电晕放电自由基簇射技术杀菌实验研究  

Study on Inactivation of Microbe Contaminants via Corona Discharge Radical Shower

作　　者：刘新[1] 康颖[1,2] 邹芳[1] 杨阳[1] 丁田田[1] 吴祖成[1] 

机构地区：[1]浙江大学环境电化学与化学储能实验室能源清洁利用国家重点实验室,杭州310058 [2]浙江省环境监测中心,杭州310015

出　　处：《载人航天》2015年第2期125-129,共5页Manned Spaceflight

摘　　要：控制微生物污染是长时间载人航天系统中生命保障的关键课题。采用电晕放电自由基簇射技术控制微生物的生长并对其灭活。结果表明:水和氧分子放电激活产生的氧化性自由基可使微生物细胞壁和细胞膜被刻蚀或直接氧化分解,从而导致微生物失活,致菌失活效率在99.6%以上。整个灭菌过程在反应器内进行不对人体和其它器材造成损害,适合于空间站等密闭生存系统内空气净化和微生物控制。The control of microbe contaminants is an important part of the life support system during long term manned flight. DC corona discharge technique was adopted to inhibit the microbe's grow rate and further inactivate it. The results showed that the oxidative radicals generated could etch or decompose the cell wall and membrane of microbe,thus resulted in its inactivation. The inactivation process of microbe was carried out within corona discharge radical shower and thus it would not harm the objects. Therefore,the technique could serve as an alternative method for the air purification and the microbe control of the closed living system,such as the space station.

关 键 词：密闭舱室 微生物 羟基自由基 失活 

分 类 号：V444.35[航空宇航科学与技术—飞行器设计] Q691[生物学—生物物理学]