Current status, opportunities and challenges in anaerobic digestion in Indian context: An overview

Anaerobic digestion (AD) technology has piqued scientists’ interest in light of the growing demand for renewable energy and environmental preservation. This paper discusses the analysis of national biogas producing capacity, energy demand, and methods for meeting that demand. Also, public health and environmental issue, biogas technology and their utilization, current national scenario, and future in the biogas field have been discussed. The Government of India (GOI) has been providing subsidies or financial support through various programs. They support the rural area for generating biogas and also announced the Sustainable Alternative Towards Affordable Transportation (SATAT) initiative for the generation of compressed biogas (CBG) for the installation of 5000 plants up to 2023-24. These plants are expected to produce 15 million metric tonnes (MMT) of CBG per annum, which is about 40% of the current compressed natural gas (CNG) consumption of 44 MMT per annum in the region. © 2021 Elsevier Ltd