10 treatment processes for oily wastewater!
一、Definition of oily wastewater Oily wastewater refers to wastewater that contains fats (fatty acids, soaps, fats, waxes, etc.) and various types of oils (mineral oils, animal and vegetable oils). Oily wastewater is characterized by high levels of chemical oxygen demand (COD) and biochemical oxygen demand (BOD), a certain odor and color, flammability, easy oxidation and…