Biodiesel and Biohydrogen Production from Organic Waste

Biofuels are a new priority to reduce fossil fuel consumption, its contamination and the problem of waste disposal, hence extensive research has been done on biofuels production, effective factors, and optimization of the process. Production of biodiesel and bioethanol from organic waste is possible on an industrial scale. Volatile fatty acids can be produced from organic waste and then turn to biogas, biohydrogen, and biodiesel. In this paper, the production of biodiesel fuel, biohydrogen, volatile fatty acids and its conversion to biodiesel are discussed. Biodiesel production by transesterification in the presence of a catalyst is an appropriate method. Moreover, dark fermentation produces the most amount of biohydrogen and it needs the lowest volume reactor among other biological methods. In this paper, firstly different methods of biodiesel production and effective parameters and then, biohydrogen production and effective parameters have been discussed