The efficiency of a rotor-stator device for water disinfection based on hydrodynamic cavitation is investigated. Water is infected with E.coli and E.faecalis with initial concentrations in the range 5x10²-1.2x10⁶$5\text{x}{10}^2-1.2\text{x}{10}^6$CFU/ml. Various geometries of the cavitation channel between rotor and stator are tested, achieving bacterial annihilation in less than 10 minutes of treatment times. Microorganism permanent elimination is verified via micro-seeding to discard viable non-culturable bacteria; micro-seeding was done for those samples displaying no CFU growth via normalized cultures on a Petri dish. TEM photographs are analyzed and the extent of bacterial damages is tentatively correlated with the various cavitation mechanisms. Rotor-stator cavitation assemblies used in the current research are between one and two orders of magnitude more energy efficient than those tested by other investigators. Acoustic pressure spectra are measured to assess the implosion intensity. Parametric analyses are conducted changing the rotor diameter (110-155 mm), the cavitation channel contraction ratio, A_max/A_min(4.56-5.0)$A_{\mathit{max}}/A_{\mathit{min}}(4.56-5.0)$, and the number of contractions (N_r:58-80$N_r:58-80$ rotor vanes; N_s:8-16$N_s:8-16$ stator vanes).

研究了基于流体动力空化的水质转子-定子装置的效率。水被大肠杆菌和粪肠球菌感染，初始浓度在5x10 ² -1.2x10 ⁶范围内$5\text{X}{10}^{\mathrm{2个}}--1.2\text{X}{10}^6$CFU /毫升。测试了转子和定子之间空化通道的各种几何形状，在不到10分钟的处理时间内即可实现细菌灭绝。通过微生物播种验证了微生物的永久消灭，以丢弃存活的不可培养细菌。通过培养皿上的归一化培养，对那些没有CFU生长的样品进行微接种。分析TEM照片，细菌破坏的程度初步与各种空化机制相关。当前研究中使用的转子-定子气穴组件比其他研究人员测试的能效高出一到两个数量级。测量声压谱以评估内爆强度。进行参数分析以更改转子直径（110-155毫米），甲_最大值/ A_分钟（4.56-5.0）${\mathrm{一个}}_{\mathit{最大限度}}/{\mathrm{一个}}_{\mathit{分}}（4.56--5.0）$，以及收缩次数（N _r：58-80${ñ}_{\mathrm{[R}}：58--80$转子叶片；N _s：8-16${ñ}_s：8--16$ 定子叶片）。