Simulation Of Constructed Wetland
Performance Using The Advection Diffusion
Equation
Author(s)
V. Popov, S. Ahmed & M. Idris Qureshi
Abstract
The advection diffusion equation with variable coefficients was used to predict
the performance of a subsurface constructed wetland (SSCW) treatment plant.
The effect of evapo-transpiration on the velocity of flow and change of rate of
biodegradation kinetics with the length of flow was considered. The differential
equation was solved using the Frobenius method. The model was validated on
experimental results from a pilot plant in Indian climatic conditions. The data
used in this work were obtained from various hydraulic and BOD loadings.
Records of biochemical oxygen demand (BOD) concentrations at inlet, outlet
and intermediate levels through various stages of the treatment process over
eighteen months were used for calibration of the model. The results of the model
show that it is an efficient and a robust tool for prediction of the waste-water
treatment performance of a constructed wetland.
Keywords: mathematical modeling, constructed wetland, model studies,
biochemical oxygen demand.
1 Introduction
Wetlands are considered as low cost alternatives for treating municipal,
industrial, and agricultural effluents. Constructed wetlands (CWs) may be
Keywords
mathematical modeling, constructed wetland, model studies,
biochemical oxygen demand.
Related Book
Other papers in this volume
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