In such a complex hospital, it is essential to disinfect and sterilize medical wastewater. But what methods should be used for disinfection treatment? There are more of these! In this article, let’s learn together about the chlorine dioxide disinfection method for medical crimson.
When it comes to chlorine dioxide disinfection, it has been listed by the World Health Organization as a highly safe disinfectant and can be regarded as one of the most efficient chlorine-containing disinfectants. Its disinfection process utilizes molecular chlorine dioxide in water. The characteristic of this disinfectant is that it can easily penetrate the cell walls of microorganisms, oxidize the proteins within them, and inactivate their enzymes, thereby disrupting protein synthesis and achieving the effect of eliminating bacteria.
We know that liquid chlorine disinfectants may produce by-products during the disinfection process, which have the potential to cause cancer and toxicity. Chlorine dioxide disinfection is relatively much better. It generates relatively fewer disinfection by-products such as trihalomethanes, which can reduce some hazards. Moreover, it has strong adaptability to water environments, and thus is less affected by pH values. During the disinfection process of wastewater containing ammonia, it will not react with ammonia in the water, and the disinfection effect will not be affected.
So the Question Arises?
What items need to be monitored for chlorine dioxide disinfection? Why can’t residual chlorine be detected after chlorine dioxide disinfection?
After disinfection of medical wastewater, common monitoring items include residual chlorine, PH value, ammonia nitrogen, total phosphorus, etc. Additionally, coliform bacteria are monitored monthly, and Salmonella and Shigella are monitored regularly. But some people may ask, if a user is using an online total residual chlorine analyzer to test the residual chlorine in water and finds that there is no residual chlorine in the water, then what’s going on? In fact, it is because when chlorine dioxide dissolves in water, most of it does not undergo hydrolysis reactions but exists in the form of chlorite ions. The chlorine in chlorite ions has a valence of +3, while the chlorine in free residual chlorine has a valence of 1-.
However, in general, for the common chlorination method used in hospital wastewater disinfection, the requirements for the online monitoring project of medical wastewater still need to include the parameter of total residual chlorine.
