کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6450360 | 1415995 | 2017 | 7 صفحه PDF | دانلود رایگان |
- A MFC and a COR reactor were integrated together.
- H2O2 and O2 can both be used as oxidants.
- Over 90% of Congo red was degraded within 72Â h.
- Stabilities of catalysts were evaluated after 100Â days of operation.
- Congo red was degraded into less toxic and more biodegradable organics.
An integrated system of a microbial fuel cell (MFC) and a catalytic oxidation reactor (COR) was developed. In the MFC-COR system, H2O2 generated at the MFC cathode and residual dissolved oxygen could both be used as oxidants for Congo red degradation in the presence of iron phthalocyanine-based catalyst. Over 90% of Congo red was degraded within 72Â h in neutral solution. The open-circuit potential and maximum power density of the MFC reactor were measured as 0.615Â V and 808.3Â mW/m3, respectively. The iron phthalocyanine-based catalyst was still active enough even after 33 cycles of operation. LC-MS analysis showed that Congo red was decomposed into less toxic and more biodegradable organics including malonic acid and maleic acid. This MFC-COR system can be a promising alternative for simultaneously biodegradable and refractory pollutant removal.
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Journal: Biochemical Engineering Journal - Volume 120, 15 April 2017, Pages 118-124