Large scale constructed wetlands for phosphorus removal, an effective nonpoint source pollution treatment technology

摘要

The Everglades Stormwater Treatment Areas (STAs) are large-scale freshwater wetlands constructed to reduce total phosphorus (TP) concentrations in runoff to support restoration of the Everglades. TP reduction and retention in STAs occurs through settling, plant growth and accumulation of dead plant material in a layer of peat. This study evaluated the performance of six treatment flow-ways in STA - 2 and STA-3/4, two of the best performing Everglades STAs, through water and TP budget analyses based on over a decade of hydrological, meteorological, and water quality data.