Rotor-stator reactor (RSR), a novel high-gravity device, was employed in the O₃/persulfate (PS)/Fe²⁺ process to enhance the degradation of indigo carmine (IC) in simulated wastewater. It was found that IC degradation efficiency increased with the increase of Fe²⁺ concentration, RSR rotation speed, O₃ concentration and gas-liquid ratio, but decreased with the increase of IC concentration and temperature. When the rotation speed of RSR increased from zero to 1200 rpm, IC degradation efficiency increased from 25.6% to 64.2%. Because of the synergetic effects of the oxidative species (O₃, OH, SO₄⁻ etc.), IC degradation efficiency in the O₃/PS/Fe²⁺ process was significantly higher than that in the O₃ or PS/Fe²⁺ process. The high IC degradation efficiency can also be attributed to the good micromixing effect of the RSR. When the O₃/PS/Fe²⁺ process in the RSR was adopted before the sequencing batch reactor activated sludge process, both IC and COD degradation efficiencies increased significantly as a result of the improved biodegradability of the IC wastewater. Furthermore, a possible degradation mechanism of IC in the O₃/PS/Fe²⁺ process was proposed.

O ₃ /过硫酸盐（PS）/ Fe ²⁺工艺中采用了新型的高重力装置转子-定子反应器（RSR），以增强模拟废水中靛蓝胭脂红（IC）的降解。结果表明，随着Fe ²⁺浓度，RSR转速，O ₃浓度和气液比的增加，IC降解效率增加，但随着IC浓度和温度的升高IC降解效率降低。当RSR的转速从零增加到1200 rpm时，IC降级效率从25.6％增加到64.2％。由于氧化性物质的协同效应（O的₃，OH，SO ₄ ^-在O，IC降解效率等）₃/ PS / Fe ²⁺工艺显着高于O ₃或PS / Fe ²⁺工艺。高IC降解效率还可以归因于RSR的良好微混合效果。当在测序间歇反应器活性污泥工艺之前采用RSR中的O ₃ / PS / Fe ²⁺工艺时，由于提高了IC废水的生物降解性，IC和COD的降解效率均显着提高。此外，提出了在O ₃ / PS / Fe ²⁺工艺中IC可能的降解机理。