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目的 观察微电流与游离氯对水中脊髓灰质炎Ⅰ型病毒 (PV1)的协同灭活效果。方法 用微电流 0 4～1 2mA·cm-2 协同氯 0 2mg·L-1处理污染PV1水样 ,比较作用前后灭活率K值评价灭活效果 ,用透射电镜观察病毒形态变化。结果 电流密度达到 1 2mA·cm-2 与 0 2mg·L-1氯对水中PV1有协同灭活效应 ,与单独氯相比有显著差别 ,增加了氯的灭活效果 ,微电流作用后透射电镜下病毒颗粒集聚程度降低。结论 微电流协同氯可提高低浓度氯灭活水中病毒的效果。
Objective To observe the synergistic inactivation effect of micro-current and free chlorine on poliovirus type 1 virus (PV1). Methods The polluted PV1 water samples were treated with microcurrent of 0 4 ~ 1 2mA · cm-2 and chlorine 0 2mg · L-1. The inactivation rate was evaluated by K value before and after the treatment. The morphological changes of the virus were observed by transmission electron microscope. Results The current densities of 1 2 mA · cm-2 and 0 2 mg · L-1 had a synergistic inactivation effect on PV1 in water, which was significantly different from that of chlorine alone. The inactivation effect of chlorine was increased. Under the virus particles reduce the degree of agglomeration. Conclusion Micro-current synergistic chlorine can improve the effect of low concentration chlorine inactivating virus in water.