화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.31, No.4, 624-629, April, 2014
DOI10.1007/s11814-013-0272-8  Export Citation
Characteristics of pellet-type adsorbents prepared from water treatment sludge and their effect on trimethylamine removal
Junghyun Bae, Nayoung Park, Goun Kim, Choul Ho Lee, Young-Kwon Park1, and Jong-Ki Jeon†
  • Department of Chemical Engineering, Kongju National University, Cheonan 330-717, Korea
  • 1School of Environmental Engineering, University of Seoul, Seoul 130-743, Korea
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We optimized the preparation method of pellet-type adsorbents based on alum sludge with the aim of developing a high-performance material for the adsorption of gaseous trimethylamine. Effects of calcination temperature on physical and chemical properties of pellet-type adsorbents were investigated. The porous structure and surface characteristics of the adsorbents were studied using N2 adsorption and desorption isotherms, scanning electron microscope, X-ray diffraction, temperature-programmed desorption of ammonia, and infrared spectroscopy of adsorbed pyridine. The adsorbents obtained from the water treatment sludge are microporous materials with well-developed mesoporosity. The pellet-type adsorbent calcined at 500 ℃ had the highest percentage of micropore volume and the smallest average pore diameter. The highest adsorption capacity in trimethylamine removal attained over the pellet-type adsorbent calcined at 500 ℃ can be attributed to the highest number of acid sites as well as the well-developed microporosity.
Keywords:Pellet-type Adsorbent;Water Treatment Sludge;Microporous Material;Acidity;Trimethylamine
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