Abstract :

In the global market, the demand for energy is increasing along with the increasing population. To meet the demands, the source of energy plays an important role in the development of a nation’s economic growth and development. But in the current situation due to depletion of fossil fuel sources, renewable energy acts as an alternate energy source with their own advantages and limitations. Even energy production technologies from various sources have to be cost-effective, sustainable, and efficient. Many studies emphasized hydrogen as the better feasible and alternative energy source produced even from biomass of food, agricultural wastes, fossil fuels, and even wastewater with a wide variety of applications. Hence this review mainly focused on hydrogen production by biological methods. Along with its proper storage and handling which plays an important role in acting as an efficient energy source for hydrogen fuel cells.  Among biological methods, processes like Photobiological, Fermentative, and Anaerobic digestion were used for the generation of Hydrogen obtained by recycling food waste, and agricultural wastes. Hence the researchers are aiming at various strategies to increase the yield of Biohydrogen, to reach the demands of energy across the globe.

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Keywords :

Anaerobic digestion, Biohydrogen, Biomass, Fermentation, Renewable Energy

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