Bio-hydrogen Production from Beer Wastewater in an Internal Circulation(IC) Reactor

摘要

An internal circulation (IC) using hydrogen-producing anaerobic granular sludge as seed sludge and beerwastewater as substrate was employed to evaluate the effect of hydrogen production and the performance of reactor. Runningat the temperature of 35±1 °C, the pH value of influent controlled is 5.5 and organic loading rate (OLR) from 30 kgCOD/(m3●d) to 42 kg COD/(m3●d), the IC reactor presents a high hydrogen production ability as the hydrogen productionrate (HPR) maximized at 6.0-6.83 m3/(m3●d). Hydrogen volume content was estimated to be 42-46% of the total biogasand the biogas was free of methane throughout the study. COD removal efficiency could reach 20-30% and the dissolvedfermentation products were predominated by ethanol with the concentration of 900-950 mg/L, which accounts for 45%-56% of the total liquid products. These values may imply that the IC reactor is a kind of feasible fermentative hydrogenproduction equipment.