Chemical and Environmental-Bioprocess Engineering Department, Natural Resources Institute (IRENA), University of Leon, Avda. de Portugal 41, Leon 24009, Spain.
Chemical and Environmental-Bioprocess Engineering Department, Natural Resources Institute (IRENA), University of Leon, Avda. de Portugal 41, Leon 24009, Spain.
Bioresour Technol. 2013 Oct;146:63-69. doi: 10.1016/j.biortech.2013.07.020. Epub 2013 Jul 11.
The influence of applied voltage and hydraulic retention time on the performance of a semi-pilot modular tubular wastewater-fed microbial electrolysis cell (MEC) with high scalability was investigated. A chemical oxygen demand (COD) removal efficiency of 80%, as well as an energy consumption of 0.3-1.1 Wh g-COD(-1) removed, were achieved. Hydrogen production was limited by the reduced amounts of organic matter fed into the reactor, the poor performance of the cathode, and COD consuming by non electrogenic microorganisms. The presence of COD consuming microorganism that do not contribute to electrogenic metabolism severely affected the MEC performance.
考察了外加电压和水力停留时间对具有高可扩展性的半中试模块化管式废水进料微生物电解池（MEC）性能的影响。实现了化学需氧量（COD）去除效率为 80%，能耗为 0.3-1.1 Wh g-COD(-1)。由于进入反应器的有机物减少、阴极性能不佳以及非产电微生物消耗 COD，导致产氢受到限制。不参与产电代谢的 COD 消耗微生物的存在严重影响了 MEC 的性能。
