Randomized trial evaluates solar-assisted AOPs for boscalid degradation in soils, suggesting treatment effectiveness varies by soil properties.
Key Points
This research aims to assess the efficacy of solar-assisted advanced oxidation processes (AOPs) for degrading boscalid in various soil types.
Conducted degradation experiments using TiO2-photocatalysis, modified photo-Fenton-like treatment, and persulfate-photoxidation under natural sunlight.
Experimented with two soils with differing organic matter contents (0.03% and 0.39%).
Measured degradation rates and post-treatment soil properties under controlled lab conditions.
PS-photooxidation achieved 98% degradation in Soil 1 and 87% in Soil 2 after 24 hours of sunlight.
TiO2-photocatalysis and modified photo-Fenton-like treatment reduced boscalid by 91% and 79% in Soil 1, and 59% and 68% in Soil 2, respectively.
Kinetic analysis showed the highest rate constant for PS-photooxidation (655 × 10−3 h−1 in Soil 1 and 79 × 10−3 h−1 in Soil 2).