New study shows electric fields can improve the efficiency of wastewater purification

Ammonia is one of many pollutants present in wastewater and can be toxic for marine and terrestrial life. Therefore, in a process called air stripping, it is removed from wastewater and later used as a fertilizer or fuel. Air stripping converts ammonia into a gas that can then escape the wastewater from its surface. But this process is not efficient: It is energy-intensive, and requires specific temperatures, air supply, and many chemicals, making it expensive.

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