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- Title
Impact of Condition Variations on Bioelectrochemical System Performance: An Experimental Investigation of Sulfamethoxazole Degradation.
- Authors
Xue, Qun; Chen, Zhihui; Xie, Wenjing; Zhang, Shuke; Jiang, Jie; Sun, Guoxin
- Abstract
Bioelectrochemical systems (BESs) are an innovative technology for the efficient degradation of antibiotics. Shewanella oneidensis (S. oneidensis) MR-1 plays a pivotal role in degrading sulfamethoxazole (SMX) in BESs. Our study investigated the effect of BES conditions on SMX degradation, focusing on microbial activity. The results revealed that BESs operating with a 0.05 M electrolyte concentration and 2 mA/cm2 current density outperformed electrolysis cells (ECs). Additionally, higher electrolyte concentrations and elevated current density reduced SMX degradation efficiency. The presence of nutrients had minimal effect on the growth of S. oneidensis MR-1 in BESs; it indicates that S. oneidensis MR-1 can degrade SMX without nutrients in a short period of time. We also highlighted the significance of mass transfer between the cathode and anode. Limiting mass transfer at a 10 cm electrode distance enhanced S. oneidensis MR-1 activity and BES performance. In summary, this study reveals the complex interaction of factors affecting the efficiency of BES degradation of antibiotics and provides support for environmental pollution control.
- Subjects
SHEWANELLA oneidensis; SULFAMETHOXAZOLE; TECHNOLOGICAL innovations; MASS transfer; POLLUTION
- Publication
Molecules, 2024, Vol 29, Issue 10, p2276
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules29102276