It is very common for pathogenic microorganisms to exist in wastewater, especially in industrial effluents from hospitals, biological products, and other sources, where large quantities of disease-causing microorganisms are present. If such pathogenic microorganisms are discharged without treatment, they can pose certain threats to the ecological environment and human health. So, how should they be properly handled?

For these pathogenic microorganisms, if they are highly concentrated and present in large quantities, they need to be disinfected separately before undergoing secondary biological treatment along with other wastewater. This can reduce the consumption of disinfectants. It is important to note that pathogens can survive in water for extended periods, and some viruses and parasites are particularly difficult to eliminate. So, this point requires attention!

There are also many methods for disinfection and sterilization, such as: lime treatment, heat treatment, ultraviolet irradiation, ultrasound, chlorine dioxide, chlorine, and other disinfection methods. Among these, several methods are highly effective. However, it is important to note the presence of residual chlorine in water. Whether there is too much residual chlorine or none at all, both situations are unfavorable for water treatment. If there is no residual disinfectant, it becomes impossible to prevent the reproduction of microorganisms. On the other hand, excessive residual chlorine can react with other pollutants to produce toxic and carcinogenic substances.

Friendly Reminder

If you are using chlorine disinfection, it is necessary to install an RCl900 Total Residual Chlorine Online Analyzer to monitor the residual chlorine in the water in real time. If any (exceedance) is detected, it should be addressed promptly. This instrument is widely used across various industries, with Medical Wastewater Online Monitoring being one of the most common applications!