Produced water treatment refers to the processes used to cleanse and manage water that emerges as a byproduct during oil & gas extraction. This water often contains oil, salts, heavy metals, and organic contaminants. Treatment involves combinations of physical separation, chemical treatment, and advanced membrane or biological methods so that the water can be safely reused, discharged, or reinjected. As environmental regulations tighten and water scarcity rises, effective treatment solutions are becoming ever more essential for sustainable operations in onshore and offshore settings.