【作者】 宗旭；

【导师】 白希尧；

【作者基本信息】 大连海事大学 ， 环境科学， 2004， 硕士

【摘要】 高浓度臭氧水是强氧化剂、杀菌消毒剂、漂白除味剂，在水处理和空气净化等环境保护领域具有重要的意义。本文结合国家自然科学基金重点资助项目“高气压下强电场电离气体的方法及其应用的基础研究”（项目编号：60031001）和辽宁省国际合作项目“高效率高浓度GGD型臭氧产生设备开发”（项目编号：98220013），针对当前国内外臭氧和臭氧水产生技术现状，采用介质阻挡强电离放电方法，将非平衡等离子体的反应条件从低气压扩展到高气压，在分子层次上将O₂电离、离解，制成高浓度臭氧，并采用高效的溶解方法，将产生的高浓度臭氧溶解在水中，制取高浓度臭氧水溶液。 本文结合介质阻挡强电离放电制取高浓度臭氧的理论和当前臭氧溶解的理论及方法，进行了制取高浓度臭氧气体的实验研究。讨论了施加电压、气体流量、放电间隙、冷却水温度、能流密度、电源脉冲导通时间、模块叠加等对臭氧气体浓度和产生效率的影响，制取的臭氧浓度高达140.6g／m³。在获得高浓度臭氧气体的前提下，对臭氧溶解进行了实验研究，讨论了应用臭氧量、气液比、系统压力、水流量、溶解方式、溶解时间等对臭氧溶解效率和臭氧水浓度的影响，臭氧的传质效率达到99％，有效溶解效率达到72％，产生的臭氧水浓度最高可达9.35g／m³，并且实现了臭氧水产生设备的小型化。 高浓度的臭氧水可以作为药剂直接加入输水管道中，在水的输送过程中实现水的净化和污水的深度处理，省去传统方法中的反应池、氧化塔、曝气池等庞大设备，大幅度降低了能耗和运行成本。更多还原

【Abstract】 High concentration ozone water is a kind of strong oxidant, disinfectant, deodorant and bleaching agent. It is widely used in water treatment, air treatment and other aspects of environmental protection. In this paper, following the key NSFC Project "Studies on the Method and Application of Gas Molecules Ionized with Strong Electric Field at High Pressure" and the International Cooperation Project of Liao Ning Province "Exploration of GGD Type Ozone Generator with High Efficiency and Concentration ", oxygen is ionized and dissociated on molecular scale, and high concentration ozone is generated by dielectric barrier aiscnarge with strong ionization which expands the reactive condition of plasma chemistry from low pressure to high pressure. Then high concentration ozone water is generated with the dissolution of ozone gas with high efficient dissolving methods.The theory of generating high concentration ozone by dielectric barrier discharge with strong ionization, the theory of generating high concentration ozone water and the methods of dissolving ozone gas into water are presented. Experimental studies on the generation of high concentration ozone gas are carried out. Factors that affect the concentration of ozone gas and efficiency such as applied voltage, gas flux, discharge gap, cooling water temperature, energy density, breadth of impulse and modules splicing are discussed. The concentration of ozone gas is up to 140.6g/m3. Based on the generation of high concentration ozone, the experimental studies on the dissolution of ozone gas with different methods are carried out and the factors that affect the dissolving efficiency and concentration of ozone water such as applied ozone dose, gas to liquid ratio, system pressure, water flux, dissolving methods and dissolving time are discussed. The mass transfer efficiency of ozone is up to 99%. The effective dissolving efficiency of ozone is up to 72% and the concentration of ozone water is 9.35g/m3 in the maximum.High concentration ozone water can be added to the pipelines directly to treatwastewater during the course of water transportation. Thus it can avoid the use of reaction pool, oxidation tower and bubble chamber and reduce the energy consumption and running cost greatly.更多还原