Major in Social Infrastructure System Science, Ibaraki University, Hitachi, Ibaraki, 316-8511, Japan.
Department of Civil, Architectural and Environmental Engineering, Ibaraki University, Hitachi, Ibaraki, 316-8511, Japan.
Appl Biochem Biotechnol. 2019 Sep;189(1):217-232. doi: 10.1007/s12010-019-02994-3. Epub 2019 Apr 10.
This study firstly introduced a silicone rubber membrane (SRM) into microbial fuel cell (MFC) for passive oxygen supply to simultaneously remove phenol and nitrogen from synthetic coke-oven wastewater diluted with seawater. Passive oxygen transport with biofilm on the membrane was improved by ~ 18-fold in comparison with the one without a biofilm. In addition, although the oxygen supply was passive, nitrification accounted for 34% of those aeration conditions. It was also found that silicone rubber membrane can control NO-N and/or NO-N production. A dual-chamber MFC treating the synthetic coke-oven wastewater achieved a maximum power density of 54 mW m with a coulombic efficiency of 2.7%. We conclude that silicone rubber membrane is effective for sustainable coke-oven wastewater treatment in MFCs.
本研究首先将硅橡胶膜（SRM）引入微生物燃料电池（MFC）中，以被动供氧的方式同时去除经海水稀释的合成焦炉废水中的酚和氮。与无生物膜的情况相比，膜上生物膜的被动氧气传输提高了约 18 倍。此外，尽管供氧是被动的，但硝化作用占曝气条件的 34%。研究还发现，硅橡胶膜可以控制 NO-N 和/或 NO-N 的产生。处理合成焦炉废水的双室 MFC 实现了最大功率密度 54 mW m-2，库仑效率为 2.7%。我们得出结论，硅橡胶膜对于 MFC 中可持续处理焦炉废水是有效的。
