Response to high oil prices can be summarized as improving supply stability and reducing dependence on oil. Among them, measures to reduce dependence on oil include improving oil utilization efficiency, replacing it with other fuels, and developing an...
Response to high oil prices can be summarized as improving supply stability and reducing dependence on oil. Among them, measures to reduce dependence on oil include improving oil utilization efficiency, replacing it with other fuels, and developing and distributing new and renewable energy to replace oil. Among the emerging alternatives in this situation, the use of unconventional oil resources is emerging. However, water management in the plant process is a very important key factor because the production of unconventional oil resources requires a very large amount of water. Produced water among the wastewater generated in the plant process accounts for about 70% of the total wastewater, and various pollutants are mixed, which can have a great adverse effect on the overall ecosystem when discharged to the water system. Therefore, in this study, in order to remove the oil in the produced water, the Eductor type of Induced Gas Flotation process was designed, and a study was conducted to derive the optimal operating conditions through experiments by operating conditions. In order to generate optimal bubbles, the eductor design was conducted, and the operating conditions were set to the Oil inlet concentration, Salinity, Recycle Ratio, Water Temperature, Residence Time to derive the optimal operating conditions. As a result of the experiment, the highest removal efficiency was 99.4% and 97.5%, respectively, when Salinity : 20,000 ppm and Recycle Ratio : 80% were shown in both water temperature conditions of 40°C and 50°C, and the highest removal efficiency was 80.0% and 85.1% when Salinity : 20,000 ppm and Recyclle Ratio : 120%, respectively, in both water temperature conditions of 40°C and 50°C. Salinity and Water Temperature were the main factors influencing initial treatment stabilization, and when oil at a concentration higher than the design concentration was introduced, the removal efficiency could be increased by about 10% by increasing the Residence time. Keywords : Induced Gas Flotation, Oily wastewater, Eductor, Micro-Bubble, Salinity