The performance of the modified upflow anaerobic sludge blanket (MUASB) reactor–static granular bed reactor (SGBR) series was evaluated during the restart after a starvation period of 6 months. The steady-state chemical oxygen demand (COD) removal of the reactor series obtained during the restart with copper was 98 ± 1.96% with the corresponding biogas production and copper removal of 0.218-m³/kg COD_digested and 81.5%, respectively. Even though the biogas production of the reactor series with copper decreased because of the inhibitory effect of the accumulated copper on the methanogens, the reactor series was maintained stable throughout the operation with the effluent characteristics well within the discharge standards. The resumption of feed after starvation was sufficient for the recovery of the biomass from a dormant to an active state when operated with and without copper. The restart of the reactor series with copper was achieved in 35 days, indicating robustness and sustainability even after starvation.

中文翻译：

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铜对新型组合式两级厌氧消化池重启影响的评估

改进的上流式厌氧污泥床 (MUASB) 反应器 - 静态颗粒床反应器 (SGBR) 系列的性能在 6 个月的饥饿期后重新启动期间进行了评估。在用铜重启期间获得的反应器系列的稳态化学需氧量(COD)去除率为98±1.96%，相应的沼气产量和铜去除率分别为0.218-m ³ /kg COD_消化和81.5%。尽管由于铜的积累对产甲烷菌的抑制作用，含铜反应器系列的沼气产量有所下降，但该系列反应器在整个运行过程中保持稳定，出水特性完全符合排放标准。当使用或不使用铜操作时，饥饿后恢复进料足以使生物质从休眠状态恢复到活性状态。铜反应堆系列在 35 天内实现了重启，这表明即使在饥饿之后也具有稳健性和可持续性。