https://www.sciencedirect.com/science/article/abs/pii/S0927775725017145?via%3Dihub

• Ozone micro-nanobubbles was 77.6 % higher than by ozone aeration.

• ATZ degradation was primarily driven by ¹O₂.

• Common groundwater components ( and Mg²⁺) enhanced ATZ degradation

• The micro-nanobubbles system exhibited effective dechlorination capability for ATZ.

• Proposed the degradation mechanism of ATZ by ozone micro-nanobubbles technology.

This study explored the efficacy and mechanisms of an ozone micro-nanobubbles

system in the removal of atrazine from groundwater. Key findings were summarized

as follows:(1) The ozone micro-nanobubbles system demonstrated approximately

100 % degradation efficiency for 10 mg·L⁻¹ ATZ with a 30-minute treatment time in

simulated wastewater, outperforming conventional ozone aeration by 77.6 %. (2)

Optimum efficiency occurred at a gas flow rate of 160 ml·min⁻¹