Modelling of vertical subsurface flow constructed wetlands for treatment of domestic sewage and stormwater runoff by subwet 2.0

Modelling of vertical subsurface flow constructed wetlands for treatment of domestic sewage and... 1 Introduction</h5> A constructed wetland (CW) is an alternative engineered process commonly used for treating contaminated water. CWs embody treatment procesess analogous to those found in natural wetlands; including physical, chemical and biological processes, such as sedimentation, filtration, precipitation, sorption, plant uptake, microbial decomposition and nitrogen transformations ( Dan et al., 2011; Faulwetter et al., 2009; Liang et al., 2009 ).</P>With the increasing number of CWs being built, the modelling of wetland function and performance has also attracted more attention. The main objectives of these modelling studies are to better understand the treatment processes in CWs and to improve the design, management, monitoring and maintenance of CWs. The SubWet 2.0 model is an interesting option that was originally developed for HSSF wetlands. This model has been reviewed and described previously by Jørgensen and Gromiec (2011) ; Chouinard et al. (2014a,b); Chouinard et al. (2014a,b) . A key feature of SubWet 2.0 is the relative ease in calibrating the model to site conditions. This is done by adjusting the rate coefficients (within a defined range) until simulated values match observed values. In this manner, SubWet provides an integrated process response which lessens the need to know specific details about http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ecological Engineering Elsevier

Modelling of vertical subsurface flow constructed wetlands for treatment of domestic sewage and stormwater runoff by subwet 2.0

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0925-8574
eISSN
1872-6992
D.O.I.
10.1016/j.ecoleng.2014.10.027
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> A constructed wetland (CW) is an alternative engineered process commonly used for treating contaminated water. CWs embody treatment procesess analogous to those found in natural wetlands; including physical, chemical and biological processes, such as sedimentation, filtration, precipitation, sorption, plant uptake, microbial decomposition and nitrogen transformations ( Dan et al., 2011; Faulwetter et al., 2009; Liang et al., 2009 ).</P>With the increasing number of CWs being built, the modelling of wetland function and performance has also attracted more attention. The main objectives of these modelling studies are to better understand the treatment processes in CWs and to improve the design, management, monitoring and maintenance of CWs. The SubWet 2.0 model is an interesting option that was originally developed for HSSF wetlands. This model has been reviewed and described previously by Jørgensen and Gromiec (2011) ; Chouinard et al. (2014a,b); Chouinard et al. (2014a,b) . A key feature of SubWet 2.0 is the relative ease in calibrating the model to site conditions. This is done by adjusting the rate coefficients (within a defined range) until simulated values match observed values. In this manner, SubWet provides an integrated process response which lessens the need to know specific details about

Journal

Ecological EngineeringElsevier

Published: Jan 1, 2015

References

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