Wetland Water Quality Models

The CE-QUAL-ICM model has been used for a wetland application. Additionally, a screening-level, user-friendly, PC-based mathematical model is available for making pollutant removal estimates for wetlands (PREWet). PREWet assumes steady-state conditions and either fully mixed or one-dimensional, longitudinally varying concentrations. These simplifying assumptions allow rapid model implementation with minimal input data requirements. Given basic wetland characteristics and the pollutants of concern, PREWet estimates the amount of pollutant treatment (i.e., removal) provided by a wetland. PREWet addresses biochemical oxygen demand, suspended solids, coliform bacteria, total nitrogen, total phosphorus, and contaminants (organic chemicals and trace metals).