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Optimization of process parameters to generate plasma activated water and study of physicochemical properties of plasma activated solutions at optimum condition
Journal of Applied Physics ( IF 2.7 ) Pub Date : 2021-02-23 , DOI: 10.1063/5.0033848
Vikas Rathore 1, 2 , Sudhir Kumar Nema 1, 2
Affiliation  

Plasma-activated water (PAW) is gaining significant attention these days due to its potential use as a disinfectant, pesticide, food preservative, cancer cell treatment, fertilizer, etc. These applications of PAW depend on its reactivity (oxidizing-potential) and electrical conductivity (EC). In the present work, we have studied the effect of process parameters, viz., air flow rate, water stirrer speed, and the temperature of water during plasma–water interaction on the reactivity and EC of PAW using a three-way full factorial design of experiments. We have also attempted to optimize these process parameters. At optimum values of these parameters, we studied how the physicochemical properties of PAW vary by changing the volume of water and discharge power. Furthermore, we studied the physicochemical properties of the plasma-activated solution (PAS) and how the EC and pH of virgin solutions affect these properties. The obtained results of the present investigation showed that the flow rate of air, plasma treatment time with water, volume of water, and plasma discharge power play a significant role in controlling the reactivity and EC of PAW. Moreover, the pH and EC of virgin solution do not have a significant (p < 0.05) impact on the reactivity of PAS. This investigation also shows the study of aging time on reactive oxygen–nitrogen species and its effect on the physicochemical properties of PAW. Additionally, observed changes in physicochemical properties, NO3 ions, and H2O2 concentration in PAW were less than 10%. However, NO2 ions and dissolved O3 concentration in PAW decreased significantly over time.

中文翻译:

优化工艺参数以产生血浆​​活化水,并在最佳条件下研究血浆活化溶液的理化性质

血浆活化水(PAW)由于其潜在地用作消毒剂,杀虫剂,食品防腐剂,癌细胞治疗,肥料等而备受关注,这些天来,PAW的这些应用取决于其反应性(氧化电位)和电电导率(EC)。在目前的工作中,我们使用三向全因子设计研究了工艺参数,即空气流速,水搅拌器速度以及血浆与水相互作用过程中的水温对PAW反应性和EC的影响。实验。我们还尝试优化这些过程参数。在这些参数的最佳值下,我们研究了PAW的理化特性如何通过改变水量和放电功率而变化。此外,我们研究了血浆活化溶液(PAS)的理化性质以及原始溶液的EC和pH如何影响这些性质。本研究的结果表明,空气流量,水的等离子体处理时间,水量和等离子体放电功率在控制PAW的反应性和EC方面起着重要作用。此外,原始溶液的pH和EC对PAS的反应性没有显着影响(p <0.05)。这项研究还显示了对活性氧氮物种的老化时间及其对PAW物理化学特性的影响的研究。此外,观察到理化性质的变化,NO 用水的等离子体处理时间,水量和等离子体放电功率在控制PAW的反应性和EC方面起着重要作用。此外,原始溶液的pH和EC对PAS的反应性没有显着影响(p <0.05)。这项研究还显示了对活性氧氮物种的老化时间及其对PAW物理化学特性的影响的研究。此外,观察到理化性质的变化,NO 用水的等离子体处理时间,水量和等离子体放电功率在控制PAW的反应性和EC方面起着重要作用。此外,原始溶液的pH和EC对PAS的反应性没有显着影响(p <0.05)。这项研究还显示了对活性氧氮物种的老化时间及其对PAW物理化学特性的影响的研究。此外,观察到理化性质的变化,NO 这项研究还显示了对活性氧氮物种的老化时间及其对PAW物理化学特性的影响的研究。此外,观察到理化性质的变化,NO 这项研究还显示了对活性氧氮物种的老化时间及其对PAW物理化学特性的影响的研究。此外,观察到理化性质的变化,NO3 -离子,和H 2 ö 2在PAW浓度均小于10%。然而,NO 2 -离子和溶氧3浓度在PAW随时间显著下降。
更新日期:2021-02-25
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