Medical wastewater discharged by hospitals shall not be directly discharged, as direct discharge would lead to severe pollution and pose potential threats to both the ecological environment and human health. This paper aims to provide a brief overview of the preparations required prior to the discharge of medical wastewater.  

Pollution in water bodies such as rivers and lakes is a common issue in our surroundings, and improper wastewater discharge—including that of medical wastewater—is a key contributing factor. Effective management of medical wastewater requires strict water quality control, treatment in compliance with relevant discharge standards, and systematic monitoring. A wide range of indicators are involved in such monitoring, and the frequency of monitoring is not standardized; instead, it should be determined based on the specific characteristics of the wastewater.  

It is thus evident that prior to discharge, medical wastewater must undergo proper treatment, with attention paid to monitoring indicators and frequency during the treatment process. The key points are as follows:  

1.Total residual chlorine monitoring: Total residual chlorine in wastewater shall be detected using an Online Total Residual Chlorine Analyzer. However, if chlorine-free disinfectants are employed, total residual chlorine is not a required monitoring indicator and may be omitted.  

2.Daily average sampling frequency: Sampling shall be conducted at hourly intervals, with a minimum of 3 samples per day. The final result shall be calculated as the daily average.  

3.Supplementary monitoring requirements: In addition to water quality monitoring, sludge shall be monitored before dredging, with a recommended dredging cycle of 180–360 days. Furthermore, deodorization measures must be implemented for exhaust gas emitted from the water treatment station.