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Effects of shock waves, ultraviolet light, and electric fields from pulsed discharges in water on inactivation of Escherichia coli
Bioelectrochemistry ( IF 4.8 ) Pub Date : 2017-12-02 , DOI: 10.1016/j.bioelechem.2017.11.011
Bing Sun , Yanbin Xin , Xiaomei Zhu , Zhiying Gao , Zhiyu Yan , Takayuki Ohshima

In this work, the bacterial inactivation effects of shock waves, ultraviolet (UV) light, and electric field produced by high-voltage pulsed discharge in liquid with needle-plate configurations were studied. The contributions of each effect on the bacterial killing ratio in the discharge process were obtained individually by modifying reactor type and usage of glass, quartz, and black balloons. The results showed that the location from the discharge center axis significantly influenced the effects of shock waves and electric fields, although the effect of UV light was not affected by the location in the reactor. The effects of shock waves and electric fields were improved by decreasing the distance from the discharge center axis. Under this experimental condition, the effects of shock waves, UV light, and electric fields produced by discharges on bacterial inactivation were approximately 36.1%, 30.8%, 12.7%, respectively. Other contributions seemed to be due to activated species.



中文翻译:

冲击波,紫外线和水中脉冲放电产生的电场对大肠杆菌灭活的影响

在这项工作中,研究了冲击波,紫外线(UV)和高压脉冲放电在针板式液体中产生的电场对细菌的灭活作用。通过改变反应器的类型以及玻璃,石英和黑色气球的使用,可以分别获得排放过程中每种对细菌杀死率的影响。结果表明,尽管反应器中的位置并不影响紫外线的影响,但从放电中心轴的位置会显着影响冲击波和电场的影响。通过减小距放电中心轴的距离,可以改善冲击波和电场的影响。在此实验条件下,冲击波,紫外线,细菌灭活产生的放电产生的电场和电场分别约为36.1%,30.8%和12.7%。其他贡献似乎归因于活化物种。

更新日期:2017-12-02
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