RESUMO
Industrial revolution in agro based industries with improved technologies, machineries, etc. has resulted in the ease of operation, availability of increased number of value added products in the field of agriculture, effective labour management, etc. Agro industries are one of the major contributors for environmental pollution and accounts for about 10-15% for pollution. As the wastes generated from agro-industries are of biological origin, they can be effectively reused; if their alternate uses are explored. As these industrial effluents contain lignocellulose, cellulose, and hemicellulose, which are rich sources of lignin, and cellulose, it is possible to use these materials as a substrate to produce bioethanol. Our current review focuses on bioethanol production from different industrial effluents and Bio-microbial based fermentation.