National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
Bioresour Technol. 2012 Jun;114:327-33. doi: 10.1016/j.biortech.2012.03.038. Epub 2012 Mar 19.
A 10 L continuous stirred tank reactor (CSTR) system was developed for a two-stage hydrogen fermentation process with an integrated alkaline treatment. The maximum hydrogen production rate reached 218.5 mL/L h at a cornstalk concentration of 30 g/L, and the total hydrogen yield and volumetric hydrogen production rate reached 58.0 mL/g-cornstalk and 0.55-0.57 L/L d, respectively. A 10 L up-flow anaerobic sludge bed (UASB) was used for continuous methane fermentation of the effluents obtained from the two-stage hydrogen fermentation. At the optimal organic loading rate of 15.0 g-COD/Ld, the COD removal efficiency and volumetric biogas production rate reached 83.3% and 4.6L/Ld, respectively. Total methane yield reached 200.9 mL/g-cornstalk in anaerobic fermentation with the effluents and alkaline hydrolysate. As a result, the total energy recovery by coproduction of hydrogen and methane with anaerobic fermentation of cornstalk reached 67.1%.
建立了 10L 连续搅拌釜式反应器（CSTR）系统，用于两级氢发酵过程与集成的碱性处理。在玉米秸秆浓度为 30g/L 时，最大产氢率达到 218.5mL/L h，总产氢量和体积产氢率分别达到 58.0mL/g-秸秆和 0.55-0.57L/L d。使用 10L 上流式厌氧污泥床（UASB）连续甲烷发酵两级氢发酵的出水。在最佳有机负荷率为 15.0g-COD/L d 时，COD 去除率和体积沼气产率分别达到 83.3%和 4.6L/L d。厌氧发酵中用发酵液和碱性水解液生产的总甲烷产量达到 200.9mL/g-秸秆。因此，玉米秸秆的厌氧发酵联产氢气和甲烷的总能量回收率达到 67.1%。
