Mathews A P, Panda K K, Ananthi S, Padmanabhan K
Department of Civil Engineering, Kansas State University, Fiedler Hall, Manhattan, KS 66506, USA.
Water Sci Technol. 2004;49(4):19-24.
An in situ ozone generator design based on a novel type of corona discharge tube construction was tested to examine enhancements in mass transfer and ozonation efficiency over conventional systems. In this design, the discharge gap is kept juxtaposed to the tubular pathway through which the treatment fluid is passed. A porous inner electrode tube is employed in the discharge tube, and the generated ozone diffuses through this porous tube and dissolves and reacts with the contaminants in the fluid that is being treated. The inner porous ceramic tube is grounded while the outer glass electrode is positively charged for corona discharge. Oxidation studies conducted on Reactive Blue 19 dye indicate that the time required for 90% color removal is about half that of a conventional ozone generation and bubble diffusion system at the same ozone dosage.
基于一种新型电晕放电管结构的原位臭氧发生器设计，经过测试以检验其在传质和臭氧化效率方面相对于传统系统的提升。在这种设计中，放电间隙与处理流体所流经的管状通道并列设置。放电管中采用了多孔内电极管，所产生的臭氧通过该多孔管扩散，并溶解于正在处理的流体中，与其中的污染物发生反应。内部多孔陶瓷管接地，而外部玻璃电极带正电以进行电晕放电。对活性蓝19染料进行的氧化研究表明，在相同臭氧剂量下，实现90%脱色所需的时间约为传统臭氧生成和气泡扩散系统的一半。
