HABR与CSTR反应器乙醇型发酵产氢效能的比较研究

Comparative Study on Hydrogen Production Efficiency with Ethanol Type Fermentation between HABR and CSTR Reactor

[目的]比较复合式厌氧折流板反应器（HABR）与连续流搅拌槽式反应器（CSTR）乙醇型发酵产氢的运行效果。[方法]以红糖为底物进行两种反应器的乙醇型发酵制氢，监测系统的产氢效能、产能效能、生物量以及COD去除率变化。接种污泥的生物量为15．21g／L，COD浓度分别为4000、6000、8000mg／L各运行30d，进水pH为7～8，水力停留时间为12h。[结果]HABR系统的产氢效能、产能效能、生物量以及COD去除率随COD的提高而上升，在COD为8000mg／L时分别达到了17．54mmol／（h·L）、45．13kJ／（h·L）、38．11g／L．42．87％。CSTR系统在COD为60130mg／L时效果最佳，产氢效能、产能效能、生物量以及COD去除率分别为13．26mmoV（h·L）、33．00kJ／（h·L）、19．91g／L、26．47％。随着COD的进一步提高，运行效果显著下降。[结论]HABR在高有机负荷的条件下乙醇型发酵产氢效果整体优于CSTR，更适用于工业生产。

[ Objective ] The research aimed to study the difference of hydrogen production efficiency between two kinds of reactors, hybrid anaerobic bame reactor （HABR） and continuous flow stirred tank reactor （CSTR）. [ Method] Brown sugar was used as a substrate for ethanol fermentation hydrogen production. And the hydrogen production efflciency, production efficiency, biomass and COD removal rate of the two kinds of reactors was determined, with biomass of inoculation sludge of 15.21 g/L, COD concentration of 4000, 6000, 8000 mg/L for running 30 d respectively, pH value between 7 -8, hydraulic retention time of 12 h. [ Result] The results showed that hydrogen production efficiency, production efficiency, biomass and COD removal rate of HABR system increase with the increase of COD, and reached 17.54 L/h, 45. 13 kJ/（h . L）, 38.11 g/L, 42.87% respectively when COD was 8 000 mg/L. But the best condition of CSTR system occured for COD of 6 000 mg/L, production efficiency, production efficiency, biomass and the COD removal rate were 13.26 mmol/（ h. L）, 33.00 kJ/（ h . L）, 19. 91 g/L, 26. 47% respectively. With the further increase of COD, a significant decrease happened. [ Conclusion] HABR is more suitable for industrial production than CSTR, for its higher hydrogen production efficiency under the condition of high organic loading.