Sun Caiyu, Hao Ping, Qin Bida, Wang Bing, Di Xueying, Li Yongfeng
Center for Ecological Research, Northeast Forestry University, Harbin 150040, China.
Management College, Ocean University of China, QingDao 266000, China.
Water Sci Technol. 2016;73(1):130-6. doi: 10.2166/wst.2015.471.
An upflow anaerobic sludge bed (UASB) system with sludge immobilized on granular activated carbon was developed for fermentative hydrogen production continuously from herbal medicine wastewater at various organic loading rates (8-40 g chemical oxygen demand (COD) L(-1) d(-1)). The maximum hydrogen production rate reached 10.0 (±0.17) mmol L(-1) hr(-1) at organic loading rate of 24 g COD L(-1) d(-1), which was 19.9% higher than that of suspended sludge system. The effluents of hydrogen fermentation were used for continuous methane production in the subsequent UASB system. At hydraulic retention time of 15 h, the maximum methane production rate of 5.49 (±0.03) mmol L(-1) hr(-1) was obtained. The total energy recovery rate by co-production of hydrogen and methane was evaluated to be 7.26 kJ L(-1) hr(-1).
开发了一种上流式厌氧污泥床（UASB）系统，该系统的污泥固定在颗粒活性炭上，用于在不同有机负荷率（8 - 40 g化学需氧量（COD）L⁻¹ d⁻¹）下从中药废水中连续发酵产氢。在有机负荷率为24 g COD L⁻¹ d⁻¹时，最大产氢速率达到10.0（±0.17）mmol L⁻¹ hr⁻¹，比悬浮污泥系统高19.9%。氢发酵的出水用于后续UASB系统中的连续甲烷生产。在水力停留时间为15 h时，获得了最大甲烷产率5.49（±0.03）mmol L⁻¹ hr⁻¹。通过联产氢气和甲烷的总能量回收率评估为7.26 kJ L⁻¹ hr⁻¹。
