Liu Ruina, Lin Youwei, Ye Xiaodong, Hu Jinzhao, Xu Gongdi, Li Yongfeng
School of Forestry, Northeast Forestry University Harbin 150040 Heilongjiang China.
School of Ecology and Environment, Hainan Tropical Ocean University SanYa 572000 Hainan China
RSC Adv. 2021 Oct 15;11(53):33714-33722. doi: 10.1039/d1ra02522h. eCollection 2021 Oct 8.
A novel anaerobic maifanite-immobilized sludge reactor (AMSR) was employed to investigate the feasibility and performance of continuous hydrogen production for the treatment of pharmaceutical intermediate wastewater (PIW) at different organic loading rates (OLR) (from 12 to 96 g COD L d) according to changes in the hydraulic retention time (HRT). A reactor without maifanite was also employed as a control. The results indicate that maifanite accelerates granular sludge formation and the AMSR presents more efficient and stable performance than the control in terms of the hydrogen production rate. In the AMSR, the highest hydrogen production rate of 11.2 ± 0.4 mmol L h was achieved at an optimum OLR of 72 g COD L d. The main metabolic route for hydrogen production was ethanol-type fermentation, which was reflected in the relative abundance of , which was dominant for all of the OLRs. The maximum energy conversion efficiency in the dual production of hydrogen and ethanol was determined to be 24.5 kJ L h at an OLR of 72 g COD L d.
采用新型厌氧麦饭石固定化污泥反应器（AMSR），根据水力停留时间（HRT）的变化，研究在不同有机负荷率（OLR）（从12至96 g COD/L·d）下连续制氢处理制药中间体废水（PIW）的可行性和性能。还采用了一个没有麦饭石的反应器作为对照。结果表明，麦饭石促进颗粒污泥的形成，并且在产氢速率方面，AMSR比对照表现出更高效和稳定的性能。在AMSR中，在最佳OLR为72 g COD/L·d时，实现了最高产氢速率11.2±0.4 mmol/L·h。产氢的主要代谢途径是乙醇型发酵，这体现在相对丰度上，在所有OLR下均占主导地位。在OLR为72 g COD/L·d时，氢气和乙醇联产的最大能量转换效率确定为24.5 kJ/L·h。
