二元液体二氧化氯消毒剂对大肠杆菌杀灭性能研究

STUDY ON THE EFFICACY OF A BINARY LIQUID CHLORINE DIOXIDE DISINFECTANT IN KILLING ESCHERICHIA COLI

目的了解一种二元液体二氧化氯消毒剂的杀菌性能。方法采用载体定量实验方法,对该消毒液杀菌效果进行了实验室研究。结果用含二氧化氯100 mg/L的该消毒剂水溶液对载体上大肠杆菌杀灭作用的D值为1.37 min,浓度系数为0.6582。含二氧化氯100 mg/L的该消毒剂水溶液对菌片上的大肠杆菌作用6 min,杀灭率为100%。结论该二元液体二氧化氯消毒剂对大肠杆菌杀灭效果较好。

Objective To know the germicidal efficacy of a binary liquid chlorine dioxide disinfectant. Method Carrier quantitative germicidal test was used to study its efficacy in killing Escherichia coli with different chlorine dioxide concentration and different contact time. Results The D value of efficacy of the solution containing chlorine dioxide 100 mg/L in killing E. coli was 1.37 min, and the concentration coefficient was 0. 6582. The solution containing chlorine dioxide 100 mg/L with a 6 min contact time killed 100% of E. coli on carriers. Conclusion The binary liquid chlorine dioxide disinfectant has good efficacy in killing E. Coli.