Advanced Functionalization of Plasma Bubble Flow Systems by Microdischarge and Its Innovative Applications

在原始和改进的脉冲放电多泡射流系统中，成功地产生了羟基和氧自由基。然后从实验上阐明了水处理的特性，如分解溶液中有害的持久性物质。研究了具有放电的气泡射流的动力学行为、气泡界面的流光传播和处理溶液中自由基的产生。对优化后的水处理工艺，从外加电压、占空比、频率、气体流量和系统配置等方面，阐明了亚甲基蓝和醋酸的溶氧组成比和能效。通过可视化分析，建立了细管内气泡在直流放电作用下的动态行为模型。最后，建立了等离子体化学模型，阐明了高温高压条件下气泡中自由基的产生过程和寿命。

OH and O radicals are successfully generated in the original and improved multiple bubble jet systems with pulsed discharge. Then water treatment characteristics such as decomposion of harmful persistent substances in solution were clarified experimentally. The dynamic behavior of bubble jet with discharge, streamer propagation at the bubble interface and radicals generation in the treated solution were investigated. The docomposition rate and energy efficiency of methylene blue and acetic acid were clarified for the applied voltage, duty ratio, frequency, gas flow rate and systems configuration for the optimized water treatment processes. Furthermore, the dynamic behavior model of bubble in a fine tube under DC discharge was proposed by visulalization analysis. Finally, plasma chemistry model was also established to clarify the radical generation process and radical life time in a bubble with high pressure and high temperature conditions.