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Issue
Korean Journal of Chemical Engineering,
Vol.31, No.4, 624-629, 2014
Characteristics of pellet-type adsorbents prepared from water treatment sludge and their effect on trimethylamine removal
Bae J, Park N, Kim G, Lee CH, Park YK, Jeon JK
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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[Cited By]
  1. Lee CH, Park N, Kim PG, Jeon JK, Applied Chemistry for Engineering, 27(1), 62, 2016
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