Production of biofuels from micro ALGAE and green wastes through Anaerobic Digestion

Abstract

The basic aim of this work was to explore the possibilities of producing the bio-fuels by green waste recycling from the available, inexpensive & echo-friendly resources. The state of the art recovery of green energy from green waste & algal biomass was explored with less energy intensive processes. Many different methods are in use to produce bio fuels; however this new technique stands out among them due to its choice of raw materials and processing. Mixing of residue algal biomass after extraction of oil & green waste is suggested to prepare the feed for further extraction. The lipid extractor and Anaerobic Digester (AD) form the heart of this process. Bio-ethanol, bio-diesel, omega 3 and astaxanthin will be extracted from micro-algae and while the biogas will mainly result from AD. Bio-ethanol can be used in vehicle transportation, bio-diesel can be blended with fossil diesel in a specific ratio to produce B20. The omega 3 is an important supplement for human body metabolism while astaxanthin is an antioxidant which is used on the skin to protect it from sunburn. Complex chemical reactions take place in AD, resulting in the production of biogas that contains 50-60% methane and 30-40% CO 2 with traces of H 2 S, H 2 and NH 3 .