Title : Development of green energy technologies: An alternative approach to promote green energy and waste management
Abstract:
Currently, a number of global challenges are associated with the extensive use of non-renewable fossil fuels. The main challenges are global warming, energy crisis, environmental pollution, instability of economy, biodiversity, dependence on other countries and many others. These challenges stimulated us to develop an alternative and green energy technologies. Therefore, a number of approaches have been developed to mitigate these challenges. Biohydrogen was produced from wastewater and converted to electrical energy by the development of microbial fuel cells (MFCs). Bioethanol have been produced from bagasse and waste fruits that was used to power the gasoline engine. A detailed study of the emission of gases was conducted during the combustion of bioethanol-gasoline blends and compare with the combustion of gasoline. In addition, biodiesel was produced by the transesterification of oils obtained from different feedstocks including castor oil, waste fish oil, seaweeds oil and waste cooking oil. Various heterogeneous catalysts were produced from waste materials like waste marble, egg shell, mollusca shell and waste catalysts from metallurgical industries and used for the conversion of oil to biodiesel. These reactions were conducted by renewable and green concentrated solar thermal (CST) energy. Furthermore, different waste materials like human hairs, animal hairs, waste fish, coconut shell, waste diapers and e-wastes were converted to synthetic fuels by pyrolysis. These renewable and green approaches will be helpful to overcome the current demerits of fossil fuels.
Keywords: Bioelectricity, bioethanol, biodiesel, synthetic fuels, solar energy.
