Industrial Water Treatment
Due to urban population development and industrialization, domestic and industrial water demand has significantly increased. This has also resulted in an increase in the quantity of wastewater that is discharged into the sewage system. As a result, recycling and reusing wastewater has gained major significance for increasing water availability and protecting water resources. The goal of wastewater treatment is to bring the concentrations of particular contaminants down to ranges that are secure for reusing effluent or releasing it into the environment.
Nanobubbles improve diffusion and transport processes in environmental applications. The unique characteristics of Nanobubbles, e.g., smaller sizes, lower rising velocities, larger interfacial area, higher internal pressure, and longer residence time, have stimulated great interest. The high stability of Nanobubbles, i.e., days or months can be attributed to the low interior gas dissolution by the surrounding water. This longevity of Nanobubbles combined with other characteristics, such as the virtual disappearance of buoyancy, extremely large surface-to-volume ratio, high rate of oxygen dissolution, high internal pressure, and free radical generation, has encouraged their use.