Experimental comparative study between simple and multi-tube DBD ozone generator with same volume discharge for wastewater treatment

Numerous studies have focused on analyzing and enhancing the performance of ozone generation systems to achieve higher ozone concentrations with lower energy consumption. This paper presents an experimental comparative study between a multi-tube DBD ozone generator with a parallel tube configuration and a simple DBD ozone generator with the same discharge volume, where the energy efficiency and produced ozone concentration were analyzed. Subsequently, the multi-tube ozone generator was employed for the wastewater treatment of the Moulay Slissen sewage-treatment plant in Sidi Bel Abbes. The results demonstrated that the new multi-tube ozone generator exhibited significantly improved performance in terms of energy efficiency and produced ozone concentration levels compared to the simple DBD generator. Furthermore, through the analyses conducted on the wastewater samples before and after treatment, the advanced generator proved its efficacy in improving the physicochemical and bacteriological quality of wastewater.