Ferric oxide/carbon nanoparticles enhanced bio-hydrogen production from glucose

Advanced bioH2 and bioCH4 production with cobalt-doped magnetic carbon

“…The highest H 2 yield in this work was 176 mL per g glucose, which was higher than those (83-148 mL per g glucose) previously reported by some researchers 15,17,18 and lower than those (211.55-234.4 mL per g glucose) previously reported by others (Table 5). 15,22,51,52 In addition, the highest increase in experimental CH 4 yield was 24.3%, which was similar to that determined by Lin et al (25%), 53 and lower than those found by Luo et al 27 (70.6%), 56 (45%) ( Table 6). Nevertheless, there were obvious differences in the mixed culture, carbon source, OLR, fermentation temperature, and external carbon and mineral species, which impact biogas production.…”

“…Signicant differences of the SMPs distribution indicate that the anaerobic metabolic pathways are controlled by dominant microorganisms. During the process of microbial community evolution, the dominant anaerobes depend strongly on the mixed culture source, conductive materials and operational parameters, such as the process pH, fermentation temperature, H 2 partial pressure, substrate components and organic loading rate (OLR), as well as conductive composites and their levels22,23…”

Upgrading continuous H2gas recovery from rice straw hydrolysate via fermentation process amended with magnetite nanoparticles

“…However, the maximum HAu/HBc ratio for ABR 2 was higher (3.03 ± 0.31) than that for ABR 1 (1.95 ± 0.29) demonstrating a higher H 2 productivity in the mixed culture supplemented with MNPs. Zhang et al stated that the existence of MNPs led to HAc percentage increase at the soluble metabolites. Since acetate fermentation introduces more NADH that stimulates the conversion of H + to H 2 , as a result, H 2 productivity increases .…”

Optimization and kinetic modeling of an enhanced bio-hydrogen fermentation with the addition of synergistic biochar and nickel nanoparticle

“…Our works are generally comparable to the previous literature reports with a few exceptional higher reported values from previous reported works. 27,48 There are many possible reasons that could attribute to these discrepancies such as different anaerobic microbes used for fermentation, different initial pH, and different synergistic factors added etc.…”