Recent Trends in Methane Fermentation Technology

Abstract

There is a critical need for the development and widespread utilization of renewable energy technologies as a sustainable energy source in order to reduce greenhouse gas emissions and achieve the sustainable development goals (SDGs). Anaerobic digestion is an established technology for the treatment of wastes and wastewater to produce biogases such as methane. Methane fermentation technology has been extensively studied over the years, gaining sufficient data to establish it as a proven renewable energy technology. In recent times, advancements in low-cost and advanced next-generation sequencing technologies have led to a deeper understanding of electron transfer mechanisms between microorganisms in methane fermentation processes. This progress is expected to drive further developments in the field of methane fermentation.

　This review focuses on modern applications for methane biotechnology, delving into the innovative aspects of methane fermentation technology Furthermore, the current review also discusses the vertical dry methane fermentation system, affordable small-scale methane fermentation systems, additives to enhance cost-effectiveness of methane fermentation system, using catalysts to improve fermentation efficiency, and the role of voltage application and hydrogen utilization in biomethanation.