Enhancement of the Bio-hydrogen Production from Complex Food Wastewater using the Hematite and Nickel Oxide Nanoparticles

Abstract

Nanoparticles are useful to improve the mass transfer rate. In this article, we have explored the potential of the nickel and hematite particles for the bio-hydrogen production increment. Batch fermentation test is used in the experimentations, and distillery wastewater is used as a feed for the process. During the batch fermentation test, the complex distillery wastewater served as a substrate. The current study's findings strongly suggest that adding Fe₂O₃ and NiO nanoparticles together improve hydrogen recovery from complex distillery effluent by 1.2–4.5 orders of magnitude as compared to use only nanoparticles. Ferredoxin, hydrogenase enzymes, oxidoreductase and ferredoxin are important for the increase in hydrogen production.