DUCKS ON SEWAGE TREATMENT PONDS—SPASrnOR DEATH TRAPS?

摘要

Our warm sewage makes its way to wastewater treatmentrnplants (WWTPs) where solids, microbes, and chemicals arernremoved before it is released back into the environment.rnDuring this process, wastewater may pass through holdingrnponds, which may be large open water bodies. In northernrnclimates in the dead of winter, the water in these pondsrnmay remain at approximately 10 °C, despite frigid atmosphericrntemperatures (e.g.,