Department of Biosciences, Manipal University Jaipur, Jaipur-303007, Rajasthan, India.
Department of Biosciences, Manipal University Jaipur, Jaipur-303007, Rajasthan, India.
J Environ Manage. 2022 Dec 1;323:116253. doi: 10.1016/j.jenvman.2022.116253. Epub 2022 Sep 18.
Microbial fuel cells have emerged as a technique that can effectively treat wastewater with simultaneous electricity generation. The present study explored the performance of microbial fuel cell for decolorizing and degradation of azo dyes including, remazol brilliant blue (RBB), mordant blue 9 (MB9), acid red1 (AR1), and orange G (OG), while, simultaneously generating electricity. Wheat straw and its hydrolysate was used as a potential substrate in MFC. The hydrolysate was prepared through the degradation of wheat straw by P. floridensis, P. brevispora and P. chrysosporium, while the yeast Pichia fermentans was used as biocatalyst. Dye decolorization was carried out in a fungus-yeast mediated single-chambered MFC batch mode, U-shaped reactor, and bottle reactor in continuous mode. The maximum power density recorded in U shaped continuous reactor was 34.99 mW m on 21st day of the experiment. The best response of dye decolorization was observed in the case of MB9 (96%) with P. floridensis in the continuous electrochemical reactor followed by RBB (90-95%), OG (76%), and AR1 (38%). The toxicity of the treated wastewater was assessed using phytotoxicity analysis.
微生物燃料电池作为一种能够有效处理废水并同时发电的技术已经出现。本研究探讨了微生物燃料电池对偶氮染料（包括活性艳蓝（RBB）、媒染蓝 9（MB9）、酸性红 1（AR1）和橙 G（OG））的脱色和降解性能，同时还能发电。小麦秸秆及其水解物被用作 MFC 的潜在基质。水解物是通过 P. floridensis、P. brevispora 和 P. chrysosporium 降解小麦秸秆制备的，而酵母 Pichia fermentans 则用作生物催化剂。在真菌-酵母介导的单室 MFC 分批模式、U 形连续式反应器和瓶式连续式反应器中进行染料脱色。在实验的第 21 天，U 形连续式反应器中记录到的最大功率密度为 34.99 mW m。在连续电化学反应器中，使用 P. floridensis 对 MB9（96%）的脱色效果最好，其次是 RBB（90-95%）、OG（76%）和 AR1（38%）。使用植物毒性分析评估处理废水的毒性。
