Department of Civil Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
Department of Civil Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
Bioresour Technol. 2017 Nov;244(Pt 1):650-657. doi: 10.1016/j.biortech.2017.08.021. Epub 2017 Aug 7.
The present study evaluates the feasibility of increased power generation in microbial fuel cells (MFCs) coupled with acid elutriation fermentation. Raw piggery waste (RPW) and acid elutriation effluents (AEE) of piggery waste were used to generate bioelectricity in single-chambered air-cathode MFCs. RPW-fed MFCs exhibited stable performance after 12-days of operation, generating 540mV of open circuit voltage (OCV). RPW fed-MFCs displayed peak potential and maximal power density (PD) of 0.364V and 192mW/m with 980Ω external resistance (R), respectively. AEE-fed MFCs documented 818mV of maximum OCV. Furthermore, the peak potential and PD of 0.329V and 1553mW/m were generated with 100Ω R, respectively. RPW and AEE-fed MFCs exhibited 84% and 93% substrate removal efficiency, respectively. These findings suggest that a two-stage process including acid elutriation reactor asa pre-fermentation and MFCs greatly enhances substrate removal and electricity generation from piggery waste.
本研究评估了在与酸浸析发酵耦合的微生物燃料电池（MFC）中增加发电的可行性。采用原始养猪场废物（RPW）和养猪场废物的酸浸析废水（AEE）在单室空气阴极 MFC 中产生生物电能。RPW 喂养的 MFC 在运行 12 天后表现出稳定的性能，产生 540mV 的开路电压（OCV）。RPW 喂养的 MFC 显示出 0.364V 的峰值电势和 192mW/m 的最大功率密度（PD），外加电阻（R）为 980Ω。AEE 喂养的 MFC 记录了 818mV 的最大 OCV。此外，在 100Ω R 时，峰值电势和 PD 分别为 0.329V 和 1553mW/m。RPW 和 AEE 喂养的 MFC 的基质去除效率分别为 84%和 93%。这些发现表明，包括酸浸析反应器作为预发酵的两级工艺极大地提高了养猪场废物的基质去除和发电效率。
