depurating
/ˈdɛpjəˌreɪtɪŋ/
verb
- Present participle of depurate: the act of removing impurities or purifying.
- Depurating the metal requires heating it to a very high temperature.
- She spent the afternoon depurating the herbs for the medicinal tea.
- The factory is depurating the wastewater before releasing it into the river.