Influence of NaCl on hydrogen production from glucose by anaerobic cultures

In this study, batch experiments were conducted to investigate the inhibitory effects of NaCl on H2 production from glucose by anaerobic mixed cultures. Experimental results demonstrate that NaCl concentration had significant inhibitory effects on glucose degradation, cumulative H2 production, specific H2 production rate, H2 yield and the distribution of aqueous products. The specific H2 production rate had a negative correlation with NaCl concentrations. The NaCl concentrations, at which the specific H2 production rate and H2 yield were reduced by 50%, were estimated as 209 mM and 443 mM, respectively.