Enhanced bioelectrochemical degradation of Thiabendazole using biostimulated Tunisian hypersaline sediments: kinetics, efficiency, and microbial community shifts DOI Creative Commons
Nesrine Saidi, Benjamin Erable,

Luc Etchevery

и другие.

Frontiers in Microbiology, Год журнала: 2025, Номер 15

Опубликована: Янв. 6, 2025

Thiabendazole (TBZ), a recalcitrant fungicide, is frequently applied in postharvest fruit treatment and generates significant volumes of industrial wastewater (WW) that conventional plants cannot handle. This explores bioelectrochemical system (BES) for TBZ degradation using Tunisian hypersaline sediments (THSs) as inoculum. Four sets BES, along with biological controls, were tested THS subjected to different levels biostimulation. Sediments underwent one, two, or three biostimulation phases increasing concentrations (0, 10, 100, 300 mg kg-1). Potentiostatic control was polarized at 0.1 V vs. saturated calomel reference electrode (SCE), carbon felt working (72 cm2 L-1) maintained 25°C. While current production very low, biostimulated 100 kg-1 kg produced the highest density (3.2 mA m-2), 5-fold increase over untreated (0.6 m-2). GC-FID analysis showed >99% all reactors. The half-elimination time from 27 days treatments 19 BES further 6 following Bacterial revealed substantial microbial community shift after biostimulation, reduction Bacillota (-64%) an Proteobacteria (+62%), dominated by Pseudomonas (45%) Marinobacter (16%). These findings provide insight into selective potential cycles enhance composition improve performance treatment.

Язык: Английский

Enhanced bioelectrochemical degradation of Thiabendazole using biostimulated Tunisian hypersaline sediments: kinetics, efficiency, and microbial community shifts DOI Creative Commons
Nesrine Saidi, Benjamin Erable,

Luc Etchevery

и другие.

Frontiers in Microbiology, Год журнала: 2025, Номер 15

Опубликована: Янв. 6, 2025

Thiabendazole (TBZ), a recalcitrant fungicide, is frequently applied in postharvest fruit treatment and generates significant volumes of industrial wastewater (WW) that conventional plants cannot handle. This explores bioelectrochemical system (BES) for TBZ degradation using Tunisian hypersaline sediments (THSs) as inoculum. Four sets BES, along with biological controls, were tested THS subjected to different levels biostimulation. Sediments underwent one, two, or three biostimulation phases increasing concentrations (0, 10, 100, 300 mg kg-1). Potentiostatic control was polarized at 0.1 V vs. saturated calomel reference electrode (SCE), carbon felt working (72 cm2 L-1) maintained 25°C. While current production very low, biostimulated 100 kg-1 kg produced the highest density (3.2 mA m-2), 5-fold increase over untreated (0.6 m-2). GC-FID analysis showed >99% all reactors. The half-elimination time from 27 days treatments 19 BES further 6 following Bacterial revealed substantial microbial community shift after biostimulation, reduction Bacillota (-64%) an Proteobacteria (+62%), dominated by Pseudomonas (45%) Marinobacter (16%). These findings provide insight into selective potential cycles enhance composition improve performance treatment.

Язык: Английский

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