Journal of odor and indoor environment (실내환경 및 냄새 학회지)

Korean Society for Indoor Environment (한국실내환경학회)
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Evaluation of acetaldehyde removal performance of a hybrid adsorbent consisting of organic and inorganic materials

유무기 융복합 흡착제의 아세트알데하이드 제거 성능 평가

  • Ahn, Hae Young (Department of Civil and Environmental Engineering, Sejong University) ;
  • Lee, Yoon Kyoung (Department of Civil and Environmental Engineering, Sejong University) ;
  • Song, JiHyeon (Department of Civil and Environmental Engineering, Sejong University)
  • 안해영 (세종대학교 건설환경공학과) ;
  • 이윤경 (세종대학교 건설환경공학과) ;
  • 송지현 (세종대학교 건설환경공학과)
  • Received : 2018.11.21
  • Accepted : 2018.12.10
  • Published : 2018.12.31
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Abstract

To abate the problem of odor from restaurants, a hybrid adsorbent consisting of organic and inorganic materials was developed and evaluated using acetaldehyde as a model compound was deveioped and evaluated. Powders of activated carbon, bentonite, and calcium hydroxide were mixed and calcinated to form adsorbent structure. The surface area of the hybrid adsorbent was smaller than that of high-quality activated carbon, but its microscopic image showed that contours and pores were developed on its surface. To determine its adsorption capacity, both batch isotherm and continuous flow column experiments were performed, and these results were compared with those using commercially available activated carbon. The isotherm tests showed that the hybrid adsorbent had a capacity 40 times higher than that of the activated carbon. In addition, the column experiments revealed that breakthrough time of the hybrid adsorbent was 2.5 times longer than that of the activated carbon. These experimental 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 concentration of 40 ppm for a 5-month period. Since various odor compounds are commonly emitted as a mixture when meat is barbecued, it is necessary to conduct a series of experiments and HSDM simulations under various conditions to obtain design parameters for a full-scale device using the hybrid adsorbent.

Keywords

Acknowledgement

Supported by : 환경부

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