|Overview||How Treatment Wetlands Work|
|Effectiveness and Problems||Glossary, Links, and References|
The Treatment Wetlands (Figure 1) are fully overgrown marsh cells consisting of mainly Cattails and Hardstem Bulrush. The dense canopy and biological processes aid in the overall treatment of the water flowing in from the oxidation ponds. The system requires a lower capital investment, energy demands, and labor requirements compared to other wastewater treatment processes (Gearheart, Wilbur, Williams, Hull, 1982).
A number of biological and physical processes contribute to how the Treatment Wetlands work.