Carbonaceous adsorbents produced from coffee lees
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Carbons derived through thermal decomposition of natural products usually showed a texture reflecting the original structure of the starting material such as the cellular structure. The present authors have been studying structure and properties of carbons derived from various natural products [1, 2, 3]. It has been found that the charcoal derived from ground coffee lees showed a peculiar texture with pock mark and showed an excellent gas-phase adsorption of toluene, and that the activated carbon (AC) derived from the coffee lees-based charcoal showed an excellent liquid-phase adsorption of 2-methylisoborneol (2-MIB).
Benzene, toluene, xylene are the harmful volatile organic compounds (VOCs) and the removal of such VOCs from emission stream is recently of considerable interest. Adachi et al.  have investigated the adsorption behavior of coffee lees waste and have reported that the spherosome fraction contained can adsorb benzene efficiently. In the present paper, however, we use...
KeywordsActivate Carbon Charcoal Activate Carbon Powder Adsorption Test Geosmin
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