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The Influence of Incorporating Microbial Fuel Cells on Greenhouse Gas Emissions from Constructed Wetlands by Wang, Xiaoou; Tian, Yimei; Liu, Hong; Zhao, Xinhua; Peng, Sen is a Environmental Science article available to read on EtoBox.

What is The Influence of Incorporating Microbial Fuel Cells on Greenhouse Gas Emissions from Constructed Wetlands about?

Microbial fuel cells (MFCs) were incorporated into constructed wetlands (CWs) in recent years aiming to enhance the wastewater treatment of CWs while simultaneously produce electricity. However, currently no information is available about the greenhouse gas (GHG) emissions from integrated CW-MFC systems during wastewater treatment. Therefore, this study investigated the influence of incorporating MFCs on GHG (especially CH and NO) emissions from CWs under different external resistances, influent organic loadings and seasons. Results showed that incorporating the MFC significantly reduced the GHG emissions (by 5.9%-32.4% CO equivalents) from CWs by reducing 17.9%-36.9% CH and 7.2%-38.7% NO emissions. The CH and NO emissions from CW-MFCs significantly increased with increasing external resistance (above 500 Ω), while the CO emission showed the opposite trend. However, the CH and NO emissions at external resistances below 500 Ω did not differ significantly. There was a significant positive correlation between the CO and CH emissions and influent organic loadings in CW-MFCs, but a significant negative correlation between the NO emission and influent organic loadings. Influent chemical

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Author

Wang, Xiaoou; Tian, Yimei; Liu, Hong; Zhao, Xinhua; Peng, Sen

Publisher

Elsevier Science; Elsevier ; Elsevier BV; Publons (ISSN 0048-9697)

Published

2018

Language

EN

Field

Environmental Science (Physical Sciences)