Adsorption of Nutrients from Stormwater Using Sawdust
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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 themaximum 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-Nrespectively) fits better than Langmuir (R2 = 0.7963, 0.9751, and 0.8049 for NH3-N, NO3-N and NO2-N respectively).
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Harmayani, Kadek; Anwar, Faisal (2012)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 ...
Harmayani, Kadek Diana (2013)In this study, the sawdust of radiata pine wood was chosen as an adsorption medium to remove nutrients from stormwater. A series of batch and column experiments was carried out and a mass transfer correlation was developed ...
Adsorption kinetics and equilibrium study of nitrogen species onto radiata pine (Pinus radiata) sawdustHarmayani, K.; Anwar, Faisal (2016)Nitrogen species (NH3-N, NO3-N, and NO2-N) are found as one of the major dissolved constituents in wastewater or stormwater runoff. In this research, laboratory experiments were conducted to remove these pollutants from ...