本文构建了由生物膜光合产氢反应器和单室无膜空气阴极微生物燃料电池组成的耦合系统,以葡萄糖溶液为底物(模拟废水)对上述系统的能量回收和污水处理持性进行了考察。实验发现,由于耦合系统各组成部分最佳性能时所要求的底物流量不同,使系统的能量回收与废水处理效率随运行工况的变化而体现出不同的特性。当底物流量为10 mL·h~(-1)时,耦合系统能量回收效率最大,为11.2%;而当底物流量为40 mL·h~(-1)时,耦合系统的COD去除效率和功率密度达到最佳,分别为76.4%和5.97×10~5 J·m~(-3)·h~(-1)。
In this study,a coupled system combined with a biophotoreactor and an air cathode single chamber membrane-less MFC was developed and its performance in terms of energy recovery and wastewater treatment was investigated.The results showed that the energy recovery and wastewater treatment efficiency of the system exhibited different trends as the operating conditions varied.This phenomenon can be attributed to the different requirements of the biophotoreactor and MFC for the peak performance.The system exhibited the highest energy recovery rate of 11.2%at the flow rate of 10 mL·h~(-1).The maximum COD removal efficiency and power density of the system were achieved at 76.4%and 5.97×10~5 J·m~(-3)·h~(-1) at the flow rate of 40 mL·h~(-1),respectively.