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Comparison of Adsorption Performance of Ammonia and Formaldehyde Gas Using Adsorbents Prepared from Water Treatment Sludge and Impregnated Activated Carbon
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  • Journal title : Applied Chemistry for Engineering
  • Volume 27, Issue 1,  2016, pp.62-67
  • Publisher : The Korean Society of Industrial and Engineering Chemistry
  • DOI : 10.14478/ace.2015.1123
 Title & Authors
Comparison of Adsorption Performance of Ammonia and Formaldehyde Gas Using Adsorbents Prepared from Water Treatment Sludge and Impregnated Activated Carbon
Lee, Choul Ho; Park, Nayoung; Kim, Goun; Jeon, Jong-Ki;
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In this study, a pellet-type adsorbent was prepared by using the water-treatment sludge as a raw material, and its physical and chemical properties were analyzed through -adsorption, XRD, XRF, and -TPD measurements. Adsorption performance for gaseous ammonia and formaldehyde was compared between the pellet-type adsorbents prepared from water-treatment sludge and the impregnated activated carbon. Although the surface area and pore volume of the pellet-type adsorbent produced from water-treatment sludge were much smaller than those of the impregnated activated carbon, the pellet-type adsorbent produced from water-treatment sludge could adsorb ammonia gas even more than that of using the impregnated activated carbon. The pellet-type adsorbent prepared from water-treatment sludge showed a superior adsorption capacity for ammonia which can be explained by chemical adsorption ascribed to the higher amount of acid sites on the pellet-type adsorbent prepared from water-treatment sludge. In the case of formaldehyde adsorption, the impregnated activated carbon was far superior to the adsorbent made from the water-treatment sludge, which can be attributed to the increased surface area of the impregnated activated carbon.
water-treatment sludge;impregnated activated carbon;gas adsorption;ammonia;formaldehyde;
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