Modeling of Cadmium Removal from Domestic Wastewater in Constructed Wetlands Using STELLA Simulation Program
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 15, Issue 2
Abstract
A mathematical model was developed to simulate cadmium removal from wastewater in free water surface (FWS) and subsurface flow (SF) constructed wetlands using STELLA simulation program. The model simulated the accumulation of cadmium in soil (Cds), uptake by plants (Cdp), and residual concentration in effluent (Cdww_eff). The model was calibrated using one-half of the experimental data for the adjustment of the coefficients and the remaining data for model verification. The comparison of simulated and experimental values of Cds, Cdp, and Cdww_eff showed good agreement. The results indicated that the developed mathematical model could be useful for predicting the fate of cadmium when treating domestic effluents in constructed wetlands.
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Acknowledgments
The writers would like to express their sincere thanks to the Environmental Engineering Program in the Civil Engineering Department, Faculty of Engineering, Mahidol University, for providing the assistance and facilities during the course of this study.
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Published In
Journal of Hazardous, Toxic, and Radioactive Waste
Volume 15 • Issue 2 • April 2011
Pages: 114 - 120
Copyright
© 2011 American Society of Civil Engineers.
History
Received: May 25, 2010
Accepted: Oct 5, 2010
Published online: Nov 2, 2010
Published in print: Apr 1, 2011
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