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标题：Adsorption of naphthalene onto activated carbons derived from milk bush kernel shell and flamboyant pod
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作者：Abass Olanrewaju Alade ; Omotayo Sarafadeen Amuda ; Tinuade Jolaade Afolabi 等
期刊名称：Journal of Environmental Chemistry and Ecotoxicology
电子版ISSN：2141-226X
出版年度：2012
卷号：4
期号：7
页码：124-132
DOI：10.5897/JECE11.041
语种：English
出版社：Academic Journals
摘要：The suitability and the performance of activated carbon produced from flamboyant pod (FB) and milk bush kernel shell (MB) for the effective removal of naphthalene from simulated wastewater was conducted to determine the influence of increasing initial concentrations (50 – 150 mg/L) on adsorption. The activated carbon obtained from milk bush kernel shell (25 – 40%, w/w) decreased with increased carbonization temperature (300 - 600°C) while those obtained from flamboyant pod was 15 - 20%, w/w. The removal efficiencies of FB produced at 300°C (FB300) increased from 51.49 - 53.28%, while removal efficiencies of FB produced at 500°C (FB500) and 600°C (FB600) decreased from 55.51 - 54.42% and 59.71 - 58.56%, respectively, as the initial concentrations of naphthalene increased. The removal efficiencies of MB were relatively lower than those obtained from FB and decreased from 48.18 - 43.65%, 53.55 - 50.37% and 56.41 - 52.53% for adsorbent produced at 300°C (MB300), 500°C (MB500) and 600°C (MB600), respectively, as the initial concentrations of naphthalene increased. The Freundlich exponent ‘n’ for the adsorption of naphthalene onto FB300, FB500, FB600, MB300, MB500 and MB600 were 0.94, 1.04, 1.05, 1.19, 1.13 and 1.16, respectively, and were within the range (1
关键词：Adsorption; activated carbons; agricultural wastes; carbonization; isothermal models; naphthalene.