Harnessing wastewater-based microalgae for biohydrogen production

Global energy demands are increasing rapidly, and the pursuit of renewable energy sources has the potential to mitigate climate change. Biohydrogen production is regarded as a highly promising alternative approach for producing hydrogen, owing to its efficiency, renewable nature, and environmental friendliness in comparison to conventional approaches. A substantial amount of attention has been paid to the production of biohydrogen using microalgae as a source of energy that is both sustainable and clean. When it comes to producing biohydrogen from microalgae, there are a few different approaches that can be explored. This study explores various mechanisms for the production of hydrogen gas by microorganisms. It also provides insights on the recent advancements in biohydrogen production. Furthermore, it analyzes the significant challenges confronted during the biohydrogen production process and comprehends future perspectives adopted to enhance hydrogen productivity. This study emphasizes the necessity for commercial biohydrogen production research to reduce the gap between realistic and practical techno-economic viability applications.