Whether in the present or in the future, the issue of water resource security is a matter of concern. One of the reasons why water resources are becoming increasingly scarce nowadays is that water pollution has made the water sources undrinkable. Therefore, it is necessary to monitor all the parameters of water quality well to see if they meet the standards. Only in this way can we ensure whether the water quality is safe.

At this time, the rational development of water resources is particularly important! On Earth, water resources are actually a cyclical process, and the water cycle of groundwater is very important. Therefore, doing a good job in monitoring and protecting groundwater has become an essential task. Real-time monitoring of water quality requires the use of a water quality analyzer. Through this instrument, various parameters in the water quality are monitored (different parameters require different water quality analyzers). Once any adverse reactions such as exceeding the standard are detected, they can be dealt with promptly. It plays a role in protecting water sources.

With the continuous advancement of technology and the improvement of people’s living standards, the equipment related to the monitoring and treatment of water sources such as sewage and wastewater is constantly being updated. The online water quality analyzer is an instrument that can accurately and conveniently detect different parameters in water, such as COD, total phosphorus, total nitrogen, biological toxicity, coliform bacteria, and total residual chlorine. Among them, the detection of coliform bacteria and total residual chlorine content in water is relatively common in the online monitoring of medical wastewater and is an important monitoring item in medical wastewater.