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目的:了解二氧化氯(ClO2)溶液的稳定性,观察ClO2消毒剂对坑道水库储水的消毒效果,为战时或特殊情况下坑道内饮用水卫生保障提供依据。方法:实验室试验观察ClO2溶液的稳定性,现场模拟试验观察ClO2消毒效果,水库现场消毒观察ClO2实际应用情况。结果:根据储水量按5 mg/L ClO2对坑道水库储水进行消毒,消毒后90天ClO2浓度下降至0.01 mg/L,细菌总数、真菌数及大肠菌群均未检出,消毒效果满意。结论:5 mg/L ClO2消毒储水,在坑道阴暗、低温且避光的环境中90天消毒效果好,适合坑道储水短期消毒。
Objective: To understand the stability of chlorine dioxide (ClO2) solution and to observe the disinfection effect of ClO2 disinfectant on the reservoir water storage in tunnels, and to provide the basis for health protection of drinking water in tunnels in wartime or special circumstances. Methods: The stability of ClO2 solution was observed by laboratory test. The effect of ClO2 disinfection was observed by on-site simulation test and the actual application of ClO2 was observed by on-site disinfection of reservoir. Results: According to the water storage capacity, 5 mg / L ClO2 was used to sterilize the storage water in the tunnel reservoir. After 90 days of disinfection, the ClO2 concentration was reduced to 0.01 mg / L. The total number of bacteria, fungi and coliform bacteria were not detected, and the disinfection effect was satisfactory. Conclusion: 5 mg / L ClO2 disinfection water storage, in tunnel dark, cold and dark environment 90 days disinfection effect is good, suitable for short-term disinfection of tunnel water storage.