ABSTRACT
Each biomass resources such as wood, dung, vegetable wastes, agro residues can be treated in many different ways to provide a wide spectrum of useful products. Biomass can be dried and burnt to provide heat or converted into low calorific value gas by pyrolysis process. Thermal conversion processes use heat to convert biomass into solid, liquid and gaseous products depending on the technology adopted. The basic thermochemical technologies are combustion, pyrolysis and gasification which produce different end products. The aerobic method of conversion of biomass is composting. Composting is a bioprocess, in which diverse and mixed group of micro-organisms breakdown organic materials and transform in to humus like substances in aerobic conditions. Biodiesel is a chemical method of conversion of oil into diesel. Biodiesel is a variety of ester-based oxygenated fuels derived from natural, renewable biological sources such as vegetable oils through transesterification process.
