This mini review focuses on the current developments in the field of dark fermentation
technologies using wastewater as carbon and nutrient source in batch reactors. Besides,
the major microbiota (pure, enriched mixed, co and mixed cultures) involved in the
process have been emphasized. Additionally, problems associated with the lower production
performances and the overcoming strategies applied to enhance the production rate (HPR)
and yield (HY) bybio-augmentation, immobilization, enrichment technique and nano particles
(NP) addition were also discussed. This mini review provides more insights about the
recent developments in the dark fermentative hydrogen production (DHFP) process and their
advantages in a brief manner. The perspective towards the development of sustainable society
by using bioH2 technology is enlightened.
Keywords: Wastewater, hydrogen, production rate, fermentation, hydrogen yield.
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