School of Energy and Environment, Southeast University, Nanjing 210096, China.
School of Energy and Environment, Southeast University, Nanjing 210096, China.
Bioresour Technol. 2017 Mar;227:273-278. doi: 10.1016/j.biortech.2016.12.043. Epub 2016 Dec 16.
In this study, a microbial fuel cell (MFC)-biofilm electrode reactor (BER) coupled system was established for degradation of the azo dye Reactive Brilliant Red X-3B. In this system, electrical energy generated by the MFC degrades the azo dye in the BER without the need for an external power supply, and the effluent from the BER was used as the inflow for the MFC, with further degradation. The results indicated that the X-3B removal efficiency was 29.87% higher using this coupled system than in a control group. Moreover, a method was developed to prevent voltage reversal in stacked MFCs. Current was the key factor influencing removal efficiency in the BER. The X-3B degradation pathway and the types and transfer processes of intermediate products were further explored in our system coupled with gas chromatography-mass spectrometry.
在这项研究中，建立了一种微生物燃料电池（MFC）-生物膜电极反应器（BER）耦合系统，用于降解偶氮染料活性艳红 X-3B。在该系统中，MFC 产生的电能无需外部电源即可降解 BER 中的偶氮染料，并且 BER 的流出物被用作 MFC 的进水，以进一步降解。结果表明，与对照组相比，该耦合系统中 X-3B 的去除效率提高了 29.87%。此外，还开发了一种防止堆叠 MFC 中电压反转的方法。电流是 BER 中影响去除效率的关键因素。我们的系统与气相色谱-质谱联用，进一步探索了 X-3B 的降解途径以及中间产物的类型和转移过程。
