Treatab？l？ty of O？ly Wastewater and Des？gn of the Treatment System

The oily wastewater depending on the source, has a very complex composition, such as suspended and dissolved solids, organic salts, oil and grease, aliphatic and aromatic hydrocarbons, sulfides and metals. Because of this content, it poses a danger to land, water, air and human life. Therefore, oil wastewater treatment has become a problem requiring urgent solution, and studies on treatment techniques have recently gained momentum. Many methods such as electrochemical treatment, membrane filtration, biological treatment and hybrid technologies are used for the treatment of oil-containing wastewater. Electrochemical treatment, membrane filtration, biological treatment, hybrid technologies are some of these methods. The aim of this study is to design a chemical and biological treatment system that will provide the discharge limits by determining the chemical treatability of the wastewater from a fuel storage facility. According to the results of the research, COD removal efficiency was determined as 94%, suspended solids removal efficiency was 96% and oil grease removal efficiency was 98% after treatment with acid cracking, dissolved air flotation and activated sludge system