Urban sewage facilities play a significant role in reducing the pollution load flowing into rivers and improving the water environment quality of cities. During the treatment process, a large amount of chlorine disinfectant is added. When the disinfectant enters the sewer and the sewage treatment plant, if the amount of disinfectant is too high, it will have some adverse effects on the biochemical treatment of the sewage treatment plant. Among them, it will affect the nitrogen and phosphorus removal effect, and further affect the stable compliance of the sewage quality in the sewage treatment plant.

How can we avoid some adverse consequences caused by the excessive use of disinfectants?

The key issue lies in properly controlling the usage of chlorine disinfectants. Due to disinfection by households and enterprises, the content of domestic sewage entering the pipeline network is high, which will cause the residual chlorine in the sewage treatment plant to be relatively high, thereby affecting the quality of the effluent. In addition, disinfectants may also produce this product (such as chloroform, etc.) in the water environment. This type of product has this mutational activity function, which leads to mutations in the TA98 and TA100 strains. Studies have shown that chlorine-containing disinfectants have a latent toxicity in aquaculture water environments. They not only harm aquatic organisms but also, if these toxic substances enter the human body through consumption, the consequences would be unimaginable. So what we need to do is to control the use of chlorine disinfectants as much as possible and adjust their usage, thereby reducing and eliminating some adverse effects and ensuring the safety of water quality!

What if the appropriate dosage of chlorine disinfectant is known? Staff can use the RCl900 Total Residual Chlorine Online Analyzer to monitor the changes in residual chlorine in water in real time and keep the chlorine disinfectant added within the safety index range.