ABSTRACT: Background: Waste water is water that contain hazardous materials that can endanger human life, other living beings, and environments. This research aims to analyze the differences before and after the treatment of waste water using physical parameters (temperature and Total Solid Suspense (TSS)), chemical parameters (pH, Biochemical Oxygen Demand (BOD), Nitrate-Nitrogen (NO3-N), Total Factor Productivity (TF-P), oil and fat), and biological parameters (E.Coli).