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Published on: November 18, 2015
Performance modeling of subsurface-flow constructed wetlands systems
M F Dahab1, R Y Surampalli, W Liu
1Department of Civil Engineering, University of Nebraska-Lincoln, 68588-0531, USA.
Abstract:
A subsurface flow constructed wetlands (CW) system, located at a neighborhood consisting of a small housing development and golf courses outside of Lincoln, NE, was studied for its effectiveness as a small community wastewater system. Extensive monitoring was conducted biweekly between June 1996 and December 2000. Prediction models for soluble CBOD5 NH3-N, and TP removal in CW were employed for comparison with the field data. It was found that the disappearance of BOD5 and NH3-N could be approximated using first-order kinetics, but the kinetics of TP removal were unclear. The reduction rate constants regressed from the field data were found to be lower than literature reported values.
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