光触媒技术在轨道交通车辆车厢内空气治理中的应用

Application of Photocatalytic Technology for Air Cleaning in Rail Transit Vehicles

分析了轨道交通车辆车厢内空气污染的产生原因,介绍了光触媒处理有害化学物质、细菌和病毒的机理,以及治理污染的手段。对应用光触媒技术治理轨道交通车厢内空气污染的效果进行了实车在线测试,结果表明,光触媒能有效降低车厢内甲醛和PM 2.5的含量,光触媒处理的车厢细菌数明显减少。

Volatile organic compounds （VOC） and virus are the major pollutants inside rail transit vehicles, which sig- nificantly reduce air quality and influencepassengers＂ health. The technical and economic feasibility of the photo- catalytic technology has been demonstrated for air quality control in rail transit vehicles. In this article, the new pho- tocatalytic technology is introduced. In a practical case, the formaldehyde, PH 2.5 content and the number of bacteria are obviously reducedby adopting this method.