Study on biogas production by anaerobic digestion of garden-waste

► Microbes found in cow-dung were not able to grow on garden-waste for methane production. ► Microbes present in paddy-field soil were able to grow on garden-waste. ► Microbes present in mine water were capable to utilize garden-waste as substrate to produce biogas. ► Microbes present in termite guts were able to digest garden-waste an-aerobically. As petroleum and good quality coal reserves in India are depleting, hence alternative renewable source of energy is the demand of the time. At the same time management of huge quantities of garbage produced in India is also a serious problem. Therefore, anaerobic digestion of garden-waste was tried using some indigenous natural sources to find potential microbes for the gasification of garden-waste. For this study four natural sources i.e. cow-dung, paddy field soil, mine water and termites were used. From the study it is inferred that microbes present in paddy field soil when enriched on garden-waste gave best results out of four natural sources.