than that of high-quality activated carbon, but its microscopicimage showed that contours and pores were developed on its surface. To determine its adsorption capacity, bothbatch isotherm and continuous flow column experiments were performed, and these results were compared withthose using commercially available activated carbon. The isotherm tests showed that the hybrid adsorbent had acapacity 40 times higher than that of the activated carbon. In addition, the column experiments revealed thatbreakthrough time of the hybrid adsorbent was 2.5 times longer than that of the activated carbon. Theseexperimental results were fitted to numerical simulations by using a homogeneous surface diffusion model(HSDM); the model estimated that the hybrid adsorbent might be able to remove acetaldehyde at a concentrationof 40 ppm for a 5-month period. Since various odor compounds are commonly emitted as a mixture when meatis barbecued, it is necessary to conduct a series of experiments and HSDM simulations under various conditionsto obtain design parameters for a full-scale device using the hybrid adsorbent.

영어초록

To abate the problem of odor from restaurants, a hybrid adsorbent consisting of organic and inorganic materialswas developed and evaluated using acetaldehyde as a model compound was deveioped and evaluated. Powdersof activated carbon, bentonite, and calcium hydroxide were mixed and calcinated to form adsorbent structure. Thesurface area of the hybrid adsorbent was smaller than that of high-quality activated carbon, but its microscopicimage showed that contours and pores were developed on its surface. To determine its adsorption capacity, bothbatch isotherm and continuous flow column experiments were performed, and these results were compared withthose using commercially available activated carbon. The isotherm tests showed that the hybrid adsorbent had acapacity 40 times higher than that of the activated carbon. In addition, the column experiments revealed thatbreakthrough time of the hybrid adsorbent was 2.5 times longer than that of the activated carbon. Theseexperimental results were fitted to numerical simulations by using a homogeneous surface diffusion model(HSDM); the model estimated that the hybrid adsorbent might be able to remove acetaldehyde at a concentrationof 40 ppm for a 5-month period. Since various odor compounds are commonly emitted as a mixture when meatis barbecued, it is necessary to conduct a series of experiments and HSDM simulations under various conditionsto obtain design parameters for a full-scale device using the hybrid adsorbent.

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