Shallow Injection Imperfectly Filters Florida Wastewater

Shallow Injection Imperfectly Filters Florida Wastewater

Wastewater from agricultural runoff and human waste contains nutrients such as nitrogen and phosphorus, which can pollute natural waters and cause harmful algal blooms. These nutrients may persist at low levels even after wastewater has been biologically and chemically treated. In southern Florida, many wastewater treatment facilities inject the treated water into wells 60–120 feet deep. As the water percolates underground, it is diluted by rain…