Abstract：
:Biodegradation of recalcitrant organic compounds in microbial fuel cell (MFC) is limited, due to its strong electron affinity and persisted in anaerobic condition. In this study, Pseudomonas monteilii LZU-3 degraded p-nitrophenol (PNP) and generated current at 100 mg L-1 of PNP in anode MFC with the addition of oxygen. The highest PNP degradation was 4, 37.75, and 99.89% in anaerobic, aerobic, and aerated anode of MFC respectively, at 7 h. The maximum voltage generation in aerated anode was 183 mV, which was comparatively higher than aerobic (150 mV) and anaerobic (68 mV). The qRT-PCR results confirmed that the oxygenase genes in strain LZU-3 were up-regulated from 17.51 to 39.39-fold at 1.6-4.5 mg L-1 of oxygen concentrations resulted in PNP degradation in anode MFC. This study demonstrated that supplementation of oxygen into the anode MFC might be a potential approach for biodegradation of recalcitrant compounds and electricity generation.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Khan A,Chen Z,Zhao S,Ni H,Pei Y,Xu R,Ling Z,Salama ES,Liu P,Li Xdoi
10.1016/j.biortech.2019.03.130subject
Has Abstractpub_date
2019-08-01 00:00:00pages
121291eissn
0960-8524issn
1873-2976pii
S0960-8524(19)30504-8journal_volume
285pub_type
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