School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, PR China.
School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, PR China; Hubei Key Laboratory of Fuel Cell, Wuhan University of Technology, Wuhan 430070, PR China.
Bioresour Technol. 2019 Nov;291:121888. doi: 10.1016/j.biortech.2019.121888. Epub 2019 Jul 25.
A coupled microbial fuel cell (MFC) system, consisting of a nitrifying sulfide removal MFC and a denitrifying sulfide removal MFC, was assembled to simultaneously treat ammonium and sulfide in wastewater. It provided a promising approach to recover electricity from wastewater containing sulfide and ammonium. Considering both substrate removal and electricity generation performance, the desirable feeding S/N molar ratio was deemed as 3 and the optimal temperature was found to be 30 °C. Under this condition, the coupled MFC achieved a sum coulomb production of 554.8 C/d, a total nitrogen removal efficiency of 58.7 ± 1.3% and a sulfur production percent of 27.4 ± 0.4-33.3 ± 0.9%. The introduction of nitrifiers and electroactive oxic microbes from the oxic-cathode chamber into the anoxic-cathode chamber favored nitrogen removal.
采用由硝化型硫去除微生物燃料电池（MFC）和反硝化型硫去除 MFC 组成的耦合微生物燃料电池系统，同时处理废水中的氨氮和硫化物。为从含硫和氨氮的废水中回收电能提供了一种很有前途的方法。考虑到基质去除和发电性能，适宜的进料 S/N 摩尔比被认为是 3，最佳温度被发现为 30°C。在此条件下，耦合 MFC 获得了 554.8 C/d 的总库仑产量、58.7 ± 1.3%的总氮去除效率和 27.4 ± 0.4-33.3 ± 0.9%的硫生成率。好氧阴极室中的硝化菌和电活性需氧微生物被引入缺氧阴极室，有利于氮的去除。
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