Stability of chlorine dioxide and the research of storage water in tunnel

Objective:To understand the stability of chlorine dioxide(ClO2) solution,observe the disinfection effect of ClO2 for storage water in tunnel,and provide a basis for safe drinking in wartime or special conditions.Methods: Observe the stability of ClO2 solution in laboratory,the disinfection effect by model experiment,and the in-service use in reservoirs.Results: Disinfected the storage water in tunnel using ClO2 in 5 mg/L,90 days later,the concentration of ClO2 turned to 0.01 mg/L,total bacteria and coli group couldn′t be found,the disinfection effect was satisfactory.Conclusion: The effect of disinfection for storage water with 5 mg/L ClO2 in tunnel,a dark wet and out of light environment,was satisfactory for 90 days,it was sutiable for short-term disinfection.