show Abstracthide AbstractThis project investigates the enhanced bioelectrochemical degradation of thiabendazole (TBZ), a recalcitrant fungicide, using bioelectrochemical systems (BES). Tunisian hypersaline sediments (THS) were used as microbial inoculum to improve TBZ degradation. The sediments underwent biostimulation with increasing TBZ concentrations (0, 10, 100, and 300 mg/kg), which resulted in significant microbial community shifts. The study also uses 16S rRNA sequencing to explore these community changes under different conditions, providing valuable insights into the kinetics and efficiency of TBZ degradation in extreme environments. The research aims to enhance BES performance for treating TBZ-contaminated wastewater, offering a potential solution for difficult-to-treat industrial wastewater.