Tanthapanichakoon W, Ariyadejwanich P, Japthong P, Nakagawa K, Mukai S R, Tamon H
National Nanotechnology Center, Thailand Science Park, 111 Paholyothin Road, Klong Luang, Pathumthani 12120, Thailand.
Water Res. 2005 Apr;39(7):1347-53. doi: 10.1016/j.watres.2004.12.044. Epub 2005 Mar 16.
Liquid-phase adsorption-desorption characteristics and ethanol regeneration efficiency of an activated carbon prepared from waste tires and a commercial activated carbon were investigated. Water vapor adsorption experiments reveal that both activated carbons showed hydrophobic surface characteristics. Adsorption experiments reveal that the prepared activated carbon possessed comparable phenol adsorption capacity as the commercial one but clearly larger adsorption capacity of two reactive dyes, Black 5 and Red 31. It was ascertained that the prepared activated carbon exhibited less irreversible adsorption of phenol and the two dyes than its commercial counterpart. Moreover, ethanol regeneration efficiency of the prepared AC saturated with either dye was higher than that of the commercial AC. Because of its superior liquid-phase adsorption-desorption characteristics as well as higher ethanol regeneration efficiency, the prepared activated carbon is more suitable for wastewater treatment, especially for adsorbing similarly bulky adsorbates.
研究了由废轮胎制备的活性炭和商业活性炭的液相吸附-解吸特性以及乙醇再生效率。水蒸气吸附实验表明，两种活性炭均表现出疏水表面特性。吸附实验表明，制备的活性炭具有与商业活性炭相当的苯酚吸附容量，但对两种活性染料（黑5和红31）的吸附容量明显更大。可以确定的是，制备的活性炭对苯酚和两种染料的不可逆吸附比商业活性炭少。此外，用任一种染料饱和的制备的活性炭的乙醇再生效率高于商业活性炭。由于其优异的液相吸附-解吸特性以及更高的乙醇再生效率，制备的活性炭更适合于废水处理，特别是用于吸附类似体积的吸附质。
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