| 초록 |
In order to prevent harmful effects on humans and environment, carwash wastewaters have to treat before discharging into the surface water bodies because they contain various pollutants such as detergents, oil, grease, chemicals and road grime, and heavy metals, etc. In this study, the microbubbles were employed to separate for suspended particles include the oils, dusts, and detergents without any coagulants. During the flotation process, the small amounts of oxidation agent such as ozone gas was introduced with air for facilitate of pollutants disintegration. The disintegrated pollutants from oils and detergents were used as biodegradable carbon sources in soil covered oxidation process (SCOP). The experimental results demonstrated the efficiency of the flotation, ozonation, and SCOP in removing suspended solids and chemical contaminants from real carwash wastewater. |
