水蒸汽等离子体技术处理水中难降解有机污染物及机理研究

由于具有高焓值、高反应活性和环境友好等优点，水蒸汽等离子体在有机废物处理方面具有非常好的应用前景。本项目拟采用自主研制的水蒸汽等离子体发生器，直接将有机废水作为等离子体工作介质引入发生器中产生水蒸汽等离子体射流，同时将射流注入有机废水中处理水中有机污染物；研究水蒸汽等离子体射流在不同工作介质条件下（污染物的性质、组成和浓度等）的特性；通过表征和分析射流等离子体中的活性粒子及浓度、液相中有机污染物降解的中间产物，研究射流等离子体中活性粒子在液相非平衡化学反应动力学中的作用，阐明有机污染物在水蒸汽等离子体作用下的降解机理；揭示水中有机污染物分解、转化及产物生成的规律。预期研究结果对于水环境中有机污染物的治理具有重要的科学意义和应用价值。

Due to high enthalpy, high activity and environment friendly, steam plasma has promising for application in organic waste treatments. The project will adopt an original water vapor plasma jet generator, in which steam plasma jet is generated by the organic wastewater introduced as plasma forming gas. The steam plasma jet is then introduced to inject into the organic waste water to oxidation degradation of organic pollutants in water. Parametric studies of the steam plasams will be done under different plasma working media (the composition, properties and concentration of the organic pollutants). The performance of biorefractory organic wastewater treatment will be analyzed, and the influence factors on plasma treatment performance will also be investigated by adjusting experimental conditions and control parameters. By analysis of the active particles and their concentration in steam plasma and intermediate product of organic contaminants degradation in liquid phase, we study that the roles of the active particles in steam plasma jet on liquid non-equilibrium chemical kinetics. It will be clarified that the mechanism of organic pollutants degradation by steam plasma. It will be reveal the rules of organic pollutants decomposition, conversion and product generation by steam plasma treatment.The expected results for the treatment of organic pollutants in the water environment has important scientific significance and application value.