The Azo Dye Degradation and Differences Between the Two Anodes on the Microbial Community in a Double-Anode Microbial Fuel Cell
The Azo Dye Degradation and Differences Between the Two Anodes on the Microbial Community in a Double-Anode Microbial Fuel Cell
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双阳极微生物燃料电池中偶氮染料的降解及两种阳极微生物群落的差异
DOI：
10.1007/s11270-019-4325-4
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发表时间：
2019-11
期刊：
影响因子：
--
通讯作者：
Li Xianning
中科院分区：
文献类型：
--
作者：
Long Xizi;Cao Xian;Liu Shentan;Nishimura Osamu;Li Xianning
阳极结构决定了微生物燃料电池（MFC）的发电性能和污染物去除性能。在本研究中，沿着上流式MFC构建双阳极，以减轻难降解有机偶氮染料活性艳红X-3B的抑制，并提高功率输出。结果表明，高浓度的X-3B抑制了MFC的发电。最大功率密度从0.413 W/m3下降到0.161 W/m3，内阻从448上升到698 Ω。然而，双阳极削弱了X-3B对当前一代的抑制。与单阳极相比，MFC电流衰减从48%下降到40%。同时，当X-3B浓度为1000 mg/L时，双阳极MFC对X-3B的去除率比单阳极条件下提高19.81%。降解途径分析表明，芳香胺在MFC中依次生成并进一步氧化。此外，对上下阳极的微生物群落进行了分析，发现下阳极的微生物更倾向于降解污染物，而上阳极的微生物更倾向于发电。这种双阳极结构具有大浓度范围去除偶氮染料的潜力，在实际纺织废水中具有广泛的应用前景。
The anode configuration determined the performance of power generation and contaminant removal in microbial fuel cell (MFC). In this study, double anodes were constructed along an up-flow MFC for mitigating the suppression of refractory organic azo dye Reactive Brilliant Red X-3B and increasing the power output. Results revealed that high concentration of X-3B suppressed the power generation of MFC. The maximum power density decreased from 0.413 to 0.161 W/m3, and the inner resistance rose from 448 to 698 Ω. However, double anodes weakened the suppression of X-3B to the current generation. Compared with single anode, the attenuation of MFC current decreased from 48 to 40%. Meanwhile, the X-3B removal efficiency in double-anode MFC was 19.81% higher compared with a single-anode condition when the X-3B was 1000 mg/L. The degradation pathway analysis indicated that aromatic amines formation and further oxidation were achieved sequentially in the MFC. Furthermore, microbial communities in the lower and upper anodes were analyzed, revealing that the microorganisms in the lower anode were more inclined to degrade the pollutant, whereas those in the upper anode were more inclined to generate electricity. This double-anode structure showed the potential for large concentration range of azo dye removal and the current recovery in real textile wastewater.
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影响因子：
3.8
作者：
Ting Xie;Zhaoqian Jing;Jing Hu;Pengyi Yuan;L. Yali;Shiwei Cao
通讯作者：
Ting Xie;Zhaoqian Jing;Jing Hu;Pengyi Yuan;L. Yali;Shiwei Cao
影响因子：
11.4
作者：
Sarkar, Poulomi;Roy, Ajoy;Sar, Pinaki
通讯作者：
Sar, Pinaki
DOI：
10.1016/j.cep.2018.04.006
发表时间：
2018-06-01
影响因子：
4.3
作者：
Sepehri, Arsalan;Sarrafzadeh, Mohammad-Hossein
通讯作者：
Sarrafzadeh, Mohammad-Hossein
影响因子：
4.5
作者：
Xiwang Zhang;Guoting Li;Yizhong Wang
通讯作者：
Xiwang Zhang;Guoting Li;Yizhong Wang
影响因子：
5
作者：
Freguia, Stefano;Masuda, Masaki;Kano, Kenji
通讯作者：
Kano, Kenji