Scientists discover that the natural purification of groundwater is enhanced by nitrate

In recent years, the world has been experiencing floods and droughts as extreme rainfall events have become more frequent due to climate change. For this reason, securing stable water resources throughout the year has become a national responsibility called "water security," and "Aquifer Storage Recovery (ASR)", which stores water in the form of groundwater in the ground when water resources are available and withdraws it when needed, is attracting attention as an effective water resource management technique.