Effect of Voltage Application and Various Accelerators on Methane Production Efficiency in Anaerobic Digestion

Abstract

Research was conducted on methods to improve the methane production efficiency for accelerting the implementation of anaerobic digestion systems. Accelerators are additives or carriers that improve the efficiency of methane production, such as fermentation aids and activated carbon. In recent years, it has been confirmed that biomethanation is promoted by applying voltage to anaerobic digesters, and the methane concentration in biogas is increased. Although studies have been conducted to confirm the improvement of methane production efficiency and to elucidate the mechanism by using each accelerator and voltage application alone, there has been no research to maximize the efficiency of anaerobic digestion by combining these accelerators and voltage applications. Therefore, this study aimed to maximize the fermentation efficiency of anaerobic digestion by combining each accelerator and voltage application, and to confirm the effect on methane production efficiency in anaerobic digestion system.