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Electrochemical Performance and Response of Bacterial Community During Phenanthrene Degradation in Single-chamber Air-cathode Microbial Fuel Cells by Tao Hua; Haonan Wang; Shengnan Li; Peng Chen; Fengxiang Li; Wei Wang is a Environmental Science article available to read on EtoBox.

What is Electrochemical Performance and Response of Bacterial Community During Phenanthrene Degradation in Single-chamber Air-cathode Microbial Fuel Cells about?

Polycyclic aromatic hydrocarbons have attracted considerable attention for their carcinogenic, teratogenic, and mutagenic properties in humans. Phenanthrene is one of the most abundant polycyclic aromatic hydrocarbons in aquatic environments. In this study, different concentrations of phenanthrene were degraded by single-chamber air-cathode microbial fuel cells. The electrochemical parameter of microbial fuel cells and biofilm changes on the anode were observed. The results showed that the addition of phenanthrene reduced the power output of the microbial fuel cell which affected the process of microbial electricity generation. Meanwhile, microorganisms destroyed the original structure of phenanthrene through anaerobic metabolism, and achieved good average degradation of 94.9-98.4%. Observation of the anodic biofilm found that the microbes had tolerance to phenanthrene and the biofilm exhibited to be well-constructed. Bacterial community distribution showed a decrease in the relative abundance of Acidovorax and Aquamicrobium, whereas the relative content of the main electroactive organism, Geobacter, increased by a factor of three. The results show that it is feasible for microbial

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Author

Tao Hua; Haonan Wang; Shengnan Li; Peng Chen; Fengxiang Li; Wei Wang

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)