文章基本信息

标题：Adsorption of Nutrients from Stormwater Using Sawdust
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作者：K. D. Harmayani ; A. H. M. F. Anwar
期刊名称：International Journal of Environmental Science and Development
印刷版ISSN：2010-0264
出版年度：2012
卷号：3
期号：2
页码：114-117
DOI：10.7763/IJESD.2012.V3.199
摘要：This study investigates the adsorption characteristics of sawdust for removing nutrients (e.g., NH3-N, NO3-N, and NO2-N) from stormwater.A series of laboratory batch experiments was performed and the effects of different parameters on nutrient adsorption were observed.The parameters of concern include: initial concentration (0.5-5mg/L) and dosage (2-20mg of dry sawdust).Results revealed that the maximum removal was obtained at lower initial concentration.An increase of adsorbent dosage increased the percent removal of NH3-N, NO3-N, and NO2-N.The maximum removal of NO3-N, and NO2-N was found 100%, while NH3-N removal was found 55%.The sorption of sawdust was characterized by Langmuir and Freundlich isotherm and the results show that the correlation coefficient of applicability (R2) of Freundlich model (R2 = 0.8324, 0.9856, and 0.9231 for NH3-N, NO3-N and NO2-N respectively) fits better than Langmuir (R2 = 0.7963, 0.9751, and 0.8049 for NH3-N, NO3-N and NO2-N respectively).
关键词：Adsorption; equilibrium isotherm; nutrients removal; sawdust