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From antibiotic-contaminated wastewater to renewable energy: 358-day evolution of microbial fuel cells in doxycycline hydrochloride treatment and power generation

Author

Listed:
  • Chen, Ruyan
  • Liu, Xiaodan
  • Zhang, Xiaoman
  • Zhang, Kaiyuan
  • Dong, Shuying
  • Sun, Jianhui
  • Fan, Maohong

Abstract

This study demonstrates the long-term resilience and adaptation of microbial fuel cells (MFCs) in treating antibiotic-contaminated wastewater. Over 358 days of operation, MFCs exposed to 7 mg L−1 doxycycline hydrochloride (Dox) initially exhibited inhibited power output, but system performance recovered significantly after microbial acclimation. Anode resistance decreased by 42.11%, and the microbial community shifted toward Dox-degrading genera such as Dysgonomonas and Rhodopseudomonas and Aquamicrobium. Ultimately, Dox removal efficiency reached 99.13%, with a 75% reduction in effluent antibacterial activity. These results confirm that MFCs can provide a self-sustaining, energy-recovering solution for antibiotic wastewater treatment, integrating effective pollutant removal with renewable electricity generation.

Suggested Citation

  • Chen, Ruyan & Liu, Xiaodan & Zhang, Xiaoman & Zhang, Kaiyuan & Dong, Shuying & Sun, Jianhui & Fan, Maohong, 2026. "From antibiotic-contaminated wastewater to renewable energy: 358-day evolution of microbial fuel cells in doxycycline hydrochloride treatment and power generation," Renewable Energy, Elsevier, vol. 266(C).
    • Handle: RePEc:eee:renene:v:266:y:2026:i:c:s0960148126005161
    DOI: 10.1016/j.renene.2026.125691
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