Zheng Xiaohong, Li Kejun, Wang Ruzhu, Zhao Liping, Xu Lisa X, Chen Yazhu, Jin Xinqiao, Gu Bo, Bai Jingfeng, Liu Hongmin, Ye Xiaojiang
1Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, 200030 Shanghai, China.
2School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 200030 Shanghai, China.
Chin Sci Bull. 2004;49(3):306-310. doi: 10.1007/BF03182817.
In this research, high voltage static electricity and ultraviolet technologies were integrated to an air purifying device which can be used to trap and kill airborne bacteria and viruses in central air-conditioning systems. An experimental platform was built to mimic the central air system, in which the efficacy of the newly built device was examined. In addition to the standard physical and chemical tests, bacteriophages were used to simulate airborne viruses in the experimental system. The bacteriophage suspension was aerosolized into the air with ultrasonic wave atomization. The result showed that more than 86% removal efficiency of micro-particles (<10 micron in diameter) were removed after the device was in operation in a building and more than 95% of bacteriophages in the experimental system. It is concluded that the integrated air purifier is suitable for controlling air quality and preventing virus transmission through the central air system.
本研究将高压静电和紫外线技术集成到一种空气净化装置中，该装置可用于捕获和杀死中央空调系统中的空气传播细菌和病毒。搭建了一个模拟中央空气系统的实验平台，在该平台上检测新建装置的效能。除了标准的物理和化学测试外，还使用噬菌体来模拟实验系统中的空气传播病毒。通过超声波雾化将噬菌体悬浮液雾化到空气中。结果表明，该装置在建筑物中运行后，直径小于10微米的微粒去除效率超过86%，实验系统中噬菌体的去除率超过95%。得出的结论是，该集成空气净化器适用于控制空气质量和防止病毒通过中央空气系统传播。
