AI Article Synopsis
- Scientists created a special system called a microbial fuel cell with a built wetland (CW-MFC) to help remove certain antibiotics from water.
- This system was really good at getting rid of more than 90% of one antibiotic and also decreased methane gas, which can be bad for the environment.
- They found out that adding a special material, manganese ore, helped reduce methane emissions even more, and some bacteria changed in the process, making the system work better.
Article Abstract
In this study, a microbial fuel cell coupled with constructed wetland (CW-MFC) was built to demonstrate that integration of MFC can enhance antibiotics (sulfadiazine (SDZ) and ciprofloxacin (CIP)) removal in CWs and control CH emissions. Better COD and antibiotics removal performance was obtained in CW-MFC. Notably, both reactors can remove more than 90.00% of CIP. A decline in methane fluxes (by 15.29%) was also observed in CW-MFC compared with CW. The presence of Acorus tatarinowii had no obvious effect on antibiotics removal but the application of manganese ore substrate reduced methane emissions. Further study showed that Proteobacteria was enriched on the Mn substrate anode and the relative abundance of Methanothrix was declined. The results suggested that suppression of methanogenesis may be contributed to a low methane flux in CW-MFC. This study will facilitate the application of CW-MFC to treat antibiotics wastewater and control the ecological risks of greenhouse gas emissions.
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| http://dx.doi.org/10.1016/j.biortech.2020.124285 | DOI Listing |
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