医疗废弃物电子束辐照灭菌处理效果  

Sterilization of medical waste by electron beam

作　　者：朱焕铮 张涛 韩筠松 陈海 何仕均 ZHU Huanzheng;ZHANG Tao;HAN Yunsong;CHEN Hai;HE Shijun(China General Nuclear Dasheng Electron Accelerator Technology Co.,Ltd.,Suzhou 215214,China;China General Nuclear Dasheng Technology Co.,Ltd.,Suzhou 215214,China)

机构地区：[1]中广核达胜加速器技术有限公司,苏州215214 [2]中广核达胜科技有限公司,苏州215214

出　　处：《辐射研究与辐射工艺学报》2022年第3期69-78,共10页Journal of Radiation Research and Radiation Processing

基　　金：医疗废物辐照应急处理科技示范装置(国家国防科技工业局核技术推广应用项目)资助。

摘　　要：利用电子束对医疗废弃物进行不同剂量的辐照处理,并以短小芽孢杆菌和枯草芽孢杆菌作为微生物指示菌,通过微生物计数检验灭菌效果,分析吸收剂量和医疗废弃物材质对微生物灭活效果的影响。结果表明:吸收剂量与存活微生物菌对数值线性相关。短小芽孢杆菌和枯草芽孢杆菌的D_(10)值分别为2.45 kGy和1.22 kGy。吸收剂量为15 kGy时,医疗废弃物模拟物上的短小芽孢杆菌和枯草芽孢杆菌杀灭对数值达到6,满足现行医疗废弃物微波和化学消毒技术规范的处理要求。To study the effectiveness of electron-beam sterilization of medical waste, medical wastes were irradiated with different doses of an electron beam, and Bacillus pumilus and Bacillus atrophaeus were used as microbial indicators. Microbial counting was used to analyze the effects of the absorbed dose and medical waste material on the inactivation of microorganisms. The results showed that the absorbed dose was linearly correlated with the logarithm of the total number of viable microbial colonies;the D_(10) values of Bacillus pumilus and Bacillus atrophaeus were 2.45 kGy and 1.22 kGy,respectively.When the absorbed dose was 15 kGy, the killing logarithm of Bacillus pumilus and Bacillus atrophaeus on the medical waste simulants reached 6, thereby meeting the current technical requirements for the microwave and chemical disinfection of medical waste.

关 键 词：医疗废弃物 电子束辐照 灭菌 D_(10)值 

分 类 号：X799.5[环境科学与工程—环境工程] TL99[核科学技术—核技术及应用]